Alloy fitment for standard body Carrera 996

[Clouder]

Hi Newbie again,

I've been offered a set of alloys for my standard body 996 carrera. There were originally on a 997 and their sizing is as follows

Front: off set: 19" x 8.5"J ET+53

Rear: off set: 19" x 12"J ET +51

Will these fit, or would they work for a 996 carrera 4s only?

Thanks

[Loren]

Those are wide body wheels - and 19" wheels are not approved for use on 996 series cars.

[creekman]

Those are wide body wheels - and 19" wheels are not approved for use on 996 series cars.

Loren,

 

What makes the 19" wheel, "not approved for use on the 996 series cars"?  

 

Thanks,

[JFP in PA]

 

Those are wide body wheels - and 19" wheels are not approved for use on 996 series cars.

Loren,

 

What makes the 19" wheel, "not approved for use on the 996 series cars"?  

 

Thanks,

 

 

 

Offset and the fact that like the early Boxsters (which could not use 18" wheels), the chassis was not reinforced to handle the load of 19".  Covered in Porsche TSB 18/04 4440.

[creekman]

Jeff,

 

My C4S is now a C2S (RWD) car, If the offset is correct and I go to 19" wheels for normal driving (no track use) are the doors going to fall off anytime soon?

 

Thanks,

[JFP in PA]

Jeff,

 

My C4S is now a C2S (RWD) car, If the offset is correct and I go to 19" wheels for normal driving (no track use) are the doors going to fall off anytime soon?

 

Thanks,

 

 

If the 996 follows the lead of the early Boxsters and 18" wheels, the chassis will develop cracks at key suspension mount locations.  Porsche's wheel and tire size limit recommendations only concerns normal street usage, so staying off the track is not going prevent the problem from starting, it just may take longer.  Once the car starts to develop these failures, it is nearly impossible to hide and will totally kill the resale value of the car if spotted in a PPI.  Any disturbance in the OEM paint, such as the use of sound deadening overspray's on these locations immediately raises questions and lowers prices, if the car is even saleable.

 

At the end of the day, it is your car and your money, so proceed as you please; but the TSB exists for a reason............

[Clouder]

Hi guys,

Thanks for the replays. Sounds like they would fit a 996 C4S but not a C2. And fitting 19" wheels could cause (very worrying I must admit) excessive loads in the structure, causing fatigue. Time for a rethink.