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Base boost only, help. Posted by MarkG [Email] ![]() ![]() ![]() |
I have an 87spg, with 24lb injectors a modified apcbox, 2.5fpr aluminum pipping and the wider core intercooler, a stage 3 A.I.D. from spg9 plus I have taken the cutoff switch out of the loop.
For some reason, as of a couple days a go I have been only getting base boost. I have checked all vacumme lines under the hood & dash, all the intercooler piping and rubber connections I even replaced the bypass valve.Have also checked all rubber around the turbo.
Could the idle switch,dwell or maybe the wastegate play a factor?
The sound I am hearing when I reach base boost is a wierd sorta whistle/woosh, sorta like huge vacumme leak sound. Like one you'd hear if one of the intercooler pipes came disconnected.
Before this I was getting anywhere between 18-21lbs of boost, depending on
the temp and load.
Any oppionions thoughts and IDeas would be greatly appreciated.
posted by 172.132.91...
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