20" rims on rear of 986 Boxster - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Johnny Danger · 12-30-2010, 12:39 PM

What happened to all of the responses to this thread ??

harryrcb · 12-30-2010, 01:07 PM

That's because no one knows for sure, To most of us it doesn't make sense to put 20" on a Box, but if you are determined to do so, go ahead and do it. Make some careful measurements, you can get the outside dimensions from tire rack as to diameter and width of the tires on wheels and make sure you get the correct offsets. I daubt (again I don't know ) that you will be able to fit 10" wheels on the back. Good Luck

Johnny Danger · 12-30-2010, 01:18 PM

Quote:

Originally Posted by harryrcb

That's because no one knows for sure, To most of us it doesn't make sense to put 20" on a Box, but if you are determined to do so, go ahead and do it. Make some careful measurements, you can get the outside dimensions from tire rack as to diameter and width of the tires on wheels and make sure you get the correct offsets. I daubt (again I don't know ) that you will be able to fit 10" wheels on the back. Good Luck

Oh, well, I thought that there were some pretty insightful answers given to this topic.

p.s. A 10 inch wheel will fit on a 986 . However, offset is important.

brian325is · 12-30-2010, 01:27 PM

There are several 20" wheels listed on ebay for the Boxster. 20x8.5 front and 20x10 rear.

The problem lies in that the sidewall of the tire becomes very thin at that diameter. Ride quality and durability deteriorate.

I also think that for a proper look 19 inch is the max for the car, Anything else starts to look cartoonish.

RandallNeighbour · 01-01-2011, 06:45 PM

Quote:

Originally Posted by brian325is

Anything else starts to look cartoonish.

You mean like THIS?

Topless · 01-01-2011, 07:18 PM

Here you go. Boxster purists avert your eyes:

http://74.6.117.48/search/srpcache?ei=UTF-8&p=porsche+boxster+20+wheels&fr=yfp-t-892-s&u=http://cc.bingj.com/cache.aspx?q=porsche+boxster+20+wheels&d=4695443090178270&mkt=en-US&setlang=en-US&w=ecfb8650,66e7a123&icp=1&.intl=us&sig=KNYodc1QySeNOXkrIkWvig--

Please excuse me now. I just threw up a little in my mouth.

harryrcb · 12-31-2010, 12:23 PM

Quote:

Originally Posted by Johnny Danger

Oh, well, I thought that there were some pretty insightful answers given to this topic.

p.s. A 10 inch wheel will fit on a 986 . However, offset is important.

I didnt' think that a 20 x10 would fit, I have 18 x 11 on my car but I did flare the fenders out. Learn something everyday..

Adam · 12-31-2010, 12:32 PM

The wheel diameter doesn't matter (except if you go smaller then you can have caliper clearance issues) What is important is the wheel width and the offset and overall tire diameter. As long as you stay within the correct width/offset range and keep the outside tire diameter close to stock you'll be fine.

Johnny Danger · 01-01-2011, 09:12 AM

Quote:

Originally Posted by harryrcb

I didnt' think that a 20 x10 would fit, I have 18 x 11 on my car but I did flare the fenders out. Learn something everyday..

Are you sure that you are running an 11 inch wheel on the rear ? Throughout all of my experience with wheel applications, using an 11 inch wheel on a 986 boxster seemed impossible .

yellowboxster01 · 01-01-2011, 06:19 PM

I'm not sure why you'd want to put a 20" wheel on a 986...? I also don't think it would clear without either running a 20-25 sidewall or rolling the fenders in the rear.

harryrcb · 01-02-2011, 01:41 PM

QUOTE=Johnny Danger]Are you sure that you are running an 11 inch wheel on the rear ? Throughout all of my experience with wheel applications, using an 11 inch wheel on a 986 boxster seemed impossible .[/QUOTE]
YES I'm sure. beside it being stamped in the wheel I measured it. Like I said I had to flare the fenders in order to avoid rubbing the tires during DE but I ran them on the street for a while without flares. stuck out about an inch.

jmatta · 01-06-2011, 02:40 PM

Harry, your car is sitting quite high in the before pic...have you lowered since installing the flares? I know you track it, so I assume it was raised just to fit the wheels initially. I've always remarked you can fit almost any size wheel/tire combo if the spacers are correct and the car is ready for the Dakar Rally.

Johnny Danger · 01-06-2011, 02:47 PM

Quote:

Originally Posted by harryrcb

QUOTE=Johnny Danger]Are you sure that you are running an 11 inch wheel on the rear ? Throughout all of my experience with wheel applications, using an 11 inch wheel on a 986 boxster seemed impossible .

YES I'm sure. beside it being stamped in the wheel I measured it. Like I said I had to flare the fenders in order to avoid rubbing the tires during DE but I ran them on the street for a while without flares. stuck out about an inch.

[/QUOTE]
Fender flares would explain it .