I got a SMOKIN' deal on a set of Kuhmo Victoracers mounted on trans am twisty rims that have only been run 5 times. I'm super excited to run on these to say the least.

First off, what tire pressures would be a good starting point? I've been running 40 in the front, 36 in the back on my GSC's. The car is stock including 30mm front bar and alighnment.

Secondly, are the tires reversable? The guy I bought them from said they were, but on the inside sidewall they say "this side inward."

Finally, what would be a good alignment setting for my car? Maybe I can get a little better turn in with more neg camber?

Thanks guys!

 

Yes you can reverse them. You pretty much have to get good life out of them.

At the road course I generally started with about 32lbs rear and 34lbs front at COLD pressures.

They would usually grow about 6lbs hot.

 

I assume that this is a request for autocross information. I exclusively run used Victoracers. I am too cheap to buy new ones.

Tires:
For my first run (cold), I usually have 34 front, 30 rear and adjust downwards as the runs progress. The reason that I do this is that my first run is a throwaway and it's easier and faster to lower pressures than it is to add pressure between runs.

While the tires claim to be directional on the sidewalls, this "directionality" is simply to facilitate the channeling of water when running in the rain. I "flip" all of my Victoraers since the majority of the wear is on the outer edge. Unless you plan on alot of rain driving on the street, don't worry about it.

If you want to get the maximum grip out of these tires, buy some Formula V Traction Treatment.

http://www.racerpartswholesale.com/tractreat.htm

It is legal in Solo II and helps put life back into older tires. If you are going to street/track these tires, don't bother.

Alignment:
Get the maximum negative camber/combination of maximum positive caster you can get. Once you're hit a limit on maximum caster, you will begin to reduce the camber. This how it played out on my car.

 

On the Victoracer (at least my 275/40-17's) the can run either direction (I got that directly from Kumho tech when I discovered I had 3 rights and 1 left) but they do have an inside/outside. The tread block is more solid on the outside.

The Ecsta V700 is rotationally directional, btw I agree with Keith that it is only a consideration in the wet (I've heard claims, but not seen evidence, that they actually grip better backwards in the dry), but has no inside/outside.

As I have a shorter sidewall my experience may be different, but I find the Victoracer to handle better at lower pressures than other (mostly street) tires I have autocrossed on.

 

Thanks guys. I figured I would be able to run less pressure than my street tires but I wasn't sure.

Much appreciated