Riptide

Is high octane fuel a requirement for a S/C? Do people run 91 pump gas with these things?

Allstar

who cares.. do it. u live once lol

Allstar

i use 93 pump gas.. (im not s/c)

loots06

First and foremost thanks for your feedback. I'll be contacting Jason at VMP tuning and going from there. Unfortunately, I dont have the canned tune for the kit. I'll plan on staying near or at 10psi to be on the safe side until I could have the car dyno tuned.

Riptide

Lots of areas don't have that option. I know that the higher octane the better with FI and I'm curious to see how many people are running 91 with a supercharger and what the effect has been.

onederful100

on the whipple instructions it says use 91 or higher octane, mine is tuned for 92 bc thats what we have around here
i have 3 tunes, 1 @ 420 hp, 1 @ 460 hp, and a race tune i havent dyno'd yet. oh i forgot i just changed pulleys so i gotta dyno again, so idk what the numbers are now. lol. there are many factors that shorten the life of your engine, hp and psi are 2 factors to consider, especially if your block and internals are stock.

Allstar

i very rarely see 91,92 octane around here in my area.. 93 i have seen at every gas station ive ever been too (here in NY.. on the island anyway)

AmericanSpeed

beed around 498 whp 478 wtq @ 10.2 psi for about a month and a half, no probs yet! VMP email tune should be pretty good and safe. When justin dyno tuned mine, he started out with his email tune and tweaked it from there.

MustangGT0405

Americanspeed - Just noticed you track time in your sig. 117mph is pretty good but I would have thought at 500rwhp you would be around 120mph.

I plan on hitting the track in december.

TJ

I agree his MPH should be a lot higher (117mph) imo with kind of power should be a least around 121-122mph.