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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > JB4 335i only trapping 84mph in 1/8th



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      06-28-2016, 03:42 PM   #1
MachWon
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JB4 335i only trapping 84mph in 1/8th

Went to the track for the first time ever and my best time was an 8.7 @ 84mph. 2.0 60ft. It was pretty hot at the track, but stock 335i's have ran this time haven't they? The car is an 07 6mt and has the following mods:

JB4 Map 2
BMS pump flash
Straight 93oct
VRSF CP/Tial BOV
BMS intakes
Catless DP's
Fuel it stage 2

Dunno what the problem is. I don't have any recent pump gas logs but I can throw up an E60/map 7 log if that helps.

Edit: no traction issues either. Car barked in first and just went.
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      06-28-2016, 04:00 PM   #2
Ozzie335i
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Lost to a Prius?
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      06-28-2016, 04:02 PM   #3
mojobmw_e90
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Logs?
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      06-28-2016, 06:07 PM   #4
MachWon
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I'll get a log tonight after I leave work since it is on the exact setup as it was at the track.
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      06-28-2016, 08:19 PM   #5
dwspen01
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I just went to an 1/8 mile track last week for the first time and it was 90 degrees. I ran a 7.77 @93.75. Launched from idle and had a 1.95 60 ft time.

2009 Z4 DCT FBO w/MHD E40.
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2009 Z4 DCT - Hexon RR600, MMP Inlets/Outlets, Wagner EVO 2 Comp FMIC, Fuel-It TBI, Fuel-It Stage 2 LPFP, ER CP, Forge DVs, N20 TMAP, BQ Tune 93/E65, BMS DCI, AR Catless DPs, BMS OCC, RB PVC

Last edited by dwspen01; 06-28-2016 at 09:04 PM..
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      06-28-2016, 09:02 PM   #6
B.M.W.
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09 335i FBO MHD E40 tune with Pilot Super Sports
Rear seat delete with a lightweight battery (19lbs)

Ran a 7.36 @95.42 in the 1/8th with a 1.86 60ft time. It was high 91°F but I'm also basically at sea level.
I think I could do better, but I felt it was fairly good.
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      06-28-2016, 09:37 PM   #7
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http://datazap.me/u/machwon/jb4-map-...-25&mark=43-39

Log from tonight. I dunno what the deal is, you guys are running ~10mph faster than me. I know I'll run better on E60, but I doubt it will make up 10mph and nearly a second in the 8th!
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      06-28-2016, 10:13 PM   #8
feuer
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Quote:
Originally Posted by MachWon View Post
http://datazap.me/u/machwon/jb4-map-...-25&mark=43-39

Log from tonight. I dunno what the deal is, you guys are running ~10mph faster than me. I know I'll run better on E60, but I doubt it will make up 10mph and nearly a second in the 8th!
Most likely is due to being MT and your shifting skills. Look into that.
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      06-30-2016, 05:33 PM   #9
bigdnno98
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What is DA at your track/in your runs? My best 1/8mi in this car is 8.4@88 and that was map 5, e30, DCI and FMIC. My best 1/8mi in my last 335i (was an MT) was 7.9@91. It was FBO, meth and e30. It's really hard to compare track times from track to track. You have a dynojet around to hit?
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      06-30-2016, 06:41 PM   #10
MachWon
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No, I need to get on one. I've been meaning to since getting my motor replaced. Maybe I have a small boost leak. These turbos only have 6-7k miles on them, surely they should able to hold target to redline.
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      06-30-2016, 06:45 PM   #11
bigdnno98
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I can't view the csv right now but the graph looks ok. IATs are really high and the car is really rich. Both could be robbing a couple HP
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      06-30-2016, 06:49 PM   #12
Mike@N54Tuning.com
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Quote:
Originally Posted by MachWon View Post
http://datazap.me/u/machwon/jb4-map-...-25&mark=43-39

Log from tonight. I dunno what the deal is, you guys are running ~10mph faster than me. I know I'll run better on E60, but I doubt it will make up 10mph and nearly a second in the 8th!
Your log looks clean but its not a log of a 1/8 mile run. It can be harder to get good traps out of MTs especially a short run like 1/8 mile.

Mike
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      07-01-2016, 09:31 AM   #13
MachWon
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Quote:
Originally Posted by Mike@N54Tuning.com View Post
Your log looks clean but its not a log of a 1/8 mile run. It can be harder to get good traps out of MTs especially a short run like 1/8 mile.

Mike
I thought of logging a 1-3rd pull but figured the log would be useless due to wheelspin. The car feels weird in a 3rd gear pull, almost like power falls off low and picks back up noticeably past 4500RPM. IDK. Maybe I'm crazy.

I know for sure, though, that this car will be the death of me. Haha.
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