Originally Posted by 808muscle
No m90 is making 9-10 psi......I wish. 5 psi is normal. Depending on your other mods you should be putting down around 375 ish rwhp if stock. Adding a cai, longtubes, smaller pulley and cams will improve it. All of those of course would need a new tune.
My bad lol.. I guess I was thinking of another roots or whipple style blower
I didn't know the m90 was that tame.. i've seen signatures around these parts with m90 making 450whp.. i'm guessing they upgraded the pulley
If 5 psi m90 makes around 360whp then i should be putting down closer to 400whp.. the paxton is the size of a big diesel pick up truck turbo. My boost guage will only see 6psi at WOT, but not sure if it's been de-tuned, or if a 10 lb pulley = always 10 lbs. I have the stock 10 or 12 lb pulley (450whp). /hijack