MHD stage 1 tune

t2ae · 08-18-2015, 09:38 AM

so about a month ago I flashed the mhd stage 1 tune and have just a couple of questions. one thing I have noticed that I cannot do a burnout now? im a auto 07 335i. before I could just power brake and burn out with no problem, now when I try the wheels will spin for about 2 seconds and the power gets cut. anyone else have this problem? I went to the dragstrip and was going to warm the tires up a little to try and help out with loss of traction but couldn't do it. next question is I would like to know how many people actually hit target boost and how early? seems to be a little laggy and not always hitting target. here is a log to check out from a stop to 3rd pull.
http://datazap.me/u/t2ae/mhd-stage-1?log=0&data=4-24

t2ae · 08-18-2015, 09:44 AM

could it be possible there is a boost leak or solenoid problem?

MHD Tuning · 08-18-2015, 02:22 PM

Looks like boost is a bit lazy, but for proper analysis please start logging in 3rd - 2500 rpm.

DeutschKarDriver · 08-18-2015, 03:04 PM

Had the same problem. The increased boost is pushing past the stock dv's. Replaced charge pipe with Cobb unit and the dv's with a pair of Hyperboost and now it will cook my 275's.

t2ae · 08-18-2015, 05:27 PM

Quote:

Originally Posted by MHD Tuning

Looks like boost is a bit lazy, but for proper analysis please start logging in 3rd - 2500 rpm.

How can I do a log like that if I'm in a auto... Even in sport shifting if you floor it it will drop a gear everytime

kookie · 08-18-2015, 05:49 PM

Don't go beyond the kick down button.

t2ae · 08-18-2015, 07:20 PM

http://datazap.me/u/t2ae/mhd-stage-1...og=0&data=4-24
this was a log I just did in third gear from 2500rpm. what do you guys think

MHD Tuning · 08-19-2015, 09:24 AM

WedgePerformance

t2ae · 08-19-2015, 04:27 PM

Quote:

Originally Posted by DeutschKarDriver

Had the same problem. The increased boost is pushing past the stock dv's. Replaced charge pipe with Cobb unit and the dv's with a pair of Hyperboost and now it will cook my 275's.

will look into this...possible that cause lag as well? I was running the stage 1 w fmic for awhile but started to throw 30fc code.

WedgePerformance · 08-19-2015, 11:40 PM

Quote:

Originally Posted by t2ae

http://datazap.me/u/t2ae/mhd-stage-1...og=0&data=4-24
this was a log I just did in third gear from 2500rpm. what do you guys think

boost leak or bad boost solenoids.

t2ae · 08-20-2015, 07:12 AM

Quote:

Originally Posted by WedgePerformance

boost leak or bad boost solenoids.

thanks for the quick reply guys. I will check for boost leaks asap and check the boost solenoids. I will post my results when I do

AirAndre335i · 08-20-2015, 08:49 AM

Quick replies! Impressive stuff!

t2ae · 08-20-2015, 09:37 AM

whats the best ways to check the boost solenoids?

t2ae · 08-20-2015, 01:54 PM

just verified vacuum at idle is staying at 26 so we are good there

zeeth2800 · 08-20-2015, 03:53 PM

woah that boost curve is all over the place. Did you recently install a FMIC? I know I had a minor boost leak at one of my couplers when I installed mine.

Good luck figuring it out. 13psi seems low as a peak ever for stage 1.

t2ae · 08-20-2015, 04:35 PM

no bone stock besides muffler delete

marcvtec · 08-21-2015, 04:17 PM

You have negative 26 vacuum?
Should be -22/-21

t2ae · 08-22-2015, 08:19 AM

reading in hg

t2ae · 08-22-2015, 08:20 AM

went to the dragstrip last night and ran for the hell of it. its the 1/8th mile I ran 8.6 at 86mph. kept throwing the 30ff code

