Icculus88

My track has race fuel, and i have a race tune on my sct. Does anyone run race fuel? Ive heard it really doesnt work with our compression ratio.

PLstang

I run 104 at the track but I have a custom dyno tune for it. I don't think the SCT "race tune" requires race gas (higher octane).

zkiller

I run 100 octane race fuel at all times.
I have 11PSI of boost though....

modaddict

Not all fuels are created equal. Make damn sure you are using an unleaded race fuel and also if you have cats and all your 02 sensors, then 104 is about the highest you want to mess with.

Many canned 'race' tunes are tuned for 100 octane.

zkiller

That is good advice, I ran 105 leaded once or twice and it killed my rear O2 sensors!

Icculus88

thanks guys, my tune is a race fuel tune, im pretty sure. its from brenspeed and i told them i had acess to race fuell, but they told me not to use it, but gave me the tune for it anyways. i th ink it might be 105, and all the parts i have are in my sig, so idk if im ready for it.

zkiller

is it unleaded race fuel?
Otherwise forget it.

As far as your mods - I dont think UD pullies justify running racing fuel.
Stick with a 93 tune. Brent just adds a lot of timing advance on his race fuel tunes.

modaddict

I am almost positive 105 is leaded fuel - DON'T USE IT.

Dex

Torco is where its at