2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
Sponsored by:

245's will fit on the rear rim right?

Thread Tools
 
Search this Thread
 
Old 05-05-03, 03:37 PM
  #1  
pei > caek

Thread Starter
 
dr0x's Avatar
 
Join Date: May 2002
Location: Mars
Posts: 4,643
Likes: 0
Received 0 Likes on 0 Posts
245's will fit on the rear rim right?

245/50/16 will not rub anything on the rear of our cars using the stock rim right?
Old 05-05-03, 04:06 PM
  #2  
SCCA Rookie

 
Barwick's Avatar
 
Join Date: May 2001
Location: Sterling Heights, MI
Posts: 1,936
Likes: 0
Received 0 Likes on 0 Posts
if you can fit it on the stock rim, it'd probably fit. 225's is pushing it.
Old 05-05-03, 04:06 PM
  #3  
Eat, sleep, work, mod.

 
jon88se's Avatar
 
Join Date: Jun 2001
Location: Long Island
Posts: 2,517
Likes: 0
Received 0 Likes on 0 Posts
try a 245/45 - thats already a meaty meaty tire...the 45 series will look better than 50's bc the 50 series ratio means the sidewall will be a little larger on an already large tire. u should JUST be able to squeeze them on

Last edited by jon88se; 05-05-03 at 04:17 PM.
Old 05-05-03, 04:23 PM
  #4  
pei > caek

Thread Starter
 
dr0x's Avatar
 
Join Date: May 2002
Location: Mars
Posts: 4,643
Likes: 0
Received 0 Likes on 0 Posts
Originally posted by Barwick
if you can fit it on the stock rim, it'd probably fit. 225's is pushing it.
Im not worried about the rim. Im worried about the tire hitting the spring.

Wont a 45 series tire throw my speedo off? Plus then technically I should get a 45 in the front. I dont know how sensitive the ABS computer is. The rears would be spinning faster than the front.
Old 05-05-03, 04:31 PM
  #5  
Full Member

 
Join Date: Apr 2003
Location: NV
Posts: 98
Likes: 0
Received 0 Likes on 0 Posts
I have 235/45/17 on my rear and I think I can go 245/45.
Old 05-05-03, 05:06 PM
  #6  
Full Member

 
Join Date: Aug 2001
Location: Mass
Posts: 233
Likes: 0
Received 0 Likes on 0 Posts
The 245 and 16 are measurements, the 45 or 50 (or whatever you end up with) is a ratio of the hieght of the sidewall to the width of the tire, so as you use an increasingly wide tire, you need a smaller ratio to maintain the same height.

for example, if I wanted to use a 245 width tire on on my stock TII rims (or any 16" rims) I'd use a 45 ratio tire.

stock is 205/55/16, so 205*.55 = 112.75

and 112.75/245 = .46021 which is much closer to a 45 ratio then 50

Of course this is all theory, using such a wide tire on the stock rims will cause the to be bowed in quite a bit, maybe enough that to get back to the stock height you'd need a 50 ratio.
Old 05-05-03, 08:43 PM
  #7  
SOLD THE RX-7!

 
Scott 89t2's Avatar
 
Join Date: Mar 2001
Location: Vancouver, BC, Canada
Posts: 7,451
Likes: 0
Received 0 Likes on 0 Posts
205/55 (stock) 225/50 and 245/45 are all the same diameter..

but I really wouldn't run 245 on stock 7" wide rims... you'd have more rubber on the ground with 225's as the would be flat.
Old 05-05-03, 09:02 PM
  #8  
Eats, Sleeps, Dreams Rotary

iTrader: (1)
 
Turbonut's Avatar
 
Join Date: Feb 2002
Location: NJ
Posts: 3,960
Received 54 Likes on 44 Posts
I ran 245 x 50's on the back to fill out the wheel well. No problem. Specs for that tire is a rim width of 7"-8.5"
245 x 45 needs a rim 7.5"-9". Ran them with 215 x 55 on front. Just a word of caution. Try and keep the diameter fairly even front & rear.
Old 05-06-03, 12:14 AM
  #9  
Eats, Sleeps, Dreams Rotary

iTrader: (61)
 
87GTR's Avatar
 
Join Date: Aug 2001
Location: Nago Okinawa
Posts: 3,103
Likes: 0
Received 1 Like on 1 Post
I have
235/40/17 front 8 inch wheel
255/40/17 rear 9 inch wheel




Old 05-06-03, 12:28 AM
  #10  
REINCARNATED

iTrader: (4)
 
Relisys190's Avatar
 
Join Date: Apr 2003
Location: South Eastern USA
Posts: 1,642
Received 140 Likes on 98 Posts
^^^^ BADD *** CAR.. Very well done. and those rims look great.


