981 Cayman GTS 19” wheels?
#1
981 Cayman GTS 19” wheels?
With the proposed move of the 981 S and GTS to AS I’m trying to determine the available wheel options for the GTS. Does anyone know and/or have documentation that the car could be ordered with 19x8.5/10 wheels like the S?
#2
Rennlist Member
Check out this link for the specs.
https://www.suncoastparts.com/product/981TECHNOS.html
#4
Rennlist Member
Edit: No. It was not. The GTS was only offered with 20" wheel options, if I remember correctly. Can anyone else confirm? The base and the S allowed 19" wheels, but they were only 19x8/9.5.
#5
Thanks. So you are saying the gts could be ordered with 19” but not the same 19” that the S could be ordered with? Or you are suggesting there was no 19x8.5/10 available for either? Do you have any docs detailing the options?
#6
Rennlist Member
Here are some links to the 981 Cayman brochures:
http://www.auto-brochures.com/makes/Porsche/Cayman/Porsche_US%20Cayman-GTS_2014.pdf
http://www.auto-brochures.com/makes/Porsche/Cayman/Porsche_US%20Cayman_2014.pdf
Last edited by chriswd62; 11-21-2018 at 11:22 AM.
Trending Topics
#8
No. The GTS was not available with anything other than 20" wheels. The S came standard with 19", but could be optioned with 20". The base came standard with 18", but could be optioned with either 19" or 20" wheels. Either way, the only 19" width options for the 981 was 19x8/9.5. There were never any 19x8.5/10 combinations available for any version of the 981.
Here are some links to the 981 Cayman brochures:
http://www.auto-brochures.com/makes/Porsche/Cayman/Porsche_US%20Cayman-GTS_2014.pdf
http://www.auto-brochures.com/makes/Porsche/Cayman/Porsche_US%20Cayman_2014.pdf
Here are some links to the 981 Cayman brochures:
http://www.auto-brochures.com/makes/Porsche/Cayman/Porsche_US%20Cayman-GTS_2014.pdf
http://www.auto-brochures.com/makes/Porsche/Cayman/Porsche_US%20Cayman_2014.pdf
#10
Assuming the tires clear the spring on the inside I think fender rubbing will be an issue on the outside. To make them fit you'll need the full 7mm allowance on the wheel offset. Then you're adding another 15mm of tire on the outboard side in the front and 20mm in the rear. No OE suspension is stiff enough to prevent a few inches of compression when you're cornering and the body rolls; plus every sportier OE suspension option removes another 10mm of ride height. You're also camber limited in the front and can't rely on the added negative camber to help the tire clear under compression.
Also, putting a 265 on an 8.5" wheel and a 305 on a 10" wheel might be possible, but I don't know if you're going to see a significant improvement in performance over the same tires in a 255/285 setup. The wider setup is too wide for the wheels and you'll end up with a less than nominal tire shape / profile once mounted. Instead of vertical sidewalls and more square shoulders you'll have a rounded shape. The tire may squirm a bit while cornering and the non-vertical sidewalls will have an impact on steering feel and response. Coupled with added weight I don't think it makes sense.
235/265 on 8.5" and 10" wheels fits like /```````\
255/285 on 8.5" and 10" wheels fits like |````````|
265/305 on 8.5" and 10" wheels fits like \`````````/
Also, putting a 265 on an 8.5" wheel and a 305 on a 10" wheel might be possible, but I don't know if you're going to see a significant improvement in performance over the same tires in a 255/285 setup. The wider setup is too wide for the wheels and you'll end up with a less than nominal tire shape / profile once mounted. Instead of vertical sidewalls and more square shoulders you'll have a rounded shape. The tire may squirm a bit while cornering and the non-vertical sidewalls will have an impact on steering feel and response. Coupled with added weight I don't think it makes sense.
235/265 on 8.5" and 10" wheels fits like /```````\
255/285 on 8.5" and 10" wheels fits like |````````|
265/305 on 8.5" and 10" wheels fits like \`````````/
#12
Given that, I think testing different sizes on a 981 would be a reasonable idea, budget and fitment allowing.
#13
Rennlist Member
#15
Rennlist Member