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Methanol burnout car

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Im dealing with a methanol burnout car.

V8 n/a,

the issue is overheating from a 2min burnout run, does anyone have any experience with how rich you can get away with to help keep them cool? I was thinking around the .65-.60 lamba

The problem may be that you just don't have enough cooling of the coolant and, maybe, oil - while methanol burn "cooler", it's still darned hot and so there is still a LOT of heat energy being put into the engine, especially over 2 minutes. Worse, because the vehicle is barely moving there has to be plenty of airflow through the coolers, too, which isn't just down to big fans but careful use of ducting and/or shrouds to maximise heat rejection.

As for the lambda, though, you can run very rich, with some going as far as 0.50 - you may find this of interest https://www.enginelabs.com/engine-tech/by-the-numbers-tuning-with-air-fuel-ratio-and-lambda/

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