991.1 vs 991.2 wheel offsets
#32
Rennlist Member
I recommend you check out this thread:
https://rennlist.com/forums/991/1165...rrow-body.html
https://rennlist.com/forums/991/1165...rrow-body.html
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F1SML8R (03-19-2020)
#33
From that other thread:
991.1 Carrera-line narrow body offsets for 20-inch wheels:
Front - 8.5 x 20 ET51 - 245/35 ZR 20 (91Y)
Rear - 11 x 20 ET70 - 295/30 ZR 20 (101Y) XL
991.2 Carrera-line narrow-body offsets for 20-inch wheels:
Front - 8.5 x 20 ET 49 - 245/35 ZR 20
Rear - 11.5 x 20 ET 76 - 305/30 ZR 20 (note: offset "only" changed 6mm, but wheel is further out in fender, as if on a spacer, also)
991.1 Carrera-line wide-body offsets for 20-inch wheels:
Front - 8.5 x 20 ET 51 - 245/35 ZR 20
Rear - 11 x 20 ET 52 - 305/30 ZR 20
991.2 Carrera-line wide-body offsets for 20-inch wheels:
Front - 8.5 x 20 ET 49 - 245/35 ZR 20
Rear - 11.5 x 20 ET 56 - 305/30 ZR 20
^ Above is best of my knowledge, and I encourage others to check the info; PCNA's configurator lists a number of 991.2 S/4S/GTS offsets incorrectly, which doesn't help matters. Please also note that there is an "XXL" extra wide body for the 991, used for the 911 Turbo/S and GT3/GT2 RS—but those live in their own forums.
991.1 Carrera-line narrow body offsets for 20-inch wheels:
Front - 8.5 x 20 ET51 - 245/35 ZR 20 (91Y)
Rear - 11 x 20 ET70 - 295/30 ZR 20 (101Y) XL
991.2 Carrera-line narrow-body offsets for 20-inch wheels:
Front - 8.5 x 20 ET 49 - 245/35 ZR 20
Rear - 11.5 x 20 ET 76 - 305/30 ZR 20 (note: offset "only" changed 6mm, but wheel is further out in fender, as if on a spacer, also)
991.1 Carrera-line wide-body offsets for 20-inch wheels:
Front - 8.5 x 20 ET 51 - 245/35 ZR 20
Rear - 11 x 20 ET 52 - 305/30 ZR 20
991.2 Carrera-line wide-body offsets for 20-inch wheels:
Front - 8.5 x 20 ET 49 - 245/35 ZR 20
Rear - 11.5 x 20 ET 56 - 305/30 ZR 20
^ Above is best of my knowledge, and I encourage others to check the info; PCNA's configurator lists a number of 991.2 S/4S/GTS offsets incorrectly, which doesn't help matters. Please also note that there is an "XXL" extra wide body for the 991, used for the 911 Turbo/S and GT3/GT2 RS—but those live in their own forums.
Fronts: 235/35ZR19, 8" width with 57mm offset.
Backs: 295/30/ZR19, 11" width with 67mm offset.
#34
Would the wheels below work for a 991.2 C4 (widebody)? Looking for some rims for winter tires and maybe came across some that will work. I dont really understand the offset well enough to feel comfortable, so I thought I would ask for help! Thanks in advanced!
Fronts: 235/35ZR19, 8" width with 57mm offset.
Backs: 295/30/ZR19, 11" width with 67mm offset.
Fronts: 235/35ZR19, 8" width with 57mm offset.
Backs: 295/30/ZR19, 11" width with 67mm offset.
Remember, spacers REDUCE the offset and push the face of the wheel further toward the fender lip. So, you will likely need to run spacers for these wheels to work properly, as the offsets are too large for your wide body.
Go 7-10mm in the front and 10-12mm in the rear and the wheel lip should be just about flush with the fender lip.
For example, I’m running 5mm/3mm on stock Carrera S wheels on my narrow body 991.2. I probably should have gone with 7mm or even 10mm up front. The rear could have handled 5mm to 7mm, but I didn’t want to be that aggressive as I have SPASM.
#35
Will 991.2 TTS rims work just fine on a 991.1 S
Remember, spacers REDUCE the offset and push the face of the wheel further toward the fender lip. So, you will likely need to run spacers for these wheels to work properly, as the offsets are too large for your wide body.
Go 7-10mm in the front and 10-12mm in the rear and the wheel lip should be just about flush with the fender lip.
For example, I’m running 5mm/3mm on stock Carrera S wheels on my narrow body 991.2. I probably should have gone with 7mm or even 10mm up front. The rear could have handled 5mm to 7mm, but I didn’t want to be that aggressive as I have SPASM.
Go 7-10mm in the front and 10-12mm in the rear and the wheel lip should be just about flush with the fender lip.
For example, I’m running 5mm/3mm on stock Carrera S wheels on my narrow body 991.2. I probably should have gone with 7mm or even 10mm up front. The rear could have handled 5mm to 7mm, but I didn’t want to be that aggressive as I have SPASM.
https://www.ebay.com/itm/18554957645...hoCaeUQAvD_BwEPorsche Part # 991.362.720.00 Front Wheels - 9JX20 ET:51
Porsche Part # 991.362.761.01 Rear Wheels – 11.5JX20 ET:5
#36
Rennlist Member
I purchased the following rims for my 991.1 S that were on a 991.2 TTS. In the past I have had 11 in the rear, I would like to know if these would bulge out on a 991.1 S. I plan on putting new Perelli 295/30/20 tires on the rear. Can I get a clear answer from the experts?
https://www.ebay.com/itm/18554957645...hoCaeUQAvD_BwEPorsche Part # 991.362.720.00 Front Wheels - 9JX20 ET:51
Porsche Part # 991.362.761.01 Rear Wheels – 11.5JX20 ET:5
https://www.ebay.com/itm/18554957645...hoCaeUQAvD_BwEPorsche Part # 991.362.720.00 Front Wheels - 9JX20 ET:51
Porsche Part # 991.362.761.01 Rear Wheels – 11.5JX20 ET:5
These wheels are from the XXL wide body TT/TTS which is wider than .1 GTS
#37
Rennlist Member
#38
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BBS FI-R in stock
20 x 9 et48 5x130
20 x 11.5 et46 5x130
20 x 11.5 et62 5x130
20 x 9 et52 centerlock
20 x 9.5 et50 centerlock
20 x 11.5 et54 centerlock
20 x 12 et52 centerlock
21 x 12,5 et48 centerlock
BBS Motorsport/Manthey Racing Magnesium in stock
20 x 9.5 et50 centerlock
21 x 12.5 et48 centerlock
20 x 9.0 et52 centerlock
20 x 12 et44 centerlock
BBS Motorsport RE-MTSP in stock
20 x 9.0 et52 centerlock
20 x 12 et47 centerlock
Be happy to assist
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SupremePOWER Inc
1562 Kimberly Ave - Fullerton CA 92831
Contact: sales@supremepower.com - Shop# (714)632-1951
World's Largest Retailer/Distributor of BBS Motorsport & Street Wheels from 2015-2023
Huge Inventory: BBS, Kline, Brembo, Soul, Recaro, KW, Akrapovic & 200+ brands. Installation available
** Retail & Wholesale ** Global Delivery ** We match/beat any authorized dealer's price **
SupremePower.com // SupremeForged.com // Follow SupremePower on IG
#39
That's a bummer, I wish I researched a bit more before pulling the trigger. I had on Rear - 11.0 x 20 that were about flush or slightly smaller I thought these would work pretty good as well. Well I guess I will be putting them on the marketplace to re-sell $ 2000 any takers?
#40
Rennlist Member
Hello all... bumping this old thread hoping someone can tell me if this size and offset (8.5Jx20 ET53 11.5Jx21 ET67) will fit on a 991.2 narrow body S?
I think the offset will bring the rear wheels out about 9mm but not sure how that will work with the wheel being 1" taller too.
I thought I'd add 5mm spacers in the front to help with the negative 4mm offset.
Thanks in advance for any responses.
***edit***
A little (lot) more digging and I was able to determine that they probably won't look right on the car.
I think the offset will bring the rear wheels out about 9mm but not sure how that will work with the wheel being 1" taller too.
I thought I'd add 5mm spacers in the front to help with the negative 4mm offset.
Thanks in advance for any responses.
***edit***
A little (lot) more digging and I was able to determine that they probably won't look right on the car.
Last edited by CTDan; 11-30-2023 at 04:31 PM.
#41
Rennlist Member
Offset
Hello all... bumping this old thread hoping someone can tell me if this size and offset (8.5Jx20 ET53 11.5Jx21 ET67) will fit on a 991.2 narrow body S?
I think the offset will bring the rear wheels out about 9mm but not sure how that will work with the wheel being 1" taller too.
I thought I'd add 5mm spacers in the front to help with the negative 4mm offset.
Thanks in advance for any responses.
***edit***
A little (lot) more digging and I was able to determine that they probably won't look right on the car.
I think the offset will bring the rear wheels out about 9mm but not sure how that will work with the wheel being 1" taller too.
I thought I'd add 5mm spacers in the front to help with the negative 4mm offset.
Thanks in advance for any responses.
***edit***
A little (lot) more digging and I was able to determine that they probably won't look right on the car.