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THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH2002 C4S Wheel Fitment
Leading reported evidence
Recommend 45mm offset
Suggestion or failed attempt
No successful repair reported for this finding.
0
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0
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1
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Read evidence and context
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Suggestion
factory recommended a 45mm offset for 18x11 wide wheel.
Leading evidence: 'Recommend 45mm offset' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Recommend 45mm offset' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Suggestion · Original poster
I can either use the new set at the track, or the existing factory ones, depends on what I can find.
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Suggestion · Original poster
Would this dimension fit my car, I am ok if I have to use spacers.
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Rennlist: 1 discussions
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Outcome without a verified action link
You can go a little taller 25.5 inch f/r but still not that many choices
Guys, I am looking at a set of additional wheels for my c4s, and found a set at a good deal, they are 19 X 8.5 (Offset 45) Rear: 19 X 11 (Offset 40). Would this dimension fit my car, I am ok if I have to use spacers. Also how is the tire selection, are there many options available on this size?
Another possible set is 18" wheels, 8.5 x 18 45 offset, 11x18 65 offset
Nominal offset for the C4S - ET50 front and ET63 rear
The second set is closer to stock specs. You have to be careful putting 19" wheels and tires on the 996 since it was never designed to handle that size. You'll have to reduce the outer diameter of the tires to accommodate.
wrong info ^^ 996 c4s is widebody
19x8.5 45 offset 19x11 45 offset is good. almost stock
63mm rear offset is for narrowbody and will need a 17-23mm spacer to fit
Tire selection in 19's suck for the 996 gen there's only a few choices.
To match stock diameter you want 25 inch or so.. You can go a little taller 25.5 inch f/r but still not that many choices
Thank you, I should have clarified.
Some Turbo/C4S rear wheels have a ET63 offset based on the Porsche wheel book
For example, the Porsche 18" Sport Techno wheels for the C4S, GT2, and 996 Turbo:
996.362.136.51
8x18 ET50 front
996.362.142.52
11x18 ET63 rear
Recommended tires:
225/40ZR/18 front
295/30ZR/18 rear
Some of the widebody 11" rear wheels have a ET45 offset. There are also some factory 12" rear wheels in the book.
996.362.136.31
8.5x18 ET40 front
996.362.142.31
12x18 ET45 rear
Here a set of Sport Techno posted on Pelican...
http://forums.pelicanparts.com/5973802-post1.html
correct. the sport technos are listed as widebody fitment but that ad is misleading as for the widebody you NEED the factory 17mm spacer w/ nuts made specifically for the widebody 996.
factory recommended a 45mm offset for 18x11 wide wheel. the sport techno 63mm - 17mm spacer = 46mm offset
18x12 45mm offset was standard for 996 gt2 but will also fit widebody. Tires were a little taller for the 18x12 wheels though
Thank you for the information. That set of 19" are close to me and look very nice, but if the tire options are limited I may pass on them and wait for a set of 18 to show up.
I am basically looking for an additional set of wheels for the track. I can either use the new set at the track, or the existing factory ones, depends on what I can find.
Hey guys,
I've come across a set of 997 turbo rims
Front = 19 x 8.5 ET56
Back = 19 x 11 ET51
Being completely new to Porsche, let me know if these will work on my car and max tire size I can go to without modifications. I was looking at 235 / 40 R19 on the front and 305 / 30 R19 on the back. Will this combination work?
Thanks for all the help guys...looking forward to digging in and surfing around the forum.
Cheers,
Rick
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