Quote:
Originally Posted by -Willis-86touge
Yea but what about race gas what's the rate it's injected? I mean if it has a higher octane it should act similar to e85. This just means it burns slower, right so wouldn't it also need more fuel to be injected too. Please for give me! I know jack shit about different types of race gas.
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As kodename was saying, it's more about fuel density than octane. Octane only raises the extreme at which the fuel autoignites.
The fact that you're using something that burns with an entirely different energy output means that you'll be injecting an entirely different volume of it.
If you're going to use race gas, you might as well go to your tuner with a full tank of it and get the most out of your ignition timing that you can. Just remember that your car is going to pull as much timing as needed out of your tune when you go back to pump gas on the same tune, and you're going to notice it.