E90Post
 


TNT Racewerks
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Disappointing & Weird Dyno sheet. Help! Change my Procede?



Reply
 
Thread Tools Search this Thread
      08-14-2009, 02:34 PM   #23
Sniz
Lieutenant General
 
Sniz's Avatar
 
Drives: e92 335 - gone // e36 M3 turbo
Join Date: Mar 2007
Location: Ellicott City, MD

Posts: 10,561
iTrader: (1)

I dont see where you think changing tunes will give you better results. You even have verified proof that it won't.

Learn how to drive your car better and rerun in some better conditions.

I pulled a 1.8x 60 ft time and multiple 1.9x 60 ft times in a MT coupe w stock RFT's. It can be done, just learn how to drive your car.
__________________
Sniz is offline  
0
Reply With Quote
      08-14-2009, 02:49 PM   #24
kenneth
Major General
 
kenneth's Avatar
 
Drives: 335i Sedan
Join Date: Mar 2007
Location: Montreal

Posts: 8,596
iTrader: (13)

Raffy, based on the V3/JB3 run, the tunes look to be very similar.

1) Your reaction time was almost .3 seconds slower
2) AT will walk MT 95% of the time
3) XI > I specially on runflats

In the end, the XI was some 0.4 seconds faster. Why would that even be a surprise to you?

Having said that, even if you were slower off the line and losing time shifting, you had pretty much similar/better trap speed, that I find very revealing.

BTW, are you going to Tremblant next week with BMW QC Club?


Note: I am no drag expert.
__________________
SB, Terra, 6MT. Only a few mods here and there.....nothing extreme!
kenneth is offline   Canada
0
Reply With Quote
      08-14-2009, 03:08 PM   #25
CONSTRUCTauto.com
Major
 
CONSTRUCTauto.com's Avatar
 
Drives: e90 335i - Retired, e36 M3
Join Date: Mar 2009
Location: San Diego

Posts: 1,436
iTrader: (13)

AT XI vs MT I? For a drag race you have all the disadvantages possible. Except for your tune
CONSTRUCTauto.com is offline  
0
Reply With Quote
      08-14-2009, 03:57 PM   #26
Nick@aep
Team Zissou
 
Drives: Past: E92 335i 6mt, 996 GT2
Join Date: Jan 2008
Location: Orange County, CA

Posts: 1,424
iTrader: (6)

Send a message via AIM to Nick@aep
You need GIAC.
__________________
Formerly Known As: Nick@AEPerformance

Nick@aep is offline   United_States
0
Reply With Quote
      08-14-2009, 05:30 PM   #27
Mike@N54Tuning.com
BimmerPost Supporting Vendor

 
Drives: 07335i
Join Date: Dec 2008
Location: Earth

Posts: 14,346
iTrader: (86)

Quote:
Originally Posted by shiv@vishnu View Post
Just work on that launch and shifting and you can win with no other changes. Might want to update to a new map/firmware though. There have been a lot of changes since Feb. The new maps are unquestionably more powerful.

Shiv
Thoughts on why he lost 3mph / 30whp between runs?

Mike
Mike@N54Tuning.com is offline   Canada
0
Reply With Quote
      08-14-2009, 06:16 PM   #28
shiv@vishnu
Tuner
 
shiv@vishnu's Avatar
 
Drives: X1, 335i
Join Date: Sep 2006
Location: SF Bay, CA

Posts: 17,611
iTrader: (0)

Quote:
Originally Posted by Mike@N54Tuning.com View Post
Thoughts on why he lost 3mph / 30whp between runs?

Mike
Same reason he was cutting 2.2-2.3 60' times.

Shiv
shiv@vishnu is offline   United_States
0
Reply With Quote
      08-14-2009, 06:20 PM   #29
Mike@N54Tuning.com
BimmerPost Supporting Vendor

 
Drives: 07335i
Join Date: Dec 2008
Location: Earth

Posts: 14,346
iTrader: (86)

Quote:
Originally Posted by shiv@vishnu View Post
Same reason he was cutting 2.2-2.3 60' times.

Shiv
It seems reasonable to me that without traction you're not going to get a good ET. I'm not a drag racer (prefer the road course), but shouldn't MPH stay around the same regardless of the 60' time? 103mph is stock like...

Mike
Mike@N54Tuning.com is offline   Canada
0
Reply With Quote
      08-14-2009, 06:29 PM   #30
shiv@vishnu
Tuner
 
shiv@vishnu's Avatar
 
Drives: X1, 335i
Join Date: Sep 2006
Location: SF Bay, CA

Posts: 17,611
iTrader: (0)

Quote:
Originally Posted by Mike@N54Tuning.com View Post
It seems reasonable to me that without traction you're not going to get a good ET. I'm not a drag racer (prefer the road course), but shouldn't MPH stay around the same regardless of the 60' time? 103mph is stock like...

