996 Wheels
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996 Wheels
Hiya,
Found these on eBay:
http://cgi.ebay.co.uk/ws/eBayISAPI.d...:X:RTQ:GB:1123
The seller doesn't know the ET number as it seems not to be stamped on the back.
What are the chances they will fit a 928?
Thanks
Nadine
Found these on eBay:
http://cgi.ebay.co.uk/ws/eBayISAPI.d...:X:RTQ:GB:1123
The seller doesn't know the ET number as it seems not to be stamped on the back.
What are the chances they will fit a 928?
Thanks
Nadine
Nordschleife Master
Joined: Sep 2004
Posts: 9,429
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From: Not close enough to VIR.
I don't know how Mark can say they won't fit the front. Most 996 wheels will fit the front of a 928. They are not the ideal offset of 60-70mm, but are usually 55+/-3mm. Spacers wouldn't help that. The rear is the bigger question. Some 996 widebody wheels have very little offset which can cause a problem.
Nordschleife Master
Joined: Jun 2006
Posts: 6,297
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From: ɹəpun uʍop 'ʎəupʎs
From memory factory wheel offsets are 65mm front, 53mm rear (52.9?) (fronts on some cars were 60mm - e.g. the rare Clubsport/SE model and 89GT)
The high front offset is why a lot of wheels stick out a long way.. the minimum generally advised is 55mm on the front.
The high front offset is why a lot of wheels stick out a long way.. the minimum generally advised is 55mm on the front.
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Thread Starter
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Joined: Mar 2008
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I really don't understand this offset thing....
Not only am I confused but now don't know which wheels I should be going for in terms of these measurements.
Can someone give me a range of the offsets for the front and rear that would be acceptable to the 928.
BTW, what is tramlining?
Thanks ever so much
Not only am I confused but now don't know which wheels I should be going for in terms of these measurements.
Can someone give me a range of the offsets for the front and rear that would be acceptable to the 928.
BTW, what is tramlining?
Thanks ever so much
Drifting
Joined: Nov 2006
Posts: 2,973
Likes: 1
From: Farmington Hills, MI
Tramlining is following irregularities in the road. If the surface isn't smooth, the car will follow imperfections. Kind of feels like running toe out on the front.
The bigger the offset, the more the wheel will be located inward towards the engine. The stock number is 60 for the front. If you have an ET50 wheel, it will sit 10mm further towards the outside of the fender. The increased scrub radius allows the wheel to follow road imperfections more easily.
The bigger the offset, the more the wheel will be located inward towards the engine. The stock number is 60 for the front. If you have an ET50 wheel, it will sit 10mm further towards the outside of the fender. The increased scrub radius allows the wheel to follow road imperfections more easily.
Race Car
Joined: Apr 2006
Posts: 4,772
Likes: 2
From: South Florida
Visit www.wheeldynamics.net/appguide.html , it's one of the better resources for seeing different wheels offsets on a 928
Three Wheelin'
Joined: Jun 2005
Posts: 1,741
Likes: 1
From: Bournemouth, Dorset, UK.
Hi Nadine 
I am in the Uk and run 996 wheels on mine, although mine are "Sport Designs"..mine is an 86 S2..
They have a 50 offset on the front (7.5 inch wide) and are fine although due to the offset the centre caps wont fit any more lol...
My rears are 10 inch with a 65 offset which are also fine but I had to take off the Porsche original 1 inch spacers or they would have stuck out past the arches too much...
Tramlining..yes mine does a little, but that applies to any wide tyre....the effect you get as an example is particularly felt when your tyres run on a white line in middle of road, the car sort of tries to follow the line, but after a couple of days you wont even notice it as your driving style adjusts to compensate...
All the best Brett
I am in the Uk and run 996 wheels on mine, although mine are "Sport Designs"..mine is an 86 S2..
They have a 50 offset on the front (7.5 inch wide) and are fine although due to the offset the centre caps wont fit any more lol...
My rears are 10 inch with a 65 offset which are also fine but I had to take off the Porsche original 1 inch spacers or they would have stuck out past the arches too much...
Tramlining..yes mine does a little, but that applies to any wide tyre....the effect you get as an example is particularly felt when your tyres run on a white line in middle of road, the car sort of tries to follow the line, but after a couple of days you wont even notice it as your driving style adjusts to compensate...
All the best Brett
Nordschleife Master
Joined: Jun 2006
Posts: 6,297
Likes: 63
From: ɹəpun uʍop 'ʎəupʎs
I really don't understand this offset thing....
Not only am I confused but now don't know which wheels I should be going for in terms of these measurements.
Can someone give me a range of the offsets for the front and rear that would be acceptable to the 928.
BTW, what is tramlining?
Thanks ever so much
Not only am I confused but now don't know which wheels I should be going for in terms of these measurements.
Can someone give me a range of the offsets for the front and rear that would be acceptable to the 928.
BTW, what is tramlining?
Thanks ever so much
Generally accepted range of offsets for front are: 55-65mm (higher is preferable).
For the rear, 53mm.
If you find a wheel with higher offsets than required, you can use spacers to reduce it (e.g. 65mm offset on a 996 rear wheel can be reduced to 53mm using a 12mm spacer).
Go check out Andrew Olson's wheel fitment calculator, found here:
https://rennlist.com/forums/showpost...7&postcount=56
Lastly, "tramlining" is a tendency for the car to get pulled off your intended line by grooves and bumps in the road. E.g. if there's a slightly grooved surface where snow ploughs have scraped the road, with too low an offset your car will try and follow the grooves, as if its on rails.
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Joined: Mar 2008
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Hiya Brett,
What do you think of this http://cgi.ebay.co.uk/ws/eBayISAPI.d...:X:RTQ:GB:1123
Do you think I should gor for these?
Thanks ever so much
What do you think of this http://cgi.ebay.co.uk/ws/eBayISAPI.d...:X:RTQ:GB:1123
Do you think I should gor for these?
Thanks ever so much