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Khal
Joined: 26 Sep 2003 Posts: 4869 Location: Sunny and lovely interior BC, Canada
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Posted: Tue Aug 03, 2004 8:18 am Post subject: Brake package... |
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Did all '81 Turbo's come with the five-bolt hubs? (ROW specifically)
Mine has five-bolt hubs but I know it's had a brake conversion. My option codes do not list the "M471" (?) option.
Just wondering if it might have originally had four-bolt hubs?
Also, I don't think mine are the standard brakes. The PO mentioned that it had brakes off another Porsche -could've sworn he said 911 but it might've been another. It was a long time ago, and although it sounded impressive at the time, I've since completely forgotten. The discs are very large (for a car of that age anyway, I know most modern performance cars have monster rotors) and the calipers have quick-release pads (like a racing car), is this normal for M471 conversion?
I do know the car used to be raced. Does anyone know what brakes off other Porsche models would fit my 924? I don't think the suspension has been modified greatly, if at all, except for better shocks and springs and it has been lowered. I think it's relatively normal because I bent a rear suspension arm and popped an axle (long story) but the mechanic got replacement parts off a normal 924 (Turbo or NA, not sure).
Any ideas? _________________ '80 924 Turbo |
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CMXXXI
Joined: 05 Nov 2002 Posts: 1939 Location: Vicksburg, MS
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Posted: Wed Aug 04, 2004 3:13 am Post subject: |
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No, not all 931 came with the 5-bolt brake setup, ROW or US. I think they became standard at some point (?81?82?) but don't know for sure. The brakes you describe "sound different" from the stock M471 setup though. I don't have my Turbo supplement here to check the specs on the brake components... _________________ '79 Eurospec 931 |
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Lizard
Joined: 03 Nov 2002 Posts: 9364 Location: Abbotsford BC. Canada
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Posted: Wed Aug 04, 2004 1:00 pm Post subject: |
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the M471 was optional equip on 79 and 80, in 81 it came standard on Turbo models, any chance of getting of photo of your brakes.
speaking of which I am going to start mounting the 928 brakes on my project car soon, cant wait _________________ 3 928s, |
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CMXXXI
Joined: 05 Nov 2002 Posts: 1939 Location: Vicksburg, MS
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Posted: Wed Aug 04, 2004 11:11 pm Post subject: |
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I looked up the brake specs for you last night, here they are:
Stock front discs/rear drums:
Disc diameter: 257mm
Disc thickness: 13mm
M471 specs:
Diameter (F/R): 282.5/289.0
Thickness (F/R): 20.5/20.0 _________________ '79 Eurospec 931 |
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