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      12-04-2012, 06:14 PM   #1
e87fan89
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Drives: 2013 135i M sport
Join Date: Dec 2010
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Bad Jb4 dyno results but car seems fine? Please someone help!

I dont have direct access to a windows laptop to do a log. I may be able to get my hands on one this weekend but me and all my friends have macs. Im going to post my dyno it shows that my stock car (with downpipes) dyno's better than with my jb4 in map 2. However while driving I feel a good power difference throughout the RPM band and the car feels really good. Also all the JB steering wheel features work perfect. The car has was dyno'd multiple times in 4th gear no kickdown button was pressed. This is also the second time bringing it to a dyno with similar results. I have no clue what is going on. It seems like on the road my car is fine but it refuses to dyno.

ALSO: on the dyno the car refuses to go above 6-7 PSI but on the road my boost gauge shows 15-16PSI. Any reason for this?

Any help would be so greatly appreciated!
Thank you in advance guys!
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