Suspension/Wheels/Tires/Brakes

The Official FC Wheel Fitment Thread

Old Jun 25, 2008 | 10:13 PM
  #3276  
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I am looking at two different sets of wheels, wondering which will work best. I am not apposed to using spacers if I must.

18x8 +25 offset
18x9 +20 offset

17x8 +35 offset
17x9 +35 offset

These will be going on an '87 TII that currently has stock suspension, but will be upgrading at least to springs, possibly coilovers.

Thanks!!
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Old Jun 25, 2008 | 10:33 PM
  #3277  
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Originally Posted by Roen
you may want to look into the tire specs for that answer.
what do you mean? sorry for the newbness but im not sure what your telling me to do
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Old Jun 26, 2008 | 04:47 PM
  #3278  
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I meant, you should do some research on what the numbers mean, and then check the manufacturer's spec sheet to see if the tires you're asking about will fit the wheels, based on my recommendations above.

Tire Rack (www.tirerack.com) is a good place to start learning how to read tire sizes.
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Old Jun 26, 2008 | 04:48 PM
  #3279  
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Originally Posted by smcmr2
I am looking at two different sets of wheels, wondering which will work best. I am not apposed to using spacers if I must.

18x8 +25 offset
18x9 +20 offset

17x8 +35 offset
17x9 +35 offset

These will be going on an '87 TII that currently has stock suspension, but will be upgrading at least to springs, possibly coilovers.

Thanks!!
I like the 17's, as I think the 18's may stick out of the fender, depending on the tire size you run.
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Old Jun 28, 2008 | 05:50 PM
  #3280  
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anyone? will 18x8 wheels with a 50 mm offset work with 225/40's in the front 245/40's in the rear?
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Old Jun 28, 2008 | 05:55 PM
  #3281  
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Originally Posted by Templeton
anyone? will 18x8 wheels with a 50 mm offset work with 225/40's in the front 245/40's in the rear?

nope... you would need an offset down near 35-30 to fit an 8" wheel up front... you could run a 15-20mm spacer
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Old Jun 29, 2008 | 11:21 AM
  #3282  
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Ideal and Minimum offsets to clear both front and rear suspension for 10 inch wheels, with 275 mm wide tires?
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Old Jun 29, 2008 | 12:00 PM
  #3283  
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How about these with spacers and fender rolling on an '87 TII:

Front Wheels: 18×9JJ Offset +38

Rear Wheels: 18×10.5JJ Offset +39

PCD: 5X114.3 lug pattern.

If so, can I put 245's on the front and 275's on the rear? Am I just dreamin'?
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Old Jun 29, 2008 | 02:23 PM
  #3284  
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^ 15mm spacer up front and 5mm spacer in back
and fender rolling of course.
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Old Jun 29, 2008 | 10:19 PM
  #3285  
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SWEET!! 245/40R18's and 275/35R18's???
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Old Jun 29, 2008 | 10:35 PM
  #3286  
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SWEET!!! So 245/40R18's and 275/35R18's will work?
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Old Jun 30, 2008 | 11:07 AM
  #3287  
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The guy above you is rolling on 17x9 +24 up front w/ 255's and 17X10.5 w/ 275's rear. Its more then just a roll, its a pull also (notice the lips on his fenders?). But yeah, it can be made to fit.

~Mike..............
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Old Jun 30, 2008 | 12:04 PM
  #3288  
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Originally Posted by RacerXtreme7
The guy above you is rolling on 17x9 +24 up front w/ 255's

I would like to see a picture of the strut/spring clearance on this setup.. not saying it can't be done, I just think it will be very very very tight... maybe less the 5mm

At these tolerences, I am sure it is dependant on the actual rim, tire and strut manufacture used.
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Old Jun 30, 2008 | 02:57 PM
  #3289  
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This is all good info. Seems that there's no true way to go into this fully prepared. I just don't want to get stuck with a set of wheels I cannot use....
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Old Jun 30, 2008 | 06:01 PM
  #3290  
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Originally Posted by BASTARD
I would like to see a picture of the strut/spring clearance on this setup.. not saying it can't be done, I just think it will be very very very tight... maybe less the 5mm

