Tire Question

[mat82284]

i decided since its winter to just buy new tires because mine are getting bald. I have 3.73 gears in my car (came installed with car) wish i didn't have them, but cant justify the difference by paying $300 to remove them. I have is i have the stock 17x8 rim bullet wheels just chromed, and i wanted to fill up the gap between the tires a little bit more, i was thinking of buying 255/50/17 tires to help with this.

How are these tires are they good?
http://www.discounttiredirect.com/di...35&rd=17&ar=50

I used this tire calculator and it comes up as only 5.3% difference and was told not to go over 5%. A advantage to this is it would make my car 5.3% slower which will lower my rpms by 3mph on freeway. Not such a big deal, Just thinking it can help with gas by 1mpg and help with the look to fill up the wheel well, I have stock springs and would lower but my roush kit is really low already and i cant lower it because my school has huge speed bumps just to park, and i barely hover above them. What do you guys think should i be fine? or should i stick with stock tire size?

http://www.miata.net/garage/tirecalc.html

 

[mat82284]

I guess know one knows?

 

[FoxRod87]

Why do you hate the 3.73s? And putting a bigger tire will fill the wheelwell up a little but might not be enough to notice and you should get the same gas mileage or it will not be enough to notice.

 

[mat82284]

I would be doing it mainly to feel up that gap between the wheel well. Thats the main reason, I have a predator so i can adjust me speedometer for it. I was just thinking it could benafit in 2 ways, one lowing my gear ratio a little, two feeling up that gap that looks ugly. Do you know how it would run on the car? I know the 05+ models are 255/55/17 rims so i dont see why i cant run 255/50/17

 

[BurningRubber]

A larger tire will aid in filling the gap a little bit but it will add to the overall ground clearance to the car... as in, its going to raise the actual car higher by going to a larger diameter tire.

As far as the RPM difference it will be very small... You can run those tires though if you chose.

 

[Mustang5L5]

and i wanted to fill up the gap between the tires a little bit more, i was thinking of buying 255/50/17 tires to help with this.

Just stick with the stock size. Filling the gap by increasing sidewall height never works. In fact it makes it look worse because it actually raises the car up slightly making it look like it needs to be lowered even more.

 

[Scorcher2005]

Dont do it. Lie they said, it will actually raise the car and make it look WORSE. Also, a 5% difference would mean instead of going 60 mph you are now going 63mph at the same rpm. Not a big difference.