Anyone who knows modified cars will have heard of the Ring Brothers, builders of some of the greatest custom machines ever conceived. With huge scope and an equally impressive price tag, these incredible vehicles take every single piece of a build to the next level. This week, we’re sitting down with the fabricator responsible for bringing these works of art to life.

👉 Use code ‘RING100’ to get $100 off HPA’s Fabrication Starter Package:https://hpcdmy.co/fpackageb

When it comes to fabrication, Ring Brothers’ Ryan Fielding is all about the finer details, and that makes him the perfect person to head up the creation of this Wisconsin-based shop’s incredibly impressive builds that somehow perfectly mix subtle with insane. 

Ryan kicks off the conversation by telling us how he got involved in fabrication and eventually made his way into the Ring Brothers shop. That naturally takes us to the company itself, and Ryan spends time discussing Ring Brothers’ ethos in building its unique resto-mod machines. This involves thinking outside the box, unmatched craftsmanship, and a whole lot of attention to detail. 

With build budgets starting at around $600,000, we had to ask — how is that kind of money justified, how do they find the type of enthusiasts who want to spend the big bucks, and what do these customers get for their money?

Ryan also discusses his likes and dislikes in the fabrication game, Ring Brothers’ latest Aston Martin build, as well as what improvements in 3D printing and scanning technologies have done for his work.

With some great chats on TIG welding, and a dive into what separates an average fabricator from a great one, this episode is perfect for anyone interested in the fabrication game. 

Instagram: @fabguy_ryan, @ringbrothers
Facebook: Ringbrothers
Youtube: Ringbrothers
WWW: ringbrothers.com

👉 Don’t forget, you can use ‘‘RING100’ to get $100 off HPA’s Fabrication Starter Package: https://hpcdmy.co/fpackageb

Timestamps:

0:00 Fabricating the BEST Custom Cars on Earth.
4:20 How did you get interested in cars?
6:53 Do you have any formal qualifications?
9:27 What do you think separates a high-level fabricator from an average fabricator?
13:42 What is it that keeps you passionate about fabrication?
17:14 Give us an overview of Ring Brothers?
23:54 When did Ring Bros become a big name in the custom car scene?
29:59 What does your typical build process look like?
34:26 How do you find the clients for these SEMA-level builds?
39:49 What does a Ring Brothers build cost?
41:26 How much input does the customer have in these builds?
48:55 How long does one of your big-end builds take?
52:41 How do you keep price expectations updated with your clients?
56:20 Why are Roadster Shop chassis so good?
1:02:34 Do you do wiring in-house?
1:05:05 How long have Ring Brothers been using CAD, 3D scanning & modelling?
1:09:24 Why did you decide to bring CNC machining in-house?
1:13:21 Give us the rundown on the Aston Martin DBS
1:17:36 How do you decide to use carbon fibre or steel? Pros and cons?
1:23:49 Is there still a place for a MIG welder in Motorsport Fabrication?
1:26:57 Top 3 TIG Welding tips?
1:33:53 What to look for when buying a MIG or TIG?
1:38:39 What fabrication equipment are you using on a daily basis?
1:44:29 Final 3 questions

You might love the look and sound of your flame-tune, but is it killing your catalytic converter (CAT)?

In this interview, Matt Latino from G-Sport by GESi explains the limitations of factory catalytic converters and why performance builds often require something more capable.

Use ‘PODCAST75’ for $75 off your first HPA course here: https://hpcdmy.co/hpa-tuned-in

G-Sport’s aftermarket catalytic converters are EPA-compliant, stainless steel, and designed for high horsepower, but they’re not indestructible. Matt dives into the real-world causes of CAT failures, including improper sizing, rich tuning, and aggressive launch control or anti-lag strategies. Burble, flame, and pop tunes might be fun, but they push unburnt fuel through your exhaust and straight into your catalytic converter — which can result in thermal overload or even complete failure.

Like tyres on a track day, pushing your CATS too far too often will shorten their lifespan dramatically. Matt shares practical advice on how to make power in a street car while keeping your CAT alive, and what makes GESi’s designs different from cheaper OEM-style ceramic core converters.

Many exhaust specialists already include the likes of G-Sport CATS in their complete systems, so it's possible you might even have one and be benefiting from the performance gains.
------------------------------------
TIME STAMPS:
0:00 - G-Sport by GESi
0:22 - Limitation of Factory Catalytic Converter
0:53 - Exhaust Backpressure
1:06 - Aftermarket Options
2:10 - Aftermarket Vs OEM Construction
2:29- Why OEMs Use Ceramic
2:39 - Stainless Steel Construction
2:50 - Not Bulletproof
3:20 - Tuning Mistakes
4:00 - Everything In Moderation
4:45 - Tyre Analogy
5:00 - Thanks Matt!
5:30 - BUILD.TUNE.DRIVE

Will carbs on V8 hotrods etc become a thing of the past when some alternatives are this easy?

For those unfamiliar with ECU tuning, switching from a carburettor (carb) to EFI can seem daunting, but it doesn't have to be. The ‪@EdelbrockUSA‬ Pro-Flo 4 is designed to make the transition as simple and hassle-free as possible. With pre-calibrated sensors, a self-tuning system, and an easy-to-use app, this sequential port injection system eliminates the need for a laptop, making it one of the most user-friendly EFI solutions on the market with plug-and-play options for the Gen 3 or 4 LS, Gen 1 or 2 Ford Coyote and Chrysler Gen 3 HEMI V8's.

Use ‘PODCAST75’ for $75 off your first HPA course here: https://hpcdmy.co/hpa-tuned-in

Unlike traditional throttle body injection (TBI) systems that mimic a carb, the Pro-Flo 4 offers true multi-point injection, improving fuel atomization, drivability, and efficiency. Injector and fuel system selection are simplified, with kits available for different power levels, and installation is made easy with a fully terminated wiring harness that requires no crimping or cutting. The distributor-based ignition system means there's no need for an additional crank trigger, further reducing complexity.

