Topic: Fuel for a stock engine

[crew chief]

How high of octane can you run in a stock engine without damaging it or fouling plugs? I hear some folks are running as high as 103 but I thought that high of octane was only for high compression engines.

[BIG AL 202]

Run regular 87 oct, anymore is a complete waste of money. Octane is for high compression or lots of spark advance. You will loose power with high oct numbers. Use search to get real details on why.

[George Herrin]

I am running 87 in my fully built motors.

[BIG AL 202]

SEE waste of money for race fuel on a stock engine! Save your money for other better parts!

[THawley08]

50/50 mix if you like the smell though.

[cycloneracer]

Lower compression requires less octane. Lower octane fuel burns quicker. So it will actually make more power in a low compression engine.

[Wheelhorseracer]

If you like smell you can also add the top lube that alcohol engines have to use.. it can smell like bananas, cherry, etc... people think it's neat when they come to your pit and it smells like fruit..

Scented Top Lube

[crew chief]

Nothing like the smell of bananas in the pit. Where do you get the stuff?

[George Herrin]

Jegs or click on link above

[Wheelhorseracer]

The pits smelled like cherries last weekend from all the Alcohol Outlaws running..