Kevin Doe

iTrader: (1)

All,

I am picking out tire sizes right now. I'm have to options. I'm going with Falken RT-615s.

Rear is going to be a 275/40/17 (25.6" diameter)in both options.

Front is either a 245/45/17 (25.6" diameter, perfect match)
or
255/40/17 (25.0" diameter)

The pros of the 255 front is more grip, and a smaller diameter. So less rubbage, or more clearance, however you want to look at it.

Potential cons of hte 255 is that there will be a difference in diameter, causing the front and rear to be rotating at different speeds. This could possible cause a problem with the ABS system.

Will a difference of 0.6" on the diameter cause the ABS to not function properly?

Thanks,
Kevin

rynberg

No. Perhaps it wouldn't be 100% optimal, but the increased tire grip over stock tires would more than offset any slight penalty. You do NOT want to run a tire that tall up front (25.6"), unless you like replacing fender liners and wiring harnesses.

Kevin Doe

iTrader: (1)

Thanks for the reply.

So you'd recommend the 255/275 combo I listed?

Or is there another tire manufacture that makes a comprable tire in different sizes that you'd recommend?

paul_3rdgen

iTrader: (6)

the size you are mentioning really is 275/35/18

paul_3rdgen

iTrader: (6)

The size you are mentioning really is 275/35/18, I have been looking at the same tire combo

Kevin Doe

iTrader: (1)

No, I'm looking at the 17" sizes.

paul_3rdgen

iTrader: (6)

****, didn't notice that.....stupid me I have to learn to read!!

Kevin Doe

iTrader: (1)

The reasons I'm looking at the 17s as opposed to 18s are:

1. Wheels are cheaper.
2. Tires are cheaper.
3. Wheels and tires are lighter.
4. Roads in Cincinnati suck, and I'd likely kill the wheels with potholes if I had 18s.

rynberg

Well, you didn't list the wheel size/offsets you are running. The 255/275 is fine. A lot of people also run the 245/40 and 265/40 combo. The RT-615s are super grippy tires, pretty much anything else is going to sacrifice dry grip for better longevity and/or wet weather handling. I'm looking at the RT-615s for the Bridgestone 01Rs for my next set.

Kevin Doe

iTrader: (1)

I've had RT-615s on another car, and I love the tires. they were 225s on an AWD talon, so traction wasn't a problem.

I'm going with Enkei RPF1s

From Richie if he has any left.
17x9 +45 front.
17x9.5 +38 rear.

I need as much tire as I can get. I have quite the potent motor in the car. LS1 swap with a rowdy cam.

paul_3rdgen

iTrader: (6)

I heard those tires are **** in the rain, care to comment? I want to buy a set but just want some real world experience or opinion from people who have used them.

Kevin Doe

iTrader: (1)

Acutally, from my experience, the tires are pretty damn good in the rain. Most other UHP or Max preformance tires I've used have horrible wet traction. I was surprised how well they gripped in the wet. I never had any hyrdoplane problems, or anything weird like that. Other passengers in my car have also commented how grippy they are in the rain.

paul_3rdgen

iTrader: (6)

Cool, thanks.....sorry for getting off topic but I needed to know.

2MCHPWR

iTrader: (2)

kevin, if this was a track only setup, i'd run the 17x9 +45 all around; then you can use 275's all around.

I also run 255-40-17 front and 275-40-17 615's.
no issues found yet but i haven't put too many miles on them yet, and my car isn't too low.
these are my street tires, but will also be used on the track if it rains.
http://209.177.55.37/tires.htm

Kevin Doe

iTrader: (1)

I just ordered this setup:

RPF1s with RT-615s
17x9.0 +45 255/40/17
17x9.5 +38 275/40/17

My car will see primarily street duty.

aznpoopy

nice selection. i want a set of RPF1's eventually.

ptrhahn

iTrader: (9)

KevinDoe:

You're going to LOVE that combo for your use... nice choice.