IMCHRGD
Well-Known Member
I hope i can get an answer from Roush about belt slippage,..... how far can i pulley down before i start seeing some slippage. I havent asked them yet , but soon i will.
Is that what you are seeing on a boost gauge in your Mustang?Yes thats correct 12 lbs boost
In my f 150 yes. Havent bought the wife her Mustang yet, im holding off on thatIs that what you are seeing on a boost gauge in your Mustang?
Yeah, hard to imagine 12 psi, considering how conservative Roush is with a warrantied kit.12lbs for me is too much on 93 octane. I would prefer to stay under 10psi, but this is just strictly my opinion.
The stock tuning on an F150 Coyote is different than a Mustang. I wonder if the boost levels are different on F150 kits vs Mustang.In my f 150 yes. Havent bought the wife her Mustang yet, im holding off on that
yes but the pulleys are the same size right?The stock tuning on an F150 Coyote is different than a Mustang. I wonder if the boost levels are different on F150 kits vs Mustang.
Some people r reporting the Phase II or the Roush system in general makes 12lbs of boost, but I’m not so sure this is accurate
It seems some guys who own the setup are seeing 10-11lbs which makes me happy if true, if true
I’m curious as to what owners here in the post have seen at redline on the warranty tune and basic factory exhaust (Cats still in place but maybe a car back)
Yes thats correct 12 lbs boost
Sweitzer, I’m not 100% convinced this is accurate, u truly need some kind of boost box or a vacuum gauge to read boost?
On the dyno, yes im sure it was up thereSo you’ve seen 12lbs of boost at redline
Corys running headers but again he’s revving to 7400 and running a 72mm and seeing 12.5lbs, hell his 75mm made 11.5lbsI see 12.5-12.7psi with a 72mm pulley. 11.2-11.5psi with a 75mm. At 7400.