924Board.org

Robert Hooper · Joined: 15 Mar 2004 Posts: 70 Location: Christchurch NZ

Does anyone know :

The torsion bar specs for - ie spring rate and thickness

A - 1980 931 (s1)
B - 1981 924

I need to know if it is worth changing over the torsion bars from the 931 to the 924....

Cheers

Rob
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1982 924 Race Car
1981 931 Road Car

924RACR · Posted: Wed Nov 10, 2004 6:17 am Post subject:

Not worth the hassle, even if they are different. Coilovers are much easier; if you do need to change the torsion bars, get something much bigger. For racing, well, what kind do you plan? I'm running the biggest off-the-shelf ones available (30mm), and still need more.
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Vaughan Scott
Webmeister
'79 924 #77 SCCA H Prod racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype

AppleBit · Joined: 16 Nov 2002 Posts: 1516 Location: Minneapolis, MN

Coil-overs on the rear? You know how to convert over? I want to delete the rear torsion setup completely and have all height adjustable via a coil-over setup...
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Classic British Sports Car Restoration v6 + v8 Engine Conversion Swaps

Porsche 924 Wide Body LS1 Corvette 500 Horsepower Engine

924RACR · Posted: Wed Nov 10, 2004 11:27 am Post subject:

It's only money.
http://www.kokeln.com/products/951_8689/rear_suspension.shtml

Ah, these guys have it for only $2099.
http://www.fast44.com/suspension.html

_________________
Vaughan Scott
Webmeister
'79 924 #77 SCCA H Prod racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype

AppleBit · Joined: 16 Nov 2002 Posts: 1516 Location: Minneapolis, MN

ok, I thought you were talking something that you might have done. I am going to do this at some point... but got to get an engine in the car that works first.
_________________
Classic British Sports Car Restoration v6 + v8 Engine Conversion Swaps

Porsche 924 Wide Body LS1 Corvette 500 Horsepower Engine

Lizard · Posted: Wed Nov 10, 2004 12:52 pm Post subject:

I am thinking about trying something like this but I would be fabbing from scratch.
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3 928s,

924RACR · Posted: Thu Nov 11, 2004 12:51 am Post subject:

Coilovers can be added as additional spring rate to a car that still has torsion bars. I don't do it to my current race car as they are illegal for IT.
_________________
Vaughan Scott
Webmeister
'79 924 #77 SCCA H Prod racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype