Board: Porsche - 911 - 997 Language: English Region: Worldwide Share/Save/Bookmark Close

Forum - Thread

    Strange Wheel Discrepancies At Dealer

    Hey Gang,

    Today I went back to the dealer in an attempt to sort out some of the wheel choices. I've ordered a GR/Bk 3.6 cab with the 19" Carrera Classics but thought I'd take some time to see if there was another worthwhile choice.

    I went to Ray Catena Porsche in Edison (NJ), where they have a great selection of 997's on the floor and in the lot. Here's what I found that was strange:

    1. The XRR sport wheel (19): excellent stance, literally right out to the edge of the wheel housing, rears are wearing 305's. I love this wheel, but I'm not sure of the look with GR. It was on a GR in the showroom and somehow, the slightly darker paint color on the wheel (Seal maybe??) seems a little less impactful for me on GR. They looked amazing on the non-metallic black and on the silver and greys.

    2. The "S" wheel (19): sits inboard from the rear wheel arch about an inch. Wearing a 295 rear tire. Fills the wheel area well but does not match the XRR for hugging the wheelhousing edge.

    3. The Classic (19(: sits inboard about an inch as well but is deceiving - almost looks like it's smaller than it is - a lot of open space between the spokes. Lots of wheel housing showing. Fronts seems to have the "front wheel drive" positive offset look.

    4. The Sport Design(19): it too sits inboard about an inch in the rear, but it has so much surface area in the spokes that it seems "fuller" in the wheel housing, if such a thing actually exists.

    Here's the strange thing: there was a base 3.6 with upgraded "S" wheels on the lot. A pretty low option car per the window sticker. Strange thing was that the rears, with 295's, where AT the fender line - just like the XRR's. I checked for spacers, but there were none. So, do these wheels ship with different offsets??? Even the sales guy was baffled. Honestly, no spacers!

    Any idea? Thanks.

    Re: Strange Wheel Discrepancies At Dealer

    Just to clearify, all these measurements were to the wheel rim and not to any protrudence of the tire sidewall? Secondly were all the wheels you viewed on the same model?

    Re: Strange Wheel Discrepancies At Dealer

    Don't shoot me for this comment, but doesn't the C2S have slightly wider arches at the rear than the C2?

    Or it might be that both the C2 and C2S (997) have slightly wider arches than the 996. In which case I'm confused.

    The only plausible reason would be different offsets.

    Re: Strange Wheel Discrepancies At Dealer

    ResB said:
    Don't shoot me for this comment, but doesn't the C2S have slightly wider arches at the rear than the C2?

    Or it might be that both the C2 and C2S (997) have slightly wider arches than the 996. In which case I'm confused.

    The only plausible reason would be different offsets.

    Wheel arches of C2 and C2S are identical. However, the following rear wheel options are available for one or both of these models ("ET" is the offset in mm):

    10J x 18 ET 58

    11J x 19 ET 67

    9J x 17 ET 50

    10J x 18 ET 65

    9J x 17 ET 55 (maybe only for use with winter tires?)

    Tires baby!

    The wheel offsets are the same regardless of C2/C2S/C4/C4S. Porsche has enough sku's without adding uneccessary complexity.

    The only logical reasons are that different tyre brands have different sidewalls and so look to have different offsets, or that the manufacturing tolerances between rear fenders is sufficient great that it is visible to the naked eye.

    btw. C2 & C2S share common rear fenders. C4 & C4S share common rear fenders. 997 is not 996 in this regard.

    Re: Strange Wheel Discrepancies At Dealer

    Seriously, check this out next time you're at the dealer. My measurement reflects the distance from the tire sidewall and the upper edge of the wheelhousing. Sorry, I did not check tire brand. The XRR and the "S" wheel on the base 3.6 on the lot almost look as though the top fender lip would make contact in the event that the suspension hit the bump stops. I have a set of TechArt Formula's on my Boxster that are also right out on the fenderline, which really helps to improve the stance.

    Re: Strange Wheel Discrepancies At Dealer

    Go with the XRR



    Board Subject Last post Rating Views Replies
    Porsche Sticky The moment I've been waiting for... 5/18/22 6:36 PM
    679476 1306
    Porsche Sticky OFFICIAL: New Porsche 911 Turbo S (2020) 10/9/22 4:08 PM
    313455 1186
    Porsche Sticky SUN'S LAST RUN TO WILSON, WY - 991 C2S CAB LIFE, END OF AN ERA (Part II) 11/27/22 12:22 PM
    210333 1251
    Porsche Sticky Welcome to Rennteam: Cars and Coffee... (photos) 11/9/22 4:37 PM
    196017 434
    Porsche Sticky Porsche Taycan Turbo S - Short Review 10/6/22 12:37 AM
    179575 580
    Porsche Sticky OFFICIAL: Cayman GT4 RS (2021) 11/22/22 8:19 PM
    121239 9
    Porsche Sticky OFFICIAL: Porsche 911 (992) GT3 RS - 2022 11/25/22 8:11 AM
    50840 67
    McLaren McLaren on a winning streak 2/1/22 10:14 PM
    514391 3954
    Porsche OFFICIAL: 911 R (2016) 2/1/22 9:49 AM
    469746 2655
    Porsche 992 GT3 11/27/22 2:46 AM
    465369 3785
    Porsche Donor vehicle for Singer Vehicle Design 9/30/22 6:31 PM
    223521 774
    Porsche Welcome to the new Taycan Forum! 7/30/22 11:46 AM
    221749 1446
    AMG AMG GT R 3/13/22 8:52 PM
    193211 834
    Lambo Aventador and SV 5/20/22 5:24 PM
    189178 710
    Others Tesla 2 the new thread 10/27/22 2:59 PM
    184112 1863
    Porsche GT4RS 11/24/22 3:09 AM
    183209 1193
    Motor Sp. [2021] Formula 1 4/19/22 10:08 PM
    157139 1590
    Others Bugatti Chiron 8/30/22 4:31 PM
    153909 525
    Ferrari Ferrari 812 Superfast 6/12/22 5:09 PM
    150053 535
    BMW M BMW M2 Rumors 2/28/22 7:42 PM
    136624 409
    Porsche Red Nipples 991.2 GT3 Touring on tour 10/6/22 11:48 PM
    133559 501
    Lambo Urus (SUV) 6/7/22 1:20 PM
    131811 593
    Others Corvette C8 7/18/22 12:40 PM
    131048 443
    Porsche Dave and Gnil @ Nürburgring Nordschleife 7/4/22 10:42 PM
    129665 722
    Motor Sp. [2022] Formula 1 11/23/22 5:52 PM
    120243 1553
    Others Toyota Yaris GR 4/13/22 8:33 PM
    100717 640
    Lambo Huracán EVO STO 7/21/22 8:37 AM
    100071 335
    AMG Mercedes E63 S AMG (2018) - Short Review (updated on a regular basis) 10/24/22 7:42 AM
    97503 402
    Ferrari Wandered to the dark side 8/29/22 9:35 AM
    72595 418
    Ferrari Ferrari Roma 4/18/22 4:33 PM
    31434 438
    176 items found, displaying 1 to 30.