upgraded my 19" wheels to 20"... 10.5 wide rear 9.5 back... On my G37S

after going to Tire Kingdom, Infiniti, and 2 other places that couldnt do it because they didn't want to risk my car getting messed up trying to get on the ramp... i talked to their alignment people and they made me more confused than before on alignments...

And one place I called wouldnt even see my car unless i had camber kits.. weird...


Anyways... I was told TOE IN was a good thing.. he confused me on why. Someone care to explain?

Wouldnt having the toe in the front parallel be a good thing?

Also I was told the rears were best left with negative camber if i want good handling. Why is that?

Then I was told that front wheels cannot be adjusted for camber. The rear wheels are fully adjustable.

I'm a damn noob when it comes to alignment. Im getting one hopefully tomorrow or next day before I ship my car to Chile (I dont trust people working on my G there since Infiniti does not exist there)

A lot of places want to charge extra since the car is lowered =[





Bottom line:

CAN SOMEONE PLEASE, oh PLEASE explain to me about alignment, and what I should ask for? I am doing this without camber kits. Explain what caster is too if you feel like it.

Also hear bad toe in front can make your car slower cause it causes resistance?


Thank you all in advance

 

I don't know that much about alignments but unless you are racing stay away from toe-in. The idiots that did my alignment the first time put 2 deg. of toe-in on the rears, unknown to me. 4000 miles later I had bald Falken 452's. No burn outs or real aggressive driving. Almost crashed on the freeway in the rain because i didn't know they were bald.

 

I'm lazy, and have been through this a few times, so I will spare myself.... Here is a article that will explain everything you need to know:

Tire Tech Information - Alignment

My recommendation is to go with the toe as close to 0 (under 0.05 if possible). This will really cut down on tire wear. Unless you are crazy lowered, they should be able to get the toe in spec. There is little to no adjustment on camber front or rear without a camber kit, so there is not much you can do. Some amount of negative camber both front and rear is good, and really needed on a RWD car. It helps turn-in and cornering more than anything. From the factory there is some negative camber (around -1 degree), and really you can go up to -1.2 to -1.5 degrees, or more, with little tire wear if toe is close to 0.