GSteg

iTrader: (15)

The dealers will install F-sport suspension and performance parts, but try getting an alignment from them. The dealer will still resort to whatever the Hunter machine tells them whether you're on stock or F-sport springs

Ice350

iTrader: (1)

I thought the 2IS was just like the 3GS in that it does not come with camber adjustment from the factory. The camber is set for stock height and can't be adjusted when lowered. All of us 3GS owners are dealing with this issue but we don't complain. If you lower your car there will be negative camber that will prematurely wear out the inner side of the front tires.
About 20K miles is what you can expect with a lowered 3GS and I thought 2IS. That's why so many guys buy cheap tires.
The rears last longer but expect to buy fronts more often...if you want that look we love so much.

ldc

Do you have pics of your cars showing the wheel slanting?

RocketGuy3

iTrader: (1)

I don't think 1.5 degrees is enough to show up in a picture. But the wear issues are pretty apparent.

If I continue to face this problem, I think I would try to get more life out of my tires by swapping (re-mounting) them left-to-right every 10K miles or so. I think that could get me a whole lot more life out of my tires. Have you tried that?

Ice350

iTrader: (1)

Naw....I do about 8K miles a year. If I get 20K out of the tires that's over 2 years. That's good enough for me.

RocketGuy3

iTrader: (1)

Just to be sure, I'm guessing the same advice about adding toe in applies to the rear wheels, too, if I am seeing the same problem back there?

(For the record, my specs in the rear are -2.1 camber left, -1.8 right, and .24 total toe, and I am seeing some noticeable wear on the inside of my front tires after about 10K.)

lobuxracer

iTrader: (2)

Front inside edge wear is toe out. Rear inside edge wear is toe in. Toe out in front helps the car turn in better. Toe in at the rear reduces understeer and helps the car turn. So, if the rear is wearing on the inside edges, you need less toe in which is the exact opposite of what you do for the front.

RocketGuy3

iTrader: (1)

Err... I meant to say I'm seeing wear on the inside of my *rear* tires after about 10K, but hopefully context clues made that clear.

Anyways, thanks. I should have learned some of this from Forza by now.

Is the convention for the rear wheels the same as the front wheels in that a positive toe angle represents toe in?

lobuxracer

iTrader: (2)

AFAIK. I never use angular measurements, I always use linear. It's a lot less complicated. The angular measurements on the machines typically fail to account for the actual tire diameter, so you can be dead on the numbers and still have problems if you're on non-standard tires. Just another reason to have someone who actually understands suspension geometry setting up your chassis instead of someone depending on the lights going green.

sinister2c

So whats your recommendation for the 2IS?

Is there a setting on the Hunter machines that we should tell the alignment guy to put it on to read in distance and not angle?

I might have them adjust to the edge of the green for toe in on the front and the edge of toe out on the rear to see if that helps the inner tire wear.

I am also going to do the front SPC camber kit before the alignment too.