E90Post
 


Alpine HID
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Correct steps to dyno a 335i steptronic.



Reply
 
Thread Tools Search this Thread
      07-20-2007, 05:36 PM   #1
CaptOz
Captain
 
CaptOz's Avatar
 
Drives: Porsche 911 Carrera S
Join Date: Oct 2006
Location: Sydney, Australia

Posts: 833
iTrader: (0)

Correct steps to dyno a 335i steptronic.

Hi guys. I am having my car dyno’d next week to see what the rear wheels are putting out with the PROcede. After reading some earlier posts, I believe the correct method is the following:
  1. Ensure the DSC is fully off (held for 5 seconds).
  2. Move the auto transmission selector to sport mode.
  3. Accelerate gently using the paddles to reach 4th gear.
  4. Accelerate hard but do not let the accelerator pedal reach as far as the “kickdown” click.
  5. Let the engine rev up to redline.
  6. Drink a glass of champagne to celebrate the fantastic results.

Does this method seem correct to you guys?

Cheers.
CaptOz is offline   Australia
0
Reply With Quote
      07-20-2007, 06:57 PM   #2
Driver72
Brigadier General
 
Drives: 335i - to new owners now.
Join Date: Dec 2006
Location: California

Posts: 4,485
iTrader: (0)

Yup.
Driver72 is offline  
0
Reply With Quote
      07-20-2007, 07:57 PM   #3
Div4our
Lieutenant
 
Div4our's Avatar
 
Drives: with my right foot down.
Join Date: Dec 2006
Location: Scottsdale, Az

Posts: 513
iTrader: (0)

Send a message via AIM to Div4our
exactly correct bro.
make sure you load up the graphs.
__________________
Hunting for an e92.
Div4our is offline   United_States
0
Reply With Quote
      07-20-2007, 08:10 PM   #4
normtrum
Colonel
 
normtrum's Avatar
 
Drives: e90 335i, e46 330i
Join Date: Feb 2007
Location: PNW

Posts: 2,227
iTrader: (1)

Perfect. Just make sure that when you're in 4th gear you start your run at about 2000 rpm's. The tech that did mine a few months ago kept trying to start at about 4000 rpm's. Obviously it kept getting screwed up, until I stepped in and made him do it right (they wouldn't let me do it for insurance reasons).

Edit: I forgot, after you start your run, you don't need to paddle shift, let the car do it.
normtrum is offline  
0
Reply With Quote
      07-20-2007, 08:29 PM   #5
shiv@vishnu
 
shiv@vishnu's Avatar
 
Drives: PROcede v5
Join Date: Sep 2006
Location: SF Bay, CA

Posts: 17,609
iTrader: (0)

Sounds good... Let 'er roll
shiv@vishnu is offline   United_States
0
Reply With Quote
      07-20-2007, 08:48 PM   #6
hl0m4n
Brigadier General
 
hl0m4n's Avatar
 
Drives: BMW
Join Date: Nov 2006
Location: NY

Posts: 4,833
iTrader: (41)

so after reaching redline move shifter back to normal drive and slow down?
hl0m4n is offline   United_States
0
Reply With Quote
      07-20-2007, 08:53 PM   #7
hool97
Private First Class
 
Drives: 335i
Join Date: Apr 2007
Location: SoCal

Posts: 110
iTrader: (0)

Quote:
Originally Posted by hl0m4n View Post
so after reaching redline move shifter back to normal drive and slow down?
Never put on the brakes on a dyno, unless you want to buy a new set of pads.
__________________
Vette C5sc427a4 699rwhp at 11psi(Pending 15psi)
BMW 335I sedan
Mit Lancer
Lex RX300
hool97 is offline  
0
Reply With Quote
      07-20-2007, 09:58 PM   #8
normtrum
Colonel
 
normtrum's Avatar
 
Drives: e90 335i, e46 330i
Join Date: Feb 2007
Location: PNW

Posts: 2,227
iTrader: (1)

Quote:
Originally Posted by hl0m4n View Post
so after reaching redline move shifter back to normal drive and slow down?
Just let the car do the work. Once you hit redline, it will automatically down shift. At that point, just take your foot off the gas pedal and you're done.
normtrum is offline  
0
Reply With Quote
      07-20-2007, 11:00 PM   #9
Insider
Captain
 
Insider's Avatar
 
Drives: 2007 335i
Join Date: Jul 2006
Location: 4,500 feet above sea level

Posts: 710
iTrader: (0)

You need to use the paddles to get the car in manual mode. That way you can give it full throttle at 2,000 RPM in 4th gear without a downshift.
__________________
http://www.insiderpicks.com - The world's best stock picks.
Insider is offline  
0
Reply With Quote
      07-21-2007, 12:10 PM   #10
hl0m4n
Brigadier General
 
hl0m4n's Avatar
 
Drives: BMW
Join Date: Nov 2006
Location: NY

Posts: 4,833
iTrader: (41)

so 2k rpm in 4th gear, redline let go of gas and let car roll to a stop in manal mode as the car will auto downshift? then do next dyno run, etc?
hl0m4n is offline   United_States
0
Reply With Quote
      07-21-2007, 12:55 PM   #11
normtrum
Colonel
 
normtrum's Avatar
 
Drives: e90 335i, e46 330i
Join Date: Feb 2007
Location: PNW

Posts: 2,227
iTrader: (1)

