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12-08-2015, 12:27 PM
#81
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Join Date: Dec 2015
Posts: 210
Total Cats: -7
Ok ill snap a pic tonight. I had the turbo specd in everything is good on it. I am gonna install the wideband and if everything looks good wire the wastegate shut. If that doesnt work than I am going to remove the sebring timing. But I have a feeling I am running too rich which wouldnt let me build enough heat.
In summation of what I know atm:
Turbo is good
There are no boost leaks from the turbo to the throttle body
The exhaust mani is not cracked
fuel pressure and flow is withing spec
Compression on all cylinders are with in spec.
There are no adj cam gears installed
_____________________________________________
What are the unknowns:TBD
AFR
Timing
If the MSD Sebring is not functioning properly
IAC condition/ routing.
Hope this helps clarify those who do not wanna read all 4 pages
In summation of what I know atm:
Turbo is good
There are no boost leaks from the turbo to the throttle body
The exhaust mani is not cracked
fuel pressure and flow is withing spec
Compression on all cylinders are with in spec.
There are no adj cam gears installed
_____________________________________________
What are the unknowns:TBD
AFR
Timing
If the MSD Sebring is not functioning properly
IAC condition/ routing.
Hope this helps clarify those who do not wanna read all 4 pages
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12-08-2015, 02:57 PM
#82
I think I figured it out but I can't spend anymore time on it. Exhaust mani was not locker down tight and the turbo doesn't seem to be tightened down correctly.
I think this would Def be a culprit that would give me the exact symptoms I have had.
What other mani can I use one this motor with my turbo. I am familiar with Meagan being a half step from generic ebay parts.
I think this would Def be a culprit that would give me the exact symptoms I have had.
What other mani can I use one this motor with my turbo. I am familiar with Meagan being a half step from generic ebay parts.
As stated from others, AFR AFR AFR. Get it working ASAP. For when you do hit boost you're not at 18 AFR attempting allofit
I had the turbo specd in everything is good on it.
What is spec'd?
I am gonna install the wideband and if everything looks good wire the wastegate shut. If that doesnt work than I am going to remove the sebring timing. But I have a feeling I am running too rich which wouldnt let me build enough heat.
You need the MSD timing + stock ecu to retard the timing for when you do hit boost.
In summation of what I know atm:
Turbo is good
Cause spec'd?
There are no boost leaks from the turbo to the throttle body
The exhaust mani is not cracked
Yet
fuel pressure and flow is withing spec
Compression on all cylinders are with in spec.
There are no adj cam gears installed
_____________________________________________
What are the unknowns:TBD
AFR
Timing
I'd imagine it's all stock timing with the stock ecu + msd timing retard
If the MSD Sebring is not functioning properly
IAC condition/ routing.
Hope this helps clarify those who do not wanna read all 4 pages
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12-08-2015, 03:25 PM
#83
Junior Member
Thread Starter
Join Date: Dec 2015
Posts: 210
Total Cats: -7
Have you gone back over the exhaust and turbo bolts to tighten everything down? Soak all of them in PB Blaster and make everything is gutentight. Leaks before the turbo means it's not passing through the turbo.
After you've confirmed no more exhaust leaks, no holes in manifold. Still can't make boost. I'd free spin the turbo in the morning when the motor is stone cold. Hear grindy or sand grit like noise in the bearings, turbo may be gone. Check shaft play, left right up down select start b a b a, forwards and backwards inside of the housing.
If you suspect the turbo IS shot, double check and make sure that yours can be rebuilt. gpop shop may have a rebuild kit.
This.
As stated from others, AFR AFR AFR. Get it working ASAP. For when you do hit boost you're not at 18 AFR attempting allofit
Page 2
After you've confirmed no more exhaust leaks, no holes in manifold. Still can't make boost. I'd free spin the turbo in the morning when the motor is stone cold. Hear grindy or sand grit like noise in the bearings, turbo may be gone. Check shaft play, left right up down select start b a b a, forwards and backwards inside of the housing.
If you suspect the turbo IS shot, double check and make sure that yours can be rebuilt. gpop shop may have a rebuild kit.
This.
As stated from others, AFR AFR AFR. Get it working ASAP. For when you do hit boost you're not at 18 AFR attempting allofit
Page 2
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12-08-2015, 03:39 PM
#85
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Join Date: Dec 2015
Posts: 210
Total Cats: -7
All be it, it is kinda shitty
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12-08-2015, 03:45 PM
#86
Not sure what you're talking with measurements. That doesn't tell me if it spins 
Included bearings?
I still think you need to hookup some sort of pressure to the wastegate source, also do this for your boost gauge to test it out. Maybe IT craps at 1psi when you're really doing 5.
Wiring the wastegate shut would be on my to do list as mentioned. You'll know very quickly if it's the turbo or the wastegate causing the issue.
Still wondering how you blocked the BOV port. Flange & bolts?
Included bearings?
I still think you need to hookup some sort of pressure to the wastegate source, also do this for your boost gauge to test it out. Maybe IT craps at 1psi when you're really doing 5.
Wiring the wastegate shut would be on my to do list as mentioned. You'll know very quickly if it's the turbo or the wastegate causing the issue.
Still wondering how you blocked the BOV port. Flange & bolts?
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12-08-2015, 03:55 PM
#88
Junior Member
Thread Starter
Join Date: Dec 2015
Posts: 210
Total Cats: -7
Not sure what you're talking with measurements. That doesn't tell me if it spins
Included bearings?
I still think you need to hookup some sort of pressure to the wastegate source, also do this for your boost gauge to test it out. Maybe IT craps at 1psi when you're really doing 5.
Wiring the wastegate shut would be on my to do list as mentioned. You'll know very quickly if it's the turbo or the wastegate causing the issue.
Still wondering how you blocked the BOV port. Flange & bolts?
Included bearings?
I still think you need to hookup some sort of pressure to the wastegate source, also do this for your boost gauge to test it out. Maybe IT craps at 1psi when you're really doing 5.
Wiring the wastegate shut would be on my to do list as mentioned. You'll know very quickly if it's the turbo or the wastegate causing the issue.
Still wondering how you blocked the BOV port. Flange & bolts?
I tested the waste and it starts to move around 9lbs and fully opens around 12lbs
The turbo spins freely and does not rub housing hence the feeler gauge measurements
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12-08-2015, 04:01 PM
#96
SADFab Destructive Testing Engineer
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Join Date: Apr 2014
Location: Beaverton, USA
Posts: 18,642
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There are 4 things that could be wrong.
Exhaust gas is getting around the turbine somehow (wastegate issue)
Turbine isn't spinning the compressor wheel (interference, too much backpressure)
Boost is escaping between the compressor and head (intake leaks)
Compressor isn't producing boost.
Check all those things and you will have your answer.
Exhaust gas is getting around the turbine somehow (wastegate issue)
Turbine isn't spinning the compressor wheel (interference, too much backpressure)
Boost is escaping between the compressor and head (intake leaks)
Compressor isn't producing boost.
Check all those things and you will have your answer.
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12-08-2015, 04:01 PM
#97
SADFab Destructive Testing Engineer
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Take pictures. Of the turbo, the downpipe. etc. Everything.
From one picture it looks like the wastegate could easily be caught on the downpipe flange holding it open, becasue of the shitty wastegate design.
From one picture it looks like the wastegate could easily be caught on the downpipe flange holding it open, becasue of the shitty wastegate design.
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