I am running 225/50/15's all the way around on stock rims, i do not get rub, nor does it throw my handling off. I need a wider rim though, cause 225 on a 6" wide rim is pushing it. I would like to get convert rims (i want to stay 15") because they are 6.5" wide :-)

-Markus
Old 05-06-03, 12:46 AM
  #11  
STUCK. I got SNOWNED!!!!!

iTrader: (7)
 
Terrh's Avatar
 
Join Date: Mar 2002
Location: Windsor, On
Posts: 8,722
Received 13 Likes on 9 Posts
I've seen 245s on a stock S5 TII rim... Are they a little wider? 245s are beefy.
Old 05-08-03, 11:14 AM
  #12  
Full Member

 
BhamBill's Avatar
 
Join Date: Feb 2001
Location: Bellingham, WA
Posts: 242
Likes: 0
Received 0 Likes on 0 Posts
87GTR - What offsets are you running front and rear with 8 & 9" wheels? Thanks.
Old 05-08-03, 11:21 AM
  #13  
Eats, Sleeps, Dreams Rotary

iTrader: (61)
 
87GTR's Avatar
 
Join Date: Aug 2001
Location: Nago Okinawa
Posts: 3,103
Likes: 0
Received 1 Like on 1 Post
Originally posted by BhamBill
87GTR - What offsets are you running front and rear with 8 & 9" wheels? Thanks.

both are +35 offset
Old 05-08-03, 11:41 AM
  #14  
Banned. I got OWNED!!!
 
jcina7's Avatar
 
Join Date: Jan 2002
Location: east brunswick, NJ
Posts: 148
Likes: 0
Received 0 Likes on 0 Posts
is that a carbonfiber hood?
Old 05-08-03, 12:55 PM
  #15  
Senior Member

 
Join Date: Mar 2003
Location: miami florida
Posts: 454
Likes: 0
Received 0 Likes on 0 Posts
damn guyz im running 275/40/18 in the back
and 215/35/18 in the front but wanna get bigger tires in the front or it will rub

ofcource me and 87GSR are gonna have bigger tires cuz of our rims
and i know my offset nust be wayyyy off on speedo ratio
anyone know what the offset would be?
like how off it makes speedometer
Old 05-08-03, 01:00 PM
  #16  
Currently Winning

 
$150FC's Avatar
 
Join Date: May 2002
Location: Birmingham, AL
Posts: 2,438
Likes: 0
Received 0 Likes on 0 Posts
i have a set of 16x7.5s. I'll either have 225s all around or 245s in the back and 225s in the front.
Old 05-08-03, 01:37 PM
  #17  
Eats, Sleeps, Dreams Rotary

iTrader: (1)
 
Turbonut's Avatar
 
Join Date: Feb 2002
Location: NJ
Posts: 3,960
Received 54 Likes on 44 Posts
Crazy: FYI
The offset has nothing to do with speedometer error. Different size (diameter) tires will vary the speedometer.
Old 05-09-03, 09:35 PM
  #18  
Rotary Freak

 
Jerk_Racer's Avatar
 
Join Date: Feb 2001
Location: Okinawa, Japan
Posts: 2,149
Likes: 0
Received 0 Likes on 0 Posts
If you want wider tires then get wider wheels. Don't be so cheap. All because they will physically fit the wheel doesn't mean that they be using the contact patch to it's best use.
Old 05-09-03, 10:43 PM
  #19  
pei > caek

Thread Starter
 
dr0x's Avatar
 
Join Date: May 2002
Location: Mars
Posts: 4,643
Likes: 0
Received 0 Likes on 0 Posts
Originally posted by Jerk_Racer
If you want wider tires then get wider wheels. Don't be so cheap. All because they will physically fit the wheel doesn't mean that they be using the contact patch to it's best use.
Not that its any of your business, Im getting 17x9's later in the summer/year. However "what rims should I get with this tire combo" was not an asked question.
Old 05-10-03, 12:18 AM
  #20  
Rotary Freak

 
Jerk_Racer's Avatar
 
Join Date: Feb 2001
Location: Okinawa, Japan
Posts: 2,149
Likes: 0
Received 0 Likes on 0 Posts
My bad. I'm sorry I assumed that much. It's just a reflex after seeing umpteen million posts asking "what's the widest tires I can put on my wheels" and the wheels in question are 6" or 7" stock widths when all they want to hear is some absurd answer like "yeah, 335's will be cool on those 5.5" rims".




All times are GMT -5. The time now is 11:06 AM.