Regular Gas?

Originally Posted by ChrisSlicks Yes, you ignite the fuel before TDC. It takes time for the spark to ignite the fuel and complete the burn, so with a piston traveling

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Regular Gas?

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06-04-2009, 03:04 PM

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Quote:

Originally Posted by ChrisSlicks

Yes, you ignite the fuel before TDC. It takes time for the spark to ignite the fuel and complete the burn, so with a piston traveling at 150mph you must account for this delay and fire early. Obviously the goal is as you described, to have maximum gas expansion right after TDC, but to get there you have to start before.

Which is why Premium fuel has a slower burn rate. Allows for more timing advance..

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