The system features closed-loop control that continually learns and adapts while driving, improving fuel mapping in real-time. For those worried about fine-tuning aspects like cold starts and transient enrichment, the Edelbrock E-Tuner App provides intuitive adjustments using familiar carburetor-style terminology. This ensures that even those new to EFI can confidently dial in their setup.

TIME STAMPS:
0:00 - Carb to EFI
0:16 - Mark Honsowetz
0:22 - Edelbrock Pro-Flo 4 EFI
1:09 - Self Tuning
1:38 - Entry Level Tuning Option
2:15 - Simple Installation
2:44 - Injector Selection
3:17 - Fuel System Selection
3:56 - Ignition System Setup
4:40 - Edelbrock E-Tuner App
4:51 - No Crank Trigger
5:20 - Pre-Calibrated Sensors
5:40 - Aftermarket Cams
6:40 - Closed Loop Control
7:10 - Needs Varied Driving To Learn
7:42 - Dyno Tuning
8:30 - Cold Start, Transient Enrichment etc
9:41 - Tuning Made Fun
10:00 - Edelbrock Pricing
10:27 - Batch vs Sequential Fire
11:10 - Edelbrock
11:21 - BUILD.T

Running IndyCars, engineering championship-winning V8 Supercars… and going carbon zero? This episode of the Tuned In podcast with performance engineer Brad Eyes takes us in some very interesting directions.

👉 Use code ‘FUTURE50’ to get $50 off HPA’s EV Fundamentals Course: https://hpcdmy.co/evb

Brad shares his unique journey into motorsport, beginning with his determination to break into the high-stakes world of IndyCar — despite living on the other side of the planet. He dives into the challenges of performance engineering in a tightly regulated series and explains how teams still find speed in the most unlikely places.

From there, Brad transitions to Australia’s V8 Supercars, where he played a key role in a multi-championship-winning team. With firsthand insight, he breaks down what makes this series one of the most intense and exciting in global motorsport.

Brad’s career then takes a surprising turn as he shifts into the world of sustainable transport. Are EVs actually a con? Is there a future where performance and environmental responsibility can coexist? Brad shares his perspective.

Packed with talk on race car electronics, systems engineering, race strategy, and the future of speed, this episode is a great listen.

Check out Brad’s book here, and follow him here:
LinkedIn: Brad Eyes

👉 Don’t forget, you can use ‘‘FUTURE50’ to get $50 off HPA’s EV Fundamentals Course: https://hpcdmy.co/evb

Timestamps:

0:00 Does Fast Have a Future?
3:58 How did you get interested in cars and motorsport?
5:15 What was your role in Formula SAE?
8:20 How did you get into Indy Car and what was your role?
12:46 What are the parts that you can change in an Indy Car?
14:11 Indy car setup, road course vs oval
18:49 Does simulation react the same in the real world?
21:38 How long did you work in IndyCar, and what did your role progress to?
24:53 Moving to Australia and into V8 SuperCars
32:32 What was your role at DGR Team Penske?
33:54 How do you make race strategy calls?
43:28 What was next after V8 SuperCars?
46:21 What is transport decarbonisation?
49:11 What’s your opinion on electric vs hybrid vs internal combustion vehicles
1:11:34 Where do you want to go from here in your career?

Say goodbye to messy curly cords and more potential failure points.

Steering wheel-mounted controls make it easier to adjust key functions on the fly, but getting those signals from the wheel to the car is not as simple as it sounds. Running multiple wires through a rotating steering column is unreliable, time-consuming, and they can be prone to failure due to the nature of their use. Zestek has developed a CAN-based steering wheel PCB solution (CAN hub) that simplifies installation, reduces wiring complexity, and integrates seamlessly with MoTeC ECUs, dashes, and PDMs.

Use ‘PODCAST75’ for $75 off your first HPA course here: https://hpcdmy.co/hpa-tuned-in

With only four wires required for full functionality (CAN high, CAN low, power, and ground), this system eliminates the need for bulky wiring looms. The pogo pin system built into the quick-release hub provides a clean and hassle-free connection, removing the need for traditional curly cords. A pre-configured DBC file is available for MoTeC users (and we're sure more in the future), while others can configure the CAN signals using a spreadsheet for quick setup.

Each button and switch is fully customizable, including momentary and latching functions, as well as full-spectrum RGB LED feedback. Paddles can be used for more than just shifting, allowing functions like anti-lag, launch control, and nitrous activation. It is also sim racing compatible, making it easy to use the same wheel for both real and virtual driving while you wait out the winter weather.

Car brands are secretly limiting your car’s potential, and it has NOTHING to do with reliability.

Use ‘PODCAST75’ for $75 off your first HPA course here: https://hpcdmy.co/hpa-tuned-in

Getting more power out of a factory car can be surprisingly straightforward with the right software (and sometimes hardware modifications), but what goes into developing a proper tune that exploits more potential without pushing the OEM components past their limits?

At SEMA, HPA had a chat with Arin Anhell from APR, one of the pioneers in the European aftermarket tuning market, to find out how they test and develop tunes, what safety measures they implement, and why modern turbocharged engines leave so much untapped potential from the factory.

Also discussed:

• The limits of factory components
• How APR ensures reliability in their tuning
• Why OEMs leave horsepower on the table
• How direct injection affects tuning potential
• The APR Plus warranty program and what it covers

If you're considering tuning your BMW, Mini, Volkswagen, Audi, Porsche, or other VAG vehicles etc this could be a very helpful insight into some of your options from APR and sister company Dinan Engineering.

