|
|
|
Post Reply |
|
Thread Tools | Search this Thread |
07-29-2011, 02:19 PM | #23 |
Captain
206
Rep 611
Posts |
|
Appreciate
0
|
07-29-2011, 02:23 PM | #24 |
chris
277
Rep 12,144
Posts |
weird that you did all these tests and still cant find the leak.
__________________
Current: 2013 F10 M5 & 2016 Mini JCW 2013 GLK350 (gone), 997.1 GT3RS (gone), 2009 WRX STI (gone), e92 M3 (gone) |
Appreciate
0
|
07-29-2011, 11:29 PM | #25 |
Banned
33
Rep 1,034
Posts |
any update?
|
Appreciate
0
|
07-30-2011, 11:25 AM | #26 |
Brigadier General
249
Rep 3,157
Posts |
Have you checked your mani? Maybe there could be a leak from there? Otherwise there should not have boost problems ! Any charger setup on our cars are mech.
__________________
Past: Gintani stage3 M3, Cayman GTS present: Porsche 993RWB, 964RS America,996 cupcar, 964 turbo 3.6,Macan Turbo,997GT2,930 turbo,i3, MINI JCW |
Appreciate
0
|
07-31-2011, 04:12 AM | #27 |
Major General
423
Rep 5,327
Posts |
any updates on this?? Really interested what the issue was incase i ever experience a similar issue.
__________________
Z4MR VT2 - Clubsport build.
Multi award winning Detailing | Wrap | PPF specialists UK based - www.topwrapz.com |
Appreciate
0
|
07-31-2011, 11:57 AM | #28 |
Major General
141
Rep 5,264
Posts
Drives: 2008 E90M3
Join Date: Jan 2009
Location: Daly City -4- Work///Camarillo is Home
|
i had a similar issue on a turbo car my buddy used to own. Performed smoke test, leakdowns, etc and couldn't find anything. but like someone already suggested, we found it was a vacuum line kink.
Hope you get it all worked out. can't wait to see what the problem was. how frustrating!
__________________
- Jason P
:Have: 08 E90M3, Varis VRS Front Lip, LS3, ESS Supercharger, Arqray Exhaust, Neez Wheels :Want: VRS Carbon GT Wing & Cooling Bonnet, LCI Taillights :Videos: EnvyRidesTV, GPR 1, GPR 2, GPR 3, ///MFEST |
Appreciate
0
|
07-31-2011, 12:01 PM | #29 | |
Major General
423
Rep 5,327
Posts |
Quote:
good look OP and keep us posted.....
__________________
Z4MR VT2 - Clubsport build.
Multi award winning Detailing | Wrap | PPF specialists UK based - www.topwrapz.com |
|
Appreciate
0
|
08-01-2011, 11:34 AM | #30 |
Captain
206
Rep 611
Posts |
got to the dyno and they were having power issues because of crayz rain/wind. power was going in and out. so travis and i pressure tested the car and checked the bypass valve having 1:1 pressure. bypass was OK and the vac to it is good too. we did find a small leak from one of the two Meth fittings under the manifold, slowly letting air out. going to fix that and go back and pressure test again then dyno. leak seems very small but we did not find anything else.... hopefully this is it.
|
Appreciate
0
|
08-01-2011, 12:00 PM | #31 |
Brigadier General
341
Rep 3,574
Posts |
could be a simple ecu problem.
try going back to stock.. then put everything back on step by step.
__________________
2015 Porsche 991.1 GT3 2015 F80 M3 -- Individual; Space Grey |
Appreciate
0
|
08-01-2011, 01:30 PM | #32 |
drop a gear and...
78
Rep 967
Posts |
This is unlikely - But is there any chance that the supercharger pulley is spinning/slipping on the compressor shaft? Because wasn't this changed as part of the 625 upgrade?
What color are your injectors? And also, did you use black RTV to seal the fitting on the very back of the manifold?
__________________
|
Appreciate
0
|
08-01-2011, 03:16 PM | #33 |
BimmerPost Supporting Vendor
1001
Rep 4,619
Posts |
OP,
We have a BMW senior master tech on staff and are certified by ESS for supercharger installation. We will gladly take a look at it for you if you want to take a ride up to us (Philly is about 2 hours away). Give me a call for more details. |
Appreciate
0
|
08-02-2011, 08:54 AM | #34 | |||
Captain
206
Rep 611
Posts |
Quote:
Please tell me more about this --> "did you use black RTV to seal the fitting on the very back of the manifold" what fitting? are you referring to the meth line? If so I did not install the meth - it was done by a shop in Jersey. Quote:
Quote:
going to eliminate the small leak i found from the meth line fitting and pressure test again. hopefully thats it. then off to dyno and hopefuly 650 pkg soon |
|||
Appreciate
0
|
08-02-2011, 09:35 AM | #35 |
M-Flight Member
37
Rep 1,085
Posts |
This may be a dumb question, but did you check your belt? I remember my 03 Cobra losing boost because the belt kept slipping...installed a tensioner and problem solved.
