How much boost stock super charger

[04.5cummins]

Hi all-

Please advise what a safe boost level is for a stock supercharger, 2010. Had my car on dyno and it made 10 lbs boost, is that the norm with a 2.65 pulley?

i thank you in advance,
Gary

 

[07 Black Beauty]

Stock upper is a 3.0 and 9 lbs is stock boost, a 2.65 should give you an extra 2-3 psi.

 

[einehund]

I've got a 2.6 upper and 10% lower on my 2010 with the Lund tune. At the altitude I'm at I see about 11.5 PSI on the inaccurate boost gauge on the dash. No issues at all on 91 octane.

 

[04.5cummins]

thx gents
einehund,
Please advise if has dyno'd your car yet. If yes, what's the power output? I've been thinking about adding a 10% lower as well

 

[einehund]

I have not had it dyno'd yet... that's on my list of stuff to do this summer.

 

[CodyK7]

I had a 2.5 before my tvs swap and would see 12 on the stick gauge. Now it just maxes out the stock gauge.

 

[dr.atsal]

I think it is 10 lbs is fine.

I have a VMP TVS with a 2.4 on it and Im making ~18ish.