Tc76mps
Teching In
Joined: Nov 2005
Posts: 33
Likes: 0
Originally Posted by DrTurbo
Block the gate and see what happens with boost. Just monitor the boost pressure and let off when boost goes beyond the dreaded 9psi. That will rule out the exhaust side. 
11psi spring is in there, WG doesn't even crack open which has me at my wits end.
Turn the BC to full open and still 9psi.
It was the same with the two stage turbosmart BC I had on the car, hence the reason I switched to a cheaper "just to try it out" simple hallman BC.
Turn the BC to full open and still 9psi.
It was the same with the two stage turbosmart BC I had on the car, hence the reason I switched to a cheaper "just to try it out" simple hallman BC.
Teching In
Joined: Nov 2005
Posts: 33
Likes: 0
Originally Posted by frcefed98
11psi spring is in there, WG doesn't even crack open which has me at my wits end.
Turn the BC to full open and still 9psi.
It was the same with the two stage turbosmart BC I had on the car, hence the reason I switched to a cheaper "just to try it out" simple hallman BC.
Turn the BC to full open and still 9psi.
It was the same with the two stage turbosmart BC I had on the car, hence the reason I switched to a cheaper "just to try it out" simple hallman BC.
Its why i'm pulling my hair out on this. Should be simple as all hell and we cant find the issue at all. I run the WG vented to atmosphere so you hear it when it cracks open even just a tad. This turbo is dead quiet when it spools tho?? Even at 9 pounds you can't hear it whine. The GT42 was real loud when spooling. The MPT70 was audible as well....but this one is quiet.
When we get it all back into the car tomorrow we will run it open DP to see whats up.
Then i'll figure out how to block off the WG if that doesn't turn up anything.
When we get it all back into the car tomorrow we will run it open DP to see whats up.
Then i'll figure out how to block off the WG if that doesn't turn up anything.
Teching In
Joined: Nov 2005
Posts: 33
Likes: 0
Originally Posted by frcefed98
Its why i'm pulling my hair out on this. Should be simple as all hell and we cant find the issue at all. I run the WG vented to atmosphere so you hear it when it cracks open even just a tad. This turbo is dead quiet when it spools tho?? Even at 9 pounds you can't hear it whine. The GT42 was real loud when spooling. The MPT70 was audible as well....but this one is quiet.
When we get it all back into the car tomorrow we will run it open DP to see whats up.
Then i'll figure out how to block off the WG if that doesn't turn up anything.
When we get it all back into the car tomorrow we will run it open DP to see whats up.
Then i'll figure out how to block off the WG if that doesn't turn up anything.
no problem with that at all, and we'll tee the boost gauge to the compressor housings boost ref port.
This thread is done, everything was resolved that needed to be resolved. I'll have another post up with testing results when I get it all mounted back up and running.
Thanks all for the great help.
Jeremy
This thread is done, everything was resolved that needed to be resolved. I'll have another post up with testing results when I get it all mounted back up and running.
Thanks all for the great help.
Jeremy
