8" Fuchs with 21" Spacers

[BKLYNTARGA]

I am currently running 225/50 on 16X7 Fuchs with a 27mm spacer...No problem with fit at all...I am going to upgrade to 16X8 Fuchs...Will a 21MM spacer fit with the 8s and a 225 tire?

[widgeon13]

Might depend on your ride height. I had 21mm spacers on my car and went to 15mm. I thought it looked much better yet I know others who run 21's, no problem.

[Walt Fricke]

Glad to read it is 21mm, not the 21 inches in the title!

[Wil Ferch]

Do a search with my name and spacers, this was all gone thru before.

FIRST question?---> WHICH 8" Fuchs are you talking about?. The 944/951 pattern 8" Fuchs "sucks in" the wheel toward the car centerline about 1/2" more than the 911 pattern, 8" Fuchs. Report back. We can go from there.

[Wil Ferch]

See here....read carefully...post #13, #18--->

Anyone have 928 21mm spacers on a 911?

From the data...8", 911 Fuchs + 22 mm spacer ( if such size exists) is a practical limit but tire dimensions, camber, all affect this.

[BKLYNTARGA]

The 8" Fuchs are the 911 offset...I have read many threads....and it seems like the opinions vary....Does anyone out there have 8 inch Fuchs with 911 offset, 225/50/16 installed with 21mm spacers..If so would you be kind enough to show me a pic..thanks

[widgeon13]

This thread has a pic of my Chiffon Carrera with 21mm spacers and 225/50x16's.

Wheel spacer

As I said, they seem to fit but in my opinion were just too far outside the fender flare and so I went w/ 15mm. I have heard some folks say they like the look. I thought it didn't look original, actually looked stupid IMO.

Hope that helps.

[widgeon13]

This is the pic.

[widgeon13]

This is 911 offset 8x16 (225/50 Dunlop Sport) on Fuchs w/15mm spacer.

[stephens_kj]

Wow, looks a really clean car for somewhere with so much snow.

[widgeon13]

Thanks, It doesn't get driven in the snow and that pic was two+ years ago as well but it still looks very clean. It's sort of put away for the winter right now.

[BKLYNTARGA]

Thank you for the pics!

[Wil Ferch]

BKLYNTARGA

I don't get it....if you read both posts I link....and "triangulate" all the numbers.... you will see reports back from others of what didn't work....and reports back from those of what did work...then you will get yourself a range of spacers that should work without a problem.

Of course, when you reach "max fitment" things get a bit dicey. Camber, ride height, tire profile and if its square or round-shouldered tire. Still...It's all there.

8", 911-pattern Fuch should be able to use as big as 21-22 mm spacers, with a "typical" 225/50-16 tire...and still be OK. Good thing, too...as 21 mm is a factory 928 piece ...is available...and should give you the quality you want too.

[Wil Ferch]

Let's get down to specifics....from the linked post, I summarized other's findings this way->

Outside edge "vertical plane" locations/equivalents:

7"Fuchs = base
8" Fuchs = 7"Fuchs + 25mm
9" Fuchs = 8"Fuchs + 10 mm
9" Fuchs = 7"Fuchs + 35 mm

Also, from the link:
8"Fuchs + 25mm spacer = "not good"

From Jeremy:
9" Fuchs + 12 mm spacer = "good"

...basically an 8" Fuchs places its entire extra width "toward the outside" compared to where a 7" Fuchs would it.

In your own opening remarks, you say... " I am currently running 225/50 on 16X7 Fuchs with a 27mm spacer...No problem with fit at all...I am going to upgrade to 16X8 Fuchs...Will a 21MM spacer fit with the 8s and a 225 tire?.."

So...lets put these both together and see what we have--> If you have 27 mm spacer with no problems at all.....that is the same as saying you are running an 8", 911-pattern Fuchs with 2mm spacers, since the 8" is 1" ( ~25mm) wider than a 7" Fuchs on the outside edge. The link info also says 8" Fuchs with 25mm spacers is "no-go". If that's true...then 27mm you have plus 8" Fuchs is a "no-go". Same as saying a 7" Fuchs with ~50mm spacers is a "no-go. From all the reports, we triangulate all the numbers...notice this part?--->

(from the link)---> So....9" Fuchs+12 mm spacer = OK
that means 8" + 22mm spacer = OK ( limit)
that means 7" + 47mm spacer = OK ( limit)

From all this..it seems your opening questions can be answered... a tight and marginal, "yes". From the other pictures of this thread, it seems a 15 mm spacer would be "safer" but 21-22mm should be "maximim-doable". Kinda interesting, a 8" 951 Fuchs with 27mm spacer is therefore the same effect as a 8", 911 Fuchs with a 15mm spacer.

[BKLYNTARGA]

Will thanks for your help...


I have one more question...When transferring a tire from a 7 inch to 8 inch wheel...does the section width of the tire increase exactly one inch.? If not we would have to take this into consideration...Correct?


Paul

[Wil Ferch]

I think Bill Verburg is the "guy" when it comes to commenting on the "pinch" factor....how the rim width affects section and tread width. Good luck....

Don't forget...a big factor on how "good" the math answer works ( 22 mm spacer for 8")...is the camber you run, the ride height, and the square/round shoulder profile of the tire you choose. All this becomes more important as you search out "max" fitment. 15mm seems "safe"....22 mm seems "do-able" but crowding things. Also the brand/model of tires...my 225/50-16 Bridgestone S0-2's were amongst the fattest of the 225's...getting real close to the width of the "skinniest" 245's out there !

[chris.817]

These are Bridgestone Potenza RE050As. Not very low and about -1 Deg camber under stock as I recall. Not an issue at all.

[Wil Ferch]

Chris:

The link I posted shows someone else having bad luck with a 25mm spacer and 8" Fuchs. I will also say, your own (red) car shows the outside tread perilously close to the fender lip, and the projected arc of a tire moving up on a bump looks scary. Unless of course as the wheel travels up on a bump...that the top-edge gets "sucked in" due to massive camber change and/or rubber suspension bushings allowing some extra clearance. A good "bump" nonetheless looks like it can inflict some serious fender damage.

From my posts and Widgeon13's photos (white car)....we may all be best served with 15-21mm spacers as safe-max for this application.

YMMV.

[chris.817]

Yeah Wil, I hear you. I was actually looking for more lke 20mm but all I could find were 25's. As I said, I really do not rub. My car is still pretty close to factory height and a decent amount of negative camber. The tread is not as close as it looks in this picture.

I use 9' wheels and no spacers at the track.