How much boost on TVS with 82mm pulley

[avatardt]

I have a VMP TVS kit with the throttle body and JLT intake. I have the 82mm pulley on it now and just got it back together(Sucks to not have warm weather to run it in). I did a 5th gear hit at about 60mph, and it was pushing 13 pounds. Seems a little high to me, was just wondering what others are seeing with the 82mm pulley and maybe the 85mm also?

 

[grnenvy]

The JLT is pushing it up.

 

[ArtVandalay16]

Which TB?
That's a little high, but psi has many variables.
I see ~10.5-11 avg top side on 82 w/ JLT.

 

[mebcop]

I see 9-10psi with my 82 w/jlt. Vmp tune.

 

[by9468840]

Boost depends on a ton of variables. I'm seeing just about 10-10.5 with a 75mm using airbox. I know most make about 10-11 with JLT/82mm and another member makes 15psi with 75mm/JLT.

Did you Dyno the car? Post your results if possible with afr and timing.
What does Justin say?

 

[bmyles]

Mine is 8-9 on the 85mm, but yeAh 13 is high for a 82mm

 

[burke985]

I was at 9 with the stock airbox so I would think the JLT would only be worth another pound

 

[mebcop]

Depends a lot on the valve timing in the tune.

 

[mechanicboy]

My psi is up too, it's the cold weather.

 

[prn1972]

Its normal, my 82mm showed 13-14psi with JLT & stock exhaust

 

[mebcop]

Ya, stock exhaust = restriction after the blower = more boost