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VW/Audi 07K (2.5L 20V I5) Swap Thread

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Old 03-19-2014, 03:39 PM
  #91  
alxdgr8
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Originally Posted by V2Rocket_aka944 View Post
Would this be a good project to explore using an Audi transaxle and locating the clutch to the rear of the car?
What would you use for a flywheel and how would you mount it inside the bellhousing of a trans at the rear? I don't see how this would work without major fabrication and design. You'd have to perfectly balance a large mass at the end of the tiny TT shaft.
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Old 03-28-2014, 06:01 PM
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931 bellhousing inbound!
Also found a CAD file for the 944 bellhousing which would make that route an easier option if desired.
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Old 03-28-2014, 07:25 PM
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Good work! Keeping an eye on this...

Cheers,
Mike
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Old 04-02-2014, 03:45 AM
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Damn junkyard sent me a 944 bellhousing even though they said it was from an '80 931! Their overcharged shipping rate is non-refundable too!
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Old 04-02-2014, 09:52 AM
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Would it be doable to make a plate to adapt the 944 BH to the Audi motor?

...that would be a seller.
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Old 04-02-2014, 01:50 PM
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Originally Posted by V2Rocket_aka944 View Post
Would it be doable to make a plate to adapt the 944 BH to the Audi motor?

...that would be a seller.
It's possible and an option I might explore. The top portion of the 944 bellhousing has to be chopped off for sure. A 924 bellhousing looks like it's an option too and it places the starter forward like on longitudinal Audi engines. It just requires the hydraulic TOB since it's cable. If I can't find a 931 soon, I'm definitely thinking the 924 is the next route to explore. It would also require a spacer, but Audi made those OEM so that's not a problem. It actually would probably help line up a few more holes and could be welded to the bellhousing for extra strength.
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Old 04-02-2014, 06:59 PM
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Originally Posted by alxdgr8 View Post
It's possible and an option I might explore. The top portion of the 944 bellhousing has to be chopped off for sure. A 924 bellhousing looks like it's an option too and it places the starter forward like on longitudinal Audi engines. It just requires the hydraulic TOB since it's cable. If I can't find a 931 soon, I'm definitely thinking the 924 is the next route to explore. It would also require a spacer, but Audi made those OEM so that's not a problem. It actually would probably help line up a few more holes and could be welded to the bellhousing for extra strength.
http://www.motorgeek.com/viewtopic.php?f=6&t=46809
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Old 04-02-2014, 07:08 PM
  #98  
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Originally Posted by alxdgr8 View Post
I've already got an Audi with a swapped engine (32V 4.2L V8 which will eventually get replaced with an S8 40V 4.2L V8 + a turbo).

I want a better engine in my 968 and feel this is a way to do it and at a cheaper cost than building the 951 engine. Not to mention the aural pleasure of an I5 exhaust note.
A turbo-S8 engine in your 90 is going to be a monster! That is crazy. But, it's probably a monster already. So, I guess it should just be insane with a turbo V8.

Great plan with the I5. Porsche SHOULD have taken the I5T they massaged for Audi in the RS2 and put it in a few 968s. That would have been cool. So I'm looking forward to see your project progress, and good luck to you!

Originally Posted by alxdgr8 View Post
(we got a much watered down version of the S2 and no B4 wagon).
And what is this watered-down S2 you speak of?

Take care,
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Old 04-02-2014, 08:12 PM
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Originally Posted by FrenchToast View Post
A turbo-S8 engine in your 90 is going to be a monster! That is crazy. But, it's probably a monster already. So, I guess it should just be insane with a turbo V8.
Non-turbo power of the V8 is pretty fun and the sound is amazing, but it doesn't quite keep up with my friends with 400+whp I5's
Stock V8 is pretty comparable to a mildly modded I5 without turbo lag.

Originally Posted by FrenchToast View Post
And what is this watered-down S2 you speak of?
The '90-'91 Coupe Quattro that North America got. S2 body, but non-turbo 7A engine, crappy USA bumpers, and 4-lug wheels.
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Old 04-03-2014, 06:04 PM
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So, another idea I've had. If I go the route of an adapter plate with the 951 bellhousing, I can change the engine mounting angle as desired. VW/Audi generally do 15* in both longitudinal and transverse. There was a vanagon diesel that mounted an I4 at 50* and I've seen someone use that bellhousing to mount a 1.8T at 50* with no problems. The 944 is 30* and the 924 (2.0L Audi engine) was 40*. If I mounted the 07K at somewhere between 15* and 30*, I might be able to use the stock pan or at least be able to mod the steel lower portion and not touch the upper aluminum part. The pickup would need to be modified, but that's easy.
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Old 04-06-2014, 12:14 PM
  #101  
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Originally Posted by DLS View Post
i wonder what the size difference is between the audi Audi 07K vs volvo B5254 Engine?
In sweden it is alot easier to find a volvo B5254 Engine
I am currently installing the older 2.3 T5,


Steel adaptor with a 960 auto bellhousing


Block bolted to torque tube


Engine in with the 944 parked beside my 90 20v in same colour...
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Old 04-11-2014, 11:07 PM
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Thanks for the link to your thread Alex. Its a shame the timing of all of this. I just moved from Seattle about 6 months ago. I'll be watching and learning (from your mistakes!)
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Old 05-12-2014, 02:00 PM
  #103  
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No new progress, I've been working on getting the wiring harness for my Audi built so I can finish installing VEMS standalone. I did score a set of 18x8, 18x10 Speedline Alessios for $100 on craigslist They're chrome and need some work, but it'll be worth it to refinish them for sure. Will use them as street wheels since they aren't as wide as I'd like for the track. I've got a square 18x10 setup for that.

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Old 05-23-2014, 02:37 AM
  #104  
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Originally Posted by alxdgr8 View Post
No new progress, I've been working on getting the wiring harness for my Audi built so I can finish installing VEMS standalone.
Great project
wonder how many 944S2' will follow suite!
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Old 05-24-2014, 08:07 AM
  #105  
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Slightly off topic. European Car magazine has an article on someone swapping the modern I5 into an original ur Quattro coupe. I think they claimed 480 hp. Engine choice validated.

Article also said they started with a Golf block and built it up to handle turbo power.
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