[cmitchell17]

Is there any advantage to adjusting camber for better launch traction? I think the factory settings are pretty aggressive and you can definitely tell but how much more the insides of the rear tires wear compared to the outsides. I would imagine this is for maximum grip in cornering?

[parish8]

A friend of mine put 325/50/15’s in the back and adjusted the camber to 0. Car drives fine but he isn’t hitting it hard enough yet to notice a difference in traction.

I think it is worth doing if you are not concerned with cornering.

[cmitchell17]

How much does bump steer affect the camber? So if you get a lot of weight transfer I would imagine the camber would be even worse, unless the rear suspension isn't effected?

[parish8]

We wondered that too but decided to just zero it out while at rest. I am anxious to see how the tires wear.

[cmitchell17]

It dosent seem like we have much options to improve launch and straight line traction. The car as it is seems like it does a really good job at keeping the tires planted without wheelhop. Its suprising you can break the tires loose and not even know it its so smooth and you can't even hear them spinning. That to me is telling me that the suspension is planted and very stable. What ive found works is that the biggest variable is the road surface, on recently paved roads that have just been sealed its fine, but on worn roads its impossible to get anything to hook.

[cmitchell17]

So apparently my rear camber is maxxed out. They said they couldn't bring in anymore positive camber which obviously they are doing something wrong if the factory setting is at -.9 degrees and it's maxxed out at -1:



I did get a half a degree on the left and .3 degrees on the right. So far I haven't noticed any benefit for straight line traction, but I want to keep going to at least around -.3 or -.4.

From looking at my stock Goodyear's and the wear on them it looks like I've got a lot more negative camber than what's showing. Both inside rear tires are showing chords, I did get 30k out of them since they are just at the wear bars on the opposite side of the tire.

[PRAY]

I know that on all the other IRS cars that rip at the track the camber is 0 in the squatted position. You have to get the biggest foot print on the ground possible. Talking to Steven at 42 Autosports it can get dicey on the big end when the suspension unloads. I am guessing you will need a fully adjustable rear to get everything out of it that you can. When I swap over to all of my suspension stuff I am going to take it to him to be set up.

[cmitchell17]

Do you have any idea how much negative camber comes from the suspension squatting?

[cmitchell17]

Originally Posted by PRAY

I know that on all the other IRS cars that rip at the track the camber is 0 in the squatted position. You have to get the biggest foot print on the ground possible. Talking to Steven at 42 Autosports it can get dicey on the big end when the suspension unloads. I am guessing you will need a fully adjustable rear to get everything out of it that you can. When I swap over to all of my suspension stuff I am going to take it to him to be set up.

So I would probably need adjustable control arms and trailing arms for proper zero camber? Maybe the adjusting bolts needs replacing since they are torque to yield, maybe that's why there's no more room to tighten them?

[PRAY]

Originally Posted by cmitchell17

So I would probably need adjustable control arms and trailing arms for proper zero camber? Maybe the adjusting bolts needs replacing since they are torque to yield, maybe that's why there's no more room to tighten them?

I am sorry brother, I don't have to answer to either of your questions. I know that my car squats about an inch to and inch and a half on the launch according to the pics. I haven't adjusted mine yet so I don't have a solid answer for you.

[Bluecyclone]

My GT is set @ 1.5 neg for the twisty's but I did a burnout grip test recently and you can see the inside of the tires are doing most of the work so 1.1-1.3 may help. I have "Lifetime alignment" with Firestone so I can track & experiment R&D for grip on launch. Just started testing.

[cmitchell17]

Originally Posted by Bluecyclone

My GT is set @ 1.5 neg for the twisty's but I did a burnout grip test recently and you can see the inside of the tires are doing most of the work so 1.1-1.3 may help. I have "Lifetime alignment" with Firestone so I can track & experiment R&D for grip on launch. Just started testing.

Never thought of doing a burnout test, that's a good idea. Getting a lifetime alignment is probably a good idea too, I just can't figure out why It can't be adjusted anymore.

Does anyone have a good diagram of the camber adjustment?