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Installed PS4S 265 & 305 tires with spacers - Need opinion
It was time for me to swap out the factory 255/35/19 F and 285/30/20 R Michelin PSS tires on my 2020 C63s Coupe, so I went ahead and installed wider 265/35/19 F and 305/30/20 R Michelin PS4S tires.
I was planning to get 275/35/19 tires on the front, but my shop wouldn't even order that size for the front factory wheel.
I was using 18mm spacer on the front and 15mm spacers on the rear with the stock PSS tires. This gave really nice stance.
With the new wider tires, I knew that I could no longer use the existing spacers.
I drove the car with new tires without spacers for few days, but I immediately felt that I needed to add some spacers to my new setup.
After countless hours of research, I decided to try 12mm spacers on the front and 5mm spacers on the rear.
Just installed the spacers today, and I really like the way rear turned out with 5mm spacers.
However, I feel like front is sticking out tiny bit too much.
I put a piece of cardboard paper on the fender dropping it straight down and the paper would touch the tire as shown in the picture below.
Tire is sticking out slightly more than the fender itself.
I also have stock suspension setup, so I think tire sticking out a bit somewhat also exaggerate the wheel gap.
Given the situation, should I continue using this 12mm spacer on the front, or should I downsize it to maybe 5mm?
I would say if you can find a 5mm or 8mm hubcentric spacer that will actually fit the on the hub, go with that.
From what I recall, you can’t go below 12mm or 10mm on our hubs. I’d be happy to be corrected, because I myself would love to run a 5mm upfront after I lowered the car and threw on camber bushings recently.
Your other potential option is getting a camber kit and running a bit more negative camber with that 12mm spacer. Not sure if it will work but worth looking into.
I would say if you can find a 5mm or 8mm hubcentric spacer that will actually fit the on the hub, go with that.
From what I recall, you can’t go below 12mm or 10mm on our hubs. I’d be happy to be corrected, because I myself would love to run a 5mm upfront after I lowered the car and threw on camber bushings recently.
Your other potential option is getting a camber kit and running a bit more negative camber with that 12mm spacer. Not sure if it will work but worth looking into.
5mm works well at least with coupe.
Our factory hub lip is somewhere around 12mm, so even with 5mm spacer, you still have about 6 to 7mm left on factory hub lip to center the wheel.
5mm works well at least with coupe.
Our factory hub lip is somewhere around 12mm, so even with 5mm spacer, you still have about 6 to 7mm left on factory hub lip to center the wheel.
what brand / where did you get these spacers? Assume they come with extended lugs?
what brand / where did you get these spacers? Assume they come with extended lugs?
I got my 5mm spacers from Otis Inc. https://www.otisincla.com/products/3310
Product picture has hub lip on it, but actual product is just flat spacer with no lip.
When ordering, you have to put in the note section which extended bolts you want to get with the spacers.
Following 35mm bolt works with 5mm spacer and factory wheel. https://www.otisincla.com/collection.../products/7223
Just had PS4S 305/30/20 (N0 porsche spec) installed on my 17 coupe, which is lowered on Eibach springs and running 20x11 +50 offset BC forged wheels. Terrible rub on low and high speed bumps. Even with suspension in sport+ (full stiff). I am coming from PS4S 295/30/20 with zero rub issues (never rubbed).
The right side is worse and looks to be rubbing on the top of the side wall.
How adjustable is the rear stock camber, caster and toe? I have a KMAC bushing kit on the front but IDEALLY don't want to install it on the rear (if I can get away with the stock adjustability).
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