EDIT: Bah, nevermind, just re-read your original post where you already checked this...reading comprehension is obvioulsy not one of my strong points. Good luck with this, I know what a PITA trouble shooting something like this can be. I must have spent about 2 weeks trying to figure out why I wasn't making the right amount of boost when I upgraded my Cobra to a turbo setup...damn frustrating, you just want the damn thing to work.
__________________
2011 Le Mans Blue M3// Black extended Novillo w/ Blue Grey Aluminum trim/DCT/ZTP/ZCW/ZPP/ZCP Premium Sound ///Akrapovic Evolution Exhaust
2015 Audi S4 Prestige, Brilliant Black S-tronic 2012 Le Mans Blue 135i M Pkg DCT |
Appreciate
0
|
08-03-2011, 09:10 AM | #36 |
Captain
49
Rep 605
Posts |
Im sorry to hear about your issues, its gremlins like these that make me shy away from FI anything. hope you can work it out, if you could maybe swap the supercharger itself?
|
Appreciate
0
|
08-03-2011, 11:16 AM | #37 | |
BimmerPost Supporting Vendor
719
Rep 3,735
Posts |
Quote:
One thing I suggest you take a look at, is to remove the charger itself and inspect the compressor and make sure the blades are not damaged and that it isn't bleeding pressure anywhere internally. Sometimes a charger can be damaged, the oil could be coked up inside and making it very difficult for the compressor to rotate. PM me, I will try and help you get through it! -Malek
__________________
BMW PERFORMANCE SPECIALISTS. Race Engines. Suspension. F/I. Brakes. Race Preparation. Factory Service. Alignments.
OFFICIAL PARTNERS: KW. MOTON. Brembo. AP Racing. BBS Motorsport. iND. HRE. Turner Motorsport. VAC. BMW Motorsport. Facebook | Instagram | Yelp! | Flikr Phone: 949-233-0448 | E-Mail: info@mrfengineering.com |
|
Appreciate
0
|
08-07-2011, 10:12 PM | #39 |
Lieutenant
43
Rep 476
Posts |
Any update? Have a dyno yet?
I'm dealing with a pretty similarly mysterious set of underperformance issues with my Z4M's VT2-500 (an unfortunately-popular thread in the Z4 section). |
Appreciate
0
|
08-09-2011, 01:41 PM | #40 |
Captain
206
Rep 611
Posts |
yeah we found several issues. few bolts were missing from runner/stacks - may have been result of powdercoater not torquing them properly. fixed the meth fitting into the manifold which was the only thing showed boost slowly leaking in a pressure test. ran the car on dyno it still made 450 whp. also noticed that the blower is seeping SC oil down the SC bracket. going to take the blower off and send it to ESS.
|
Appreciate
0
|
08-09-2011, 01:50 PM | #41 | |
Major General
141
Rep 5,264
Posts
Drives: 2008 E90M3
Join Date: Jan 2009
Location: Daly City -4- Work///Camarillo is Home
|
Quote:
__________________
- Jason P
:Have: 08 E90M3, Varis VRS Front Lip, LS3, ESS Supercharger, Arqray Exhaust, Neez Wheels :Want: VRS Carbon GT Wing & Cooling Bonnet, LCI Taillights :Videos: EnvyRidesTV, GPR 1, GPR 2, GPR 3, ///MFEST |
|
Appreciate
0
|
08-09-2011, 02:14 PM | #42 |
Captain
206
Rep 611
Posts |
|
Appreciate
0
|
08-09-2011, 02:21 PM | #43 |
Major General
141
Rep 5,264
Posts
Drives: 2008 E90M3
Join Date: Jan 2009
Location: Daly City -4- Work///Camarillo is Home
|
oh damn... for some reason i forgot this was a VT2. i apologize.
__________________
- Jason P
:Have: 08 E90M3, Varis VRS Front Lip, LS3, ESS Supercharger, Arqray Exhaust, Neez Wheels :Want: VRS Carbon GT Wing & Cooling Bonnet, LCI Taillights :Videos: EnvyRidesTV, GPR 1, GPR 2, GPR 3, ///MFEST |
Appreciate
0
|
Post Reply |
Bookmarks |
Thread Tools | Search this Thread |
|
|