Speed Rating... Did I Make a Mistake?

[NismoDriver240]

I may be freaking out over nothing, but with this I'd definitely rather be safe than sorry.

I just purchased 2 used, but in amazing condition 215/70r15 tires with an S speed rating, good for 112mph. I'm intending to put them on my 1993 240sx Hatch. I'm only going to use this as a DD to work and back, 10 minutes down the road, no highway, and occasional 1 hr one way highway drives to my g/f's. My average highway speed is roughly 80mph. Should I sell these and find others or will I be ok until I can afford a whole brand spankin new wheel and tire package?

I'm not going to be making these 1 hour highway drives daily, just like once a week or so. If they're rated for 112 mph and I keep pressure perfect on good days and like a little less on hotter days to make up for the expansion of air would I be ok?

Thanks

[gumby74]

You will be fine.As you bought them used this will buy you some time to put some coin away for some new(er) and better tires.

[NismoDriver240]

thats what i thought but i knew it would be better to double check. definitely buy me some time.

thanks!

EDIT:

Free sig!! got bored lol


Modified by NismoDriver240 at 1:14 AM 5/11/2008

[916drifter]

215/70/15? serious? thats hella tall and wide if yer on stock rims... even on aftermarkent 70 is waaaaay too tall...sell them and get some bettter ones...plz?

[NismoDriver240]

i have 205/65 on there now... to my understanding the first number is the width, and the second number is the percentage of the first number equals the sidewall height correct?

like: x/y=z z=sidewall height

if i'm right in saying that then: 205/65=3.15 and 215/70=3.07 UNLESS you subtract that number from x.... damn, i hope not lol, then 205/65 sidewall=201.85 and 215/70=211.93. even then, i think i'll be ok. i'll find out monday when they're mounted

wow... i'm in a math-y mood, i dont want to be, at all

[916drifter]

im a math geek too but damn dood your thinking waay to much into it. honestly stick to just 60 series and 205 width. you dont want to go taller and wider...bad combo... if u go 215 at least the max would be 50 or 55 sidewall.

[gumby74]

That sig is cool as **** mister!I would have prefered a side shot of the car until I realized that is an actual picture of my car. (kinda creepy dude, but I like it, and appreciate it).

[NismoDriver240]

haha set it as your sig lol. yea im a creeper but with near 1000 posts i knew you had to have some pics of your car on here somewhere so i looked around real fast

[sileighty85]

you should sell those tires and get the correct size and speed rating tires because those tires can throw off your odometer and the can make your ride suck.

i'm not sure if you're wear that your not suppose to down grade on the speed rating, but up grade or stick with the stock spec speed rating. the reason is because the lower the speed rating has weaker side wall and the load index number is lower. also, your suppose to stay as close as possible to the stock rim/tire size diameter.