Will It Fit Thread - Page 450 - RX8Club.com



Series I Wheels, Tires, Brakes & Suspension
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Old 02-12-2018, 09:31 PM   #11226
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Originally Posted by RotaryMachineRx View Post
You shouldn't have a problem with that size at stock height. Worst case scenario you may need a fender roll in the rear if lowered but at a 38mm offset you should have just enough clearance to get away without it. If you buy adjustable coilovers you won't need a fender roll for sure with minor camber.
Thank you, I really like these but we shall see how spendy i feel this summer after i do brakes. I was planning RPF1's because they're simple and i do like the look and there are some good deals on them every so often from users here. Thanks for your input!!
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Old 02-14-2018, 07:25 PM   #11227
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Originally Posted by Jacobrh_ View Post
18x9.5 +45 all around
or
18x9 +40 all around

probably 265 or 255 respectively
I'm lowered 1.75" front and 1.5" rear
-1* front and -2* camber respectively
thanks ahead of time
If you run 18x9.5 +45 with no spacers, then the inside of your rims (the metal, not the tire) will rub and grind against the steering arms at full wheel lock. Other than this it will work all around (the rear will be fine).

I'm currently running 265/40/18 tires on that exact rims size/offset with 20mm spacers and have no rubbing/grinding anywhere, but I also rolled my fenders and did a bit of trimming on the insides (the fender liners), as well as a small amount of flaring with the hub-mounted roller tool. See my pics above in this thread.

If you run 255/40's on this rim size/offset, you should probably be fine without any significant modifications.
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Old 02-14-2018, 07:33 PM   #11228
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Originally Posted by RotaryMachineRx View Post
^ IC, I may have mis-read, at those offsets you are more concerned with the inside corner of the wheel than the outside. See with my +30mm offset it is the opposite, with 265's I'm more concerned with outside edge of the tires rubbing on fender liners.
I see what you're saying and it's totally legit - running 18x9.5 +45 wheels with 265/40 tires on 20mm spacers (making it effectively a +25mm offset) definitely caused rubbing and took some modding (rolling/flaring) of my fenders and a bit of fender liner chopping to eliminate all the rubbing. Keeping in mind, granted, that my car is an 11-year-old salvage title, so I'm not exactly worried about its resale value at this point

I've heard it said that RX stands for "Rotary Experiment." This is exactly what my RX8 is; a perpetual experiment, a labor of love, a learning experience. When I pass it on, it'll be to another enthusiast for sure - definitely not a casual
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Old 02-14-2018, 07:37 PM   #11229
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Quote:
Originally Posted by OtherSyde View Post
If you run 18x9.5 +45 with no spacers, then the inside of your rims (the metal, not the tire) will rub and grind against the steering arms at full wheel lock. Other than this it will work all around (the rear will be fine).

I'm currently running 265/40/18 tires on that exact rims size/offset with 20mm spacers and have no rubbing/grinding anywhere, but I also rolled my fenders and did a bit of trimming on the insides (the fender liners), as well as a small amount of flaring with the hub-mounted roller tool. See my pics above in this thread.

If you run 255/40's on this rim size/offset, you should probably be fine without any significant modifications.
What rims are rubbing? The usual 18X9.5 +45 will fit with no rubbing issues

If you are running 18 X 265 profile tires you should be running 35 aspect sidewalls. The 40's make the tire too big around
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Old 02-17-2018, 08:36 PM   #11230
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Well some rims are shaped different so that always adds some differences why some rub at certain points and others don’t. Having run 18x10.5+43 without it rubbing on the tierod arms then where the wheel edge lands could have impact, such as if it come close where the wider tierod end/adjustment nut is vs extending further inboard where the thinner round extension arm is. Also whether the adjustments are centered properly relative to the steering wheel center positioning, such as if the sterring shaft u-joint was taken loose and then not centered properly. If it’s off on one side then it can crank over more in one direction than the other and cause a problem in that situation too.



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Last edited by TeamRX8; 02-17-2018 at 08:39 PM.
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