usmc1812

i have a 2012 5.0 and i put a roush supercharger on it. I took it to the track and my best time was 12.9. could it be my tires Black Machined 2010 Style GT500 Wheel Pirelli Tire Kit 19x8.5? http://www.americanmuscle.com/machin...elli-stan.html i ran on street tires. I was thinking about getting a 82 mm pulley,vmptune,jlt cai intake and drag radials what should i be running with that set up? I just hope nothing is wrong with my supercharger.

alan0614

Welcome to the forum, there wil be someone that can answer your question. But I would imagine it is too much power for your tire setup. Manual or auto?

Sleeper_GT

I have an 82mm pulley on mine (Brenspeed Roush 650R SC Kit). I have a JLT CAI but I'm waiting for my tune from Lund before I do the install. I have not been to the strip yet, but I also agree that you don't have enough meat in the back. Drag radials of course will hook-up much better, but I'll bet if you go to at least a 9.5 or 10 inch on the rear you will be much better off. I have 9.5 all around with Nitto extreme performance 255/45/18. I'm getting ready to go up in the back: Nitto extreme performance 285/40/18.

scott302

Welcome!

usmc1812

thx its a auto lol im gonna order the 82mm pulley,jlt cai and vmp tune on Monday im hoping to be in the 10s. is that wishful thinking with that set up? lol

Timspony

Welcome to MF! ...the 12.9 is all about tires!!! What was the MPH??

usmc1812

thx..the mph was around 112. im pretty sure its just the tires. i just ordered all that stuff. i spoke to vmp on the phone. im hoping for 10 sec lol. i ordered NITTO Extreme Performance NT555R Drag Radial - 305/40-18
NITTO Extreme Performance NT555 Tire - 255/45-18
Black FR500 Wheel - 18x9
Black Deep Dish FR500 Wheel - 18x10
82 MM
JLT carbon fiber cai.
vmp tune
90mm idler


i think that should put me in the 10.5-11. is this wishful thinking? lol.

Soldier GT

welcome... I wouldn't say wishful, I would say hopeful, lol.. What #'s are you putting down??

Sleeper_GT

You'll have to let us know what happens.
I know I can't for my Lund tune to come in. Me and the JLT CAI are just sitting here waiting.

usmc1812

im getting a dyno done next week ill post the results. justin at vmp said i should be getting 590-620 rwhp when its done.