Home Forums Articles How To's FAQ Register
Go Back   Xoutpost.com > BMW SAV Forums > X5 (E53) Forum
4.6is 4.4i engine swap 4.6is 4.4i engine swap
Fluid Motor Union
User Name
Password
Member List Premier Membership Today's Posts New Posts

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


Reply
Page 2 of 2 1 2
 
LinkBack Thread Tools Display Modes
  #11  
Old 02-19-2012, 03:07 PM
JCL's Avatar
JCL JCL is offline
Premier Member
  
Join Date: Mar 2005
Location: Vancouver, Canada
Posts: 11,853
JCL will become famous soon enoughJCL will become famous soon enough
Quote:
Originally Posted by The German View Post
Anybody know for Sure if I can just swap the two engines and replace the 4.6is computer with the 4.4's?
No, because the only way to find out is to do it, and nobody has tried. However, we do know that the various modules communicate with each other, that they expect certain modules to exist on the bus with them, and that the combination you are proposing was never built by BMW, so it is reasonable to expect that some custom programming may be required if it is even possible. You should also expect error messages and faults.

These aren't '57 Chevs that you can simply bolt in any power you like. It is more akin to putting a different Intel processor in a computer that was never offered with that processor, and not knowing what would happen until you fully debugged it.
__________________
2007 X3 3.0si, 6 MT, Premium, White

Retired:
2008 535i, 6 MT, M Sport, Premium, Space Grey
2003 X5 3.0 Steptronic, Premium, Titanium Silver
2002 325xi 5 MT, Steel Grey
2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue
Reply With Quote

Sponsored Links

  #12  
Old 02-19-2012, 03:32 PM
Member
  
Join Date: Oct 2011
Location: Illinois
Posts: 16
The German is on a distinguished road
Guess i will just start looking for a good 4.6is engine. Maybe I could make enough off selling my 4.4 and my bad 4.6 to pay for it. Anyone know of any 4.6is engines out there?
Reply With Quote
  #13  
Old 02-19-2012, 07:32 PM
PropellerHead's Avatar
Member
  
Join Date: Dec 2006
Location: At the wheel of a Bimmer
Posts: 2,275
PropellerHead is on a distinguished road
Quote:
Originally Posted by The German View Post
Guess i will just start looking for a good 4.6is engine. Maybe I could make enough off selling my 4.4 and my bad 4.6 to pay for it. Anyone know of any 4.6is engines out there?
A guy in the E39 world did the opposite. Changed his 4.4 for a 4.6. In his E39. The bottom end bolts right to the top.

Guy was from TX. I'll have to try to find his thread.

Found the link.
__________________
Last edited by PropellerHead; 02-20-2012 at 12:00 AM.
Reply With Quote
  #14  
Old 02-20-2012, 08:51 AM
Member
  
Join Date: Oct 2011
Location: Illinois
Posts: 16
The German is on a distinguished road
Quote:
Originally Posted by PropellerHead View Post
A guy in the E39 world did the opposite. Changed his 4.4 for a 4.6. In his E39. The bottom end bolts right to the top.

Guy was from TX. I'll have to try to find his thread.

Found the link.
Thanks! He seems like he knows what he's doing. I just sent him a PM. Hopefully he can offer some advise for my case.
Reply With Quote
  #15  
Old 02-20-2012, 05:05 PM
JCL's Avatar
JCL JCL is offline
Premier Member
  
Join Date: Mar 2005
Location: Vancouver, Canada
Posts: 11,853
JCL will become famous soon enoughJCL will become famous soon enough
Sounds like he swapped a short block, not the complete engine.
__________________
2007 X3 3.0si, 6 MT, Premium, White

Retired:
2008 535i, 6 MT, M Sport, Premium, Space Grey
2003 X5 3.0 Steptronic, Premium, Titanium Silver
2002 325xi 5 MT, Steel Grey
2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue
Reply With Quote
  #16  
Old 02-20-2012, 09:14 PM
bigbabyE53's Avatar
Member
  
Join Date: Feb 2012
Location: Cincinnati
Posts: 34
bigbabyE53 is on a distinguished road
what happened to your 4.6?
Reply With Quote
  #17  
Old 02-20-2012, 10:02 PM
Member
  
Join Date: Oct 2011
Location: Illinois
Posts: 16
The German is on a distinguished road
Timing chain popped off because the tensioners went bad. (I bought it this way). Im assuming there is some valve damage so just looking for the quickest/cheapest way to get it going again.
Reply With Quote
  #18  
Old 02-20-2012, 10:17 PM
bigwave2255's Avatar
Member
  
Join Date: Jun 2010
Location: australia
Posts: 487
bigwave2255 is on a distinguished road
why would you have to change anything other than the motor (hardware)

surly the only problem will be the increased cubic capacity going from 4.6 to 4.4 so couldnt you just get a re map???
Reply With Quote
  #19  
Old 02-20-2012, 10:20 PM
bigwave2255's Avatar
Member
  
Join Date: Jun 2010
Location: australia
Posts: 487
bigwave2255 is on a distinguished road
yeah yeah i know decreased cubic capacity, the site would not let me edit
Reply With Quote
Reply
Page 2 of 2 1 2

Bookmarks

« Previous Thread | Next Thread »

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



Contact Us - Xoutpost - Sponsors - Archive - Top

All times are GMT -4. The time now is 04:29 AM.
vBulletin, Copyright 2025, 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.