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Old 10-12-2018, 08:36 PM
  #16  
Joec500
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14mm front 12mm rear on a 991.1 and sport techno wheels which are .5 wider than other 991 rear wheel offerings



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Old 10-12-2018, 08:50 PM
  #17  
Bob Z.
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Be careful going too big with the spacers since the more your tires stick out the more stones can be flung at the car.
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Old 10-12-2018, 09:50 PM
  #18  
Joec500
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Originally Posted by stout View Post
^ This is really something for 991.2 owners to consider.

I recently ran into this while trying to fit a set of aftermarket wheels to my 2018 Carrera. I was very happy with the stock wheels + 5mm spacers front and rear (didn't even really need the rears for the reason stated above), but what the Tire Rack and others said would fit ended up having unacceptable "poke" with N-spec Michelins (I'd be worried about the rear fenders...) and looked only a bit better with the "weaker" fall-away sidewalls of the N-spec Pirellis. Looking at Tire Rack's site and toggling between the same wheel for 991.1 and 991.2, it looks like most of the wheel industry missed the offset change. Rear wheels offered for the 991.1 and 991.2 are listed with the same offset. In my car's case, the stock rear wheel's rear offset is ET76 while the aftermarket wheels said to fit the car were ET62. That's like adding a 14mm spacer to a wheel and tire that already fills the fender rather nicely in the 991.2.

So what's good for the 991.1 is not necessarily gonna work on the 991.2. Several folks swore the ET62 wheel of the same size would work, and that others are running them on 991.2sóand I believe them, as there's a car in Europe that is, and is being trackedóbut it looked a bit juvenile to me real life and, in technical terms, +14mm makes me uncomfortable in this application. Much as I like the design and technical advantages of the wheel, I decided to stick with the factory Carrera S 20s for now. Custom wheel makers can of course account for the 991.2 offset change, but it may affect wheel design (which is why the factory 991.2 NB rear wheels are so flat-faced). My hope is that wheel makers will introduce proper rear wheels for the 991.2 with an ET of 72-74~ mmóas they already have the fronts. Otherwise, they're missing the other "half~" of the 991 market...and all Carrera T customers.

So...be sure to look at the offset of any wheels you consider, and remember that the spacer setups that work for a 991.1 may not work with a 991.2. I view 5mm as the max for the 991.2 NB rear, and have run the factory 5mm spacers all around. Visually, the front would look better with 7-10mm or even 12-14mm spacers, but I'd have to get comfortable with the technical impact of that before moving up from the factory 5mm spacers or maybe aftermarket 7mm spacers up front.
I am getting a set of Forged Monoblocks made right now from Rotiform. The prices are pretty competitive for a custom forged made in the USA wheel.

They have a GT3/GT4 style wheel called PGT.

http://www.rotiform.com/pgt-w-47283.htm

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Old 02-01-2019, 08:05 PM
  #19  
Cyberbug
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Ordered some spacers today, after doing some measurements on the car, ordered 17mm for front and 5mm for rear with appropriate Titanium Bolts.
On the T (991.2) the Rear is pretty good and close to the fender lip, so 5mm would be enough. but the front is almost 1.2" tucked in, so it needs a lot.

Opposite of 991.1
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Old 02-01-2019, 08:15 PM
  #20  
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Originally Posted by Cyberbug View Post
Ordered some spacers today, after doing some measurements on the car, ordered 17mm for front and 5mm for rear with appropriate Titanium Bolts.
On the T (991.2) the Rear is pretty good and close to the fender lip, so 5mm would be enough. but the front is almost 1.2" tucked in, so it needs a lot.

Opposite of 991.1
Nice, post pics once you have them mounted.
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Old 02-01-2019, 09:47 PM
  #21  
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Originally Posted by Cyberbug View Post
Ordered some spacers today, after doing some measurements on the car, ordered 17mm for front and 5mm for rear with appropriate Titanium Bolts.
On the T (991.2) the Rear is pretty good and close to the fender lip, so 5mm would be enough. but the front is almost 1.2" tucked in, so it needs a lot.

