I bought a set of gram light R57GT from Andy, the size are 20x9.5 +25 / 20x10.5 +20. Andy recommended me 255/30 and 285/30 or 255/35 and 285/35. Just curious what othes think about tires size, I kinda like the lambo /porches style. I am pretty noob when it comes to tires size, especially this is my first sets of 20’s. I expected to have my fenders slightly rolled but nothing crazy.



thanks

 

wow amazing wheels, i am not a tire guru, but if andy recommended that then go for it and put them on your car and pic asap!!!!!

 

Can you provide a side view picture of your car? What type of suspension setup,
springs? coils? I don't think you'll need a roll without spacers.

 

my car is bone stock right now, wheels wont be on untill summer since i am in IL and before that i need coilover,bbk and tires. next step is to purchase tires, in a month or 2. do u think i be able to run 275/35 and 315/35

 

yes you can run that wide with alot of fender rolling and trimming of some bits i have 315 on a 9in wide wheel but its a 17" wheel not a 19 youd be close with a 35 series

 

You should disclose a little bit more information when you quote your 315 tire on a 17x9 wheel. i.e. that it is not for a daily driven set-up.

 

no

 

are there any more aggressive set up that you recommend? should i just go with what andy suggested 255/35 and 285/35?

thanks

 

I would use a tire calculator: http://www.dakota-truck.net/TIRECALC/tirecalc.html

Call me old fashioned.

 

To be honest, the 20s are out of my area of expertise. I only quote what I've had experience with, and since I know that the 275/30/19s on the front of my Z were snug, I don't have confidence that the taller sidewall (275/35) combined with the taller wheel (20" vs 19") is going to fit.

As for the rears, same deal. I know my 305/30/19s fit nice and cleanly, but would only be speculating on if the 315/35/20 would fit without rubbing at a +22 offset. My inclination is to say that it won't, but I've seen people squeeze crazy set-ups in awe. I suggest you pick up a cheap 20" tire or two from Ebay or CL and test-fit before you spend big money on tires if you want to go outside of Andy's recommendations.

 

thanks for your help, i am sticking with Andy's suggestion.

thanks bro.

 

To stay in spec, you want 255/30/20 & 285/30/20. That's what everyone should be running on 20" wheel combos that are 9-9.5" front and 10-11" rear. The only exception would be if you're savage offsets and need to run aggressively stretched tires, or conservative offsets to fit really wide tires.

 

thanks bro.

 

Thank you for wasting davidv's time. If you have any questions don't hesitate to let him know.

 

awwww, i am sorry if i woke you guys up in the middle of the night