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another round please
Join Date: Sep 2004
Location: Carmel In.
Posts: 4,452
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newbie asks what mm is 18" turbo twist
Ive got some 18" turbo twist wheels off of a 996 or 993 on my 86 911. I run 2 inch adapters on front, and 3 inch on the rear to get the tires out to fill the wheel well. I run 295/30/18 on the rear, and 225/40/18 on the front. Does anyone know what MM offset these are? The reason I'm asking is I'm looking at another set of wheels to buy, and I dont want to buy another set of adapters for the new ones. I see all types of offsets for aftermarket wheels, 45, 55,63, etc. I would have these new wheels shipped in from the west coast, so I dont want to make any mistakes. Can anyone compute for me what offset I have. I think the fronts are 18-8/1/2 and 18-10/1/2 or 11 on the rear. Thanks for any reply
 
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04-05-2005, 03:18 PM
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Registered
Join Date: Nov 2003
Location: Ags, Mx or McAllen, TX
Posts: 2,792
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what ET do your wheels have?
I think you need 23.3mm fornt and 15mm for rears w/17"s wheels fitments Can you post some pics. of ypur car.
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X/A Last edited by Yellowbird RS; 04-05-2005 at 03:34 PM.. |
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04-05-2005, 03:26 PM
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another round please
Join Date: Sep 2004
Location: Carmel In.
Posts: 4,452
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Here's pic of my car, kind of a bad one, but a new camera is on the way. [img] I guess Im kind of in the dark as to the MM offset. Thankshttp://forums.pelicanparts.com/uploads5/bikeand+porsche0031112750664.jpg[/img]
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04-05-2005, 05:25 PM
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another round please
Join Date: Sep 2004
Location: Carmel In.
Posts: 4,452
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lets try again
here's a pic, again?
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04-05-2005, 05:33 PM
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Registered
Join Date: Nov 2003
Location: Ags, Mx or McAllen, TX
Posts: 2,792
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OK you slantnose have a turbo body so you need a diferent ET, you can see the ET of your wheels just next to air valve and then substract the 2" (50.8mm) front and 3" (76.2mm) rear the resault is your actual ET
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04-05-2005, 06:02 PM
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Join Date: Nov 2003
Location: Ags, Mx or McAllen, TX
Posts: 2,792
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nice ccar!
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04-05-2005, 06:03 PM
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Your wheels appear to be 996 18" Turbo Twists. Hollow spokes if they are from a Turbo, solid spoke if they are from a C4S.
Look near the valve stem, the offset in mm, and the width in inches should be marked. If that fails, take a look at the inside of the wheels, the numbers may be there. My guess is 18x8, 50mm offset Front, 18x11, 45mm offset Rear. max
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04-05-2005, 06:16 PM
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another round please
Join Date: Sep 2004
Location: Carmel In.
Posts: 4,452
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Thanks guys. The wheels I'm looking at are 18x8 and 18x11, with a 50mm front o/s, and a 45mm rear offset. Im stinking they will fit with my adapters. Thanks guys, the MM is right where you said it would be on the wheel. See ya. Strup
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Getting old is not for wimps. Last edited by strupgolf; 04-05-2005 at 06:53 PM.. |
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04-05-2005, 06:21 PM
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50mm offset is typical 993/996 8 inch front wheel spec.
45mm offset is typical 993/996 10 or 11 inch rear spec for the wide body models ( C2S, C4S, Turbo ) . ( The standard 993/996s use a 65mm offset on the rear wheels)
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04-05-2005, 06:28 PM
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1980 /1997 Porsche 911 SC/ 993s 3.0 / 3.6
