924Board.org

Raceboy · Joined: 01 Mar 2004 Posts: 2326 Location: Estonia, Europe

Hi guys!

Have any of you done some upgrade from stock 924 clutch?

I know Spec makes upgrade clutch for na but if possible, I'd rather not buy and expensive clutch and wait for it till summer ends as I'm going to install new 2.5 16v turbo engine on it

Any ideas, experience, speculations, hypothesis'es?
_________________
'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

9xx · Joined: 18 Jun 2006 Posts: 627 Location: Jarvenpaa, Finland

2.5 16V Turbo? What kind of engine is that, 944 S engine? (too high compression?)
_________________
Mikko

All gone: 931 '82 Alpine White, original option "220" G31 with LSD + 3 x 944

Raceboy · Joined: 01 Mar 2004 Posts: 2326 Location: Estonia, Europe

This is 951 shortblock and 944 S 16v head. Right now in progress, new stainless valves, guides, bearings etc.
_________________
'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

bass gt · Posted: Wed Jun 27, 2007 4:52 am Post subject:

Raceboy,

The Sachs 911 sport clutch fits perfectly. The friction disc will not, but AP Racing made me a 6 paddle Cerametallic disc.

Steve

Raceboy · Joined: 01 Mar 2004 Posts: 2326 Location: Estonia, Europe

For 2.5 liter engine there's lots of options, but I need stronger pressure plate for 2.0 NA engine that has original 20mm drive shaft and clutch assembly...
_________________
'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

bass gt · Posted: Wed Jun 27, 2007 5:32 am Post subject:

Raceboy,

Sorry, i didn't read the NA bit

However, if you speak to AP in the UK, they will make you any disc. But i think the 911 pressure plate will still work, as long as the flywheel bolt pattern/standoff iss the same.

Steve

Raceboy · Joined: 01 Mar 2004 Posts: 2326 Location: Estonia, Europe

It's the clutch working principle that is different between NA and 931/911/944 etc.
And 911 clutch is 225mm, NA clutch is 215mm.

Disc is not the problem, we have a shop who installs Kevlar liners to disc and it will hold up very well, proven times and times already.

It's the pressure plate that is kinda exotic

_________________
'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

endwrench · Joined: 07 Dec 2002 Posts: 1631 Location: Victor, Montana

You knew I was going to post this

http://www.924board.org/viewtopic.php?t=22052

Getting a little slippy now?

Todd
_________________
'79 924NA. Rebuilt 9.5:1, MSDS header, Mega Squirt Injection, MJLJ-EDIS Ignition, 1.6L Whipple Charger and Intercooler, 10lbs Boost, 944 Trans, Custom HD Clutch.
"simsport" said....superchargers are better than turbos its official!....

Raceboy · Joined: 01 Mar 2004 Posts: 2326 Location: Estonia, Europe

Hi Todd, does this clutch work then: http://cgi.ebay.com/ebaymotors/EXEDY-88-92-FORD-RANGER-2-3L-2-9L-3-0L-NEW-Clutch-Kit_W0QQitemZ150136831863QQihZ005QQcategoryZ33730QQcmdZViewItem ?
_________________
'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

endwrench · Joined: 07 Dec 2002 Posts: 1631 Location: Victor, Montana

That will work but the realease bearing doesn't look right. That looks like a standard fork style and you will need the hydraulic type.

Also keep in mind the disc wont work either unless you plan to switch to the 951 tube and tranny at the same time.

If you plan to use the stock tube then I think you can go to a 225mm disc from a Dodge D50 pick-up. Not sure on that though. I think the Vanagon used one too.

Todd
_________________
'79 924NA. Rebuilt 9.5:1, MSDS header, Mega Squirt Injection, MJLJ-EDIS Ignition, 1.6L Whipple Charger and Intercooler, 10lbs Boost, 944 Trans, Custom HD Clutch.
"simsport" said....superchargers are better than turbos its official!....

NBRettie18 · Posted: Mon Jul 02, 2007 11:29 am Post subject:

What about this?

http://cgi.ebay.com/ebaymotors/CLUTCH-SET-80-85-PORSCHE-924_W0QQitemZ130020298462QQihZ003QQcategoryZ33730QQrdZ1QQssPageNameZWD1VQQcmdZViewItem
_________________
1987 924S - MO30 30/19 - Yellows all around

Raceboy · Joined: 01 Mar 2004 Posts: 2326 Location: Estonia, Europe

This is just a stock clutch set as I understand and is not meant to withstand higher torque.
_________________
'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

NBRettie18 · Posted: Tue Jul 03, 2007 5:53 am Post subject:

did the 924's have the rubber clutch or was that just the 944 2.5 engine? cause my S had the rubber disk clutch and therefore it would be an upgrade, however slight, but i might be wrong, i seem to remember the 924 haynes manual or the 944 (i have both because of the 924S) had a rubber clutch disk and the other one wasn't.
_________________
1987 924S - MO30 30/19 - Yellows all around

Lizard · Posted: Tue Jul 03, 2007 9:11 am Post subject:

the 944s got the rubber disc, the 924 never had that problem,

the only thing I can think of is to get a mustang clutch pressure plate that is rated for a higher hold and disassemble the two of them and put the higher pressure springs into the 924 pressure plate.
_________________
3 928s,

Raceboy · Joined: 01 Mar 2004 Posts: 2326 Location: Estonia, Europe