991 Turbo wheels on 991.2 GTS
01-19-2018, 07:29 PM
#17
I'll add one more for that 991.1 Turbo S.
So it looks like while the 991.2 Turbo is very close, the 991.1 Turbo is diff in the following:
11.5 vs 12
56mm vs 63
While all have the exact same tire on them, how would that diff be translated to daily use?
Wider sicks out more with there since they are 56 vs my 63?
Did I get that right?
991.2 GTS
Forged "Turbo S III" one-piece center-lock alloy wheels with motorsport-derived spoke design
Black Satin finish with colored Porsche Crest
9 x 20 ET 51 with 245/35 ZR 20 tires (front)
12 x 20 ET 63 with 305/30 ZR 20 tires (rear)
991.2 Turbo S
Forged "Turbo S III" one-piece center-lock alloy wheels with motorsport-derived spoke design
Two tone finish with colored Porsche Crest
9 x 20 ET 51 with 245/35 ZR 20 tires (front)
12 x 20 ET 56 with 305/30 ZR 20 tires (rear)
991.1 Turbo S
Forged "Turbo S III" one-piece center-lock alloy wheels with motorsport-derived spoke design
Two tone finish with colored Porsche Crest
9 x 20 ET 51 with 245/35 ZR 20 tires (front)
11.5 x 20 ET 56 with 305/30 ZR 20 tires (rear)
So it looks like while the 991.2 Turbo is very close, the 991.1 Turbo is diff in the following:
11.5 vs 12
56mm vs 63
While all have the exact same tire on them, how would that diff be translated to daily use?
Wider sicks out more with there since they are 56 vs my 63?
Did I get that right?
991.2 GTS
Forged "Turbo S III" one-piece center-lock alloy wheels with motorsport-derived spoke design
Black Satin finish with colored Porsche Crest
9 x 20 ET 51 with 245/35 ZR 20 tires (front)
12 x 20 ET 63 with 305/30 ZR 20 tires (rear)
991.2 Turbo S
Forged "Turbo S III" one-piece center-lock alloy wheels with motorsport-derived spoke design
Two tone finish with colored Porsche Crest
9 x 20 ET 51 with 245/35 ZR 20 tires (front)
12 x 20 ET 56 with 305/30 ZR 20 tires (rear)
991.1 Turbo S
Forged "Turbo S III" one-piece center-lock alloy wheels with motorsport-derived spoke design
Two tone finish with colored Porsche Crest
9 x 20 ET 51 with 245/35 ZR 20 tires (front)
11.5 x 20 ET 56 with 305/30 ZR 20 tires (rear)
01-19-2018, 07:44 PM
#18
Rennlist Member
You have to account for:
- Wheel offset (as others have said)
- Inset and outset in light of the offset and wheel width
- Dynamic wheel well fit (a wheel and tire "walk around" quite a bit under various loading)
01-19-2018, 07:54 PM
#19
Rennlist Member
Thread Starter
Why would the recommended tire for the 991.1 rim would be:
11.5 x 20 ET 56 with 325/25 ZR 20 tires (rear)
While the 991.2:
12 x 20 ET 63 with 305/30 ZR 20 tires (rear)
and would the 305/30 fit that rim, it should, right?
11.5 x 20 ET 56 with 325/25 ZR 20 tires (rear)
While the 991.2:
12 x 20 ET 63 with 305/30 ZR 20 tires (rear)
and would the 305/30 fit that rim, it should, right?
01-19-2018, 08:19 PM
#20
Folks, someone on here, I believe Rennlister bweile, put these tires on his 991.2 GTS for winter wheels. It’s in one of the winter wheel threads.
Last edited by Boulder Mike; 01-19-2018 at 08:20 PM. Reason: Typo
01-19-2018, 08:22 PM
#21
https://rennlist.com/forums/991/1024...r-tires-6.html
here you go. Eg911 and bweile put 991 turbo s wheels on their .2 GTS.
here you go. Eg911 and bweile put 991 turbo s wheels on their .2 GTS.
Last edited by Boulder Mike; 01-19-2018 at 08:24 PM. Reason: Added commentary.
01-19-2018, 08:46 PM
#23
09-29-2021, 02:26 AM
#25
The 991.2 Turbo S wheels are pretty darn close. I think they'd probably fit fine.
991.2 GTS
Forged "Turbo S III" one-piece center-lock alloy wheels with motorsport-derived spoke design
Black Satin finish with colored Porsche Crest
9 x 20 ET 51 with 245/35 ZR 20 tires (front)
12 x 20 ET 63 with 305/30 ZR 20 tires (rear)
991.2 Turbo S
Forged "Turbo S III" one-piece center-lock alloy wheels with motorsport-derived spoke design
Two tone finish with colored Porsche Crest
9 x 20 ET 51 with 245/35 ZR 20 tires (front)
12 x 20 ET 56 with 305/30 ZR 20 tires (rear)
991.2 GTS
Forged "Turbo S III" one-piece center-lock alloy wheels with motorsport-derived spoke design
Black Satin finish with colored Porsche Crest
9 x 20 ET 51 with 245/35 ZR 20 tires (front)
12 x 20 ET 63 with 305/30 ZR 20 tires (rear)
991.2 Turbo S
Forged "Turbo S III" one-piece center-lock alloy wheels with motorsport-derived spoke design
Two tone finish with colored Porsche Crest
9 x 20 ET 51 with 245/35 ZR 20 tires (front)
12 x 20 ET 56 with 305/30 ZR 20 tires (rear)
09-29-2021, 09:27 PM
#26
Rennlist Member
https://www.wheel-size.com/size/porsche/911/2017/
That website has been invaluable in regards to factory wheel specs.
That website has been invaluable in regards to factory wheel specs.
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