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BMW 3-Series (E90 E92) Forum
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Boost issue
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11-15-2012, 02:14 PM | #1 |
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Boost issue
I have been FBO for about 14,000 miles now. Car has 103,000 miles.
Recently, my car hasn't felt as quick as it used to be. Wastegate rattle is rediculous and I feel like my turbos just aren't pushing as hard as they used to, I used to hit 16psi easy with JB4, I have been doing WOT runs and my car is only hitting 12-13 psi, this is with little humidity and 63 degree ambient temps, I know it isn't a boost leak as I just fixed one...could my turbos be going out and has anyone else experienced this loss in boost? I do blow some white smoke out of the exhaust every once in a while but other than that and the wastegate rattle, I have no other noises or weird things happening with the turbos as far as I know
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2011 335is "Redrkt" 6 MT
DocRace 6266 Single Turbo - Fuel it stage 3 LPFP - Fuel it PI - spec stage 3+ clutch - mfactory SM flywheel - 100% E85 - VRSF 7.5" intercooler - VRSF charge pipe w/ HKS BOV - JB4 - MHD back end flash 768 whp 695 ft lbs - E85 - 32PSI |
11-15-2012, 04:27 PM | #2 | |
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Quote:
when you are hitting 12/13 psi, what are you targeting, have you logged map1 or 2 just to see if you hit targets?
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11-15-2012, 04:49 PM | #3 |
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I'm map 5 right now, I will put it on map 1 or 2 and see if I hit target boost
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2011 335is "Redrkt" 6 MT
DocRace 6266 Single Turbo - Fuel it stage 3 LPFP - Fuel it PI - spec stage 3+ clutch - mfactory SM flywheel - 100% E85 - VRSF 7.5" intercooler - VRSF charge pipe w/ HKS BOV - JB4 - MHD back end flash 768 whp 695 ft lbs - E85 - 32PSI |
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11-15-2012, 11:18 PM | #4 |
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I had to replace all of my vacuum lines recently because they were all cracked. Started out boost would only hit 16, then 12, then 8 and at WOT it would drop even more to 4. Eventually I lost all boost. Good luck
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11-16-2012, 12:47 PM | #5 |
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How much was it for all the lines
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2011 335is "Redrkt" 6 MT
DocRace 6266 Single Turbo - Fuel it stage 3 LPFP - Fuel it PI - spec stage 3+ clutch - mfactory SM flywheel - 100% E85 - VRSF 7.5" intercooler - VRSF charge pipe w/ HKS BOV - JB4 - MHD back end flash 768 whp 695 ft lbs - E85 - 32PSI |
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