At these tolerences, I am sure it is dependant on the actual rim, tire and strut manufacture used.
Yup, its very close. couple mm at most. they happened to fit in my case, but different coilovers and different tire models affect clearance.
i'm now on 245's, and i can post an inside pic of that if you want (no reason for the change in size- i just found a good deal on these tires)
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Old Jul 1, 2008 | 02:35 AM
  #3291  
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I was wondering what tire sizes is recommended for; F: 17x8.5+30 R: 17x9.5+33
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Old Jul 1, 2008 | 10:03 AM
  #3292  
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Originally Posted by Josh18_2k
Yup, its very close. couple mm at most. they happened to fit in my case, but different coilovers and different tire models affect clearance.
i'm now on 245's, and i can post an inside pic of that if you want (no reason for the change in size- i just found a good deal on these tires)

What suspension setup are you running?
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Old Jul 1, 2008 | 04:44 PM
  #3293  
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Originally Posted by smcmr2
What suspension setup are you running?
tein flex. i couldnt tell you if other tein coilovers fit the same, much less other brands.

Originally Posted by ~Rev Free~
I was wondering what tire sizes is recommended for; F: 17x8.5+30 R: 17x9.5+33
Stock fenders-
225/45/17 Front
245/40/17 Rear

Rolled/Pulled fenders-
245/40/17 Front (very little clearance with coilovers. 235 is a safer bet)
275/40/17 Rear
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Old Jul 1, 2008 | 08:20 PM
  #3294  
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From: Gresham, OR
Originally Posted by BASTARD
I would like to see a picture of the strut/spring clearance on this setup.. not saying it can't be done, I just think it will be very very very tight... maybe less the 5mm

At these tolerences, I am sure it is dependant on the actual rim, tire and strut manufacture used.
wanted to follow up on this for you guys. i took a pic, and yes the clearance is really close.. but you'll notice in my case, that its the rim protector thats closest, and the actual tread of the tire has some room. these are 245's in the pic, but 255's fit also because only the top part of the tire leans in.
wheel is 17x9 +24
now if you picture the spring being further down the shock body, it looks liek that might actually rub. tein flex's happen to have the perch in a good place (for 17's), but other coilovers may be very different.

i fit a 2mm alan wrench between the perch and the rim protector (closest part). the area between the meat of the tire and the bottom of the spring is at least 6mm (didnt actually measure).

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Last edited by Josh18_2k; Jul 1, 2008 at 08:27 PM.
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Old Jul 1, 2008 | 10:52 PM
  #3295  
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Originally Posted by Josh18_2k
wanted to follow up on this for you guys. i took a pic, and yes the clearance is really close.. but you'll notice in my case, that its the rim protector thats closest, and the actual tread of the tire has some room. these are 245's in the pic, but 255's fit also because only the top part of the tire leans in.
wheel is 17x9 +24
now if you picture the spring being further down the shock body, it looks liek that might actually rub. tein flex's happen to have the perch in a good place (for 17's), but other coilovers may be very different.

i fit a 2mm alan wrench between the perch and the rim protector (closest part). the area between the meat of the tire and the bottom of the spring is at least 6mm (didnt actually measure).

looks like some tire rubbing going on when the tires flex during turns
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Old Jul 1, 2008 | 11:28 PM
  #3296  
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those may be from back when i had 255's on 17x8 +30 wheels.
i checked the current tires, and theres no sign of any rubbing on the tire itself.
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Old Jul 2, 2008 | 10:05 AM
  #3297  
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From: alabama
4.5 bolt pattern

Hey Guys,

I am new to the RX7 world as I just bought a super nice 88 GTU. I have done a search and have been unable to find an answer as to whether a 4.5 bolt pattern will fit. I know stock is 114.3 which comes out to something like 4.503 which sounds close enough but I figure I need the knowledge of those smarter than myself! Thanks!
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Old Jul 2, 2008 | 10:16 AM
  #3298  
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114.3mm / 25.4mm = 4.5" Yes, its a 4.5" bolt pattern.

~Mike.................
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Old Jul 2, 2008 | 11:09 PM
  #3299  
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Will these fit? I didn't see any posts for 19" wheel fitment.
Going on stock FC.
Prob need spacers?
tirerack recommends 215 sized tire


19x8.5 and 9.5 +20 offsets front and rear
255/35/19 and 285/35/19
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Old Jul 3, 2008 | 09:54 AM
  #3300  
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Can you get smaller aspect ratios?
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