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Join Date: Sep 2004
Posts: 143
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wheel fitment
Hi all I have some 17" ROH wheels I was using for intermediate rains they
measure 8.5 and 7.5 with a backspace of 6.5 and 6" I was using them with spacers on a 86 3.2 . What car do you think they were designed to fit? I tryed them on a 930 but the sit way inside the fenders I was thinking 993 or 964. the reason I ask is so that I can sell them . Thanks Palmer |
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10-08-2007, 12:30 PM
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Location: SoFLA
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Is there an "ET" number stamped inside? That would answer a lot of questions.
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10-08-2007, 12:37 PM
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No there is no ET size stamped on the wheels. Palmer
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10-08-2007, 01:02 PM
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Location: Langley,B.C.
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According to your backspace numbers the 8.5 has a 44mm offset (+/-) and the 7.5 has a 57mm offset (+/-). These would probably fit a 993 but are pretty narrow.... They may also fit a 87 and later 944,951,968 etc and possible the 964. Not sure on the rear fitment but the fronts should fit.
Cheers
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Turn3 Autosport- Full Service and Race Prep www.turn3autosport.com 997 S 4.0, Cayman S 3.8, Cayenne Turbo, Macan Turbo, 69 911, Mini R53 JCW , RADICAL SR3 |
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10-08-2007, 02:22 PM
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Quote:
Are you reporting overall width or rim width(aka bead width)?  also was backspace measured as indicated in the diagram?
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Bill Verburg '76 Carrera 3.6RS(nee C3/hotrod), '95 993RS/CS(clone) | Pelican Home |Rennlist Wheels |Rennlist Brakes | |
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10-08-2007, 04:07 PM
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Well, if that is overall width (which I had not considered) the rears are 69.8mm (+/-) and the fronts are 69.8mm (+/-).....
Never heard of anyone building/buying Porsche wheels that are 6.5/7.5 in width though... Cheers
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Turn3 Autosport- Full Service and Race Prep www.turn3autosport.com 997 S 4.0, Cayman S 3.8, Cayenne Turbo, Macan Turbo, 69 911, Mini R53 JCW , RADICAL SR3 |
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10-08-2007, 04:47 PM
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The wheels have (17"J 8.5" )cast into the rears and (17" J 7.5) into the fronts. I measured the back space with a strait edge witch was 6.5" and 6" Thanks Palmer
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10-09-2007, 12:44 PM
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w/o knowing the flange width, which I estimated to be .5" I get +45ET for both wheels
If the flange is smaller the ET goes up, but only a very small amount. I've got no idea what they might fit other than an SC/Carrera w/ spacers. 964 wants ~55mmET which you can't get out of a 45 w/ spacers
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Bill Verburg '76 Carrera 3.6RS(nee C3/hotrod), '95 993RS/CS(clone) | Pelican Home |Rennlist Wheels |Rennlist Brakes | |
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10-09-2007, 01:00 PM
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Yes, you are correct, I messed up my math on the smaller wheel....
Cheers
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Turn3 Autosport- Full Service and Race Prep www.turn3autosport.com 997 S 4.0, Cayman S 3.8, Cayenne Turbo, Macan Turbo, 69 911, Mini R53 JCW , RADICAL SR3 |
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10-09-2007, 01:07 PM
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Bill I think the flange is .5 I was using them with 1" spacers on the rear and .750 on the front
with long studds with 255/225 tires sorry to be a pia I just want to sell them to the right person.Palmer |
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10-09-2007, 03:11 PM
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Schleprock
Join Date: Sep 2000
Location: Frankfort IL USA
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My guess is 928 fitment. The ROH ZR wheels seemed to be popular for 928s from what i've seen.
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Kevin L '86 Carrera "Larry" |
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10-09-2007, 03:26 PM
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1976 Porsche Carrera 3.0
1995 Porsche 993 Carrera Coupe
