I'm going to be getting some 16x7 wheels soon, and I'm wondering what tire sizes I should run. I'm thinking of running Toyo RA1s or R888s depending on price and availability.

I know the RA1s have limited sizes. I have found 205/55/16 would that be an ok size. Other than that, the next size seems to be a 225/50/16 and i'm not so sure if that would fit or not.

My car is lowered about an inch on H-sport springs, and I have a Madness rear sway bar.

recommendations please.
Thanks

 

I haven't looked at the available sizes for R888, but based on RA-1 sizes - if you haven't bought the 16" wheels yet, look for 15" or 17" wheels. There is more tire availability for 15" and 17" than there is for 16".

 

JCW brakes

 

15's will fit JCW brakes. That's my set up....

 

Will the R81 fit JCW brakes? I didn't think it would...

 

That's the holey for those who don't know and/or can't remember the wheel codes. Sorry I forgot to put that in there

 

i already have gotten a hold of some 16s. So i'm trying to find out what tire sizes i can go with using Toyo RA1s.

 

Get the new Toyo R888. The BMW track guys have been giving high praise to those tires as an improvement to the already fantastic RA1. The RA1 won't be available much longer.

 

i dont think the R888 comes in 16... do they?

i had 2 sets on 16s... kumho V710, great in autox, but gets greasy very quickily, also, they lasted half a season

2nd set, hankook VENTUS Z214, i loved it in 205/50-16,

 

yes they do. Looks to be all the same sizes as the ra1s.

http://marktg.toyotires.com/file/30029.pdf

 

R888 is OK. With 16x7 rims and one inch drop from H-sport springs-

Use 225/45-16 tires since tire diameter is 23.8" and smaller than stock for lowered gearing and better clearance. 21 lbs is light as well.

205/55-16 and 225/50-16 are both taller than stock at 24.7" and while they will fit they weigh more and give taller gearing.

 

There wouldn't be any clearance issues with the 225?

 

that's my worry too because if i had known that i wouldn't hv sold my 16; track wheels setup!

 

Went to Radial Tire in Silver spring, md. he recommended the 225/45 16 as well.

I looked at the tire sizing chart on a toyo spec sheet, the overall diameter is 1 inch less than the tire i'm running now, which is 215/45 17, but it's also a half inch wider

 

ok, so the next thing it seems i need to take care of are the lug bolts for the car. I need to get tuner lug bolts to fit my new wheels.

I'm apparently on the border of the switch over from the 12mm to the 14mm. So I will be pulling a bolt out to measure.
It's looking like that the 12mm has a thread size of 1.50
While the 14mm have threads 1.25
Is this correct?

anyone know of a good place to get tuner lug bolts?

 

Yes, you are correct.
12x1.5
or
14x1.25

If you have 14mm bolts you can use conversion stud kit to bring it back to 12mm then use any aftermarket rim you want.

Careful with any open end tuner lug nut since corrosion can happen that will lock the nut to the stud- happens sometimes over about 1 year if not watching.

see
http://www.txwerks.com/servlet/Categ...el+Accessories

There are also other sources for light weight aluminum closed end nuts that will fit, 949racing.com and tirerack.com have them. Titanium nuts are super expensive but very light.