Widen rpf1 17x11.5 +63 295/35/17 kumho xs
#31
Site Moderator
And if you are going with 18's you may as well just buy forgestars since they can make them in these kinds of widths and offsets and the overall price is around the same once you factor in widening the wheels. The tire issue is really the Achilles heal of this setup. With only 1 street tire available you better have some wheels for the street or something as if they don't make this tire in the new run you will forced to go with hoosiers which are not safe for the street and would likely need overfenders.
#32
Why widen a wheel when a 9.5" +50 or 55 (can't remember which mine is) 18" can be shod with a 275 35 and it fit fine with just a fender roll and rear bumper screw relocate. Shit if I had an 11" wide wheel I would want a 315ish on that bad boy. Oh and my car is lowered. Not that everyone agrees here but I run a 315 on my 10" wide stock wheel for my jeep srt8. Fronts are 9" wide and run a 275 on those.
#33
Registered User
Structural integrity would be my only concern with something like this. The wheel would have to be welded absolutely flawlessly for there to be no loss in strength. Unfortunately, a wheel failure could mean a very serious accident, so the risk is pretty high.
#34
Why widen a wheel when a 9.5" +50 or 55 (can't remember which mine is) 18" can be shod with a 275 35 and it fit fine with just a fender roll and rear bumper screw relocate. Shit if I had an 11" wide wheel I would want a 315ish on that bad boy. Oh and my car is lowered. Not that everyone agrees here but I run a 315 on my 10" wide stock wheel for my jeep srt8. Fronts are 9" wide and run a 275 on those.
He wants to run a 295 tire which is the limiting factor in fender clearance. You might as well run an 11" or 11.5" wheel to use the tire to it's full capability. We are talking about wheel width/offset down almost to the mm, no off the shelf fitment available. If you were limited by WHEEL width and wanted to pinch the widest tire possible, then that is a different story.
#35
Thread Starter
I don't think so. I have been rolling on my wided oem ap2 rims for years now with about any issue. Widening and narrowing wheel is actually very common. Lots of the land speed guys run widen/nor reared rims from this guy.
#36
Thread Starter
Originally Posted by SlowTeg' timestamp='1413987704' post='23378664
[quote name='RedCelica' timestamp='1413982866' post='23378595']
do you think that the structural integrity of the wheel has been compromised at all?
do you think that the structural integrity of the wheel has been compromised at all?
No risk no reward. Cool to see some following in my footsteps and some others considering, not that widening wheels is anything new, but doing it on an S2k with the mentioned tire option, is. Just consider the mentioned reasons for doing this, there is no point if the wheel can be had off the shelf to accommodate an average sized tire that would otherwise fit by other measures. And also consider that this 295 in a 17 may or may not be available in Kuhmos new XS replacement. No other manufacture currently makes a 295/35/17 and the current XS run has been discontinued since 08 with all known replacements now gone off the shelf. The v720 will be your only potential option to run this size tire starting in spring of 2015. so if anyone is considering doing this, wait till then to insure you have a tire.
The better option I think at this point would be to just run 18"
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What rim setup are u running in the front?
#37
Thread Starter
Why widen a wheel when a 9.5" +50 or 55 (can't remember which mine is) 18" can be shod with a 275 35 and it fit fine with just a fender roll and rear bumper screw relocate. Shit if I had an 11" wide wheel I would want a 315ish on that bad boy. Oh and my car is lowered. Not that everyone agrees here but I run a 315 on my 10" wide stock wheel for my jeep srt8. Fronts are 9" wide and run a 275 on those.