E90Post
 


VIBE Motorsports
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N57 / M57 Turbo Diesel Discussions - 335d > RPM by geat, optimal shift points



Reply
 
Thread Tools Search this Thread
      07-13-2011, 04:30 PM   #1
autoJeff
Private
 
autoJeff's Avatar
 
Drives: 335d
Join Date: Oct 2009
Location: RTP, NC, USA

Posts: 56
iTrader: (0)

RPM by geat, optimal shift points

Its not unusual for someone to say that the 335d needs to shift \"sooner\" than the 335i. I don\'t make that assumption on face value. The geek in my craves theoretical or empirical proof.

We should have the data necessary to graph RPM ranges by speed for each gear. And with dyno data to calculate optimal shift points at WOT. Assuming that the torque converter is locked up, which it will be by the end of 2nd gear.

Has anyone already done the calculations for these two cars?
autoJeff is offline   United_States
0
Reply With Quote
      07-19-2011, 05:59 PM   #2
SomeRandomer123
Colonel
 
SomeRandomer123's Avatar
 
Drives: F30 328i Luxury - Sport Auto
Join Date: May 2011
Location: Lancashire, North West England, UK

Posts: 2,539
iTrader: (0)

Please don't come to my house for dinner.
__________________

Gone: 2006 BMW E60 520d SE 6MT
Gone: 2009 BMW E90-LCI 330d SE 6MT
Current: 2012 F30 328i Luxury 8AT
My 328i initial thoughts + media!http://www.f30post.com/forums/showthread.php?t=712673
SomeRandomer123 is offline   England
0
Reply With Quote
      07-20-2011, 10:06 AM   #3
DnA Diesel
Major
 
Drives: 09 335d Sport SGrey/Blk/Blk
Join Date: Dec 2009
Location: Kingston, Ontario, Canada

Posts: 1,101
iTrader: (0)

Quote:
Originally Posted by SomeRandomer123 View Post
Please don't come to my house for dinner.
LOL

That said, Andy, I've told myself that when I have some spare time, I'll whip up an Excel spreadsheet to see where the optimized "power under the curve" would be. Just waiting for some spare time...

Cheers
D.
__________________
2009 335d Sport - Space Grey, Gloss Black on Black Leather (pics)

DnA Diesel is offline   Canada
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 09:44 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