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Stock spacer size MY80

 
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1980-931  



Joined: 23 Jun 2018
Posts: 17
Location: New England

PostPosted: Sat Jun 23, 2018 11:39 am    Post subject: Stock spacer size MY80 Reply with quote

Hello all, I just got a MY80 931 with the stock suspension and brakes (4 lug). What is the stock wheel spacer size? There is a spacer up front near 25mm so the tires fill the fender nice. However the rears step in a lot and have no spacer.
Thanks!
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924RACR  



Joined: 29 Jul 2001
Posts: 8094
Location: Royal Oak, MI, USA

PostPosted: Sat Jun 23, 2018 10:28 pm    Post subject: Reply with quote

Not stock, but we matched that with two spacers stacked (required extra-long wheel studs) in the rear on our ITB racecar...
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Vaughan Scott
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'79 924 #77 ITB racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype
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1980-931  



Joined: 23 Jun 2018
Posts: 17
Location: New England

PostPosted: Sun Jun 24, 2018 11:38 am    Post subject: Reply with quote

Were spacers standard on these cars or added? I'm wondering if the rearrange spacer was removed or the front added?
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924RACR  



Joined: 29 Jul 2001
Posts: 8094
Location: Royal Oak, MI, USA

PostPosted: Sun Jun 24, 2018 11:03 pm    Post subject: Reply with quote

Stock was to have only one spacer pair in the rear... so yeah, looks like maybe yours were rearranged...
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Vaughan Scott
Webmeister
'79 924 #77 ITB racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype
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1980-931  



Joined: 23 Jun 2018
Posts: 17
Location: New England

PostPosted: Sat Jul 07, 2018 9:40 am    Post subject: Reply with quote

Does anyone have any tips on the stock spacers? My car has no spacers at all. Fronts are at the fender edge. Rears need 20-25mm spacers. These are stock spiderwebs. Seems like I need 65-70mm rear lug bolts with the spacers and the biggest I have found are 60mm. Between spacers and new lug bolts it seems cheaper to find some wheels with a better offset.
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Carrera RSR  



Joined: 08 Jan 2010
Posts: 1545
Location: Somerset, UK

PostPosted: Sat Jul 07, 2018 5:32 pm    Post subject: Reply with quote

Sounds like the spacers have been put on the wrong end of the car? Front should have no spacer, the rear should take the 21mm
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1980 931 - forged pistons, Piper cam, CGT turbo, 951 ducted FMIC, custom intake, Mittelmotor dizzy & cam pulley, H&S exhaust, GAZ Gold, Fuch'ed, Quaife LSD
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1980-931  



Joined: 23 Jun 2018
Posts: 17
Location: New England

PostPosted: Sun Jul 08, 2018 12:07 am    Post subject: Reply with quote

Thank you, I was so mistaken at first. There is no spacer up front. I have read back through years of threads and it seems that the 4 lug drum never came with a factory spacer. So the option is something like 70mm bolts which seems sketchy or switch to thread in studs and wheel bolts. I have found a 20mm 57.1 hub spacer set though I think gap wise could go up to 30mm.

Seemingly might be better to get a second set of wheels with more appropriate 30mm offset and put those on. Through all the "wheel" threads though I'm not sure how people are dealing with the fact the fronts are already out at their limit.
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