Decided to change inter coolers today to see if that was it. I had already taken the BPV out of the circuit a few days ago. Presure tested the replacment I/C and then the current I/C, both OK. Decided to put a wrench to the exhaust elbow to turbo bolts because I been getting faint exhaust fumes through the duct. 2 were slightly loose and that doesn't affect boost. Since I was under the car anyhow I decide to take the C clip off the WGA rod and chech the WG. Nope it's closed. Go to put the rod back on and it moves, real easy, hmmmmm! Investigation reveals that one of the bolts that attaches the WGA bracket to the compressor housing is loose by 2-3 threads and the other is missing altogether!
This would literally allow the backpressure in the turbine housing to open the WG partially.
Hopefully I'll have it fixed later tonight or tomorrow. Got to take the oil supply line and turbo coolant lines loose to be able to get the missing bolt back in.
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NATO Member. it's not a vice, it's an obsession
Letting the cat out of the bag is a whole lot easier than putting it back in.
88 TC X 2, 86 SVO, mods list at
http://www.turbotbird.com/showroom/pd_88tc.htm
[This message has been edited by Pete D (edited 08-18-2003).]
Just got back from a test drive. All I can say is the car hasn't run this good all season.
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NATO Member. it's not a vice, it's an obsession
Letting the cat out of the bag is a whole lot easier than putting it back in.
88 TC X 2, 86 SVO, mods list at
http://www.turbotbird.com/showroom/pd_88tc.htm
Quote:Originally posted by Pete D:
Just got back from a test drive. All I can say is the car hasn't run this good all season.
I think you found your major performance loss. Think about how much pressure that t3 had to put out to reach your max setting. I bet that t3 thought is was set at 26+psi. You were heating the $hit out of that air. How long was that going on? Before Carlisle?
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mods: SDS Digital Fuel Injection, ported & polished big valve head(1.89/1.59), .500 lift roller cam, custom upper and ported lower intakes, TE60 turbo, powerstroke intercooler, 60mm throttle body, 75pph injectors, Walboro 255HP pump, Kirban adj. fuel reg., ATR header, 3" exhaust with Dynomax Ultraflow muffler, MSD 6al, MSD coil, MSD Launch Control, MSD 8.5mm wires, K&N filter, Star stage III clutch, Greddy Profec B boost controller, Weld Draglites with M/T ET Street 26x11.5/15
[This message has been edited by Glenn 88TC (edited 08-18-2003).]
Good to hear she's runnin good again!
Glenn, I don't know how long it was going on, maybe since last year. It's like low 70 maybe mid 60* here now and that turbo just loves cool air. I just can't believe how it wants to go. And I don't have the BPV back in it yet.
Quote:Originally posted by Pete D:
Glenn, I don't know how long it was going on, maybe since last year. It's like low 70 maybe mid 60* here now and that turbo just loves cool air. I just can't believe how it wants to go. And I don't have the BPV back in it yet.
When you turned the boost up on the dyno that probably set the actual boost the t3 saw through the roof.
Take it to the track and see what she does now.
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mods: SDS Digital Fuel Injection, ported & polished big valve head(1.89/1.59), .500 lift roller cam, custom upper and ported lower intakes, TE60 turbo, powerstroke intercooler, 60mm throttle body, 75pph injectors, Walboro 255HP pump, Kirban adj. fuel reg., ATR header, 3" exhaust with Dynomax Ultraflow muffler, MSD 6al, MSD coil, MSD Launch Control, MSD 8.5mm wires, K&N filter, Star stage III clutch, Greddy Profec B boost controller, Weld Draglites with M/T ET Street 26x11.5/15