Pocket

iTrader: (17)

Car just came back from the dyno and the numbers seemed a bit low

Stock LQ4
LS6 cam
M122
2.6" SC pulley
7.8 crank pulley
10 rib drive, no slip

Only 6# of boost? 405/430

If you've got a M122, any brand, what pulley do you have and how much boost did you get from your 6.0?

TX Tahoe Z71

iTrader: (28)

Long tubes or stock manifolds? Custom tune or handheld? What vehicle is this in? 2wd or 4wd, what size wheels and tires? What was the weather outside when you made the pull?

From what you have listed, it sounds low, both power and psi.

rjwz28

I agree, low on both, interested in how this turns out

Gadgetized

iTrader: (9)

That does seem very low. I would think you should be above 10+ with a good set of ported heads, and good flowing exhaust. I wouldn't be surprised if you hit 13.

Are you sure the bypass valve is fully closing? What style supercharger do you have? If it has a shaft, maybe the gears on the back got switched around (not sure about this, just a thought).

Johnmaster

iTrader: (3)

Inertia or Eddy current?

Atomic

iTrader: (42)

Should be right at 16lbs...

kbracing96

iTrader: (26)

Sound like a jack shaft blower with the back pulleys on wrong...

Pocket

iTrader: (17)

Not a jackshaft setup



1.75" LTs into a 4" single exhaust, no restriction there

I was estimating 13-15psi for the build, so when the tuner said all he got was 6, I was surprised. Thanks for the confirm, Ill pressurize the system and hunt for leaks

Gadgetized

iTrader: (9)

I can't see your diaphragm for your bypass valve. It needs to be closed when you are in boost. What did your tuner say about this?

Pocket

iTrader: (17)

Bypass valve works properly. Its located under the inlet. I can manually close it and idle will become a surge

Tuner said power was right in line with the boost level which I agree with, but the boost level for pulley and blower displacement seems extremely low