TIMESTAMPS:
0:00 - Getting More Power From Your Factory Car
0:07 - Arin Anhell: APR
0:13 - How APR Develops a Tune
0:35 - Finding the Limits
0:50 - Sensors & Data Collection
1:19 - Dyno Testing & Power Increases
1:40 - Why Do Factory Cars Have Headroom?
2:23 - The Audi RS6 & Porsche Power Differences
3:04 - Factory ECU Safety Margins
3:39 - Fuel Quality & OEM Limitations
4:07 - The MK8 GTI & Octane Impact
4:42 - Oil Change Intervals & Reliability
5:50 - Cylinder Pressure & Peak Torque Management
6:36 - Low-Speed Pre-Ignition (LSPI)
7:35 - In-Cylinder Pressure Testing
8:04 - Tuning Safely Without Risk
8:42 - When Factory Hardware Becomes a Limitation
9:26 - Turbo Upgrades & Stage 3 Tuning
9:50 - Direct Injection Fuel System Limits
10:38 - APR Plus Warranty Explained
11:32 - APR Engine Replacements?
12:00 - ‪@APRtube‬
12:08 - BUILD.TUNE.DRIVE

When Joel Vermiglio isn’t working his day job at McLaren Formula 1, he’s in his Garage 68 Motorsport workshop building an old VW Caddy… with a McLaren twin-turbo V8 in the rear tray, a Lamborghini gearbox, and Porsche 911 suspension.

👉 Use 'JOEL100’ to get $100 off HPA’s Tuning Starter Package: https://hpcdmy.co/starterb

Joel never set out to work in Formula 1 — in fact, he didn’t have any plans to get into motorsport at all. That changed in his late teens when he got into cars, went on to study, and eventually found his way into the industry.

In this conversation, Joel shares his unexpected journey to joining one of the world’s top F1 teams — proving that you don’t need a PhD in mechanical engineering to claw your way to the pinnacle of motorsport.

We also dig into the inner workings of a Formula 1 team, getting as much behind-the-scenes insight out of Joel as we can. From design and build to the day-to-day operations and the brutal pace of life in F1, it’s a fascinating look into what really goes on.

Finally, Joel walks us through his VW Caddy project — a Frankenstein build sparked by spotting a perfectly good(ish) McLaren race motor in the scrap bin at work. Now it’s a running, driving weapon with supercar DNA and a whole lot of DIY ingenuity.

Joel’s been using our courses to learn parts of the build process that he had little experience in, so this chat also offers an interesting look at how what HPA teaches gets applied in the real world.

Follow Joel here :
IG: @garage68motorsport
YT: Garage 68 Motorsport
WWW: mclaren.com/racing/

👉 Don’t forget, you can use ‘JOEL100’ to get $100 off HPA’s Tuning Starter Package: https://hpcdmy.co/starterb

Timestamps:

0:00 The TRUTH About Life in Formula 1.
3:42 What was your passion growing up?
5:34 How and when did cars come on the scene?
9:23 How did a passion for electronics and cars lead to a career in motorsport
14:49 A career in motorsport can be a hard nut to crack. Just how challenging is it
23:36 Landing a job with McLaren GT
28:34 What’s involved in turning a supercar into a competitive GT race car?
33:29 What’s involved in being a systems engineer for McLaren F1?
43:30 What is a Cirrus tester and why do you use it?
44:59 Component reliability and lifespan in F1.
52:20 Crimping vs Soldering?
56:40 How has your role at McLaren F1 changed over the 9 years you’ve been with them?
1:01:25 Balancing F1 and family life. 
1:10:54 What are your thoughts on where F1 is going?
1:16:34 McLaren’s development path in 2024.
1:19:57 Is Red Bull going to be lost without Adrian Newey?
1:22:54 Can you tell us why you’re an HPA member?
1:26:05 What is this project car you’re building?
1:34:52 Final three questions.

Is it time to ditch your factory ECU?

HP Tuners is known for reflashing factory ECUs, but now they’re flipping the script with their Core Standalone ECU, a complete engine management system that offers boost control, traction control, nitrous control and more right out of the box.

Use ‘PODCAST75’ for $75 off your first HPA course here: https://hpcdmy.co/hpa-tuned-in

We stand up (not much seating at SEMA!) with Justin Burt from HP Tuners to break down who this ECU is for, when you should ditch a stock ECU, and what makes CORE different from the competition. Whether you’re pushing 1500hp on a factory ECU or building a dedicated motorsport machine, this discussion covers CAN bus customization, pricing, and potential future support for DI engines.

Building on from the VCM Suite reflash tuning interface, VCM LIVE software ensures a familiar interface for HP Tuners users tuned to the needs of a standalone ECU tuner, while 12 base maps, sample data logs, and beginner-to-advanced tuning modes make it accessible for both new and experienced tuners to learn and grow with.

With Gen 3/4 LS support out of the gate and Gen 3 Hemi & Coyote in development, this is more than just an LS swap ECU. In time and with the backing of a large company like HPT, is the CORE ECU potentially going to become the most versatile standalone ECU yet?

S15 suspension in a 240Z—good idea or nightmare?

Joel Dimmack’s 1971 Datsun 240Z is no ordinary drift car. Running a VR38DETT swap with Garrett GTX3071R mirrored turbos and making 600-700hp, this 1100kg wet monster blends old-school styling with modern competition-ready tech. But is an S15 suspension transplant really the best setup for drifting?

Use ‘PODCAST75’ for $75 off your first HPA course here: https://hpcdmy.co/hpa-tuned-in

We dive deep into the Parts Shop MAX kit, chassis stiffening by Pace Innovations, and the MoTeC M150 ECU tuned by Nick Ashvin at NA Motorsport to see what it takes to make this build work. Plus, we break down the Albins 6-speed sequential gearbox, R32 GTR diff & axles, and the challenges of running an S-chassis suspension on a shorter wheelbase.

