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E46 Engine Swaps
Replacing your motor? From direct replacements to more exoctic engines, if it's going under the hood of an E46 3 Series this is the forum to discuss it.

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Old 02-13-2013, 03:01 PM   #1
Sylv
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NexGen's e46 "340ci" m62tub44 Swap Build

Yes, this is serious. We are responsible for installing a roots blower on an e39 540iT 6 Speed which can be seen here on the dyno.



We have been talking about doing a v8 swap into an e46 for a while now and we have finally got at it.







Got the Getrag 420g, guy gave the whole set needed for the swap


Engine (With our blower)


Wanted to see how the M3 Shift knob would look w/ the suede trim


On a side note:
We have also wrapped the wood trim in suede (realize i never took a picture of the door panels)



Not only that but we have also wrapped the top to be black instead of gray




How it currently looks in the car


Engine Mounts and Transmission Mounts are finished.

Removed the whole dash to begin rewiring the harness, already removed the automatic transmission wiring. Installed the clutch pedal system.



Shifter installed


Headers and Wiring Harness Completed. Next is to install the driveshaft and finally the exhaust.





Video of the Car first starting up

e46 M62tub44 First Startup Video by NexGenPerformance | Photobucket

This was not a simple swap and involved a lot of cutting and welding to make this happen. Definitely something you do not want to do unless you know what you are getting into and have the right tools for the job.

"Why not swap an Ls1?"
Well we wanted to keep the engine at least from BMW and we can also install our supercharger after we have everything running correctly.
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Old 02-13-2013, 03:07 PM   #2
WDE46
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Awesome. How much do you think it puts out now?

Only thing that concerns me is the proximity of hte exhaust to the steering guibo. That things gonna melt. Maybe just convert it to aluminum.
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Old 02-13-2013, 03:10 PM   #3
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Badass!
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Old 02-13-2013, 03:17 PM   #4
JohnBlaze
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this should be in the FI section or showroom.

Cool project
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Old 02-13-2013, 03:22 PM   #5
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Love the wrapped suede trim idea. I might consider doing a matching alcantara wrap on mine. The F30 does that now.
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Old 02-13-2013, 04:18 PM   #6
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Interesting, but totally pointless to put M62TU into E46. As N/A it is just about 60 hp more than M54B30, but it is much heavier plus all the hassle with engine mounts, tranny, driveshaft, harness etc. And the real killer of this idea is the option to swap S54B32 that is about 40 hp more powerful than M62, lighter and virtually plug-n-play for E46. And yes, it can be supercharged too.
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Last edited by Nervous; 02-13-2013 at 04:19 PM. Reason: Auto-save 1360793987
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Old 03-22-2013, 08:26 PM   #7
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Quote:
Originally Posted by Nervous View Post
Interesting, but totally pointless to put M62TU into E46. As N/A it is just about 60 hp more than M54B30, but it is much heavier plus all the hassle with engine mounts, tranny, driveshaft, harness etc. And the real killer of this idea is the option to swap S54B32 that is about 40 hp more powerful than M62, lighter and virtually plug-n-play for E46. And yes, it can be supercharged too.
I wouldn't go as far to say a swap like this is 'pointless.' With the experience we had doing this swap, we could go out and buy an e46 M3 and swap in the s62b50. Now we have a unique vehicle and there are probably less than 30 v8 e46's out there. We have one of them. To make it even more unique, we could install our own Roots Blower that can be seen on the very first link of the OP. "Will we?" -- Very possible, but the car needs wider tires

There really isn't a point to go buy an s54 motor and swap it into an e46 non-m coupe/vert. Maybe for a sedan/wagon as that would be a better option for a unique vehicle. The whole idea here is swapping a v8 yet keeping a BMW engine in a BMW vehicle.

Car is basically completed. Got the alignment done as well as the exhaust. At both places, the neighboring shops were crowding over the engine bay with amazement

Exhaust setup is "Headers -> Magnaflow Hi-Flow X Pipe cat (In case we do end up doing a dual exhaust) -> Y Pipe -> DynoMax VT Muffler (supposed to be 3 in/out but apparently dynomax just stretch a 2.5" to be a 3" in/out, sort of unfortunate but no big deal as a 540i OEM exhaust is 2.5")"

Pics of how the car stands now:



Next plan is to probably de-chrome the car haha it looks nice, but I prefer it to be either OEM or black


Fly By Vid:
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Old 03-22-2013, 09:06 PM   #8
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how does it look under the hood?
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Old 03-22-2013, 09:32 PM   #9
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Completely forgot to take that picture, but here is the bay just without a filter

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Old 03-23-2013, 12:38 AM   #10
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That is awesome. I wish I would have done a v8 instead of a supercharger. That car would be wicked with a supercharger.
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Old 03-23-2013, 01:00 AM   #11
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Uhm.... M62 is ~100 lbs heavier than M54, plus, I bet the 6 spd getrag is heavier than zf trannys (even than ZF S6 37BZ). This eats some part of those extra 60 hp, in addition to shifted weight distribution (now, nose is heavier, so it is not 50/50 anymore). Considering the price and labor of the swap, I'd say it not worth it. IMO, of course. Nevertheless - congrats with the completion of this project.
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Old 04-06-2013, 02:50 PM   #12
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That is a briliant build hats of to you, just wanted to know what sump oil pump combo you used or how did you get round clearance issues on that side of things?
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Old 04-06-2013, 03:15 PM   #13
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Very cool.. i would assume that an s54 swap would be easier and faster though.

when are you throwing the super charger on?
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Old 08-14-2013, 03:09 PM   #14
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NexGen's e46 "340ci" m62tub44 Swap Build

This is a swap that I have been wanting to do since I pretty much got my Bimmer.
M62tub44 I had just heard deep pockets are needed and the wiring is a bitch

I'm one of those who is willing to put the 5.3 lm7 from a 2000 1500
Just simple cause of the stand alone manager system
And or the 4200 LL8 4.2 straight 6.
Just saw complete engine with trans and ECU on eBay for under 1500 including shipping


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Old 08-14-2013, 03:38 PM   #15
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Quote:
Originally Posted by WDE46 View Post
Awesome. How much do you think it puts out now?

Only thing that concerns me is the proximity of hte exhaust to the steering guibo. That things gonna melt. Maybe just convert it to aluminum.
The RHD version of the steering u-joint has a steel hat around the rubber because of the proximity to the exhaust manifold
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Old 08-21-2013, 05:48 AM   #16
gfox
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Sylv, hello. My name is Vadim. I from Russia. I have e46 318 1999 and i want to make swap to m62b35. I understand the installation prevents beam. How to be? Can you tell me about the process?

PS: sorry for my english
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Old 08-21-2013, 07:32 AM   #17
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NexGen's e46 "340ci" m62tub44 Swap Build

Wow totally awesome!
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Old 08-21-2013, 08:58 AM   #18
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What a bad mothe Fker :-P..

E46 the ultimate classic where everyone is willing keep the design and swap engines.
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Old 08-22-2013, 02:14 PM   #19
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very awesome! great job
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Old 08-22-2013, 02:40 PM   #20
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Very cool project. Picture of the cluster with the car running? Are all systems (A/C, ABS, DSC, OBD2 monitoring) working?
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