275/40 18 rear fender rub
#21
TECH Junkie
iTrader: (7)
Join Date: Jul 2005
Location: MA
Posts: 3,934
Likes: 0
Received 0 Likes
on
0 Posts
17x9.5 wheels with 54mm offsets fit the car fine. It's ideal for the fbody. Shouldnt rub on inside nor outside.
The guys with corvette 50mm wheels who you are talking about probably had 17x11 inch wheels. I have these in my car. I put in a small spacer, did some BFH, and rolled my fenders slightly. 315/35/17 tires.
So what's the deal with your 275/45/18 tire? Did you mean to get a taller tire, or is that what the carid dope said was the right size?
The guys with corvette 50mm wheels who you are talking about probably had 17x11 inch wheels. I have these in my car. I put in a small spacer, did some BFH, and rolled my fenders slightly. 315/35/17 tires.
So what's the deal with your 275/45/18 tire? Did you mean to get a taller tire, or is that what the carid dope said was the right size?
#22
TECH Regular
iTrader: (4)
I don't know about why OP is running 275/40's, but I am because it is actually closer to the factory size than 275/35. When I did the calculations, they were slightly taller than the stock tires, where as the 275/35 was significantly shorter.
I can't remember by how much now, but I know it would have made my speedometer off by a good bit.
I can't remember by how much now, but I know it would have made my speedometer off by a good bit.
#24
TECH Junkie
iTrader: (7)
Join Date: Jul 2005
Location: MA
Posts: 3,934
Likes: 0
Received 0 Likes
on
0 Posts
275/40/17 tire diameter = 25.7 in
275/40/18 tire diameter = 26.7 in
275/35/18 tire diameter = 25.6 in
I'm getting this info from here: http://www.miata.net/garage/tirecalc.html
So I think the 35 is more appropriate and believe the combination between the extreme offset and the larger tire probably contributes to quite a bit of rubbing.
275/40/18 tire diameter = 26.7 in
275/35/18 tire diameter = 25.6 in
I'm getting this info from here: http://www.miata.net/garage/tirecalc.html
So I think the 35 is more appropriate and believe the combination between the extreme offset and the larger tire probably contributes to quite a bit of rubbing.
#29
On The Tree
Thread Starter
Join Date: Oct 2010
Location: Tupelo, MS
Posts: 167
Likes: 0
Received 0 Likes
on
0 Posts
Havent had a chance to roll my fenders yet, but I came across a cheap set of stock springs and installed them. So far so good. No rubbing yet. Haven't tried a launch yet.
#32
TECH Junkie
iTrader: (7)
Join Date: Jul 2005
Location: MA
Posts: 3,934
Likes: 0
Received 0 Likes
on
0 Posts
I agree that the offset is the biggest concern here but adding an extra inch doesn't help. Our cars have different tolerances. Some cars fit large tires fine, others don't. A taller tire bulges out in different spots compared to a shorter tire