Home Forums Articles How To's FAQ Register
Go Back   Xoutpost.com > BMW SAV Forums > X ///M Forum
Fluid Motor Union
User Name
Password
Member List Premier Membership Search Today's Posts Mark Forums Read

Xoutpost server transfer and maintenance is occurring....
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management


Reply
 
LinkBack Thread Tools Display Modes
  #11  
Old 08-01-2010, 02:04 AM
Member
 
Join Date: Apr 2010
Location: new york
Posts: 22
x6m_monster is on a distinguished road
510 WHP is very high , as i got 511 WHP after the chip and exhaust upgrade !!


And in additional i have changed the head of exhaust to hamann which i believe reduced the WHP.
Reply With Quote

Sponsored Links

  #12  
Old 08-01-2010, 10:27 AM
Weasel's Avatar
Almost never on here anymore :(
 
Join Date: Jul 2008
Location: New Orleans, La
Posts: 6,892
Weasel will become famous soon enough
Head of exhaust as in pre-turbo/manifolds? If so then you likely did lower WHP. BMW actually has a lot of research and development in the headers to get the max out of it. And the downpipe diameter/flow-rate has a lot to do with spool time/lag. I'd likely just stick with a muffler change till I saw a company had done the proper R&D and had dyno graphs to prove it.
__________________
"When you do things right, people won't be sure you've done anything at all" (Bender, futurama)

You make something idiotproof, they'll make a better idiot


You think professional is expensive, just wait until you pay for amateur.

Never let your sense of morals prevent you from doing what is right.

Examine what is said, not who speaks.

X5 pics

RIP 4.6is.....

2003 4.6is
Reply With Quote
  #13  
Old 08-03-2010, 01:06 AM
Member
 
Join Date: Apr 2010
Location: new york
Posts: 22
x6m_monster is on a distinguished road
i totally agree with you i feel i lost some power even tho the BMW guy told me its better performance now but i dont believe him.

BTW I Installed the HAMANN SPORT REAR MUFFLER 4 TAILPIPES , to be honest the sound is much better than before.

If as you said a test is done to see the changes in HP power before and after installing the exhaust, my older muffler is available
Reply With Quote
  #14  
Old 08-03-2010, 08:07 AM
LeMansX5's Avatar
Admin
 
Join Date: Mar 2005
Location: X5world
Posts: 20,257
LeMansX5 has a spectacular aura aboutLeMansX5 has a spectacular aura aboutLeMansX5 has a spectacular aura about
Quote:
Originally Posted by x6m_monster View Post
i totally agree with you i feel i lost some power even tho the BMW guy told me its better performance now but i dont believe him.

BTW I Installed the HAMANN SPORT REAR MUFFLER 4 TAILPIPES , to be honest the sound is much better than before.

If as you said a test is done to see the changes in HP power before and after installing the exhaust, my older muffler is available
pics and video?
Reply With Quote
  #15  
Old 10-27-2010, 02:58 PM
J.Belknap's Avatar
Member
 
Join Date: Feb 2009
Location: NY
Posts: 2,001
J.Belknap is on a distinguished road
Bump?

da3bous... was really looking forward to see a .jpg of the graph with any sensors measured. (If by chance you had made pre-cat WBO2 bungs and measured A/F)

Hoping you don't mind a newbie requesting that...

E-mail?
__________________
Previously owned: '03 4.6iS Dinan Supercharged
Reply With Quote
  #16  
Old 11-15-2010, 08:08 PM
Member
 
Join Date: Jan 2010
Location: Moscow
Posts: 71
Iluxa is on a distinguished road
X5M and X6M exhausts are different, right? I figure the difference is in the tip allocation, anyone got eisenmann X5M part No.? Also, do you think Eisenmann backbox will fit SS x-pipe?
Reply With Quote
  #17  
Old 08-25-2011, 10:01 PM
Member
 
Join Date: Mar 2011
Location: Singapore
Posts: 2
X5MStorm is on a distinguished road
I'm contemplating the Akrapovic Evolution set for my X5M. Has anyone tried these out?
Reply With Quote
  #18  
Old 08-26-2011, 04:56 AM
Member
 
Join Date: Jul 2011
Location: Off the Grid
Posts: 148
donho is on a distinguished road
511HP going through an automatic and awd???

factory HP numbers are not ever Wheel HP and there has to be losses in drivetrain, quite a bit with an AWD vehicle. On typical RWD vehicles, the average loss is 15-20%. it should be higher with AWD

using just a 15% correction, your truck makes 587hp?????

If you are telling me your truck is stock, then

If it already has a tune, then your track performance is way off
__________________
2011 BMW X5 M
2009 Mercedes E63 AMG-FOR SALE or TRADE
Reply With Quote
  #19  
Old 07-14-2012, 12:44 PM
Member
 
Join Date: Jul 2009
Location: NY
Posts: 94
jarodl is on a distinguished road
...

.....
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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
Trackbacks are On
Pingbacks are On
Refbacks are On





All times are GMT -4. The time now is 05:51 PM.
vBulletin, Copyright 2019, Jelsoft Enterprises Ltd. SEO by vBSEO 3.6.0
2017 Xoutpost.com. All rights reserved. Xoutpost.com is a private enthusiast site not associated with BMW AG.
The BMW name, marks, M stripe logo, and Roundel logo as well as X3, X5 and X6 designations used in the pages of this Web Site are the property of BMW AG.
This web site is not sponsored or affiliated in any way with BMW AG or any of its subsidiaries.