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+--- Thread: Boost pressure 8.5 PSI, how do I increase? (/showthread.php?tid=4031)
Boost pressure 8.5 PSI, how do I increase? - tazulica - 10-25-2012
My engine is pulled from a '79 300SD. Today I installed a new boost gauge and the maximum pressure read is 8.5 PSI. I removed the ALDA seal and turned the screw 1 1/2 CCW until it stopped (it wouldn't turn more than that).
I drove the car again and the boost is the same. Is there any other way to increase it another 3-4 PSI?
Thanks!
RE: Boost pressure 8.5 PSI, how do I increase? - aaa - 10-25-2012
Pinch the wastegate hose shut as a test for whether the wastegate needs adjusting.
RE: Boost pressure 8.5 PSI, how do I increase? - sassparilla_kid - 10-26-2012
You could try using a manual boost controller like this
http://www.ebay.com/itm/NXS-MANUAL-BOOST-CONTROLLER-100-ROCK-STEADY-NO-SPIKING-/260344245934?pt=Motors_Car_Truck_Parts_Accessories&hash=item3c9db9eeae&vxp=mtr