Should I get 235 tires?
#1
Supreme Member
![](https://www.thirdgen.org/forums/images/ranks/tgo10.gif)
Thread Starter
Join Date: Jan 2001
Location: St Catharines, ON
Posts: 2,412
Likes: 0
Received 0 Likes
on
0 Posts
Car: '85 Z28
Engine: 350
Transmission: T5
Axle/Gears: 3.23
Should I get 235 tires?
No, I don't mean 235 individual tires... (you know someone would say it)
I'm getting new rear tires this summer, I'm not sure what size to get. I want to get 235 series tires, but do they hurt the handling due to the bulging sidewall?
Thanks for any info!
I'm getting new rear tires this summer, I'm not sure what size to get. I want to get 235 series tires, but do they hurt the handling due to the bulging sidewall?
Thanks for any info!
#3
Member
Join Date: Nov 2002
Location: westside michigan
Posts: 383
Likes: 0
Received 0 Likes
on
0 Posts
depends on the size of the rim, if you got a 15x7 wheel then it will bulge a little bit but wont hurt anything, if you got 16x8 then youll be fine, heck you can even run a 245 on a 15x7 wheel and be fine still, oh btw this thread should probably be in the suspension board and not apperance just a little fyi not being a dick or anything
#4
Supreme Member
![](https://www.thirdgen.org/forums/images/ranks/tgo10.gif)
Join Date: Mar 2000
Location: Orland Park, IL, USA
Posts: 1,468
Likes: 0
Received 0 Likes
on
0 Posts
Car: 88 IROC-Z
Engine: L98
Transmission: TH350
Axle/Gears: 3.45
WTF? What size wheels are you running?? Im running 255's out back on stock 16's without a problem and trust me, the bigger you go the better. 235's are actually a bit too small for our rims, unless you running 15's. I dont know what size they had stock. You can normally go one size larger and be ok though.
#5
Supreme Member
![](https://www.thirdgen.org/forums/images/ranks/tgo10.gif)
Thread Starter
Join Date: Jan 2001
Location: St Catharines, ON
Posts: 2,412
Likes: 0
Received 0 Likes
on
0 Posts
Car: '85 Z28
Engine: 350
Transmission: T5
Axle/Gears: 3.23
I have 15s,
quick question:
Will 235/60-15 tires be taller than stock? The front tires are 215/65-15.
quick question:
Will 235/60-15 tires be taller than stock? The front tires are 215/65-15.
Last edited by 85_ZED28; 01-22-2003 at 09:08 PM.
#6
Supreme Member
![](https://www.thirdgen.org/forums/images/ranks/tgo10.gif)
Join Date: Jan 2001
Location: Halifax, NS,Canada
Posts: 1,221
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1995 Z28
Engine: LT1
Transmission: Built 4L60E
Axle/Gears: 3.23's - Limited Slip
Tire sizing
-235 is cross sectoin width,
-60 means the height of the tire is in a ratio of 60% the cross section is the sidewall height.
-R, means radial,
-15 is size of rim.
Stock 215/65R15 Tire radius-->13.00 inches dia-->26.00 inch
New 235/60R15 Tire radius-->13.05 inches dia-->26.10 inch
So it will work out perfect for you.
-235 is cross sectoin width,
-60 means the height of the tire is in a ratio of 60% the cross section is the sidewall height.
-R, means radial,
-15 is size of rim.
Stock 215/65R15 Tire radius-->13.00 inches dia-->26.00 inch
New 235/60R15 Tire radius-->13.05 inches dia-->26.10 inch
So it will work out perfect for you.
#7
Senior Member
![](https://www.thirdgen.org/forums/images/ranks/tgo10.gif)
Join Date: Nov 2001
Location: Winnipeg, Manitoba, Canada
Posts: 927
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1983 Firebird S/E
Originally posted by 85_ZED28
I have 15s,
quick question:
Will 235/60-15 tires be taller than stock? The front tires are 215/65-15.
I have 15s,
quick question:
Will 235/60-15 tires be taller than stock? The front tires are 215/65-15.
Trending Topics
#8
Supreme Member
Join Date: Sep 2001
Location: north plainfield,nj,usa
Posts: 1,841
Likes: 0
Received 0 Likes
on
0 Posts
im runnin 205/60/15's up front and 255/60/15's in the rear and so far the only differnce i see over the 235's i had all around is that the back are wider.