Braking is handled by R33 GTST calipers with Project Mu pads and rotors, along with a twin-caliper rear handbrake setup—a must for a competition drift car.

This is one of the wildest Z builds around, and it has presented Joel with some lessons and aspects he would do differently the second time around, but that is precisely what a build like this is all about and how ideas are built into skills.

The performance EV landscape is changing rapidly, and public opinion on electric vehicles also seems to be on the move. How much faster can they go? What are their limitations? Are they even still relevant?

A lot has changed since we first had this week’s guest, Sasha Anis of Mountain Pass Performance, on the podcast back in 2022. This conversation gets us right up to date on where the industry sits now and what it’s going to look like in the very near future.

Use ‘ONPOINT50’ to get $50 off HPA’s EV Fundamentals Course: https://hpcdmy.co/evb

Sasha has a foot in both the EV and ICE worlds, driving an extremely quick hybrid 350Z race car as well as owning and operating both Mountain Pass Performance and On Point Dyno, so he’s the perfect person to get down into the weeds on the latest automotive tech without much of a bias one way or the other.

In this conversation, we jump straight into just how much things have changed since Sasha was on the podcast only a couple of years ago, discussing the good and the bad consequences of this rapid evolution. We also talk about where it’s all heading next. Is hybrid the way forward? And what about hydrogen? And how much better can EVs actually get?

The chat then turns towards the technical side as Sasha talks us through the basics of an EV system, covering all the major components and their purposes.

We also discuss why it’s so hard to extract extra power out of an EV system and how an amateur enthusiast should go about carrying out an EV swap if they want to actually get a good result.

Follow Sasha here:
IG: @mountainpassperformance
FB: Mountain Pass Performance
YT: Mountain Pass Performance
WWW: https://www.mountainpassperformance.com, https://www.onpointdyno.com

Don’t forget, you can use ‘ONPOINT50’ to get $50 off HPA’s EV Fundamentals Course: https://hpcdmy.co/evb

Timestamps:

0:00 Performance EVs — Do They Have a Future?
4:06 Who are you and where are you from?
5:26 Hybrid 350z
8:15 What has been the advances in electric vehicles in the last 2 years?
16:04 How do you see the resale value of older EV models being affected as tech improves rapidly?
22:24 Pros and cons Hybrid vs Full EV?
26:44 What are your thoughts on alternative fuels for internal combustion engines?
31:40 Where are the limitations of EV performance?
36:46 HPA EV course overview
41:47 Why can’t I make more power? And why does it overheat?
53:59 How to maintain battery life?
56:05 Motors and inverters: how do they work?
1:00:20 What does the BMS do?
1:02:52 How concerned should we be about EVs catching on fire?
1:08:13 Final elements that the HPA EV course covers
1:08:56 What’s involved in an EV swap?
1:22:44 Traction control in an EV vehicle?
1:26:42 Can the average home enthusiast perform an EV conversion?
1:31:00 Final 3 questions

Why don't OEMs tune for the maximum reliable performance and what's all the fuss about over emissions compliance in the United States 'street legal' modified car scene?

Use ‘PODCAST75’ for $75 off your first HPA course here: https://hpcdmy.co/hpa-tuned-in

Emissions compliance might not be the most exciting topic, but if you're tuning a street car, ignoring it could land you in serious trouble. We're joined by Chris Mountain from ‪@cobbtuning‬ to break down how emissions regulations have changed, what CARB (The California Air Resources Board) EO (Executive Order) certification really means, and how you can still make large power gains while staying '50-state' legal within the regulations the EPA (Environmental Protection Agency) has developed and enforces (like it or not).

Covered during this SEMA show interview is why OEMs tune for lambda instead of maximum performance, how hardware mods like intercoolers and turbo upgrades affect emissions, and the rigorous (and expensive) testing companies like COBB are now going through to ensure compliance. Plus, find out how you can achieve 20-30% power gains without risking fines or legal headaches.

If you're modifying a street car in the USA and need to keep it legal, this is a must-watch.

2000HP, twin turbos, and a manual transmission – is this the ultimate fun off-roader?

A 2000hp twin-turbo Lamborghini V10 in a street-legal off-road monster? That’s exactly what ‪@MorganClarkeDesign1‬ aka MCD1 built with this prototype Range Rover Velar Dakar-inspired hyper off-roader.

Use ‘PODCAST75’ for $75 off your first HPA course here: https://hpcdmy.co/hpa-tuned-in

Designed as a luxury play car rather than a full race build, this machine blends extreme off-road capability with high-end comfort. Featuring a pressurized cabin, air conditioning, full Range Rover infotainment, and an Albins 5-speed synchromesh manual gearbox, it delivers an unmatched high-performance driving experience—whether blasting through dunes or cruising on the street.

Morgan explains the design process, balancing form and function, and why CAD modelling vs. hands-on fabrication played a unique role in the build. With carbon fibre body panels, fully billet CNC suspension, and a fully custom chassis, every inch of this machine has been engineered for both durability and aesthetics.

With just 7 units being produced, this million-dollar build is set to redefine the limits of off-road luxury performance.

What’s the deal with diesel tuning? Is it really that different? Yes… But also no.

This week Matt Smith of Just Autos joins us to discuss all things diesel tuning — operating principles, combustion temperature, reflash options, and a whole lot more.

Use JUST50 to get $50 off HPA’s Diesel Tuning Starter Package: https://hpcdmy.co/dieselstarterb

Just Autos, based out of Queensland, Australia, specialises in diesel performance tuning — but perhaps not the platforms you’re more familiar with.

Matt has gone down the Japanese diesel path — specifically Toyota’s Hilux, Prado, and Landcruiser platforms. These workhorses are common on Aussie roads, and Matt is at the very forefront of developing their stout Toyota diesel motors to get the absolute best performance from them. 

