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morghen

Joined: 21 Jan 2005 Posts: 9102 Location: Romania
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Posted: Fri Apr 17, 2009 3:54 pm Post subject: mixing 932 with 924NA |
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I've got a very good shape (now engineless) 932 wich i bought and drove home from the UK...i love that car and i hate to see it sit...so i've tossed in the old 924NA-CISed engine...i've just polished it today
Now...to make this work i need RHD headers as the RHD steering shaft colides with the LHD exhaust manifold. Found this part and going to have it soon.
That being sorted out...i'm moving to the clutch.
The 932 has a snailshell gearbox so a thick TT.
I still have the NA bellhousing but the 932 had hydraulic clutch and i want to keep it that way.
So...the plan is to use a 932 bellhousing with hydraulic clutch and throwout bearing but with a bronco2 clutch disk(or a used 931 disk if i'll find any) and the NA flywheel&pressure plate.
Anyone see any fault in this plan?
i'm afraid that the bronco disk/931 disk wont be compatible with the NA flywheel and pressure plate.
Any toughts ? _________________ Supercharger and EFI kits
https://www.the924.com
Last edited by morghen on Fri Apr 17, 2009 6:43 pm; edited 1 time in total |
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Raceboy

Joined: 01 Mar 2004 Posts: 2327 Location: Estonia, Europe
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Posted: Fri Apr 17, 2009 4:56 pm Post subject: |
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You can't use 931 disc with NA flywheel and pressure plate because 931 disc is 225 mm, NA clutch is 215mm. Ford Mustang disc will work. _________________ '83 924 2.6 16v Turbo, 470hp
'67 911 2.4S hotrod
'90 944 S2 Cabriolet
'78 924 Carrera GT replica
'84 928 S, sold
'91 944 S2, sold
'82 924S/931 "Gulf", sold
'84 924, turbocharged, sold.
http://www.facebook.com/vemsporsche |
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Rasta Monsta

Joined: 12 Jul 2006 Posts: 11733 Location: PacNW
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Posted: Fri Apr 17, 2009 4:56 pm Post subject: Re: mixing 932 with 924NA |
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| morghen wrote: |  |
Stupid imageshack.
I don't think your clutch plan will work. _________________ Toofah King Bad
- WeiBe (1987 924S 2.5t) - 931 S3
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morghen

Joined: 21 Jan 2005 Posts: 9102 Location: Romania
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Posted: Fri Apr 17, 2009 5:11 pm Post subject: |
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allright, thanks Raceboy.
now the next thing i'm woried about is the hydraulic throwout bearing working together with the NA pressure plate.
Anyone?
whats wrong with imageshag(k) ? it works for me. _________________ Supercharger and EFI kits
https://www.the924.com |
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RC

Joined: 25 Mar 2007 Posts: 2637 Location: Australia
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Posted: Fri Apr 17, 2009 8:57 pm Post subject: Re: mixing 932 with 924NA |
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| morghen wrote: |
Now...to make this work i need RHD headers as the RHD steering shaft colides with the LHD exhaust manifold. Found this part and going to have it soon.
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Unable to find RHD headers anywhere, so custom made some. Interested to know who makes them or where you got yours? This question pops up every now and then so sure other Oz and UK guys are too.
No idea about the clutch though. |
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morghen

Joined: 21 Jan 2005 Posts: 9102 Location: Romania
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Posted: Fri Apr 17, 2009 9:03 pm Post subject: |
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i've found a stock RHD manifold..thats all. Still looking for the RHD downpipe. _________________ Supercharger and EFI kits
https://www.the924.com |
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huckster

Joined: 22 Dec 2006 Posts: 115 Location: Burnaby B.C.
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Posted: Mon Apr 20, 2009 4:50 am Post subject: |
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Intresting problem. Could you change the flyweel to a 931. _________________ 77.5 project car have never driven. burgundy
79 parts car sea foam. blue new clutch and shifter bushings
79 driver yellow new shocks water pump shifter bushings
96 ford escort sw |
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morghen

Joined: 21 Jan 2005 Posts: 9102 Location: Romania
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Posted: Mon Apr 20, 2009 5:22 am Post subject: |
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changing the flywheel wouldnt be a problem...its just that its very heavy and sending it by mail would cost a fortune.
i've just found another issue regarding this mixup.
plan is to use a 931 bellhousing with 931 clutch system but with ford mustang clutch disk to fit the 924NA flywheel.
issue 1: will the NA pressure plate corectly mate with the 931 bearing?
issue 2: will the 931/944 starter motor mate and corectly operate with the NA flywheel? _________________ Supercharger and EFI kits
https://www.the924.com |
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Joes924Racer

Joined: 03 Nov 2002 Posts: 11964 Location: Oregon, Denver Colorado native!
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Posted: Mon Apr 20, 2009 6:24 am Post subject: |
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more pictures plese. i only located the one. _________________ 1979 porsche 924 Na
1980 porsche Turbo 931GT Replica
Have u ever driven a turbo. |
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john h

Joined: 06 Nov 2002 Posts: 827 Location: Wellington New Zealand
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Posted: Mon Apr 20, 2009 9:18 pm Post subject: |
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| morghen wrote: | | issue 2: will the 931/944 starter motor mate and corectly operate with the NA flywheel? |
in a word Nope.
The 931 ring gear for the starter is mounted on the clutch pressure plate assembly (or it on mine) so unless youhave a931 presure plate and ring it won't work. _________________ Remember a Porsche is not just for Christmas,
if you take it to pieces slowly it can provide anguish all year long! |
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morghen

Joined: 21 Jan 2005 Posts: 9102 Location: Romania
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Posted: Tue Apr 21, 2009 5:06 pm Post subject: |
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allright...so its one of the two options:
1. use the complete 931/932 clutch assembly...including 931 flywheel.
2. use the complete NA clutch...and convert to cable operated clutch. _________________ Supercharger and EFI kits
https://www.the924.com |
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Rich H
Joined: 10 Jun 2007 Posts: 2665 Location: Preston, Lancs, UK
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Posted: Tue Apr 21, 2009 5:30 pm Post subject: |
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Will the N/A clutch fit the 932 TT? I thought it had a thicker driveshaft?
I would think that 932 clutch, hydraulics, flywheel and starter would be the way to go. _________________ 1994 Lotus Esprit S4 - Work in progress...
1980 Porsche 924 S2 DITC Turbo - Original spec
1978 Homo-Sapiens - Tired spec
1953 Landrover S1 - Pensioner Spec |
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morghen

Joined: 21 Jan 2005 Posts: 9102 Location: Romania
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Posted: Tue Apr 21, 2009 6:47 pm Post subject: |
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Rich, the NA clutch wont fit the 931 TT but a certain ford mustang disk will fit the NA flywheel&pressure plate and the 931 TT.
PS: Rich...could you please send me some pics of that exhaust manifold you said you have? thanks. _________________ Supercharger and EFI kits
https://www.the924.com |
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Rich H
Joined: 10 Jun 2007 Posts: 2665 Location: Preston, Lancs, UK
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Posted: Tue Apr 21, 2009 9:09 pm Post subject: |
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Oh yeah.. I tripped over it only yesterday!
Please feel free to harass me until I remember! _________________ 1994 Lotus Esprit S4 - Work in progress...
1980 Porsche 924 S2 DITC Turbo - Original spec
1978 Homo-Sapiens - Tired spec
1953 Landrover S1 - Pensioner Spec |
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