#10
Supreme Member
![](https://www.thirdgen.org/forums/images/ranks/tgo10.gif)
Join Date: Mar 2002
Location: Toronto
Posts: 3,054
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1992 Camaro Z28 Anniversary Edition
Engine: 305 TPI
Transmission: Borg Warner 5-Speed
i am running 235/55/16s on my 92 right now, u can go to my cardomain to see pictures, they're all 235.....
http://members.cardomain.com/easyspeedcamaro
http://members.cardomain.com/easyspeedcamaro
#11
TGO Supporter
![](https://www.thirdgen.org/forums/images/ranks/tgo10.gif)
Join Date: Jul 1999
Location: Another world, some other time
Posts: 3,838
Likes: 0
Received 4 Likes
on
4 Posts
Car: 86 LG4 & 92 TBI Firebird
Engine: The Mighty 305!
Transmission: 700R4
Axle/Gears: 3.42
On a 15x7 rim, GM offered 235/60r15s as an option. I noticed better handling and traction when I switched from 215/65 to 235/60, both were Radial T/A tires.
#12
Supreme Member
![](https://www.thirdgen.org/forums/images/ranks/tgo10.gif)
iTrader: (7)
Join Date: Nov 2000
Location: michigan
Posts: 13,039
Likes: 0
Received 0 Likes
on
0 Posts
of course traction improves the wider the tire........that's why i went to a 295!
the 60 series seems high. i guess it's similar in relation to a 245/50. i just wouldn't want such a tall sidewall, more room for flex with 60% unlike a 50% or 55 if they make them.
i've got 235/60's on my gtp and i can't stand them compared to my old 245/50's. to much flex in the sidewall when taking corners.
the 60 series seems high. i guess it's similar in relation to a 245/50. i just wouldn't want such a tall sidewall, more room for flex with 60% unlike a 50% or 55 if they make them.
i've got 235/60's on my gtp and i can't stand them compared to my old 245/50's. to much flex in the sidewall when taking corners.
#15
Member
Join Date: Feb 2002
Location: Texas
Posts: 123
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1987 z28
Engine: L98
I think if you are very familiar with the way your car handles with the 215s, you might find the steering a little more sluggish due to the extra weight of the 235s. Has anyone else noticed this? My '82 Firebird came with 205 70r x 14 from the factory. I upgraded to 235 60r x 14. I noticed that the car felt more nimble with the seventy series tires. There might not be as much of a weight difference between the 215 65r x 15 to 235 60r x 15 swap though.
dave
dave
#16
Supreme Member
![](https://www.thirdgen.org/forums/images/ranks/tgo10.gif)
Thread Starter
Join Date: Jan 2001
Location: St Catharines, ON
Posts: 2,412
Likes: 0
Received 0 Likes
on
0 Posts
Car: '85 Z28
Engine: 350
Transmission: T5
Axle/Gears: 3.23
Thanks a lot for the help guys. I like the look of a bigger sidewall, and since they are pretty much the same hight, i'm sold
![Big Grin](https://www.thirdgen.org/forums/images/smilies/biggrin.gif)
#17
Supreme Member
![](https://www.thirdgen.org/forums/images/ranks/tgo10.gif)
iTrader: (2)
Join Date: Nov 2001
Location: Lakewood, CO
Posts: 1,602
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1994 Jeep Wrangler
Originally posted by Kandied91z
of course traction improves the wider the tire........that's why i went to a 295!
the 60 series seems high. i guess it's similar in relation to a 245/50. i just wouldn't want such a tall sidewall, more room for flex with 60% unlike a 50% or 55 if they make them.
i've got 235/60's on my gtp and i can't stand them compared to my old 245/50's. to much flex in the sidewall when taking corners.
of course traction improves the wider the tire........that's why i went to a 295!
the 60 series seems high. i guess it's similar in relation to a 245/50. i just wouldn't want such a tall sidewall, more room for flex with 60% unlike a 50% or 55 if they make them.
i've got 235/60's on my gtp and i can't stand them compared to my old 245/50's. to much flex in the sidewall when taking corners.
#18
Supreme Member
![](https://www.thirdgen.org/forums/images/ranks/tgo10.gif)
Thread Starter
Join Date: Jan 2001
Location: St Catharines, ON
Posts: 2,412
Likes: 0
Received 0 Likes
on
0 Posts
Car: '85 Z28
Engine: 350
Transmission: T5
Axle/Gears: 3.23
Last question:
Could anyone tell me the diameter of a 225/60/15 tire? Would it be taller than stock?
Thanks a lot!
Could anyone tell me the diameter of a 225/60/15 tire? Would it be taller than stock?
Thanks a lot!
#19
Member
![](https://www.thirdgen.org/forums/images/ranks/tgo10.gif)
Join Date: Dec 2001
Location: Sterling, ILL
Posts: 266
Likes: 0
Received 0 Likes
on
0 Posts
Car: 3 3rd Gen F-bodies and 7 others
Engine: 305 CFI, 350 TPI & 3.8 Turbo V-6
Transmission: all automatics (stock)
P225/60R15 = 25.6
P215/65R15 = 26.0
P235/60R15 = 26.1
I notice that some of you might not understand about tire sizes. A 60 series is going to be taller depending on the width of the tire. (205 vs. 255) The 60 is the aspect ratio, meaning that the sidewall is 60% of the width. That's why a 215/65 and a 235/60 are nearly identical in height, yet the 235 is wider.
