Is there a 93 octane tune?

[rnoswal]

u7191
v.8r09
2005 Pontiac GTO

I have put the 91 octane tune in it, but have made some adjustments because of using 93 octane. Is there a tune for 93 octane fuel?

Just one more question, can I adjust the ltft for different rpms? Like leaner for cruising and not just WOT? If I really get on the car hard, I notice my fuel mileage rises a little bit each time during a long cruise. If I just cruise it just sits, or maybe creeps up until it settles. I don't get any pinging under hard accel but I still have a black exhuast pipe. No real black smoke when driving, but I do get a nice little cloud of grey when I nail it through the gears.

I guess I am not making myself extremely clear, but I have adjusted timing for higher octane and have leaned out theltft a bit more than the -2 and 0 numbers mostly listed in here and still can't get a grey exhaust pipe. Gibson mufflers, X-pipe and tune are only mods so far.

Thanks
Russ

[06MonteSS]

if you have an 05 gto... then the predator should have a 93 tune already on it...

you should have Diablo Tune (which is for 93 octane)

and you should also have a 91 Octane Tune....