In this conversation, Matt tells us how he got into the business, and how it’s changed and improved to become the very professional outfit it is today.

We then jump into the real meat and potatoes of this episode — a very deep dive into the world of diesel engines and tuning.

Matt takes the time to really go through how a diesel engine operates and how that differs from a petrol engine, as well as why we need fuel pulses, the general dos and don'ts of diesel tuning, controlling combustion temperatures, and the usefulness (or not) of exhaust gas temperature sensors in a diesel application.

Matt is a great communicator and manages to get tech heavy without leaving the real world, so if you’ve always wanted to better understand diesel technology and how to get the absolute most performance out of it, this episode is a great place to start.

Follow Matt here:
IG: @justautosmechanical
FB: Just Autos
YT: Just Autos Mechanical
TKTK: justautos
WWW: justdieselperfomance.com.au

Don’t forget, you can use JUST50 to get $50 off HPA’s Diesel Tuning Starter Package: https://hpcdmy.co/dieselstarterb

Timestamps:
0:00 The Dos and Don’ts of Diesel Tuning.
3:41 How did you become interested in cars?
10:57 Are we losing key mechanical skills these days?
15:30 What drove you towards the diesel world?
22:48 How does a diesel engine work?
26:15 Diesel engine timing.
29:16 What is pilot injection for in a diesel engine?
32:36 Diesel fuelling and tuning.
40:12 EGTs on a diesel engine.
50:47 Common rail diesel fuel pressure.
54:19 Diesel fuel system failures. Are people pushing them too hard?
1:03:32 How much power can you pull out of a turbo diesel with just a tune?
1:06:03 How do you go about tuning different engines for different applications?
1:09:39 What instrumentation should we add to help monitor our tuned diesel engine?
1:13:33 Diesel engine flow, intercoolers, exhaust etc.
1:14:39 What do we need to know about sizing a turbo for diesel engines?
1:23:05 Why does Toyota not have good support for reflashing?
1:26:23 How are you reverse engineering the factory Denso ECUs?
1:33:19 What do you think about emission devices?
1:38:49 What does Just Autos look like today?
1:46:03 Final three questions.

With 903hp at the wheels, a 9.71-second quarter-mile at 161mph on an unprepped strip, and a fully air-cooled 3.6L turbocharged engine, this Porsche is the definition of a sleeper. In this video, we chat with Arthur to uncover the secrets behind his beastly build.

Use ‘PODCAST75’ for $75 off your first HPA course here: https://hpcdmy.co/hpa-tuned-in

Originally a 230hp Carrera Supersport, Arthur's Porsche now runs 102mm ‪@lnengineeringllc‬ Nikasil barrels, ARGO conrods, a GT3 RS crank, CMW Racing billet heads prepared by ‪@ramsheadservice8427‬ , and a ‪@precisionturbo‬ 8385 pushing 38 PSI. The drivetrain features a 996 Holinger sequential gearbox, billet 32-spline axles, and OEM ‪@Porsche‬ (yup!) CV joints.

Cooling is a unique challenge for this air-cooled monster, with dual oil coolers, fuel cooling strategies, and a switch to a water-to-air intercooler keeping intake temps in check so far without the need to use ice on the strip. Engine management comes from a tried-and-true Autronic ECU, once a leader in the market but now a little long in the tooth but an ‪@AEMpowerTVelectronics‬ dash/logger helps keep it ticking the boxes it needs to for this particular project.

Running on E85, with dual 1000hp ‪@WeldonAutomotive‬ pumps and a ‪@BoschMotorsportAustralia‬ 044 primer, this car shows what’s possible when you push air-cooled tech to its limits and it was awesome to see running in the Flying 500 at the ‪@WorldTimeAttackChallenge‬. A sleeper? Absolutely. And one that’s redefining what these classic Porsches can do at that.

When it comes to performance parts and tools we all want to reach 'straight for the top shelf' and get the best we can. While that isn't always possible for some high price components, when choosing between purple, blue or red Loctite at the same price point, many assume that red must be the strongest and therefore 'best' option.

These people are wrong, and they're possibly also applying the compound incorrectly too!

Use ‘PODCAST75’ for $75 off your first HPA course here: https://hpcdmy.co/hpa-tuned-in

Matthew Eager of Henkel (they own the Loctite brand) helps clear up some of our fair, but incorrect assumptions around red vs blue Loctite and its application, including a common but useless way many of us have been guilty of applying the compound directly to fasteners.

He co-invented one of the top (and earliest) standalone ECU companies on earth, helped develop unique V10 F1 engines, created ignition systems for top-tier motorsports, and finished it all off by producing stock-frame turbocharger upgrades that push the limits of what a factory turbo is capable of.

Mark Boxsell has had a varied and fascinating career in the performance industry, and he’s ready to unpack it all in this episode of Tuned In.

Use GTPUMPS100 to get $100 off HPA’s Tuning Starter Package: https://hpcdmy.co/starterb

Having grown up on a farm in rural Australia that instilled a drive towards resourcefulness and ingenuity, by his early twenties, Mark Boxsell would latch on to the emerging EFI revolution and create his own fuel injection system for his personal Mazda rotary. And that was just the start.  

Mark went on to invent one of the world’s first aftermarket standalone ECUs, which we all know today as Haltech. In this episode, we get straight into the mind-blowing history of how Haltech came about, discussing what was involved in creating it, the incredibly basic tools he had at his disposal to make it happen, and how it actually worked.

We next discuss Mark’s stint developing a unique V10 Formula 1 engine that used rotary valves instead of the traditional poppet valves. Mark goes into detail about how it worked, and why we never saw it on the grid. Then it’s time to talk about ignition systems, which Mark knows a lot about as one of the founders of M&W Ignition — which supplies series like Australia’s top-tier V8 Supercars.

