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The wheels on the picture are Lindseys 9 & 11 x 17" with 255 and 315 respectively. Don't recall the backspacing but can look the paperwork and let you know - if you want, but believe 6 and 7. Selection of tires is and will be there, 17" are not going away, you're right not much variaty but enough to choose from; right now I'm running Summis = pretty good for the money, however there are also GY, BF, Dunlop... Regarding the speedo, not significant change but who cares?
Old 11-13-2008, 06:29 AM
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Are there any rubbing issues at all? Thanks....
Old 11-13-2008, 08:39 AM
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No rubbing issues at all while moving on the street or track, the only rubbing - minimum - is when locking/max the steering to either side. The rubbing occurs on the back side of the front fender wells with the inner side of the tire shoulder (not the fender lip or top of flair). Solution = don't park in tight places, who does anyway?
Old 11-13-2008, 09:14 AM
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Here is another option
the **UNOFFICIAL** Jeff Alton fuch my 930 thread
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Old 11-13-2008, 03:14 PM
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Quote:
Originally Posted by Miguel Antonett View Post
I'd go with fuchs 17"
It just can not get any better to my eyes! I may have a new wall paper.

Yes, if you have the specs please.

Do you think you could have run 11.5" our back?
Old 11-17-2008, 08:02 PM
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I'm not sure if you could go 11.5 on the rear w/o some mods (i.e. moving oil lines or rolling the fender lip...) I've seen up to 12 on the rear.

I'll get you the specs this weekend.
Old 11-18-2008, 05:00 AM
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I have 17 x 11.5 in the back and it's tight on the left side even though I thought with the oil lines the problem would be on the right. Both my right side fenders seem to be about a 1/4" farther out.
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Old 11-18-2008, 07:23 AM
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Not unusual, our cars' fender flairs were welded by hand generating - in some cases - some differences. A 1/4" is border line but generally acceptable; unless there is some history with the car...
Old 11-18-2008, 07:58 AM
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315's have a recommended rim width range of 10.5-12.5".

Am I giving up much running to the more narrow of the range?

I do not mind rolling the fenders. Not big on relocating oil lines.


It looks like these rims should come in at what close to the same weight as a factory set of 7&9's. This keeps the added weight to mostly what the bigger tires added.

If this is true, a set of 7&9/16 Fuchs w R888's running 205/245's compared to these w 255/315 goes from a total wheel weight of about 166 to about 188 lbs using Toyo R888's.

The rpm per mile for 245/16 at 24.4", to 315's at 25.6" goes from 850 to 812. Or about a 4% gearing difference in this example.

This may be of little impact on a 400hp turbo.

However, on a 217hp Turbo Look will this seem noticeable or significant with 4% higher gearing and 12% more rolling weight?

Is this to much tire to heat up at a DE event on a turbo look?
Old 11-18-2008, 08:52 AM
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All your points are valid.

JFYI, I struggled for years with the bigger wheel/tire combo decision mainly because my car was a "parade" winner back in 80 and I did not want to modify it, in addition to all your issues. I finally did it several years ago and I don't regret it a bit, other than I should have done it sooner. Improved handling, better ratio, great stance.

It is the way to go!
Old 11-18-2008, 10:19 AM
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You always want to run the widest wheel you can. I think 12" would be possible but will probably require rolling at least one fender.

I think the stock Fuchs are around 15-16 lbs each and my 17 x 9 & 11.5 are 19 & 20 lbs each.
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Old 11-18-2008, 02:49 PM
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about 2.5" is going to be about 10% bigger so 10% off the speedometer. So from a speedo standpoint in regards to mister policemiester...I'd say about an inch is doable. But honestly, 10% is a pretty easy math problem on the fly
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Old 11-18-2008, 05:50 PM
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