I am shopping for a new set of wheels for my 991.1 Carrera S (narrow body). What are the perfect offsets to fill out the fenders without any poke?

I have searched and read just about every thread on this forum, and I am finding conflicting information. I have the Sport Design II wheels on my car. I haven't had a chance to take them off to confirm, but from all my research, I believe they are 8.5 x 20 ET51 and 11 x 20 ET70. While the front offsets on the wide body cars are the same, the rear offsets are ET52, extending +18mm out. Most posts here on the forum say this is too much, resulting in poke. However, I have spoken with an aftermarket wheel supplier who is recommending 9 x 20 ET36 and 11.5 x 20 ET48. Using one of the online offset calculator, this results in a +28mm projection in the rear. So, if +18mm is too much with a wide body offset, this has to be way too much. Yet, he suggests that this will result in a perfect flush fit. So, I'm confused.

Can you please share your aftermarket wheel setup with offsets and pictures? Thanks!!!

 

I just got a set of forged Rotiform TUFs on my 991.1 Carrera S with H&R sport springs, -1.5F and -2.0R degrees of negative camber. The Rotiform specs are 20x9+45 and 20x11+60. When i was running the stock Carrera Classic wheels, (Same spec as you mentioned above) I was running 20mm spacers all around. Making the Stock wheels 20x8.5+31 and 20x11+50. On the Rotiform's Im running 10mm front and rear, making them 20x9+35 and 20x11+50. Stock tire sizes on both (245/35/20 and 295/30/20)

 

Many wheel suppliers don’t have a good grasp of Porsche offsets and differences between wide and narrow body cars.

I can tell you from experience that for a 991, anything more than 10mm (vs stock) will result in the poke that you mentioned. This is for rear and assuming car has stock suspension. I wouldn’t do more than 7mm in front.

I have several sets of wheels that will fit your car. OEM Carrera S in black and anthracite and 20” OZ Ultraleggeras pictured below (which have 5mm more aggressive fitment than stock):



https://rennlist.com/forums/market/1314927

 

 

I'm running 20x9 ET45/20x10.5 ET47

 

On a 991.1 NB, I like F: 20x9 +34-37 R:20x11.5 +59, lowered with like -2 camber this will give you the look you want without any rubbing or drama on 245/305 tires. No issues with the big N1 Cup 2's.

I had 20x9 +37 20x9 +59

On my 991.2 NB I have 20x9 +34 (-2.5 camber) and 20x11.5+67 (because its a 991.2)

 

I have H&R Sport Springs, Forgeline SC1s: Front 20" X 8.5" +44 / Rear 20" X 11" +56, and Michelin Pilot Sport 4S: Front 245/35 ZR 20 / Rear 295/30 ZR 20...

 

Thanks for posting your specs and pics. Super helpful!!!

 

I have Signature SV103 20x9 et45 20x11.5 et60. No issues with any rubbing. Stock PASM Sport suspension and ride height

 

 

 

Those look sick!! Love the one on the left!

 

What are the weight of these wheels?
I have been looking at wheels for my 991.1
weight of the wheels is the biggest factor for my purchase.

 

Depending on 1 piece vs multi piece wheels but we have done 20x9+44/20x11+60

-Josh

 

Why not 11.5” in the rear?