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What is the difference between...

 
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skytrooper  



Joined: 29 Aug 2007
Posts: 461
Location: Canandaigua, NY

PostPosted: Thu Oct 25, 2007 8:13 am    Post subject: What is the difference between... Reply with quote

a 1981 931 and a 1987 924S. I realize of course that the 931 is a 924 turbo, but are there any other significant details that I should know ?

The reason I ask is, I am pretty new to the 924...and I have a 924S that I just finished bringing back from a 10 year nap. There is a 931 that I have my eye on, and might purchase.
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Smoothie  



Joined: 01 Jan 2003
Posts: 8032
Location: DE (the one near MD, PA, NJ)

PostPosted: Thu Oct 25, 2007 8:57 am    Post subject: Reply with quote

Have a l:oky here - http://www.924board.org/viewtopic.php?t=20795

Basic differences are engine, suspension, steering, front crossmember, and hvac system. The '81 931 has the 2.0L engine with turbo added and other engine parts changed to make it the turbo vers. It also got the earlier '76-'82.5 hvac system, and a steel front crossmember.
The drivetrain would be roughly the same between '81 931 and '87 924S with Audi transaxles in both, same shifter, same torque tube and 25mm driveshaft, same hydraulic clutch system from pedal to slave cylinder (,but different clutch discs and as far as I know different pressure plates).
924S got power steering, 931 is all manual arm power.
I think the 924S got the 944 brake master cylinder and line routing - that would mean it's split front-rear instead of diagonally like the 924NA-931, and the 924S-944 MC is stepped with 19mm and 23mm diameters, while the 931's MC is all 23mm.
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"..it's made in Germany. You know the Germans always make good stuff."


'82 924T, US version, dark green metallic, 5 speed Audi 016G gearbox
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skytrooper  



Joined: 29 Aug 2007
Posts: 461
Location: Canandaigua, NY

PostPosted: Fri Oct 26, 2007 4:05 am    Post subject: Reply with quote

That shortcut helps answer a lot of my questions...thanks Smoothie !!

Would a tow dolly work or would it be best to trailer it home ?
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Paul  



Joined: 02 Nov 2002
Posts: 9491
Location: Southeast Wisconsin

PostPosted: Fri Oct 26, 2007 9:09 am    Post subject: Reply with quote

Put the front wheels on a tow dolly and tow away...
_________________
White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy.
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Rasta Monsta  



Joined: 12 Jul 2006
Posts: 11733
Location: PacNW

PostPosted: Fri Oct 26, 2007 10:42 am    Post subject: Reply with quote

What, Paul, no vibrating beast?



We were thinking of you at Laguna. . .
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  • WeiBe (1987 924S 2.5t) - 931 S3
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Paul  



Joined: 02 Nov 2002
Posts: 9491
Location: Southeast Wisconsin

PostPosted: Fri Oct 26, 2007 10:56 am    Post subject: Reply with quote

It's in the link that Smoothie posted....

We'll be at Daytona next weekend.
_________________
White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy.
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