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Old 02-05-2015, 07:43 PM   #1
BimmerIsMyName
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Anyone with Experience Engine and Drivetrain Swaps?

Has anybody ever done an engine swap and drivetrain swap on a vehicle? What're some things to look out for? Any advice?

I ask, cause i'm contemplating some MAJOR surgery for my Mk5 next winter. At this point, i've done pretty much everything i can, short of Forced Induction swap, to the 2.5L i have. Got the idea from a co-worker to located a B6 VW Passat 3.6L (V6) 4Motion from a junkyard or salvage auction n swap the internals over to my Jetta.

I've never done anything like an engine swap or drive train conversion before and figured i'd ask for advice.
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Old 02-05-2015, 07:44 PM   #2
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i'll swap your drivetrain alright.
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Old 02-05-2015, 07:53 PM   #3
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z00 may have experience in swapped drive trains if you know what I mean.
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Old 02-05-2015, 07:57 PM   #4
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I would just sell it and get a 2.0T car. Engine swaps are a pain in the ass.
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Old 02-05-2015, 08:10 PM   #5
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Tbh, I really have no idea how to drive a train.
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Old 02-05-2015, 08:25 PM   #6
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I would just sell it and get a 2.0T car. Engine swaps are a pain in the ass.
2.0T are a pain in the a$$. Have to fvcking replace to cam fouler every 10-15,000 miles. Not to mention they're notorious for having a stupid amount of carbon build up too.

If i do go do this road, it'll be possibly one of the first Mk5 Jetta's out there that will have a 3.6L V6 swapped in and AWD conversion. I'm just indecisive if i wanna keep modding the Mk5 (as i've done almost everything short of turbo, which would easily be around $7,000 when all is said and done) or just keep the Mk5 as is after this summer n save my monies for a BMW.
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Old 02-05-2015, 08:35 PM   #7
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Sure no problem, you can knock it out in a weekend tops.
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Old 02-05-2015, 08:42 PM   #8
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Sure no problem, you can knock it out in a weekend tops.
Famous last words.
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Old 02-05-2015, 08:47 PM   #9
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Old 02-05-2015, 08:52 PM   #10
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I've helped with a older muscle car motor swap so not sure how relevant my experience is.

If it were a complete kit, say a flying miata v8 swap kit, it'd be pretty easy. If your one of the first ones to do a swap like your talking about it could be a HUGE sh1t storm. I'm not too familiar with the vw's, but are you talking a fwd to awd swap? 4 to 6 cylinder swap?

Either way there is a lot of stuff to think about. Ecu, wiring, motor and trans mounts, all the little things like steering linkage, exhaust fitment, moving stuff like brake and steering lines, etc.
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Old 02-05-2015, 08:59 PM   #11
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I've helped with a older muscle car motor swap so not sure how relevant my experience is.

If it were a complete kit, say a flying miata v8 swap kit, it'd be pretty easy. If your one of the first ones to do a swap like your talking about it could be a HUGE sh1t storm. I'm not too familiar with the vw's, but are you talking a fwd to awd swap? 4 to 6 cylinder swap?

Either way there is a lot of stuff to think about. Ecu, wiring, motor and trans mounts, all the little things like steering linkage, exhaust fitment, moving stuff like brake and steering lines, etc.
Yea, talking about going from FWD to AWD with 4Motion. And going from 5 cylinders with the 2.5L to 6 cylinders with the 3.6L.

I could be VERY wrong, but my thought process is to find a B6 Passat 3.6L 4Motion at an insurance auction or one that has been totaled out and to simply pilfer the parts from the Passat into my Jetta. Off the top of my head, pull the engine, trans, ECU and wiring harness out. It seems that that would be the easier part of the "project". I'd think the AWD conversion would be the biggest pain in the ass. As for exhaust, just straight pipe the b!tch. Then again, what do i know. Nothing, cause i've never attempted to do anything like this before
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Old 02-05-2015, 09:04 PM   #12
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The mk5 is available in awd right? Does it already have the tunnel?
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Old 02-05-2015, 09:09 PM   #13
BimmerIsMyName
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The mk5 is available in awd right? Does it already have the tunnel?
Mk5 Jetta never had an AWD option, however, it does have the tunnel in there. Mk5's had 4Motion with the Passats and R32.
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Old 02-05-2015, 09:13 PM   #14
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Sell your car and buy one that has what you're missing.

or

Accept what you have.




