Think you fully understand the high-performance combustion engine? This tech-heavy episode with Ilmor Engineering’s DeWayne Logan might fill in a few knowledge gaps you never even knew you had.

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DeWayne is a calibration and mechanical development engineer for Ilmor, based out of Michigan in the United States. The company has been in the high-performance engine game for a long time now, having supplied engines for the Formula One, NASCAR, and Indycar series.

In this conversation, DeWayne and Tuned In host Andre Simon wade deep into the weeds of high-end race engine development, touching on many different aspects that go into creating something like Ilmor’s 700+hp, 2.2-litre, twin-turbo Indycar V6. Sure, that power figure’s not anything we haven’t seen before, but keep in mind that these engines need to produce that power reliably for hours on end at wide-open throttle in a race situation, and do it for far longer in testing.  

DeWayne spends time really breaking down some of the key considerations of engine operation and development, like the relationship between compression ratio, fuel octane, and boost pressure, as well as how to go about selecting the correct compression ratio for a given engine.

Knock, detonation, pre-ignition, and super knock are also broken down and explained, allowing us to fully understand exactly what these conditions are and how they affect the operation of our engine and its durability.

There’s a whole lot of high-protein engine development knowledge to chew on in this episode!

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