Nissan 370Z Forum - View Single Post - Boost not going up enough when boost controller is turned up

xnick101 · 11-04-2022, 01:22 PM

I am trying to fix an issue on my car, hoping someone on here can help me out.

I have a Boosted performance kit on my car. I have a GReddy profec boost controller and it's hooked up properly. If I do a pull with my boost controller off, my car goes to right around 8 psi of boost with no issues. Which is pretty close as I have 9 psi springs in my wastegates. This is fine. When I turn the controller up the boost does go up but not as much as it should. For instance, if I have the boost controller set to 65%, I only hit 11-11.5 PSI. Which is really low for having the boost controller set so high up. At 65% the car should be seeing like 16 PSI. Can anyone help figure out what is going on here? I've checked all the vacuum lines and it's all good.

11-04-2022, 01:22 PM	#1 (permalink)
xnick101 Base Member Join Date: Aug 2014 Location: Florida Posts: 109 Drives: 2008 6MT G37 Rep Power: 11	Boost not going up enough when boost controller is turned up I am trying to fix an issue on my car, hoping someone on here can help me out. I have a Boosted performance kit on my car. I have a GReddy profec boost controller and it's hooked up properly. If I do a pull with my boost controller off, my car goes to right around 8 psi of boost with no issues. Which is pretty close as I have 9 psi springs in my wastegates. This is fine. When I turn the controller up the boost does go up but not as much as it should. For instance, if I have the boost controller set to 65%, I only hit 11-11.5 PSI. Which is really low for having the boost controller set so high up. At 65% the car should be seeing like 16 PSI. Can anyone help figure out what is going on here? I've checked all the vacuum lines and it's all good. __________________ \|Boosted Performance Turbo G37 Coupe\|