Boost Trouble

devsdad01 · 10-02-2011, 05:00 AM

I recently replaced the head gasket on my 1990 Turbo Coupe and took it out for a test spin today. It runs and idles smooth, but when the turbo spools up towards 4 psi it feels as though it looses massive amounts of power and it pulses very rapidly almost like it is missing. I set the time so I know that couldn't be a factor. The car ran fine before the head gasket blew and was boosting a solid 8 to 10 psi. Any ideas on what I may need to check or what could possibly be causing this problem?

Any information would be greatly appreciated as I am stumped!

10-02-2011, 05:00 AM	#1
devsdad01 Stock Join Date: Jul 2010 Location: Il, USA Posts: 6	Boost Trouble I recently replaced the head gasket on my 1990 Turbo Coupe and took it out for a test spin today. It runs and idles smooth, but when the turbo spools up towards 4 psi it feels as though it looses massive amounts of power and it pulses very rapidly almost like it is missing. I set the time so I know that couldn't be a factor. The car ran fine before the head gasket blew and was boosting a solid 8 to 10 psi. Any ideas on what I may need to check or what could possibly be causing this problem? Any information would be greatly appreciated as I am stumped!