Conversions & Swaps LSX Engines in Non-LSX Vehicles
Sponsored by:
Sponsored by:

BMW E46 awaiting

Thread Tools
 
Search this Thread
 
Old 12-16-2017, 09:23 PM
  #41  
On The Tree
Thread Starter
 
Matt330LS's Avatar
 
Join Date: Aug 2016
Posts: 128
Received 9 Likes on 8 Posts
Default



Cage underway. Should be done mid-week.
Old 12-23-2017, 04:35 PM
  #42  
On The Tree
Thread Starter
 
Matt330LS's Avatar
 
Join Date: Aug 2016
Posts: 128
Received 9 Likes on 8 Posts
Default

Cage done, back from fabricator. Really happy with the way it turned out. Still plenty of work ahead, but it’s getting there one step at a time.









Old 01-21-2019, 05:23 PM
  #43  
On The Tree
Thread Starter
 
Matt330LS's Avatar
 
Join Date: Aug 2016
Posts: 128
Received 9 Likes on 8 Posts
Default

Well I’m still pressing forward a bit at a time bewtween work, moving, and life in general. Finally got a T56 and clutch (thanks to Jason at Texas Drivetrain for the help). Got the driveline fitted then pulled for some trans tunnel massaging and heat shielding. Ordered a bunch of parts that are sitting in the garage waiting for their turn to get installed.

My latest work has been thinning out the factory wiring harness. What a pain in the ***. BMW has wiring everywhere and computers are integrated into every circuit. I’ve probably pulled 50 plus pounds of wiring. For all the tedious work though, I’m getting more excited the closer I get.
Old 01-21-2019, 05:25 PM
  #44  
On The Tree
Thread Starter
 
Matt330LS's Avatar
 
Join Date: Aug 2016
Posts: 128
Received 9 Likes on 8 Posts
Default


Old 01-21-2019, 05:28 PM
  #45  
On The Tree
Thread Starter
 
Matt330LS's Avatar
 
Join Date: Aug 2016
Posts: 128
Received 9 Likes on 8 Posts
Default


Old 05-12-2019, 08:09 PM
  #46  
TECH Fanatic
iTrader: (23)
 
chuckd71's Avatar
 
Join Date: Jul 2010
Location: Nashville / Tampa
Posts: 1,763
Received 18 Likes on 15 Posts

Default

Any updates on this? I found a 2003 convertible M3 with rod knock I was thinking about picking up. Looking to do budget 5.3 swap, was curious how your exhaust worked out.
Old 05-13-2019, 03:48 AM
  #47  
On The Tree
Thread Starter
 
Matt330LS's Avatar
 
Join Date: Aug 2016
Posts: 128
Received 9 Likes on 8 Posts
Default

Still going at it slowly. Haven't run the exhaust yet, still trying to wrap up some other pieces of the puzzle. My intent is to run the headers into a Y-pipe and single 2.5" out the back left side in the stock location. Yours would be a bit different since it's an M3. You'll have the dual outlets centered in the rear valence.
Old 05-13-2019, 10:20 AM
  #48  
TECH Senior Member
 
G Atsma's Avatar
 
Join Date: Jun 2016
Location: Central Cal.
Posts: 21,105
Received 3,103 Likes on 2,419 Posts
Default

A 2.5" single exhaust is REALLY going to choke an LS engine. Do at least 3" if possible.
Old 05-13-2019, 11:43 AM
  #49  
On The Tree
Thread Starter
 
Matt330LS's Avatar
 
Join Date: Aug 2016
Posts: 128
Received 9 Likes on 8 Posts
Default

Originally Posted by G Atsma
A 2.5" single exhaust is REALLY going to choke an LS engine. Do at least 3" if possible.
Hopefully I'll be able to, and I know there is a Bimmerworld kit that's a 3.5" single for stock BMW drivetrain. Until I'm at that point and get my measurements the 2.5" plan is a worst-case.
Old 05-13-2019, 11:45 AM
  #50  
TECH Senior Member
 
G Atsma's Avatar
 
Join Date: Jun 2016
Location: Central Cal.
Posts: 21,105
Received 3,103 Likes on 2,419 Posts
Default

A good muffler shop can fab up a 3" system pretty easily. I would not go off the shelf.
The following users liked this post:
Homer_Simpson (12-05-2021)
Old 05-13-2019, 12:51 PM
  #51  
On The Tree
Thread Starter
 
Matt330LS's Avatar
 
Join Date: Aug 2016
Posts: 128
Received 9 Likes on 8 Posts
Default

Originally Posted by G Atsma
A good muffler shop can fab up a 3" system pretty easily. I would not go off the shelf.
I agree.
The following users liked this post:
Homer_Simpson (12-05-2021)
Old 06-05-2019, 10:51 AM
  #52  
Teching In
 
E46toLSx's Avatar
 
Join Date: Jun 2019
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts
Default

How much power do you plan on putting down with your setup?
Old 06-05-2019, 12:33 PM
  #53  
On The Tree
Thread Starter
 
