Thread: fuel additive for sbc....

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Originally Posted by rspears

Back in the '60's the "trick" was a bag of moth balls (napthalene) in a tank of gas to turn it into "rocket fuel". That didn't work, either.

In the mid to late 60's, some enterprising street racers discovered the wonders of nitromethane!!!! The "trick" was adding it at less then 7% as anything much over that had a tendency to take the tops right off the pistons!!!!

The only ways I've discovered to keep fuel temp down in the summer heat is with a cool can (a bit impractical on the street, though) and in more recent times, a good pressure regulator with a return loop in it to keep the fuel from sitting in the line and cooking!

Toulene and Xylene can be used to boost octane. You can find numerous places on the web that discuss using it. This is one of them:

Toluene to raise octane points? - ThumperTalk

If you want fuel to be cooler, you could always run a cool can like some drag racers do. The only problem is that you will constantly have to add ice.