We finish the episode off by moving into Mark’s current venture, GT Pumps. This company specialises in stock-frame turbocharger upgrades, which are currently aimed squarely at the WRX and Evo markets. This gets into some heavy turbo tech, covering the benefits of journal-bearing turbos, stock turbo system capabilities, and more.

If you’re into tuning history and love a dose of nostalgia, this episode with Mark Boxsell is an absolute must-listen. 

Follow Mark here:

IG: @gtpumps
FB: GTpumps
WWW: gtpumps.com.au

Don’t forget, you can use GTPUMPS100 to get $100 off HPA’s Tuning Starter Package: https://hpcdmy.co/starterb

Timestamps:
0:00 The Best Stock Turbo System?
3:43 How did you get into the automotive industry?
7:57 Why did you decide to try and make your own EFI? And how?
12:53 How did that first EFI system perform?
15:13 How did Haltech start?
23:47 How does the HC11 chip compare to modern ECU chips?
26:49 Once you got the ECU working, how did you sell it?
28:52 Why did you decide to use bar graphs for the interface?
33:23 What were the biggest challenges building those first ECUs?
36:28 Marketing first Haltec ECU continued.
43:15 Why are there so many ECU manufacturers from Australia?
46:05 When and how did you leave Haltec?
53:52 Can you explain the different ignition systems?
59:05 M&W ignition system.
1:00:43 Transition from electronics to F1 engine development
1:05:04 Had the rotary valve been tried by other competitors?
1:09:10 Why did this rotary valve never make it to the track?
1:12:25 How did your current business GTpumps come about?
1:13:25 Why focus on a stock frame turbocharger?
1:17:52 Are journal-bearing turbos dead?
1:21:53 Are you looking to produce stock frame turbos for different models?
1:28:12 Final three questions.

If you’ve ever considered an EV conversion but weren’t sure where to start, Ryan from ‪@rywire‬ takes us through the technical details of his incredible Honda Civic EK EV swap, showcasing the integration of Tesla drive units, AEM Electronics VCU, and CSF Radiators for cutting-edge performance and thermal management.

Use ‘PODCAST75’ for $75 off your first HPA course here: https://hpcdmy.co/hpa-tuned-in

This lightweight (EV comparative) build features a $1,000 Tesla front drive unit and a $2,200 rear drive unit, delivering 300hp (each!) with infinite tunability thanks to a Cascadia Motion logic board. Ryan explains why switching from Tesla’s OEM controls to standalone AEM strategies unlocks full control over torque split, regen tuning, and thermal strategies—key elements in achieving high performance and reliability.

Thermal management is a standout feature, utilizing CSF radiators, Freon-based heat exchangers, and a multi-directional cooling system to optimize temperatures for the motor, charger, and 400V battery pack. With insights from OEM designs, Ryan has implemented a system that ensures the batteries stay in their optimal temperature range, boosting efficiency and performance.

Whether you’re interested in OEM vs. aftermarket motors, Bosch brake boosters, or regen tuning with paddle shifters, this build is a masterclass in EV conversions. With a range of up to 400 miles and a weight of approximately 3,400 lbs, this Civic is a lightweight powerhouse that sets a new benchmark for EV swaps.

By the end of this interview you should understand that EV tuning is as risky as tuning your ICE powered projects, and without a high level of care for any project you undertake, you can potentially damage expensive components.

Off-road racing demands suspension that can handle extreme terrain, and Dane from ‪@FOXFACTORY‬ is here to break down the tech behind their world-class dampers. From remote reservoirs to internal and external bypass systems, we explore how Fox designs for the brutal conditions of off-road racing events like the Dakar, Baja 1000 and the Finke Desert Race while keeping the tech scalable for daily drivers.

Use ‘PODCAST75’ for $75 off your first HPA course here: https://hpcdmy.co/hpa-tuned-in

Topics discussed in this SEMA interview also include how heat management, damper size, and semi-active Live Valve systems let vehicles like the Ford Raptor and custom trophy trucks tackle everything from high-speed whoops to precision jumps.

Also included is a quick explanation of how the system uses ECU data, including from aftermarket options, including MoTeC, rather than complicating things with their own separate electronics. This means existing sensor data is also used, including steering and throttle inputs, pitch, yaw, and of course, speed.

Blow off valves and wastegates are fairly simple in their operation, but correctly sizing and fitting them requires a lot of careful consideration if you want to get the most out of your turbocharged engine.

This week, Gregg Jones of TiAL Sport — someone who’s been in the turbocharging game since the mid-eighties — is here to get us up to speed on these simple yet crucial components.

Use TIAL50 to get $50 off HPA’s EFI Fundamentals course: https://hpcdmy.co/efifundb

Gregg started his career in performance cars in the dark ages of turbo technology. It was the mid-eighties, and there weren’t a whole lot of good options around for the aftermarket boost industry — but working with rudimentary laggy turbos and cast-iron wastegates got Gregg thinking that he could create something much better — so he did. TiAL Sport was formed in 1993 and the company quickly blossomed as turbocharged European and Japanese imports began to filter into the mainstream. 

In this conversation, Gregg talks us through those early days, touching on how much room for improvement he saw and how his company was able to step up the game year after year. Gregg discusses how his products are designed, tested, and made — as well as where he sees the industry going in the future.

We then move into the tech-focused section of the episode, where Gregg drops knowledge on all things turbocharging — especially when it comes to speccing, fitting, and getting the most out of blow off valves and external wastegates. There are some real nuggets of gold to be found in this conversation, and anyone who wants to better understand boosted engine applications is going to be better off for listening to it. 

