madchiller
Senior Member
- First Name
- Chad
- Joined
- Apr 8, 2018
- Threads
- 14
- Messages
- 923
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- 1,007
- Location
- DFW, TX
- Vehicle(s)
- 2018 Civic Si
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- #1
Full bolt-on with PRL 2860gen [build journal] tuned by DRob back in July 2020 without a single problem until now or really ever since I bought the car new in April 2018.
Currently have an issue where I'm below the boost target, by a lot. So 4 things came to mind right away piping loose, BPV, EWG, or turbo itself. One of the four is probably not working properly and hopefully not a combo. I check the piping and everything seems solid as day 1. I checked the BPV lines to the manifold and those are fine also.
So with the basics checked off I sent a few datalogs over to DRob to see if he would kindly narrow it down as I know enough to get me in trouble. He has stated that indeed I am "way way way way" under boost target. He mentioned the bypass valve being possibly stuck open or leaking. Summit Racing had another Turbosmart BPV in-stock and it came the next day. I replaced it with the new unit and... no dice, same issue. I questioned the EWG numbers (remember I have no clue) and he stated the EWG numbers look fine.
So now I'm thinking worst case scenario... something wrong with the turbo. I will probably be taking off the downpipe to check turbine wheel this weekend if my local shop has any openings. The current tune calls for 24psi and was wondering if anyone else cares to dive into the datalog and see if maybe they can find a magic bullet.
Datalog 1
Datalog 2
I'm really hoping for a miracle here I know but worth a shot and not sure what else I can do in the meantime.
Currently have an issue where I'm below the boost target, by a lot. So 4 things came to mind right away piping loose, BPV, EWG, or turbo itself. One of the four is probably not working properly and hopefully not a combo. I check the piping and everything seems solid as day 1. I checked the BPV lines to the manifold and those are fine also.
So with the basics checked off I sent a few datalogs over to DRob to see if he would kindly narrow it down as I know enough to get me in trouble. He has stated that indeed I am "way way way way" under boost target. He mentioned the bypass valve being possibly stuck open or leaking. Summit Racing had another Turbosmart BPV in-stock and it came the next day. I replaced it with the new unit and... no dice, same issue. I questioned the EWG numbers (remember I have no clue) and he stated the EWG numbers look fine.
So now I'm thinking worst case scenario... something wrong with the turbo. I will probably be taking off the downpipe to check turbine wheel this weekend if my local shop has any openings. The current tune calls for 24psi and was wondering if anyone else cares to dive into the datalog and see if maybe they can find a magic bullet.
Datalog 1
Datalog 2
I'm really hoping for a miracle here I know but worth a shot and not sure what else I can do in the meantime.
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