Quote:
Originally Posted by James10694
Now that were on the topic of wastegates.. I'm still having overboosting/boost creep issues. I spoke with my tuner and he sent me an updated map. Fixed the problem for a day and then started overboosting the next. I know it's not a cold weather issue because its been happening all year.
I've seen alot of other platforms having boost creep issues with the external tial wastegates. I could be going down the wrong path here but has anyone swapped to a different wastegate completely and has anyone else had this issue? I spoke to solidus about this and he said his wastegate spring pressure was not rated for what tial claimed when tested. Even if that's the case. Shouldn't the tuning keep the boost pressure from going over? I'm not the most knowledgeable when it comes to turbochargers so I'd appreciate any help or advice
I'm having a vacuum pressure test done just to rule out any type of vacuum leak.
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I have not heard of any customers having issues with any boost creep.
What springs are in the gates, and what is the actual boost being seen? Also, which boost controller, and where is the boost reference for the wastegates (bottom) and boost controller pressure reference plumbed to?
If the tuner "fixed it" and it worked for a day, it sounds like a boost controller issue.
Actual boost creep due to poor exhaust/kit design would occur when you are trying to run low power/boost, not with higher boost. This is because at low power/boost, more exhaust gas needs to go through the wastegates, to bypass the turbine, and keep the boost low.