325e and I - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

 
LinkBack Thread Tools Display Modes
#1 (permalink) Old 08-12-2012, 07:03 AM
n00b
 
e30_fett's Avatar
 
Join Date: Aug 2012
Location: Gardner Kansas
Posts: 14
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
e30_fett is on a distinguished road
(Thread Starter)
325e and I

Has anyone ever swapped an ecu from and I to your e? and the maf would it swap over and would this make any differance in performance?
e30_fett is offline  
Sponsored Links
Advertisement
 
#2 (permalink) Old 08-12-2012, 01:30 PM
1st Gear Member
 
Join Date: Apr 2012
Posts: 151
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
m20enginebuilder is on a distinguished road
Are they both an M20B25? If so, the ecu is simple to swap. Its in the right side of the vehicle under neath the top cover in the glove box
m20enginebuilder is offline  
#3 (permalink) Old 08-12-2012, 02:32 PM
n00b
 
e30_fett's Avatar
 
Join Date: Aug 2012
Location: Gardner Kansas
Posts: 14
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
e30_fett is on a distinguished road
(Thread Starter)
no the E is a 2.7 was just curious since the I has more power if it would make any differance in the way it thinks its getting fuel/air etc...
e30_fett is offline  
#4 (permalink) Old 08-12-2012, 02:46 PM
1st Gear Member
 
Join Date: Apr 2012
Posts: 151
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
m20enginebuilder is on a distinguished road
Quote:
Originally Posted by e30_fett View Post
no the E is a 2.7 was just curious since the I has more power if it would make any differance in the way it thinks its getting fuel/air etc...
I dunno, I know a 2.7 is bigger in some way mechanically. I think it has larger bores
m20enginebuilder is offline  
#5 (permalink) Old 08-12-2012, 11:20 PM
OMFG another one!?
 
witeshark's Avatar
 
Join Date: Aug 2004
Location: Miami FL
Posts: 14,697
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
witeshark is just really nice witeshark is just really nice witeshark is just really nice witeshark is just really nice witeshark is just really nice
The M20 2.7 'eta' was designed with increased displacement and lower revving, torque enhanced I6 to offer a higher fuel economy model at the expense of some performance.

BMW

Sig by zeaq
witeshark is offline  
#6 (permalink) Old 08-13-2012, 02:13 AM
1st Gear Member
 
Join Date: Apr 2012
Posts: 151
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
m20enginebuilder is on a distinguished road
Quote:
Originally Posted by witeshark View Post
The M20 2.7 'eta' was designed with increased displacement and lower revving, torque enhanced I6 to offer a higher fuel economy model at the expense of some performance.
that explains why it has a lower redline than my E30 with the 2.5 litre. That means, since it has more torque, it has not a bigger bore like I origionally thought, but a longer stroke. HA! NOW I know how to build a 2.9 litre stroker! YAY!
m20enginebuilder is offline  
#7 (permalink) Old 08-21-2012, 03:03 AM
n00b
 
Join Date: Sep 2008
Location: Indpls.
Posts: 24
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
OICU812 is on a distinguished road
4700

The e model has a rev limiter to protect the weaker e model valve train.
A good upgrade is to switch out the head from an i and start from there.
Check out the difference between the two heads.
OICU812 is offline  
Sponsored Links
Advertisement
 
Reply

  BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 3-Series (E21, E30)


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
my 85 325e naynayman420 3-Series (E21, E30) 0 04-21-2008 11:24 PM
Anyone Looking For A 84 325e? emericadna7 3-Series (E21, E30) 0 05-09-2005 02:49 PM
RIP 84 E30 325e gotKRAUT 3-Series (E21, E30) 13 09-24-2004 11:22 PM
'85 325e needs help!! pig325e 3-Series (E21, E30) 3 07-02-2004 01:16 AM
Here's my 325e 2001 Yellow 3-Series (E21, E30) 0 03-28-2004 06:48 PM

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

 
For the best viewing experience please update your browser to Google Chrome