Opposite of 991.1
Please post pictures and where you ordered from soon.
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Old 02-01-2019, 10:03 PM
  #22  
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Originally Posted by bli8 View Post
Please post pictures and where you ordered from soon.
ordered from MaxSpeed Motorsports, great service

it will be a while till I get them on, weather and all

i was glad they had a set which fit my measurements
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Old 02-03-2019, 12:51 AM
  #23  
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5mm factory.
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Old 02-03-2019, 06:13 PM
  #24  
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Sorry I canít post photos from my phone but Iíll try.

I went with 15mm front and 5mm rear on my type II C4S. I also added a 315 R888R to rear and I still could have gone out 5mm more but am near perfect where Iím at on my Sport Chronology wheels. The fronts needed more than 15mm but plan to try to get a 265 up front if I can find something other than a Hoosier. Over all it looks dramatically better especially since adding the Eibach Sorings. I do wish the ride was maybe 5mm lower but like the handling results from eibach and techart and hr feedback did not sound good so happy with the choice.

spacers and bolts are black and also found security locks that work from FVD or something from Germany.
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Old 02-03-2019, 06:35 PM
  #25  
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Originally Posted by TXGold View Post

Sorry I canít post photos from my phone but Iíll try.

I went with 15mm front and 5mm rear on my type II C4S. I also added a 315 R888R to rear and I still could have gone out 5mm more but am near perfect where Iím at on my Sport Chronology wheels. The fronts needed more than 15mm but plan to try to get a 265 up front if I can find something other than a Hoosier. Over all it looks dramatically better especially since adding the Eibach Sorings. I do wish the ride was maybe 5mm lower but like the handling results from eibach and techart and hr feedback did not sound good so happy with the choice.

spacers and bolts are black and also found security locks that work from FVD or something from Germany.
Looks great. But what are the wheel specs? Gotta know width, offset and diameter to get a complete picture.

Also, thatís looks very tight in the front. I would think the tires would rub at full lock. No rubbing?
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Old 02-03-2019, 07:29 PM
  #26  
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TxGold LOVE the look sir!
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Old 02-04-2019, 05:33 PM
  #27  
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Originally Posted by Cyberbug View Post
Ordered some spacers today, after doing some measurements on the car, ordered 17mm for front and 5mm for rear with appropriate Titanium Bolts.
On the T (991.2) the Rear is pretty good and close to the fender lip, so 5mm would be enough. but the front is almost 1.2" tucked in, so it needs a lot.

Opposite of 991.1
I think 17MM will be too much. I test fit 15MM on my T and felt that they pushed the wheels out too much. I put on some 5MM that I had lying around and these certainly helped. I would go 10MM or max 12MM. I think the rear is perfect as is.
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Old 02-04-2019, 06:04 PM
  #28  
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Agreed. HRE's recommended fitment on the front of my 991.1 resulted in an increase of 12mm of offset and it looked just right to me (considering a combination of a half inch wider wheel and some additional offset: 9.5" and 45mm offset)
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Old 02-04-2019, 07:31 PM
  #29  
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Originally Posted by wbrownie View Post
I think 17MM will be too much. I test fit 15MM on my T and felt that they pushed the wheels out too much. I put on some 5MM that I had lying around and these certainly helped. I would go 10MM or max 12MM. I think the rear is perfect as is.
I felt that rear needed 5mm, so both our perceptions may be a personal choice.
But its easy to swap as needed. Right now the front gap is too much.
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Old 02-04-2019, 07:32 PM
  #30  
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Originally Posted by Cyberbug View Post
I felt that rear needed 5mm, so both our perceptions may be a personal choice.
But its easy to swap as needed. Right now the front gap is too much.
Cool. Looking forward to seeing how it works out.
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