So I need some suggestions for tire setup on my rpf1's that are 18x10.5 +15 all around. From searching it seems that most are running a 265/35/18 all around. I am only lowered on eibach prokits so i want some tires that will close up the gap if possible. Any feedback would be helpful. Thanks in advance.

 

265/35 front and 285/35 rear is what i would try.

 

I have Advan rims that are 18x10 +19 offset. I run 265/40/18 up front and it doesn't touch the fender, but if I hit a dip and it fully compresses, it does touch the wheel well liner by 1 or 2mm. The rear tires I am running 285/40/18 and had to cut the fender lip(I actually completely cut the inside lip off versus rolling). With that done, I I have about 10mm of fender clearance on full tucked compression.

I ride on Hotckis springs, (15mm front, 19mm rear drop), Rear camber set at 1.0 degree negative, 0.08 degree positive toe.

With your 15mm offset, you can clear 255/40/18 front, and 275/40/18 rear no problem. Though I suggest rolling your rear finder inside because that lip intrudes about 3/4".

 

255/40 275/40

 

^ /thread

 

I dont get why people stagger their tires on a square set up.

 

+1 It looks weird with one tire fat and one with a slight stretch.

 

Because it comes from the factory with a "square" setup and staggered tires.

But I'm just saying. Who really know....oh....VDC anyone?

 

Im running 19x9.5 275/35 square and no VDC issues at all.

 

True, it does look strange with the rears having a more "fuller" appearance. The reason why I didn't square it was because I kept my original tires upon switching rims. My rear tires are basically bald right now so I will go back to squaring out the tires and running hubcentric spacers in the back to fill it out better.

 

Thinking about going 275/35/18 or 265/35/18 front and 275/40/18 rear. Does this seem okay?

 

If you are going to run that close of a tire size just make it the same on all 4 so then you can rotate them. you will notice almost no difference in running a 265 in the front and a 275 rear. on an 18x10.5 i would run an 275/40

 

285/35's....................................../thread.

 

275/35 front and 275/40 rear will be a sweet setup. Thats basically what i'm running right now.

 

it would be nice to have a square tire setup but I want something a little bigger in the rear so that it can close the gap a little better

 

Will I rub upfront with a 275/35 with only a 1 inch drop?

 

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

 

With -1.8 camber you won't.

 

Sorry to bring this back up but how does 265/40/18 all around sound? Will it rub?