Can 996 wheels be fitted on a C2 vonv.?
09-09-2002, 03:22 PM
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Can 996 wheels be fitted on a C2 vonv.?
Hello All,
I am looking into the possibility of fitting a 996 ten spokes 17" wheels with Front Set: 205/50/17 rear Set: 255/40/17 tire on a 1990 C2 convertible. I am wondering if this can be done and how?. Has anyone have this wheel/tire configuration on their C2?. Thanks in advance for all yoaur help. Best, Andrew
I am looking into the possibility of fitting a 996 ten spokes 17" wheels with Front Set: 205/50/17 rear Set: 255/40/17 tire on a 1990 C2 convertible. I am wondering if this can be done and how?. Has anyone have this wheel/tire configuration on their C2?. Thanks in advance for all yoaur help. Best, Andrew
09-09-2002, 04:36 PM
#2
Burning Brakes
I am currently running 996 twist wheels, 7 & 9x17 on my C4. The wheels you are talking about should be fine unless they are wider then 7 & 9. You should also search the archives for some info on factory recommendations for fitting 17" wheels on 964s. There is a recommended steering stop update on the earlier cars to prevent rubbing at full lock.
09-09-2002, 05:37 PM
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You MUST find out the wheels' offsets. For 7x17 and 9x17 wheels, the factory offset recommendation is 55mm both front and rear. I believe the 996's use similar numbers, but definitely get it confirmed before opening your wallet. <img src="graemlins/jumper.gif" border="0" alt="[jumper]" />
09-10-2002, 02:44 AM
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Indeed, the rim offset is different on the 996 twist where the offset is 55 front and rear (7J and 9J respectively).
Those rims fit straight onto the 964 though 5mm spacers front and rear certainly fill out the arches a bit better (and with the 5mm spacers on those rims I remember that I did not have to modify my steering as there was no rubbing on the inner body of the car).
Cheers
Harold
<a href="http://members.rennlist.com/complete964" target="_blank">Complete 964</a>
Those rims fit straight onto the 964 though 5mm spacers front and rear certainly fill out the arches a bit better (and with the 5mm spacers on those rims I remember that I did not have to modify my steering as there was no rubbing on the inner body of the car).
Cheers
Harold
<a href="http://members.rennlist.com/complete964" target="_blank">Complete 964</a>
09-10-2002, 07:08 AM
#6
Race Car
Andrew, the 996 wheels in question here will fit like a champ! The 5mm less offset (50mm) for the front wheels are PERFECT, being that with most applications, a 17" x 7" front wheel with 55mm offset requires a 3-5mm spacer and/or steering stop updates to prevent rubbing.
I have 17" x 7" and 9" (55mm offset all four) 996/Boxster S "Twist" wheels I use as my street wheels and the same size for my track wheels that are 993 Cup II wheels...the fronts rub quite a bit without the 3mm spacers that have found a home up there - I plan to update the steering stops, someday.
So, looks like you'll be okay...by all means, post a pic of your car with those wheels when you're all set up.
I have 17" x 7" and 9" (55mm offset all four) 996/Boxster S "Twist" wheels I use as my street wheels and the same size for my track wheels that are 993 Cup II wheels...the fronts rub quite a bit without the 3mm spacers that have found a home up there - I plan to update the steering stops, someday.
So, looks like you'll be okay...by all means, post a pic of your car with those wheels when you're all set up.
09-10-2002, 10:08 AM
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Hi All,
Thank you for all your help. I have a follow-up question concerning the offset of the wheels. Are my understanding correct in saying that the offsets are the distances from the wheel mount surfaces to the inner ends off the wheels?, and they are important in that they allow you to pick a wheel that will fit inside the fender with-out rubbing against the inner fender?. Thanks again, best, Andrew
Thank you for all your help. I have a follow-up question concerning the offset of the wheels. Are my understanding correct in saying that the offsets are the distances from the wheel mount surfaces to the inner ends off the wheels?, and they are important in that they allow you to pick a wheel that will fit inside the fender with-out rubbing against the inner fender?. Thanks again, best, Andrew
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09-10-2002, 09:57 PM
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[quote]Originally posted by toyboy:
<strong>the distances from the wheel mount surfaces to the inner ends off the wheels</strong><hr></blockquote>
That's the definition of rear spacing.
Offset is the distance between the mounting surface of the wheel and the center of the rim (Puhn). To calculate offsets, take the rear spacing and subtract 1/2 of the wheel width. Make sense?
Technically, we're talking about negative offsets which means the center of the wheel is inboard of the wheel mounting surface, but the Porsche numbers are usually referred to as positive values.
As you guessed, these numbers enable you to select a wheel which will be properly located within the fender or wheel well.
<strong>the distances from the wheel mount surfaces to the inner ends off the wheels</strong><hr></blockquote>
That's the definition of rear spacing.
Offset is the distance between the mounting surface of the wheel and the center of the rim (Puhn). To calculate offsets, take the rear spacing and subtract 1/2 of the wheel width. Make sense?
Technically, we're talking about negative offsets which means the center of the wheel is inboard of the wheel mounting surface, but the Porsche numbers are usually referred to as positive values.
As you guessed, these numbers enable you to select a wheel which will be properly located within the fender or wheel well.
