If you are running 20psi. You throw in higher octane (IE: 100, 118, etc...) but don't turn the boost up. Will the car have any increased performance? I am under the impression that it won't do anything for the car.

 

if you have no detination then no.....

the higher the octane the slower the burn rate and the less btu's per gram

 

If you have retard youre timing to avoid detonations and turn it up widh racefuel you gonna gain HP.

 

So if you're not advancing timing or adding boost... no hp gains? I thought so. Thank you

 

It will make it safer though.

 

the higher octane allows you to run more timing which equals more power. but if it isnt tuned for it, it wont really make a difference

 

You also have to be careful with some of the higher octane stuff. Some race fuels are leaded which will screw up the O2 sensors.