Widest tire on s197?
12-14-2008, 04:19 PM
#11
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a) no way in hell are they 10 inches smaller than stock... maybe 10mm. As for feeling like you lost 25 hp, I'm gonna call BS. I have 285's out back and it feels perfectly fine. I will agree that 275 is probably as wide as you "need," but on a 10" wide rim, I'd go with at least a 285 tire. I know there are guys that run 315's on these cars, but I'm not sure if they stick out a whole lot. I'd be hesitant to go that wide on a 10" rim, though... If it was an 18x11, then yeah, go for it, but you're going to be pinching your sidewalls with a 315 on 18x10's. I'd go with a 285/40/18 or 295/40/18 in your case.
If you didn't notice a slow down with 285s then your butt must be made of that material nasa uses to make astronauts resist 3gs of force on their take off.
I would go with:
http://www.tirerack.com/tires/tires....SPORT&i3_Qty=2
The thing is though that a set of these would destroy anything. oh well.
http://www.tirerack.com/tires/tires....RE01R&i1_Qty=4
12-14-2008, 06:19 PM
#14
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The tire needs to be the correct circumference otherwise it will change your mph reading on your car also besides that it can completely change your gearing due to affecting your final drive ratio, it can also create very strange handling by effecting your rake, for example with a smaller rear tire you create ridiculous amounts of oversteer. If it's too big it will also rub your wheel well.
12-14-2008, 06:30 PM
#16
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The tire needs to be the correct circumference otherwise it will change your mph reading on your car also besides that it can completely change your gearing due to affecting your final drive ratio, it can also create very strange handling by effecting your rake, for example with a smaller rear tire you create ridiculous amounts of oversteer. If it's too big it will also rub your wheel well.
12-14-2008, 06:41 PM
#17
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Now why would the 285 reduce performance? I thought weight affected performance. if you had two tires @30lbs and one was a 245 and other was 285 they should perform the same.
They would reduce your performance, significantly, it would be like loosing 25 hp due to their width. I wouldn't go with anything more than a 275 on your car.
300 rwhp = 275
450 = 305
600 = 325-335
Furthermore besides that point they are 10 inches smaller than stock. You'd need a 315/40/18 or a 305/40/20 because actually those look like 20" foose wheels.
300 rwhp = 275
450 = 305
600 = 325-335
Furthermore besides that point they are 10 inches smaller than stock. You'd need a 315/40/18 or a 305/40/20 because actually those look like 20" foose wheels.
12-14-2008, 06:48 PM
#18
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Most people here have a tuner to adjust their speedo. If it is to big yes it will rub your wheel well, but if you do your research before you purchase a certain size, you will find out what rubs and what doesn't with your particular offset. As long as people do their homework, there is nothing wrong with running a wide tire.
I didn't want to say anything to not call him out, but yeah.
I'm not talking about width, I already talked about that, i'm not talking about a wide tire.
Also if you're measuring offset to help you prevent rubbing then it's probably going to rub every once in a while anyway and you should just go with a smaller tire.
Last edited by Legion5; 12-14-2008 at 06:53 PM.
12-14-2008, 06:56 PM
#19
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12-14-2008, 06:58 PM
#20
S197 Section Modder-ator
Join Date: Sep 2007
Location: Orlando FL
Posts: 13,373
You guys confuse the sh#t out of me...
Legion, 25hp loss? Don't think so.
Tires/wheels are the most PITA to deal with when you don't have a reference point to start with...
Going wider and keeping the same diameter wheel is the challenge at hand, while getting the right offset. Tire places like Discount tire etc... have a chart that tells them the diameter of every tire size and the max tire width you can go on a particular rim, so they're the guys to consult for those issues. For the offset, you'll have to rely on the ruler.
I have 20x10s in the back with a 285/30 tire on a +48 offset rim.
They recommended 275 but I didn't want none of that, so I went 285 and should have gone 295 actually.
It's a biatch to get it right the first time...
Sometimes, I wish I owned a tire place.
Legion, 25hp loss? Don't think so.
Tires/wheels are the most PITA to deal with when you don't have a reference point to start with...
Going wider and keeping the same diameter wheel is the challenge at hand, while getting the right offset. Tire places like Discount tire etc... have a chart that tells them the diameter of every tire size and the max tire width you can go on a particular rim, so they're the guys to consult for those issues. For the offset, you'll have to rely on the ruler.
I have 20x10s in the back with a 285/30 tire on a +48 offset rim.
They recommended 275 but I didn't want none of that, so I went 285 and should have gone 295 actually.
It's a biatch to get it right the first time...
Sometimes, I wish I owned a tire place.