Matt330LS's Avatar
 
Join Date: Aug 2016
Posts: 128
Received 9 Likes on 8 Posts
Default

Originally Posted by E46toLSx
How much power do you plan on putting down with your setup?
I'd like to see 375-400 hp to the tires. That number should keep me square in the TT2 group in NASA once I get through HPDE progression.
Old 08-11-2019, 12:13 AM
  #54  
Teching In
 
Gbodyshuffle88's Avatar
 
Join Date: Feb 2018
Posts: 11
Likes: 0
Received 0 Likes on 0 Posts
Default

Awesome super clean build man. Props! Curious what oil pan you used? Looks pretty tight between the pan and rack and pinion. My brother has an E46 and we just started working on a 5.3 swap in it, picked the 5.3 up last weekend, going in the morning to start yanking the old i6 out. Want to make sure we get a pan that will. Also unrelated but I saw you mentioned going to a shop in Nashville, where do you live? I’m about 45ish minutes south of Nashville in the Columbia/Spring Hill area.
Old 08-11-2019, 02:51 AM
  #55  
TECH Junkie
iTrader: (1)
 
Michael Yount's Avatar
 
Join Date: Jun 2015
Posts: 3,108
Received 464 Likes on 350 Posts
Default

https://www.exhaustvideos.com/faq/ho...pipe-diameter/

Scroll down to table - even a single 3” will be limiting...and generally the LS motors want all the help on the exhaust side you can give them.
The following users liked this post:
Homer_Simpson (07-14-2023)
Old 08-12-2019, 07:54 AM
  #56  
On The Tree
Thread Starter
 
Matt330LS's Avatar
 
Join Date: Aug 2016
Posts: 128
Received 9 Likes on 8 Posts
Default

Originally Posted by Gbodyshuffle88
Awesome super clean build man. Props! Curious what oil pan you used? Looks pretty tight between the pan and rack and pinion. My brother has an E46 and we just started working on a 5.3 swap in it, picked the 5.3 up last weekend, going in the morning to start yanking the old i6 out. Want to make sure we get a pan that will. Also unrelated but I saw you mentioned going to a shop in Nashville, where do you live? I’m about 45ish minutes south of Nashville in the Columbia/Spring Hill area.
I used the Holley LS retrofit oil pan, 302-1 I believe is the part number. As for clearance it's much better now, that photo was taken with the first iteration of motor mounts. I switched those a few months ago and everything fits much better.

I used to live in Clarksville, about 40 miles west of downtown, but have since moved. Was there about 17 years. The shop I used for the cage, subframe reinforcement and fuel cell mounting was Coffey Fabrication and Race Prep. I highly recommend you check him out if you need any fab work. Owner is Chris, and he's got a lot of great projects done/going.

Edit to add: If you're going with off the shelf swap mounts, pony up for the Vorshlag gear up front. It hurts a little more in the wallet, but I tried the CX Racing (what you see in the pics) trying to be cheap and it was a big headache. Save yourself the aggravation and get the Vorshlag. I'll add some more pics eventually and you'll see the much better fit and finish, and better clearance.
Old 08-12-2019, 08:01 AM
  #57  
On The Tree
Thread Starter
 
Matt330LS's Avatar
 
Join Date: Aug 2016
Posts: 128
Received 9 Likes on 8 Posts
Default

Originally Posted by Michael Yount
https://www.exhaustvideos.com/faq/ho...pipe-diameter/

Scroll down to table - even a single 3” will be limiting...and generally the LS motors want all the help on the exhaust side you can give them.
Thanks for the link. It'll be tight under there for 3" duals but will definitely try.
Old 08-13-2019, 08:10 AM
  #58  
TECH Fanatic
 
LSswap's Avatar
 
Join Date: Nov 2014
Posts: 1,148
Received 506 Likes on 330 Posts
Default

Enjoying the build. Keep it up.
Old 08-13-2019, 03:58 PM
  #59  
On The Tree
Thread Starter
 
Matt330LS's Avatar
 
Join Date: Aug 2016
Posts: 128
Received 9 Likes on 8 Posts
Default

No "major" progress to note. Most of my time on the car was spent thinning the wiring down to minimal necessary circuits. I went from this rats nest:



To a bit better and neater:



Tested all circuits for proper function. Headlights, tail lights, brake lights, turn signals and four ways all good. Also kept power windows successfully, but then decided that this car has suffered from far more project creep than originally planned and had become much more "track" than the "street-track" that I was shooting for. Taking that into consideration I ditched the power window circuit and gutted the doors. No more side windows.
Old 08-13-2019, 04:03 PM
  #60  
On The Tree
Thread Starter
 
Matt330LS's Avatar
 
Join Date: Aug 2016
Posts: 128
Received 9 Likes on 8 Posts
Default





Initially I bought CX Racing mounts to save money. In the end they caused far more aggravation than the savings was worth. Switched over to Vorshlag and very happy I did, even at double the price. Anyone looking to do an E46-LSx swap should just get the Vorshlag and be done with it unless they're making their own mounts.


Quick Reply: BMW E46 awaiting



All times are GMT -5. The time now is 01:28 PM.