Uploaded October 2025 | Updated September 2026, 2 days ago

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Information on what actually happens inside a nitromethane fueled engine is hard to find and sometimes even harder to understand, but we'll take a crack at it anyway
Here we talk about the monopropellant qualities of the fuel, it's load sensitive nature and how the modern fueler uses the full length of the power stroke, including the blowdown cycle to make the kind of power they do today.
Also, how rod ratio dictates piston deceleration rate at the bottom of the stroke and ultimately dictates the camshaft profile and volume of fuel needed to not only make power but also maintain a liquid thermal barrier to keep the engine from torching itself.
#racing #diy #mechanic #tuning
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