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The Green 931 -my first transaxle ever (resurrection thread)
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Carrera RSR  



Joined: 08 Jan 2010
Posts: 2194
Location: Somerset, UK

PostPosted: Sun Nov 08, 2020 8:55 pm    Post subject: Reply with quote

That’s the early set up. Chassis rail mounted as on my turbo. My race shell has the later version as per GT and 944’s
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1980 931 - forged pistons, Piper cam, K27/26 3257 6.10 hybrid turbo, 951 FMIC, custom intake, Mittelmotor dizzy & cam pulley, H&S exhaust, GAZ Gold, Fuch'ed, Quaife
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Cdric  



Joined: 27 Aug 2004
Posts: 2114
Location: Sweden

PostPosted: Sun Nov 08, 2020 10:09 pm    Post subject: Reply with quote

I helped wrench a bit on a 82 931,it had both the later air blower system and the late sway bar design.

You are probably better of making some adapting yourself, the 944 version is crappy with the flimsy brackets.
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kondzi  



Joined: 02 Jul 2018
Posts: 143
Location: MZ/Poland/EU

PostPosted: Thu Dec 17, 2020 6:57 am    Post subject: Reply with quote

Put this car to the freezer until spring. My 1st thing to do is rear torsion bars change. 300lbs spring in the front coilovers and stock on the rear is a no go. What diameter should I go to match fronts? I'm used to do setups with either torsion bars F/R or coilovers F/R but not a mix
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Konrad
'89 951 US
'88 Mustang 5.0 LX Convertible (factory specs)
'84 911 Carrera 3.2 RoW (factory specs)
'81 931 RoW (TBD)
'81 Ford Capri 2.8i (factory specs)
'79 Ford Capri 2.9 (heavily modded)
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Cdric  



Joined: 27 Aug 2004
Posts: 2114
Location: Sweden

PostPosted: Thu Dec 17, 2020 7:25 am    Post subject: Reply with quote

My 28mm rear bars i calculated to match 350/60 N/mm springs. So without recalculating i would guess around 26-27, i bought the cheap vw ones.

But It depends on many things, what anti roll bars and what tyre widths you use for example.
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kondzi  



Joined: 02 Jul 2018
Posts: 143
Location: MZ/Poland/EU

PostPosted: Sat Dec 19, 2020 7:11 am    Post subject: Reply with quote

Thanks Cedric, I will not chase 10ths of second on a lap, so a guesstimate works fine with me I have 19mm adjustable ARB at rear from 968CS. Wheels are 7/17, tires 225/50 all corners.
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Konrad
'89 951 US
'88 Mustang 5.0 LX Convertible (factory specs)
'84 911 Carrera 3.2 RoW (factory specs)
'81 931 RoW (TBD)
'81 Ford Capri 2.8i (factory specs)
'79 Ford Capri 2.9 (heavily modded)
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