Quote:
Originally Posted by hl0m4n View Post
so 2k rpm in 4th gear, redline let go of gas and let car roll to a stop in manal mode as the car will auto downshift? then do next dyno run, etc?
ya, looks good. Just so you know, I didn't have a clue at first, I had one dyno screw up (I've had 3 so far) so I called shiv, who has litterally done hundreds of these, and got the low down from him.
normtrum is offline  
0
Reply With Quote
      07-21-2007, 12:57 PM   #12
dxb335d
The Tarmac Terrorist
 
dxb335d's Avatar
 
Drives: E46 M3 CS
Join Date: Mar 2007
Location: ''Fandango Towers''

Posts: 29,262
iTrader: (3)

Garage List
why not hit the kickdown click

surely all operators would know how to run up an auto
__________________
M3 gone .... But I now have a M3 CS
dxb335d is offline   England
0
Reply With Quote
      07-21-2007, 01:01 PM   #13
Div4our
Lieutenant
 
Div4our's Avatar
 
Drives: with my right foot down.
Join Date: Dec 2006
Location: Scottsdale, Az

Posts: 513
iTrader: (0)

Send a message via AIM to Div4our
Quote:
Originally Posted by dxb335d View Post
why not hit the kickdown click

surely all operators would know how to run up an auto
it'll cause the car to downshift.
__________________
Hunting for an e92.
Div4our is offline   United_States
0
Reply With Quote
      07-21-2007, 01:08 PM   #14
!Xoible
Banned
 
Drives: ....
Join Date: Nov 2006
Location: .

Posts: 46,037
iTrader: (4)

Garage List
2008 M3  [3.50]
2007 335i  [4.50]
2008 528i  [4.00]
2006 Infiniti - G35 ...  [4.00]
Quote:
Originally Posted by CaptOz View Post
Hi guys. I am having my car dyno’d next week to see what the rear wheels are putting out with the PROcede. After reading some earlier posts, I believe the correct method is the following:
  1. Ensure the DSC is fully off (held for 5 seconds).
  2. Move the auto transmission selector to sport mode.
  3. Accelerate gently using the paddles to reach 4th gear.
  4. Accelerate hard but do not let the accelerator pedal reach as far as the “kickdown” click.
  5. Let the engine rev up to redline.
  6. Drink a glass of champagne to celebrate the fantastic results.

Does this method seem correct to you guys?

Cheers.
the law requires you to dyno responsibly. Dont drink and Dyno

jk
!Xoible is offline   United_States
0
Reply With Quote
      07-21-2007, 01:33 PM   #15
normtrum
Colonel
 
normtrum's Avatar
 
Drives: e90 335i, e46 330i
Join Date: Feb 2007
Location: PNW

Posts: 2,227
iTrader: (1)

Quote:
Originally Posted by mantisG35 View Post
the law requires you to dyno responsibly. Dont drink and Dyno

jk
Ha ha, I wonder if you can get a DUI while on the dyno.
normtrum is offline  
0
Reply With Quote
      07-21-2007, 02:00 PM   #16
hl0m4n
Brigadier General
 
hl0m4n's Avatar
 
Drives: BMW
Join Date: Nov 2006
Location: NY

Posts: 4,833
iTrader: (41)

the most accurate dyno is a dyno jet? when printing out results i just tell the guy give me corrected numbers?
hl0m4n is offline   United_States
0
Reply With Quote
      07-21-2007, 02:11 PM   #17
!Xoible
Banned
 
Drives: ....
Join Date: Nov 2006
Location: .

Posts: 46,037
iTrader: (4)

Garage List
2008 M3  [3.50]
2007 335i  [4.50]
2008 528i  [4.00]
2006 Infiniti - G35 ...  [4.00]
Quote:
Originally Posted by normtrum View Post
Ha ha, I wonder if you can get a DUI while on the dyno.
if you end up ramming the walls!
!Xoible is offline   United_States
0
Reply With Quote
      08-10-2007, 01:11 AM   #18
hl0m4n
Brigadier General
 
hl0m4n's Avatar
 
Drives: BMW
Join Date: Nov 2006
Location: NY

Posts: 4,833
iTrader: (41)

hey what are all the wires that the guys at the shop put into your car on a dynojet?

when doing the dyno do you guys ask for corrected numbers? dynojet is most accurate?
hl0m4n is offline   United_States
0
Reply With Quote
      08-10-2007, 07:18 AM   #19
scalbert
Major General
 
scalbert's Avatar
 
Drives: '08 E90 M3, '13 Volt, '08 Ody
Join Date: Feb 2007
Location: Woodstock, GA

Posts: 5,697
iTrader: (7)

Question, where has everyone picked up a tach signal? I would assume one of the coil packs would suffice. But what is the easiest method to get to one?
scalbert is offline  
0
Reply With Quote
      08-10-2007, 08:04 AM   #20
fll335
Major
 
fll335's Avatar
 
Drives: C6 Z06, X5M
Join Date: Jun 2007
Location: FL

Posts: 1,197
iTrader: (3)

BUMP
fll335 is offline   United_States
0
Reply With Quote
      08-10-2007, 01:04 PM   #21
ni66ale
Lieutenant
 
Drives: 335i alpine white,sports,auto
Join Date: Feb 2007
Location: socal

Posts: 485
iTrader: (2)

Send a message via AIM to ni66ale
what about dyno dynamics is that a good dyno?
__________________
ni66ale is offline  
0
Reply With Quote
      08-10-2007, 01:19 PM   #22
Div4our
Lieutenant
 
Div4our's Avatar
 
Drives: with my right foot down.
Join Date: Dec 2006
Location: Scottsdale, Az

Posts: 513
iTrader: (0)

Send a message via AIM to Div4our
There's more variables than just what dyno you use people. What temperature it is, if the dyno is calibrated correctly, etc.
Mustang dyno's tend to read high from what I've heard though.
__________________
Hunting for an e92.
Div4our is offline   United_States
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 12:29 AM.




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