hey al or anyone else

im going to the drags tomorrow for the first time
i have dragged rwd cars before but not awd i have been praticing the awd lauch with the laucnch control but gonna need a little more pratcie before tomorrow


well question is i want to run 100 octane since i have **** CA 91 octane

i was wondering how much i should put in to run safe and how much boost i can run with 100 octane
i currently have

3" TBE catless
GSC 272/264 cams
Hallman PRo MBC 21-22 psi
k&n Drop-in
Walboro fuel pump
NGK BPR7ES plugs
Custom Road Tune Dynoflash

ej

 

depending on the year of car, your turbo will only hold about 20-22 psi on a 03-04 and 23-24 on a o5. so with 100+ octane id spike it up to 25-26 and hold it up as high as you can. this is me, to each there own, i spike 25-26 and hold about 23-24 to 6k and it drops to about 20-21 at redline. with al's tune you should be way safe at wot for 100+ oct. good luck, and post back with some times

 

ooops. my bad, i see now you have on 05. boost it up!

 

hey
thanks for your information

i do have an 05
and most likely boost 25-26 spike

im hoping 12s
hehehe

ej

 

With the cams, tbe and 25-26 spike you could be knockin on the door of 11's. Do you have a stock clutch? Head studs would definitely provide an extra safety measure also. How long have others ran 25-26 psi spike on stock head studs/gasket with success?

 

Agreed 100%

 

so all
what do you think is it safe to run some 100 octane?

and how much of it?

and what should i set boost to
and should i have my BOV 100% recirc?

thanks al and everyone

ej

 

Um, interesting, tomorrow is Wednesday, so I'm gonna take a guess that the track that you are heading to is LACR??? Am I right? I just hope you understand that LACR is an extremly slow track, elevation, head winds, and traction all suck. Honestly you will most likely not get out of the 13s there. On saturday California Speedway (Fontana) will be having street legal drags, so if your down, I would suggest to go there instead (it's only open once a month) because it is a much faster track and there will be other EVO owners there that can give you pointers.

 

no
im going to sacramento raceway

so i dont know much about the track if its good or not good at all
ill take my chances

 

Oh ok, disregard my last post then, Sac Raceway is similiar to Cal Speedway, not the fastest, but not the slowest, so IMO that = good track.

 

but yeah still
al if your reading
what should i do...
how much 100 octane should i put
and i should run 100%recirc bov

thanks
al

ej

 

on race gas?, i do everytime i hit the track. ive also got arp headstuds now though.

 

having your bov recirc. helps keep the "lag" down during fast shifts. some will disagree, but hey, its the internet, the 100 oct. gas should be fine for mods.

 

how much race gas do you run ?
because im on 91 octane custom tune
w/o studs

 

Sac raceway is a pretty beat up track and you will probably only get two or three runs in, I personaly wouldnt waste race gas for that night, and there will be a lot of junk out there. I would recommend going on a friday night during test and tune you will get more runs in but it cost 45 dollars. I had problems with tracktion there and had trouble even finding out what I ran because the numbers were messed up and the slips were every where.