Mike
Trap speed is dependent of shifting speed and shifting RPM. So 6MT don't have it so easy. A single mis-shift can kill both ET and trap. It's interesting that the v3 car trapped higher than the jb3 despite old map, 6mt and traction disadvantage.

Shiv
shiv@vishnu is offline   United_States
0
Reply With Quote
      08-15-2009, 08:19 PM   #31
Mike@N54Tuning.com
BimmerPost Supporting Vendor

 
Drives: 07335i
Join Date: Dec 2008
Location: Earth

Posts: 14,346
iTrader: (86)

Quote:
Originally Posted by shiv@vishnu View Post
Trap speed is dependent of shifting speed and shifting RPM. So 6MT don't have it so easy. A single mis-shift can kill both ET and trap. It's interesting that the v3 car trapped higher than the jb3 despite old map, 6mt and traction disadvantage.

Shiv
Shiv,

I wasn't trying to draw a comparison to the JB3 car. The time slip summarized that quite well at the bottom. I was asking your thoughts on why the V3 car was running high 13s @ 103mph during some of the runs...

Mike
Mike@N54Tuning.com is offline   Canada
0
Reply With Quote
      08-16-2009, 05:17 PM   #32
Rafstar
Captain
 
Drives: e92 335i
Join Date: Apr 2008
Location: MTL

Posts: 676
iTrader: (14)

Quote:
Originally Posted by Mike@N54Tuning.com View Post
Shiv,

I wasn't trying to draw a comparison to the JB3 car. The time slip summarized that quite well at the bottom. I was asking your thoughts on why the V3 car was running high 13s @ 103mph during some of the runs...

Mike
x2
__________________
2011 335xi Msport Lemans Blue/Black
iforged Essens l Pilot Super Sport l Kw V1 l Arkym lip l Procede v5 l Ar DP l ETS IC l ER CP l BMW Performance Exhaust

Rafstar is offline  
0
Reply With Quote
      08-16-2009, 05:41 PM   #33
MFKN3
Lieutenant Colonel
 
MFKN3's Avatar
 
Drives: 4.5L stroker s/c E92 M3
Join Date: Nov 2008
Location: Australia

Posts: 1,956
iTrader: (2)

I would want to drag in nothing but 6MT RWD! Where's the skill otherwise

My guess would be if you were both stock he would still have you. You need to work on your launches and 60' times then it looks like you will have him.
MFKN3 is offline   Australia
0
Reply With Quote
      08-17-2009, 01:41 AM   #34
Sniz
Lieutenant General
 
Sniz's Avatar
 
Drives: e92 335 - gone // e36 M3 turbo
Join Date: Mar 2007
Location: Ellicott City, MD

Posts: 10,561
iTrader: (1)

Quote:
Originally Posted by Mike@N54Tuning.com View Post
Shiv,

I wasn't trying to draw a comparison to the JB3 car. The time slip summarized that quite well at the bottom. I was asking your thoughts on why the V3 car was running high 13s @ 103mph during some of the runs...

Mike
your incredible sometimes. shiv actually answered your question perfectly.

DRIVER ERROR

Quote:
Originally Posted by Rafstar View Post
x2
see above
__________________
Sniz is offline  
0
Reply With Quote
      08-17-2009, 12:54 PM   #35
marcvtec
Lieutenant Colonel
 
Drives: 335i
Join Date: Oct 2006
Location: toronto

Posts: 1,785
iTrader: (0)

IC heat soak as well maybe ?
__________________
COBB Powered, Spec2+, Wavetrac, DCI, Forge DV's, AR catless DP's, AA FMIC, M3 links & Sways, 19' BBS LM's wrapped in PSS, Zimmerman cross drilled rotors, hawk carbon pads, M3 Spoiler, AC roof Spoiler, Aero Lip, Vorsteiner Diffuser, m3 sides, Tinted, And One Happy BMW Driver.
marcvtec is offline  
0
Reply With Quote
      08-17-2009, 04:05 PM   #36
Sniz
Lieutenant General
 
Sniz's Avatar
 
Drives: e92 335 - gone // e36 M3 turbo
Join Date: Mar 2007
Location: Ellicott City, MD

Posts: 10,561
iTrader: (1)

Quote:
Originally Posted by marcvtec View Post
IC heat soak as well maybe ?
certainly could be
__________________
Sniz is offline  
0
Reply With Quote
      08-17-2009, 05:25 PM   #37
Sal@AUTOcouture
 
Sal@AUTOcouture's Avatar
 
Drives: Techno Violet ESS M3
Join Date: Feb 2007
Location: NJ

Posts: 9,492
iTrader: (29)

Send a message via AIM to Sal@AUTOcouture
all in the launch man
Sal@AUTOcouture is offline  
0
Reply With Quote
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 03:48 PM.




e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST