S550 tires

[Mike A]

Hey I'm currently running stock 235 tires a Cobb stage 1 res muff delete and drop in CL filter on my 10 speed performance pack Ecoboost convertible. Did a 0-60 on transbrake of 4.9 seconds. It does quite a bit of spinning I'm the beginning but pulls. I'm just wondering how wide of a tire I should get to maybe run 4sec. Or would that require a down pipe etc. I'm just think if I didn't spin so much I would be low 4's. Any thoughts on this?

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[dn1984]

you don't want to run a wider tire than the max recommended for your wheel width, that could actually be detrimental. i would start to look into the stickiest summer tire in your size first

 

[NightmareMoon]

technically, the tire will specify the minimum wheel width, going the other way wheel to tire is just a rough guideline.

Go as sticky as you can for the wheel you’ve got.

If you want to upgrade wheels you can go as 11” (or wider) and even cram a 345 tire in there if you’re feeling adventurous.

 

[Dave TBG]

I'm not sure what size wheels the 235's come on, 8" maybe? While I agree that you need stickier tires and that the tires will have a minimum width, I'm not sure that your question has been answered. If you are asking what will fit on your current wheels, you should be able to get a 255 onto an 8" wheel, maybe a 265. If it's 7 or 7.5" you may have to go smaller. Find a sticky tire you like and find out what size wheel is recommended.

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