318ti.org forum

Go Back   318ti.org forum > Technical, Maintenance and Modifications > Engine Swaps

Notices

Engine Swaps Engine conversions.

.
» Recent Threads
FS: Racing Dynamics RGR...
Yesterday 03:29 AM
Last post by 7Senna8
Yesterday 03:29 AM
0 Replies, 245 Views
My 318ti build
05-21-2024 04:48 PM
Last post by Jclare318ti
05-21-2024 04:48 PM
0 Replies, 779 Views
Reply Share/Bookmark
 
Thread Tools Display Modes
Old 01-05-2024, 04:25 AM   #1
Thoglan
Junior Member
 
Join Date: Jan 2024
Location: New Zealand
Posts: 2
iTrader: (0)
Default M44 into a 1995 M42 318is

Bit of a newb to the M42/44 world coming from E46's.
Just picked up an October build 1995 318is with an M42. It's pretty high mileage but I can get my hands on a 100,000km (62,000 miles) M44 out of a 1998 318ti.

I know I will have to convert the M44 to OBD1 with the M42 parts and sensors which I believe is straight forward. Are there any other parts from the M42 that are better and I should carry over?

Is the head design better on the M42? Cams, oil pump? etc. Can you build a hybrid of the two out of the best parts of each or is it best to keep it simple?

Last edited by Thoglan; 01-05-2024 at 04:28 AM.
Thoglan is offline   Reply With Quote
Old 01-10-2024, 04:31 PM   #2
J!m
Moderator
 
J!m's Avatar
 
Join Date: Jun 2003
Location: Bouncing off the rev limiter in CT!
Posts: 3,156
Vehicles
iTrader: (1)
Default

Not sure how the DME and OBD is handles in NEw Zeland, but unlike the six, the conversion on te four may be a bit more complicated.

You MAY be able to "dumb-down" the later engine to OBD-I but I think "uprating" the DME to OBD-II is a better, albeit complicated, option.

I can provide the ETMs for both engines to help sort out the severity of the wiring if you are interested in looking at it closely.

Mechanically, it's not a big deal, although for the time energy and cost, you might as well go to a six...
__________________
"Speed's just a question of money. How fast you 'wanna go?"

Order Swap Manuals Here => http://www.318ti.org/forum/showthread.php?t=12912

WolferJ- gone but not forgotten. R.I.P.
J!m is offline   Reply With Quote
Old 01-12-2024, 05:33 PM   #3
FunElan
Senior Member
 
Join Date: Jul 2012
Location: Dodging potholes in SoCal
Posts: 454
iTrader: (1)
Default

I think the M44 profile gasket design and timing chain tensioner/setup might have been updated for the M44, but I could be wrong.
__________________
'96 318ti California Edition- Montreal blue
'68 1600-2-Caribe blue
FunElan is offline   Reply With Quote
Old 01-13-2024, 12:32 AM   #4
Thoglan
Junior Member
 
Join Date: Jan 2024
Location: New Zealand
Posts: 2
iTrader: (0)
Default

Quote:
Originally Posted by J!m View Post
Not sure how the DME and OBD is handles in NEw Zeland, but unlike the six, the conversion on te four may be a bit more complicated.

You MAY be able to "dumb-down" the later engine to OBD-I but I think "uprating" the DME to OBD-II is a better, albeit complicated, option.

I can provide the ETMs for both engines to help sort out the severity of the wiring if you are interested in looking at it closely.

Mechanically, it's not a big deal, although for the time energy and cost, you might as well go to a six...
What makes the OBD1 conversion more complicated on the 4 pot? I just assumed it was straight forward since it has been done before by RBach here: https://www.318ti.org/forum/showthread.php?t=38474
They seem to mix and match all sorts of parts on M42club and get it to work as long as it has the correct OBD1 sensors so I figured it was do-able.

I already picked up the engine the other day so I'll make it work one way or another.

Going to a six cylinder is tempting but tbh I like the idea of a relatively economical racey 4 cylinder with the light weight flywheel and individual throttles. I already have two 6 cylinder cars, an E46 M3 and a M54B30 converted E46 compact so I wanted to have something a little different from those.
Thoglan is offline   Reply With Quote
Reply

Bookmarks


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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Can a stock M42 run on M44 DME? - mine is ???? N b A m T w E Engine 3 07-29-2022 02:12 AM
318ti use Z3 DME for SAP delete and emissions delete new318tifan Engine 7 06-22-2022 04:25 AM
M42 transform to M44 luz.lucas Engine 12 10-15-2015 09:20 AM
M42 and M44 crossover? FunElan Misc 4 01-15-2014 04:40 PM
Sold the wrong oil pan HELP! fast2002 Maintenance 4 01-27-2012 05:16 AM


All times are GMT +1. The time now is 01:10 AM.


.
Powered by site supporters
vBulletin Version 3.8.8
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©1999 - 2024, 318ti.org
© vBadvanced CMPS v3.2.2
[page compression: 69.53 k/80.91 k (14.06%)]

318ti.org does not warrant or assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information or products discussed.