924Board.org

tyfighter123 · Joined: 19 Jan 2010 Posts: 551 Location: Colorado

I have a 924S parts car and am wondering what all could be used or should be used from the newer 924S to put on my 924. So far I have done the 5lug conversion. Power windows and interior parts will be used as well. Can the radiator be used? The heater? Let me know. Thanks Guys
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Porsche 924 1977 N/A
Mustang GT/CS 2007
Porsche 924S 1987 (parts car)(cut up and recycled)
Porsche 911S 1976
Porsche 931 1980
Porsche 931 1980 (parts car)

Slam · Posted: Tue Mar 22, 2011 1:30 am Post subject:

Maybe the issue could be addressed in reverse - what CAN'T be used.

Off the top of my head, you can't use the engine and related ancillaries, clutch setup, radiator, heater (unless you're handy with fabbing things up), steering rack, transmission & torque tube. That's about it. Everything else will swap right over, but you're left with transferrring mostly body/interior stuff. What year 924?
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'88 944 Auto - may or may not resurrect

tyfighter123 · Joined: 19 Jan 2010 Posts: 551 Location: Colorado

Slam, its a 77'. I am planning on switching most of the interior over as its newer and in better condition. Would switching the heater be worth it?
_________________
Porsche 924 1977 N/A
Mustang GT/CS 2007
Porsche 924S 1987 (parts car)(cut up and recycled)
Porsche 911S 1976
Porsche 931 1980
Porsche 931 1980 (parts car)

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

Late VHAC system works much better, might be a tough swap, though.

I think you should go for it and document the project for the Board!
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Toofah King Bad

WeiBe (1987 924S 2.5t) - 931 S3

tyfighter123 · Joined: 19 Jan 2010 Posts: 551 Location: Colorado

Rasta, Im going to measure things and see if its a possible fit, ill keep it documented for the board. Anyone done this before?
_________________
Porsche 924 1977 N/A
Mustang GT/CS 2007
Porsche 924S 1987 (parts car)(cut up and recycled)
Porsche 911S 1976
Porsche 931 1980
Porsche 931 1980 (parts car)

fiat22turbo · Joined: 18 Jan 2006 Posts: 4040 Location: Portland, OR

Torque tube, transaxle, shift-linkage and axles will swap over with the appropriate clutch disc to mate the 924 NA engine to the 924S (944) splines. Luckily the 77 used an Audi 4-speed which is pretty similar to the Audi 5-speed.

The gearing may not be the greatest for the 2.0L, but a quick perusal of a 944 gear chart should tell you what you may end up with or what you may want to trade up to

Body parts can interchange, maybe see if the hatch on the S is in better shape than the 77? Some of the later cars received an electric trunk release, which might be nice to have along with a rear wiper (if so equipped)

Grab one of the bulb holders from the 924S taillight housings and wire in an extra brake light for the rear.

Depending on the year, I think the fuel tank might be larger on the 924S, so it might be a good upgrade for long road trips. There might be some fabrication needed for the different mounting points for the larger tank. I think Rasta did it on his 931. Not sure if the 77 will have the same ability to be upgraded as it might have been a running change in the chassis.

Good luck with the parts swap!
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Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose)

tyfighter123 · Joined: 19 Jan 2010 Posts: 551 Location: Colorado

Fiat22turbo, thanks for the info, so how hard, and what would need to be fabricated for the transaxle switch? Just a clutch kit for a 924S or do I need to make a bell housing?
_________________
Porsche 924 1977 N/A
Mustang GT/CS 2007
Porsche 924S 1987 (parts car)(cut up and recycled)
Porsche 911S 1976
Porsche 931 1980
Porsche 931 1980 (parts car)

tyfighter123 · Joined: 19 Jan 2010 Posts: 551 Location: Colorado

Rasta, do you think the tank would be a fairly easy switch?
_________________
Porsche 924 1977 N/A
Mustang GT/CS 2007
Porsche 924S 1987 (parts car)(cut up and recycled)
Porsche 911S 1976
Porsche 931 1980
Porsche 931 1980 (parts car)

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

Tank swapping is a PITA. However, 924S uses the early style steel tank, which is very likely the same size as the one you have.
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Toofah King Bad

WeiBe (1987 924S 2.5t) - 931 S3

Paul · Posted: Tue Mar 22, 2011 9:05 am Post subject:

fiat22turbo · Joined: 18 Jan 2006 Posts: 4040 Location: Portland, OR

Slam · Posted: Wed Mar 23, 2011 1:46 am Post subject:

I probably should have qualified the tranny/torque tube thing. Above is correct (although I haven't come across a part number for the right clutch disc) but the 924S torque tube and tranny use the larger drive shaft, which won't just bolt up to the 924 NA motor. That makes the swap a project rather than a weekend upgrade.
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'88 944 Auto - may or may not resurrect

tyfighter123 · Joined: 19 Jan 2010 Posts: 551 Location: Colorado

Ok I just got done taking the MC and Vacuum Booster out of the 924S for the brakes. Two questions:
1. can I just bend the existing lines to reach the MC and leave them routed as they are? Or do I need to change the configuration?
2. Can I use my existing Vacuum Booster or do I need to use the 924SVacuum Booster. If I need to use the 924S booster do I need to adapt anything or will it mount right up?

I also took out the heater box and will be looking to adapt it to fit the 77, thanks for the link Paul.

And finally is the correct clutch disc the only thing I would need to make the 924S trany and torque tube work? Or do I need to modify anything else?
_________________
Porsche 924 1977 N/A
Mustang GT/CS 2007
Porsche 924S 1987 (parts car)(cut up and recycled)
Porsche 911S 1976
Porsche 931 1980
Porsche 931 1980 (parts car)