GSTwithPSI
Well-known member
Quoting GSX_TC:
Yeah on that Dyno at TX2k it didn't have enough load and wasn't letting the car creep to 16 pounds like it did on the street and D3's Dyno. It only peaked at 10 pounds on that Dyno. I was pissed. And I can't turn the boost up because I'm already out of pump. So I'll be most likely upgrading wastgates and routing the wg dump tube back in the down pipe to help solve the creep issue, then go ahead and do the dual 255's and 2150's.
If boost creep was the issue, routing the dump pipe back into the exhaust would only add more restriction to the system, thereby worsening the condition. And, typically, boost creep causes a higher than desired boost level, not lower. Swapping in a larger wastegate may help, but honestly, I don't think boost creep is your issue. You're damn near running no exhaust at all, so boost creep doesn't really even seem viable. Adding a full exhaust system after the turbo would be the only modification to the exhaust system that would actually help.
I would take a close look at whatever you are using for boost control. Have you considered using your ECMlink setup to control boost? Whatever you do, I agree with Mark. Modifying your dump tube and wastegate seems kinda pointless. You have to be realistic, and know there will be issues with a new tune and setup. Give it some time, and you'll get the kinks worked out.
Yeah on that Dyno at TX2k it didn't have enough load and wasn't letting the car creep to 16 pounds like it did on the street and D3's Dyno. It only peaked at 10 pounds on that Dyno. I was pissed. And I can't turn the boost up because I'm already out of pump. So I'll be most likely upgrading wastgates and routing the wg dump tube back in the down pipe to help solve the creep issue, then go ahead and do the dual 255's and 2150's.
If boost creep was the issue, routing the dump pipe back into the exhaust would only add more restriction to the system, thereby worsening the condition. And, typically, boost creep causes a higher than desired boost level, not lower. Swapping in a larger wastegate may help, but honestly, I don't think boost creep is your issue. You're damn near running no exhaust at all, so boost creep doesn't really even seem viable. Adding a full exhaust system after the turbo would be the only modification to the exhaust system that would actually help.
I would take a close look at whatever you are using for boost control. Have you considered using your ECMlink setup to control boost? Whatever you do, I agree with Mark. Modifying your dump tube and wastegate seems kinda pointless. You have to be realistic, and know there will be issues with a new tune and setup. Give it some time, and you'll get the kinks worked out.