zapp109

iTrader: (13)

Took my car out today after adjusting my boost controller properly and Im running two 46mm precision wastegates. I had the red "6 psi" spring in it, and would only boost 3 psi with boost controller on the lowest setting. Turned the controller up to 70 and it went up to 10psi.. Is this normal? I just threw some 9 psi springs in it but it got wet out so couldnt test it yet.

3pedals

iTrader: (3)

"6psi springs" will likely 'crack open' slightly before 6psi. so I would say its normal. my 7psi springs in my twin 40 gates crack open at 5.5psi

zapp109

iTrader: (13)

Thanks makes me feel a little better, i checked for leaks everything looks fine so hopefully 9 psi springs will get me closer to my low boost setting i want

skinnies

iTrader: (33)

You running an intercooler? If so is the WG reference before or after it?

zapp109

iTrader: (13)

Yes I'm running a inter cooler and right now my wastegates reference is right off the turbo housing. And obviously boost gauge and controller are off the manifold.

dschmittie1

iTrader: (64)

That could also be part of your issue if the intercooler is a restriction at all. Try referencing from the intake manifold

zapp109

iTrader: (13)

Yea it maybe, wouldn't expect that to be a issue at such low boost. The car already did 902whp at 15 psi that's why I didn't really think of the inter cooler back pressure.

zapp109

iTrader: (13)

Update, I put the 9lb springs in and it was about 7psi on lowest setting so I'm pretty happy with that.