08-18-2015, 09:38 AM	#1
t2ae Enlisted Member 4 Rep 12 Posts Drives: 07 335i sedan Join Date: Jul 2015 Location: raleigh iTrader: (0)	MHD stage 1 tune so about a month ago I flashed the mhd stage 1 tune and have just a couple of questions. one thing I have noticed that I cannot do a burnout now? im a auto 07 335i. before I could just power brake and burn out with no problem, now when I try the wheels will spin for about 2 seconds and the power gets cut. anyone else have this problem? I went to the dragstrip and was going to warm the tires up a little to try and help out with loss of traction but couldn't do it. next question is I would like to know how many people actually hit target boost and how early? seems to be a little laggy and not always hitting target. here is a log to check out from a stop to 3rd pull. http://datazap.me/u/t2ae/mhd-stage-1?log=0&data=4-24
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08-18-2015, 09:44 AM	#2
t2ae Enlisted Member 4 Rep 12 Posts Drives: 07 335i sedan Join Date: Jul 2015 Location: raleigh iTrader: (0)	could it be possible there is a boost leak or solenoid problem?
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08-18-2015, 02:22 PM	#3
MHD Tuning Banned 1978 Rep 345 Posts Drives: M3F80#M5F90#340iF31#SupraA90 Join Date: Feb 2015 Location: Germany iTrader: (0)	Looks like boost is a bit lazy, but for proper analysis please start logging in 3rd - 2500 rpm.
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08-18-2015, 03:04 PM	#4
DeutschKarDriver Habitual Speeder 0 Rep 10 Posts Drives: 2009 335i Join Date: Nov 2014 Location: Mississippi iTrader: (0)	Had the same problem. The increased boost is pushing past the stock dv's. Replaced charge pipe with Cobb unit and the dv's with a pair of Hyperboost and now it will cook my 275's. __________________ E90 335i Monaco Blue
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08-18-2015, 05:49 PM	#6
kookie Lieutenant 73 Rep 455 Posts Drives: e93 335i Join Date: Mar 2010 Location: Melbourne iTrader: (2)	Don't go beyond the kick down button.
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08-18-2015, 07:20 PM	#7
t2ae Enlisted Member 4 Rep 12 Posts Drives: 07 335i sedan Join Date: Jul 2015 Location: raleigh iTrader: (0)	http://datazap.me/u/t2ae/mhd-stage-1...og=0&data=4-24 this was a log I just did in third gear from 2500rpm. what do you guys think
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08-19-2015, 09:24 AM	#8
MHD Tuning Banned 1978 Rep 345 Posts Drives: M3F80#M5F90#340iF31#SupraA90 Join Date: Feb 2015 Location: Germany iTrader: (0)	WedgePerformance
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08-20-2015, 08:49 AM	#12
AirAndre335i Second Lieutenant 39 Rep 234 Posts Drives: E92 335i Pre Lci Join Date: Apr 2015 Location: Central London iTrader: (0)	Quick replies! Impressive stuff!
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08-20-2015, 09:37 AM	#13
t2ae Enlisted Member 4 Rep 12 Posts Drives: 07 335i sedan Join Date: Jul 2015 Location: raleigh iTrader: (0)	whats the best ways to check the boost solenoids?
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08-20-2015, 01:54 PM	#14
t2ae Enlisted Member 4 Rep 12 Posts Drives: 07 335i sedan Join Date: Jul 2015 Location: raleigh iTrader: (0)	just verified vacuum at idle is staying at 26 so we are good there
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08-20-2015, 03:53 PM	#15
zeeth2800 Private First Class 37 Rep 183 Posts Drives: 08 135i, 89 M3 Join Date: Oct 2013 Location: Corvallis, OR iTrader: (0)	woah that boost curve is all over the place. Did you recently install a FMIC? I know I had a minor boost leak at one of my couplers when I installed mine. Good luck figuring it out. 13psi seems low as a peak ever for stage 1. __________________ 2008 135i SGM 6-Speed l AD Engineering ST 6262BB l MHD Tuned l MAXBoost/N20 Map l GFB electronic boost controller l Spec 2+ l Walbro 450 LPFP l VRSF 7" FMIC l VRSF CP l Tial BOV l BMR 3.5" Exhaust l BMS Catch Can l RB pcv l
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08-20-2015, 04:35 PM	#16
t2ae Enlisted Member 4 Rep 12 Posts Drives: 07 335i sedan Join Date: Jul 2015 Location: raleigh iTrader: (0)	no bone stock besides muffler delete
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08-21-2015, 04:17 PM	#17
marcvtec Banned 408 Rep 2,704 Posts Drives: M5 Join Date: Oct 2006 Location: toronto iTrader: (0)	You have negative 26 vacuum? Should be -22/-21
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08-22-2015, 08:19 AM	#18
t2ae Enlisted Member 4 Rep 12 Posts Drives: 07 335i sedan Join Date: Jul 2015 Location: raleigh iTrader: (0)	reading in hg
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08-22-2015, 08:20 AM	#19
t2ae Enlisted Member 4 Rep 12 Posts Drives: 07 335i sedan Join Date: Jul 2015 Location: raleigh iTrader: (0)	went to the dragstrip last night and ran for the hell of it. its the 1/8th mile I ran 8.6 at 86mph. kept throwing the 30ff code
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