Well octane boosters usually have something like tolulene, methyl-tertiary-butyl-ether or MTBE, and similar substances. This area, like practically every effing thing on the planet relating to anything and everything, is not a free deal. There is a tradeoff for everything.

I do not have a good chem book handy, however, generally, the higher the resistance to pre-ignition/detonation a fuel has, the lower the energy output given per unit of fuel burned.

So: higher octane=lower energy output (read less heat generated by burning it)=less expansion of the air-fuel mixture as a result of burning=less force pushing on the piston=less power at the wheels.

Why would you use higher octane then?

If you have a compression ratio in the engine that can squeeze the air-fuel mixture enough to cause the mixture to self-ignite (detonate/preignite) then added octane will benefit, as the extra power generated by the additional compression will be greater than the power loss due to the higher octane fuel being burned.

Mike

 

if i have a TRD s/c and use premium should i use octane booster wit it in a race?

 

I want to know about octane booster and the supercharger too.

 

holy thread bump batman!

 

nothing wrong with that!!

 

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