Loss of power...trying to find boost leak

supra90mkiii

Member
Apr 2, 2005
227
0
16
Racine, WI
This past spring I installed a sp61gtbb and bc 264 cams. After that the car felt great. But now the car will barely spin in 1st gear, and the car overall just feels... weak, completely different. This seemed to be more of a gradual change. I suspected a boost leak, so i made a tester and tried that. I found a very small leak from a coupler and fixed that, but it still doesn't come close to how it was. So I have a couple questions, when you're using the boost leak tester, how long do you leave the air compressor on? I leave it on for maybe 5seconds and then try to listen to where the air is coming out.
I've checked ignition timing, haven't rechecked cam timing yet. I'll probably pull the plugs out sometime this week to see what they look like. Do you guys have any other suggestions?
Also, I'm running maft-pro speed-density.
 

supra90mkiii

Member
Apr 2, 2005
227
0
16
Racine, WI
I'm pretty sure I have it adjusted correctly, just loose enough to get rid of any surge. ...but I'll try again tomorrow, thanks for the suggestion.