Follow Gregg here:

IG: @tialsport, @xonarotor
FB: TiAL Sport
WWW: tialsport.com, xonarotor.com

Don’t forget, you can use TIAL50 to get $50 off HPA’s EFI Fundamentals course: https://hpcdmy.co/efifundb

Timestamps:
0:00 UNTAPPED Potential? BOVs and Wastegates Decoded
3:14 How did you form an interest in the automotive industry?
8:10 Move to Florida and exposure to turbocharged vehicles
10:24 Early cast iron HKS wastegate
15:34 Why did it take so long for V bands to become the standard?
17:23 What materials did you move to instead of cast iron?
19:12 How have we overcome turbine back pressure?
21:39 What was the design process for these wastegates?
29:21 What are the challenges in designing a wastegate?
34:13 What is the actual benefit to a blow off valve?
40:52 Where’s the best place to put your blowoff valve?
48:13 How do blow off valves work with MAF sensors?
52:32 Do we need to tune the blow off valve for the application?
54:30 Do you have a size guide for blow off valves?
56:17 How do we choose the right wastegate?
1:01:46 What’s the best way to mount a wastegate?
1:04:36 Wastegate springs explained
1:11:56 Is there still room to improve wastegates and blow off valves?
1:16:05 How did you start working with Robert Young and Xona Rota?
1:21:59 What’s next for turbo technology?

Engine swaps on modern vehicles are no easy task, but Stewart from ‪@mesocustoms1696‬ has taken it to the next level with this insane Toyota Tacoma build, featuring a 6.2L Hellcat supercharged HEMI under the hood. In this video, dive into the challenges of integrating late-model electronics and why a turnkey Hellcat system from Cleveland Power and Performance made this swap not only possible but seamless.

Use ‘PODCAST75’ for $75 off your first HPA course here: https://hpcdmy.co/hpa-tuned-in

With 800-900 horsepower on tap, at the SEMA Toyo Tires Treadpass stand Stewart explains why the Hellcat package was chosen over alternatives like the 2JZ, emphasizing the importance of retaining factory ECU integration for plug-and-play simplicity. From the OBD2 compatibility to a functional Hellcat gauge cluster and shifter, the truck now thinks it’s a Dodge—but with the soul of a Toyota.

Beyond the drivetrain, we explore the custom wide-body fibreglass panels, hand-shaped and perfected using 3D scanning and CNC routing. Stewart shares how this approach not only ensures perfect symmetry but also makes future repairs and reproduction straightforward with reusable moulds.

Whether you’re into engine swaps, custom bodywork, or the cutting-edge tech that bridges OEM and aftermarket, this Tacoma build is packed with ideas and inspiration.

Rock crawling isn’t just about getting to the top—it’s about doing it with precision, relative speed, and control. In this video, we catch up with Rodney from Lasernut Racing to break down the incredible engineering behind their single-seat unlimited class buggy, built for the toughest rock crawling challenges.

Use ‘PODCAST75’ for $75 off your first HPA course here: https://hpcdmy.co/hpa-tuned-in

From low weight and tight packaging to innovative techs like portal hubs and rear-steer functionality, this 10mph max speed and 42" BF Goodrich tyre-equipped buggy is a masterclass in off-road engineering. During SEMA, Rodney takes us through the key decisions, such as using a 220hp 2.0L Chevy LNF Ecotec engine for its compact size and power-to-weight ratio and the ingenious placement of the axle-mounted fuel cell for improved safety and balance.

Learn how air lockers and diff locks provide precise control, and how hydraulic winches keep the suspension loaded during vertical climbs. Plus, explore the air suspension system that allows the vehicle to adjust ride height by up to 20 inches on the fly.

On the electronics side, Rodney explains how the Ecumaster PMU16 and ADU5 Dash streamline power distribution and steering control using Blink Marine CAN-based keypads. With clever innovations like adjustable steering indicators and a ride height potentiometer, this buggy has no shortage of cutting-edge solutions.

If you’re into off-road motorsport or just love clever engineering, this deep dive into rock-crawling tech is one you won’t want to miss.

Considering striking out on your own in the performance automotive industry? There’s nothing more satisfying than building your own successful business and being your own boss but… getting it right isn’t easy.

On this episode of Tuned In, we catch up with M26 Engineering’s Matthew Bernasconi, who we first interviewed back in 2022 just as he was leaving stable employment at offroad legends Kibbetech to build his own business.

Use M26ENG50 to get $50 off HPA’s 3D Modeling & CAD for Motorsport course: https://hpcdmy.co/CADb

Matthew has designed and machined parts for the automotive and aerospace industries his entire adult life. If you’ve ever encountered any of his popular social media channels, you’ll probably already have a good understanding of just how talented he is.

This skill was what first had us reaching out to appear on the podcast two years ago, and considering that episode (linked below) ended on a cliffhanger with Matthew just about to strike out on his own, we decided it was time to fire up the mics again and get caught up on how it’s all gone.

This episode is filled with great technical chats about 3D modelling, machining, and component design, all mixed in with quality business discussions that’ll provide a whole lot of inspiration and insight if you’re ever thinking about starting your own company in the performance industry.

Listen to Matthew's first episode here: https://hpcdmy.co/mattb

Follow Matthew here:
IG: @M26Engineering, @matt_eight26
FB: M26 Engineering
WWW: m26engineering.com

Don’t forget, you can use M26ENG50 to get $50 off HPA’s 3D Modeling & CAD for Motorsport course: https://hpcdmy.co/CADb

Time Stamps:
0:00 Using your automotive skills to start your own business.
3:30 Who are you and what do you do?
4:48 What were you doing at Kibbetech?
16:22 What did you learn at Kibbetech that you then applied to your business?
18:27 How did you decide the time was right to start your business?
28:05 Did you start off just doing the design portion and outsourcing the machining?
33:30 Is making one-off CNC parts financially viable?
42:06 Did you have a business plan?
44:37 You’ve been running the business for two years, What’s that journey been like?
54:37 How did you transfer from rapid prototyping to production-style work?
1:00:35 How have you decided what makes and models to support?
1:06:58 How big are these production runs? How many parts are you making at a time?
1:11:18 Why are your parts better/different from the competition?
1:17:10 What’s your opinion on business-to-business or direct-to-consumer sales?1:20:10 How does product development work?
1:25:25 Liability on your products, Is it a concern?
1:28:09 What does M26 look like in 5 years?
1:35:38 Final three questions.

