FFaust

Ah the beauty of living in winter-land, there's just no rush to get anything, including tires, in a hurry. Lotttts-o-time.

TRAKCAR

If you are stuck I can bring you my fronts and maybe some one has 305's you can borrow?

Izzone

Is there someone at sebring to mount?

I will let you know.....I will see if John @ ccw has any rear r888.....my fronts are 4/32 still. I can run up to dayton a and borrow some of his tires

TRAKCAR

Mounting no problem.
Let me know and I toss in extra's tomorrow.
I'll ask around for rears.

Acropora

Saw this post here lurking to learn about the 7 GT2. Just an FYI, R888's come with a big consumer alert tag on them. If they are exposed to freezing temperatures at any time they can DELAMINATE while you're driving on them. I had to toss two good sets out after reading that. No way I'm taking a chance on a tire failing at 150+ mph. :P

e46 zcp

If John doesn't Appalachian Race Tire did as of a few days ago, Rodney has never let me down with accurate shaving as well, plus his shipping prices are tough to beat.

fc-racer

Unshaved RA1's and R888's are a waste of time and money. They're scary under braking, snap spin if pushed hard and your lap times will be >1 sec slower than usual. They're a waste of money because you pay $300 for a track day and spend the day alternating between tip-toeing around and spinning. I'll never use an unshaved Toyo tire again!

Izzone

Tires left Atlanta last night and showed up today.......

Shaved

Izzone

Mine are all shaved to. 3/32

mdrums

Actually unshaved R888's are not bad at all...compared to unshaved RA1's. I feel that R888's when new to mid-life are stickier than RA1's. The RA1's seem to stay sticky almost to the cords.

Izzone

I was talking to a guy I work with, Scott ......said he is your neighbor

Small world

I keep working on him to sell the zoo and get a gt3

mdrums

Yeah Scott lives 1 house down. I got him going to the track now and his wife too. Now they are working on getting my wife to do some DE's or at least AutoX.

giorgioerrani

Hi guys,
I understand the reasons why you are moving from 19" to 18" tyres

but why are you using wider tyres either front (245 or 255) and rear (315 or 335) against standard recommended dimension (235 f - 305 r) ??...

Are you not finding you loose too much speed against a small extra-grip benefit ??
Thanks for answers.

mdrums

If you want to use 18's for the track and you want to maintain the same overall diameter as stock 19's...you need 245/40/18 and 305/35/18....for 997 version cars...yes the fronts are a little wider that stock...but not much and it helps at the track.

Others will use 255/35/18 and 315/30/18...maintains same front to rear diameter ratio though s ABS doesn't freak out...this sizing is smaller than overall 19" diameter but the thought or therory is that this essentially lowers the car some, gears it down some for better acelleration and the sidewall is the same size as stock 19's so you will have less side wall movement and the stock shocks package is tuned for this shorter sidewall...plus yes they are wider thus putting more rubber to the ground.

which is better on a 997 car? who really knows...there is no back to back testing that's ever been published so as of right now this is personal preference.

I am seeing more and more new 997.2 GT3 and GT3RS going to the track with stock 19" sizes...and some claim that the shock/suspension package is tuned for 19" wheels/tires....

I wish I had a definate answer and same day test data to comfirm which is really better...stock 19's or 18's in the 2 different sizes.

deputydog95

I'm still running 19's with the Toyo's, but would prefer 18's for the variety of tire choices and less cost.