P235/60R15 was an optional size on '86 Camaro's, but not '91-'92's that I've ever seen, although they work fine. This pertains to the 15" wheels, as I know P235/55's were stock on the 16" wheels. One other thing, if you have 16" wheels, it is advantagious to go to the P245/50R16 if you have P235/55's if you want a better performance tire. The 235/55 isn't made in many of the higher spped ratings that the P245 is made in. The highest I have seen in a P235/55R16 is an H rated (130mph). The Goodyear Eagle HP.
Not to give you a hard time, 1982 chevycamaroz28, but most times when you have a large variance in width from the front to rear tires, like 205 in front and 255 in back, it usually hurts your handling more than helping it. The 3rd gen is made to be a good handling car, and putting the back up high, hurts more than helping. This is a proven fact, not trying to flame you!! I know that putting the 255/60's or bigger might be for looks, or for more traction, so I'm not trying to flame anyone who has the big tires in back on 15" wheels. Everyone has their own style, and our cars wouldn't look as good if everyone kept them bone stock looking!
P215/65R15 = 26.0
P235/60R15 = 26.1
I notice that some of you might not understand about tire sizes. A 60 series is going to be taller depending on the width of the tire. (205 vs. 255) The 60 is the aspect ratio, meaning that the sidewall is 60% of the width. That's why a 215/65 and a 235/60 are nearly identical in height, yet the 235 is wider.
P235/60R15 was an optional size on '86 Camaro's, but not '91-'92's that I've ever seen, although they work fine. This pertains to the 15" wheels, as I know P235/55's were stock on the 16" wheels. One other thing, if you have 16" wheels, it is advantagious to go to the P245/50R16 if you have P235/55's if you want a better performance tire. The 235/55 isn't made in many of the higher spped ratings that the P245 is made in. The highest I have seen in a P235/55R16 is an H rated (130mph). The Goodyear Eagle HP.
Not to give you a hard time, 1982 chevycamaroz28, but most times when you have a large variance in width from the front to rear tires, like 205 in front and 255 in back, it usually hurts your handling more than helping it. The 3rd gen is made to be a good handling car, and putting the back up high, hurts more than helping. This is a proven fact, not trying to flame you!! I know that putting the 255/60's or bigger might be for looks, or for more traction, so I'm not trying to flame anyone who has the big tires in back on 15" wheels. Everyone has their own style, and our cars wouldn't look as good if everyone kept them bone stock looking!
#20
Supreme Member
Join Date: Sep 2001
Location: north plainfield,nj,usa
Posts: 1,841
Likes: 0
Received 0 Likes
on
0 Posts
well im not takin it as a flmae so i dont really care but im more into straight line racing and not autocross or anything. my car still handles like it did with the 235/60/15's all around. i just notice a bit more traction then before. and i know by raising the assend up it throws the center of balance off. im not goin for the 4x4 look or anything. im tryin to get my car to look good and also handle great in the 1/4 more then like an autocross course. if i was goin for handleing like on an autocross course id lower the car and put some nice wide tires all around.
#21
Member
![](https://www.thirdgen.org/forums/images/ranks/tgo10.gif)
Join Date: Dec 2001
Location: Sterling, ILL
Posts: 266
Likes: 0
Received 0 Likes
on
0 Posts
Car: 3 3rd Gen F-bodies and 7 others
Engine: 305 CFI, 350 TPI & 3.8 Turbo V-6
Transmission: all automatics (stock)
Cool, Thanks for not taking me the wrong way, but that makes sense for 1/4 mi. racing.
#22
Member
Join Date: Feb 2002
Location: Texas
Posts: 123
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1987 z28
Engine: L98
I created a simple excel spreadsheet where all I have to do is put in the tire size details, and it will calculate the tire heigth. It works for any rim size or tire series. I just enter different tire sizes and it'll tell me if it's taller or smaller than the tires that I'm running right now.
dave
dave
#23
Member
Join Date: Mar 2001
Location: plainwell MI US
Posts: 176
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1992 pontiac firebird
Engine: 305 tbi
Transmission: 700r4
I'm running 245/60 x 15 no handling problems other than they "hunt" a little bit when the pavement had dips worn in it.
The speedo's about 2-3 mph slow. 15x7 gold center aluminum wheels.
The speedo's about 2-3 mph slow. 15x7 gold center aluminum wheels.
Thread
Thread Starter
Forum
Replies
Last Post
LiquidBlue
Wheels and Tires
32
12-10-2019 04:06 PM