Building high-performance engines just got easier! In this video, we’re with Tom from Hughes Race Built to explore how they’re solving one of the biggest challenges in performance engine building: finding the right tools for the job. Whether you’re tackling a 2JZ, RB26, SR20, 4G63 or even Honda’s K and B series, Tom’s specialized and generic option toolkits are designed by engine builders, for engine builders, to simplify the process and make it more accessible for enthusiasts and pros alike.

Use ‘PODCAST75’ for $75 off your first HPA course here: https://hpcdmy.co/hpa-tuned-in

From engine-specific kits priced around $580 USD ($1,000 NZD) to their innovative hydraulic balancer puller, these tools take the frustration out of tasks like removing front pulleys, compressing valve springs, and installing piston rings. Tom walks us through how these purpose-built solutions, like their adjustable billet ring compressor, bring the precision of CNC machining to a wide range of bore sizes without the need for multiple tools.

If you’ve ever struggled with the limitations of universal tools or wished for something purpose-made for your favourite JDM engine build, this is the video for you. Check out the solutions that are filling a major gap in the market and making engine building more enjoyable than ever.

Find out more at https://hughesracebuilt.com/

Running a 725hp Texas Speed LS-based build and TREMEC Magnum transmission, Cam Cocalis has followed on from his LS3 V8 Toyota 86 build with a full chromoly tube frame BMW E30 Vert project and pushed himself to dive into some new build aspects, a C6 Corvette suspension swap in particular, as he continues to learn the ins and outs of fabrication and custom car building.

Use ‘PODCAST75’ for $75 off your first HPA course here: https://hpcdmy.co/hpa-tuned-in

At the ‪@toyotires‬ booth during ‪@semashow‬ Cam gives us some insight into his welding progression and working process without the use of CAD, with that being a skill he wishes to learn during future projects. The CSF triple pass radiator is rear mounted to aid with weight distribution, and interestingly, this model of E30 came with rear ballast from the BMW factory. The Radium Engineering fuel system behind the Ford 8.8 rear diff also helps to get weight over the rear and a 48/52 split.

The Redux Racing ITB-equipped 7L LS-based engine is controlled by a suite of Haltech electronics, and a Live To Offend kit is fitted to the E30 care of SOS Customs handiwork. We didn't get a rundown on the full brake package, but a Wilwood pedal box is equipped which will serve Cam well if he decides to hit the track for some time attack racing in the future.

*** We’ll be taking a break over the Christmas/New Year period and will be back in action mid-January.

That means that although there won’t be any new episodes for a few weeks, we’ll be taking another look at some of our favourite conversations from 2024.  ***

If you’ve spent any time on YouTube, you’re probably already aware of this episode’s guest and the various projects his channel is involved in — most famously “Project Binky”, a classic Mini running a Toyota Celica GT-Four engine and AWD driveline.

Richard Brunning from Bad Obsession Motorsport joins us to down a few cups of tea, talk motorsport, and run through the ins and outs of neverending project cars, the business of operating a popular automotive YouTube channel, and much more.

Use “BAD100” to get $100 OFF our HPA Motorsport Fabrication Package:
https://hpcdmy.co/fabpackageb

Richard, like many guests of this podcast, has his father to blame for his motorsport obsession. Some of his earliest memories involve hanging out in old sheds while his Dad restored vintage vehicles, tickling up RC cars to get the edge in racing, and days spent on the couch watching Formula 1.

This early focus on all things automotive drove Richard towards a life that revolved around motorsport, first starting out in kart racing, before moving on to Caterhams, formula cars, and even some Formula Mazda racing in the States. In this episode, Richard spends time talking us through these different forms of motorsport, and discusses how each type of vehicle could be set up, tweaked, and modified within the rules in order to gain more speed.

Eventually, Richard’s good friend and eventual partner in crime, Nik Blackhurst, enticed Richard back to the UK to help him go rallying, and it was at this point, way back in 1992, that Bad Obsession Motorsport began.

Fast forward a good few years, and Richard and Nick were fed up with the car modification TV shows like Pimp My Ride, Monster Garage, and their contemporaries that were on offer at the time — none of them actually showed why and how any of the work was done. This got the pair thinking that they might be able to do better, and with that goal in mind, the Bad Obsession Motorsport YouTube channel was founded.

It took a couple of years, but Richard and Nick’s channel began picking up steam, not in small part thanks to “Project Binky”, a Toyota Celica GT-4 powered and driven classic Mini. Richard dives deep into this build, answering our burning questions — chiefly ‘Why’? But also “What’s taking so long”?

This in-depth discussion around the challenges of fitting so much engine and driveline into such a small package is a great look into what it takes to complete a complicated project to a high standard. Lastly, we also spare some time time to touch on the joys of motorsport wiring, ultra-budget racing in the City Car Cup, and making a living out of building cars on YouTube.

Follow Bad Obsession Motorsport here:
IG: @badobsessionmsp
FB: Bad Obsession Motorsport
YT: Bad Obsession Motorsport
WWW: badobsessionmotorsport.co.uk

Don’t forget, you can use “BAD100” to get $100 OFF our HPA Motorsport Fabrication Package: https://hpcdmy.co/fabpackageb