Racing Fuel

[tonykey1958]

I have a 408 stroker motor don't know what the internals are it ran good and I did a Trans swap while the car was down drain drain the gas and replaced it with 114 octane racing fuel and. Car. Runs bad is it to much octane thanks

 

[CarMichael Angelo]

Potentially. Depends on what you mean by "runs bad" If it's just not running as good performance wise as it did before on lower octane, then yeah,...you could look at that. Higher octane fuels burn slower and cooler than lesser octane does.
If the car is running poorly as in won't idle, coughs, hacks,...then that is a totally different story, and more than likely not necessarily fuel related.
Ask @84Ttop or @srtthis...these guys are racers, they use that $10.00 a gal stuff......they'd know.

Does this car still have it's cats?

 

[jrichker]

Is the car a carb conversion or EFI?

 

[A5literMan]

What fuel were you running before? What timing? More octane means you can usually add more timing. More than likely this is the problem

 

[84Ttop]

Unless the car is more than 13:1 compression or seeing 20+ lbs of boost 114 octane fuel is way off base. Without knowing the specifics and I mean all of them about the combination of parts I wouldn't recommend anything...

FWIW @madmike1157 C16 is $14.50 a gallon now

 

[CarMichael Angelo]

Unless the car is more than 13:1 compression or seeing 20+ lbs of boost 114 octane fuel is way off base. Without knowing the specifics and I mean all of them about the combination of parts I wouldn't recommend anything...

FWIW @madmike1157 C16 is $14.50 a gallon now

You crazy.

Thanks for reminding me why I don't race anymore.

 

[FoxMustangLvr]

I have a 408 stroker motor don't know what the internals are it ran good and I did a Trans swap while the car was down drain drain the gas and replaced it with 114 octane racing fuel and. Car. Runs bad is it to much octane thanks

what led you to believe that it needed race gas? Just because it's a 408 stroker doesn't mean it won't run on pump gas.

 

[srtthis]

You crazy.

Thanks for reminding me why I don't race anymore.

nick cheats... hes on M1

Q16 is 17
C23 is 25 or so

need to know a lot more details before i can start to make suggestions