Different boost psi in different gears?

For the RWD SR20DET cars! Sponsored by Wiring Specialties.
User avatar
onecrazyfoo4u
Posts: 963
Joined: Fri Jun 23, 2006 6:03 pm
Car: 03 Type S

Post

I don't know how this can happen, but it just started to on me about a week ago. I have a 95 with a redtop in it. I took all the pipes off and cleaned all the sludge off of them the other day (intake pipe, all turbo pipes, etc.) I sprayed alot of carb cleaner in all the pipes, and a bit in the turbo compressor itself. That couldn't have hurt anything could it? There was just alot of sludge, and I wanted to clean the blades good.

I have a cheapo ebay mbc inline with the wastegate to hotpipe vaccuum source. Had it set at 10 lbs, and it worked great until I cleaned all the up on my car. Now in first it hits 10psi, 2nd it will only hit 7psi, and all other gears it hits about 9psi. What in the world could be causing this? Any inpute is appreciated! Thanks!


idahotuner
Posts: 10583
Joined: Thu Jun 28, 2007 7:11 am
Car: 2012 Dodge Ram 2500 6.7 Cummins
93 Nissan Sileighty
93 Honda Civic hatch
2011 Polaris Ranger
Contact:

Post

did you check all of your intercooler piping make sure there isnt a leak. make sure your boost conrollr vaccum lines are on tight and in the right places. could be your manual boost controller. close it all the way to see if it boosts normal. just some things i would do and check


Return to “SR20DET Forum (rear-drive)”