R.J.

Hiya fellas. I've just bought a complete rear ended 1992 968 Tiptronic which will serve as a donor for my 944 S3 engine transplant project in to my 1988 944 S. So...what should I grab besides the obvious? I have a limited time to store this car so I got to strip it fast and get it out of my 'borrowed' garage. So, from researching these forums I take it I'll need the DME harness (any problem with it being from a tipper?) the DME itself, the throttle cable, the complete exhaust, ...anything else I should grab like other harnesses or the cruise control throttle cable...? Please remember this is a tiptronic car if it makes any difference. Thanks for any info guys!

alxdgr8

Paging Lemming...he's got a 924S3 so he would be the most help.

V2Rocket

if its being parted would you maybe sell the front bumper cover?

Airflite40

check out http://www.944s3.com/ it should have all the answers

968gene

Interior color?

Chads996

Doing this very same thing into an S2. Needed items:

- 968 DME (for a manual car)
- 968 engine harness
- 944S2 flywheel
- 944S2 crank pulley (harmonic balancer)
- 968 throttle cable
- 968 oil cooler
- Modified filter intake (retain the 968 MAF)

If you choose to use an early transmission:

- 944S2 bell housing
- 944S2 crank trigger bracket
- 944 turbo or S2 torque tube

That'll do it for parts. But there are also some electrical splicing that will need to be done on the "S" chassis to get the 968 motor running properly.

C.

R.J.

Didn't realize the DME had to be for a manual (mines a tipper...) I know the DME engine harnesses are different (per PET) between tip and manual so I guess that's gonna be a problem? Hmmm, first I've heard of the S2 crank pulley (wouldn't my 'S' be the same?) Are you sure because my parts list is getting bigger by the minute!?

Jay W

Hey if you want to sell the external automatic transmission cooler it is in the drivers side bumper opposite the oil cooler. I could use that, mine leaks. The external oil cooler is in the bumper on the passenger side, you need that for the engine.

Jay W

oh and a drivers side headlight too...

Chads996

Yes, I believe the "S" flywheel will work.

The crank pulley from the S2 is actually a harmonic balancer with that helps the 3L motors maintain and resonant stability when using a standard flywheel. The 968 did not have this balancer due to the use of a dual mass flywheel.

Good luck.

C.

R.J.

Makes sense. I'll swap it out with my 'S' crank pulley when doing the belts/waterpump. Do I need to as a matter of course replace the variocam chain tensioner and/or pads like I do on my 'S' cam chain tensioner?

Mark944na86

Converting an S2 -> "S3" makes sense to me, but trying the same thing on an earlier NA doesn't. Perhaps this is a good time to sit back and reassess before pouring too many resources into this project? Just 2c worth.

R.J.

Hey, I'm a reasonable guy and when someone throws logic at me I'll give it unemotional consideration. I gotta say though, wouldn't converting an 'S' to an 'S3' make MORE sense than converting an 'S2' to an 'S3', why?...because the USABLE power difference between an 'S2' and an 'S3' is minimal but between an 'S' and a 968 powered 'S3' is downright massive. My 'S' is already fitted with M030 suspension so the sticky stuff is the same, I've got airbags, ABS, and late offset like an 'S2' and I have turbo front end on my 'S' so if you need a pretty face I've got it. So please tell me what I'm missing! If it makes sense than I'll pull the plug but..IT'S GOTTA MAKE SENSE!

Mark944na86

Sure. Basically, the arguments against are the same as the standard response to "Can I turbo my NA?" The answer is: Of course you _can_, but it really doesn't make any economic sense... and here's why...

So I didn't explicitly revisit all that well-trodden ground, simply because I assumed you'd be well aware of the problems with adding all that additional power to a drive train/suspension/braking system that wasn't designed for it. Having said that, of course people still go ahead and do these things anyway -- some people obvioulsy like a project and a challenge.

So I was just saying that it never made sense to _me_ to drop a turbo or 3.0L or V8 or whatever into an NA earlier than an S2, whereas I can fully understand someone putting a bigger engine into an S2.

So really, just a 2c thing. Hope it all works out well for you if you decide to go ahead!

R.J.

[QUOTE=So I didn't explicitly revisit all that well-trodden ground, simply because I assumed you'd be well aware of the problems with adding all that additional power to a drive train/suspension/braking system that wasn't designed for it. [/QUOTE]

Perhaps I should have been more specific myself. I have a full M030 suspension from an '89 Turbo 'S'. This includes the Koni suspension with front coil-overs and 'big blacks' More accurately I'd call them medium black brakes though. 17" Cup 1's round it all out. I've got the sticky stuff, the pretty snout and the creature comforts and "safety" kit from the later models...I just want more oomph. Anyways, you've given me food for thought.