What you're describing is a pain in the ass.
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Old 02-05-2015, 09:19 PM   #15
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If it were my car I'd consider the the following options.

-Leave fwd and built motor. I don't think the headache and weight of adding awd would be worth it.

-Fvck the passat motor and do an ls1 swap. Great motor, probably have kits and how tos available, would be somewhat easy to do a rwd setup.

-Look into selling the car for a car that's already awd or just go rwd. Not sure what your car would go for, but add that, parts, labor, headaches, etc and it might be worth switching cars. Brz, older evo or sti, r32, etc.

Not to say what your looking to do is impossible, but doing a motor swap and awd conversion doesn't sound like it's worth it to put a passat motor in.

Last edited by RossGuy; 02-05-2015 at 09:22 PM.
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Old 02-05-2015, 09:38 PM   #16
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Originally Posted by BimmerIsMyName View Post
Yea, talking about going from FWD to AWD with 4Motion. And going from 5 cylinders with the 2.5L to 6 cylinders with the 3.6L.



I could be VERY wrong, but my thought process is to find a B6 Passat 3.6L 4Motion at an insurance auction or one that has been totaled out and to simply pilfer the parts from the Passat into my Jetta. Off the top of my head, pull the engine, trans, ECU and wiring harness out. It seems that that would be the easier part of the "project". I'd think the AWD conversion would be the biggest pain in the ass. As for exhaust, just straight pipe the b!tch. Then again, what do i know. Nothing, cause i've never attempted to do anything like this before

You're basically transferring your body to the drivetrain of another car. IMO this is a waste of time and resources. You should just get another car at this point. It'll never work as well as a factory one and you'll have absolute zero resale. So in the longer run it'll be more expensive no matter how you slice it.
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Old 02-05-2015, 09:40 PM   #17
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Yea, talking about going from FWD to AWD with 4Motion. And going from 5 cylinders with the 2.5L to 6 cylinders with the 3.6L.

I could be VERY wrong, but my thought process is to find a B6 Passat 3.6L 4Motion at an insurance auction or one that has been totaled out and to simply pilfer the parts from the Passat into my Jetta. Off the top of my head, pull the engine, trans, ECU and wiring harness out. It seems that that would be the easier part of the "project". I'd think the AWD conversion would be the biggest pain in the ass. As for exhaust, just straight pipe the b!tch. Then again, what do i know. Nothing, cause i've never attempted to do anything like this before
Lol, buy a new car. It's a mk5 jets jetta. No one gives a fvck about them. It'll be easier and cheaper to just buy a different car.
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Old 02-05-2015, 09:42 PM   #18
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Why would you spend that much effort to do that to a jetta when its still gonna suck when you finish?
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Old 02-06-2015, 05:29 AM   #19
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Sell your car and buy one that has what you're missing.

or

Accept what you have.




What you're describing is a pain in the ass.
Not to mention dumb as ****, and expensive as hell. If you don't have at least a 2 car garage with a **** ton of tools (and preferably a lift, not just an engine crane) don't even attempt it. Wouldn't hurt to have a hook up with a VW tech as well.

If you want to do a swap the best idea is to swap a car that is pre OBD-2, older than 1996. The inspection process is generally easier in most states for cars that are of this age, and you won't have as many problems. (even if in your current area the laws are relaxed as ****)
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Old 02-06-2015, 08:47 AM   #20
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Swapping only a motor. Not to bad.
I've pulled a 2.0 I4 before and replaced a piston and all the bearings. Not a swap but pulling and dropping motors aren't too bad.

Swapping an AT to a MT... do-able..
I'll do this swap when my AT dies.

Swapping motor plus converting FWD to AWD? you're nuts...

Just sell the car and get an AWD car then FI if it doesn't have enough power for you.
Or get an AWD car that is already FI and just go FBO and bigger turbo + tune.

If you want even more power, just build the motor and add more boost.
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