Rulaxin12

Just installed my new carrera s2 wheels on my 997.2 c4s. Had them powder coated satin platinum which I think looks great.

I had hr 7mm front and 15mm rear spacers with my previous wheel setup but now with the nb wheels, the rears look too tucked.

any downside to running a 30mm spacer? Any major issues?




The Fuchs are the old setup and sit nice and flush, the satin platinum carrera s2 wheels are the nb wheels.

Petza914

If running a spacer that large, you need the kind that bolt to the hub and then the wheel bolts to the spacer. I run 25mm versions of these on my Cayenne. They also have to have the hub centric centering flange and the cuout for the hub side and the lip for the wheel size need to be exactly 71.6mm. The spacer should have some resistance when being bolted to the hub and the wheel shouldn't just slip over the flange withiut any resistance. If either one does, you'll have high speed vibrations as the lug bolts can't prevent miniscule amounts of movement of these pieces aren't perfectly made. Adaptec Speedware will maje you a set in whatever thickness you want and H&R may have a stock offering in this width in their DRM style which is what you'd want.

While you have the wheels off, check your rear rotor thickness. The one in the pictire looks like it has a fsueky large wear lip on it and may be below the minimum thick ses spec, which if my memory serves me is 2mm below the new thickness spec.

hexagone

Politely, but thats not true.

As long as the spacer is hubcentric and bolts long enough, both kinds of spacers do the same job.

Petza914

They do until the 59mm long lug bolt fractures in half, then only one of them does the same job.

hexagone

All the bolt (should be) doing is fastening the wheel to the hub of the spacer. The load is distributed between the hub, spacer, and hub of the wheel - not the bolt.

All I'm saying is that using spacer design which bolts to the hub is not some black/white rule that if spacer > 30mm then must be attached to hub. Plenty of offerings on both sides.

Petza914

All I'm saying is there's a right way and a less than right way to do something like this. The very long bolt from a slip on style spacer can bend under acceleration braking or cornering loads - Teslas with high initial torque are shearing off spacer studs because of this.

I'm not alone in my opinion...

https://www.m3post.com/forums/showthread.php?t=1338171

https://www.vintage-mustang.com/thre...pacers.538909/

Also, it doesn't matter if it's a long stud that uses a lug nut or a long lug bolt that screws through the spacer into the hub




And if you still don't believe that one method is better than the other, just look at the H&R website for their entire spacer line where they don't offer and non-bold on spacer beyond 20mm in width.
https://www.hrsprings.com/products/detail/trak

Sporty

OP - will you be selling those "Fuchs" now? Personally, I like they they look on your car more so than the other (new) ones, but that is just me

Rulaxin12

Thank you both @hexagone and @Petza914 it is your guys knowledge and contributions that make the community special.

I’ll look into the adapter style ones!

Rulaxin12

I agree Fuchs look just sooooo good. I think if the cs2 were wb fitment it would be a tough call, but the Fuchs really work well with the gts pse exhaust tips and basalt car. The black chrome hits really make for a nice package. I am likely not going to sell the wheels sorry. If I do that I will let you know first!

southbay

For reference the factory rear spacers for sport wheels on a WB are 17mm, however the wheels won’t be flush. As long as they’re quality spacers that are properly installed, threadlocker-ed, and torqued to spec you’ll be ok with the type @Petza914 posted.

okbarnett

agree, dont use studs that long, use extension spacers
I dont think you need more spacers, I think you need to lower

Rulaxin12

agreed. If only my driveway wasn’t so steep!

Rulaxin12

In other threads people mention stressing the wheel bearing or hubs? In my head that makes sense but at what thickness is it okay to? 17mm as oem uses that?

southbay

It would be easier to explain visually, but my understanding is the leverage is dependent on the distance of the tire’s contact patch from the hub. Therefore if they have the same tire sizes, essentially the spacer will be doing what the Fuchs are doing.

Recruiter_Bruno

I run a 25mm spacer on my rear to bring the 997.1 GT3 wheels flush with my WB.
But like Petza mentioned it is an adaptor style so that I just use regular length bolts.
No issues at all.
I wouldn't hesitate to recommend them.

But in full disclosure I remove them when I go to the track as my track setup is designed for wide body....