Ideal Alignment setup?

[chuci]

So, I have the Eiback Pro Kit springs installed and the SPC adjustable rear camber links.

So far, rear alignment is at Factory spec (can't find the numbers right now, but verified to the OEM manual and readings from the tech) and the camber links are doing their job. I believe neg camber is around 3.5 degrees and I'm looking to get into the 1 to .5 degree range if it works.

I'm looking for a more upright rear tire position and wonder if anyone has numbers they've come up with after some testing/experimenting. Setup is with 235/40/18 tires on 18x8.5 +50mm offset TSW Trackstar 5s.

On the fronts, the neg camber is what it is. Has anyone else found a front setup adjustment kit/link set?

 

[bykeryder4life]

Im no susp guru, but -3.5 in the rear is wayy too much. Depending on the front camber and some other variables, Id run maybe -1 to -1.5 in the rear. How do you want your car to handle? What are you doing with it like tracking or spirited DD? You care about how long tires last or you want performance? do you want it to be balanced, understeer, or oversteer? These things affect how you align it. generally you want less camber in the rear than front... to adjust front camber you need a good set of coils. I have seen somewhere a set of front camber plates/tophats whatever but I dont know any1 running them. forgot the company name,

 

[drledford93]

Im no susp guru, but -3.5 in the rear is wayy too much. Depending on the front camber and some other variables, Id run maybe -1 to -1.5 in the rear. How do you want your car to handle? What are you doing with it like tracking or spirited DD? You care about how long tires last or you want performance? do you want it to be balanced, understeer, or oversteer? These things affect how you align it. generally you want less camber in the rear than front... to adjust front camber you need a good set of coils. I have seen somewhere a set of front camber plates/tophats whatever but I dont know any1 running them. forgot the company name,

I would run 1-2 neg in the front and probably close to 0 in the rear to minimize grip in the rear. By doing this, you effectively increase front grip. I'd look more into actual suspension set up rather than camber, especially in this car. The power output with a tire on it's edge is a recipe for tire wear...

In terms of toe, I would go 1/8 out at the front and 1/8 out at the rear. This will get the turn in increased and loosen the rear up. Just be ready to catch the rear, as it will come around with this set up (I have it on my car).

Daniel

 

[mr_mazda329]

I would run 1-2 neg in the front and probably close to 0 in the rear to minimize grip in the rear. By doing this, you effectively increase front grip. I'd look more into actual suspension set up rather than camber, especially in this car. The power output with a tire on it's edge is a recipe for tire wear...

In terms of toe, I would go 1/8 out at the front and 1/8 out at the rear. This will get the turn in increased and loosen the rear up. Just be ready to catch the rear, as it will come around with this set up (I have it on my car).

Daniel

Sounds like you are running a nice setup for AutoX. But for something with more high speeds and less oversteer, toe-in the rear would be good to keep the rear planted. Then all you have to worry about is the front having enough grip.

 

[drledford93]

Sounds like you are running a nice setup for AutoX. But for something with more high speeds and less oversteer, toe-in the rear would be good to keep the rear planted. Then all you have to worry about is the front having enough grip.

Yes, 1/8 might be a bit much on a road course. I would not go as far as toe in on this car. It's kind of a pig without adjustment to the rear, freeing it up a bit. Maybe 1/16 or 0, I'd say. (I do prefer a slightly oversteering car, though.)

Daniel

 

[mr_mazda329]

Yes, 1/8 might be a bit much on a road course. I would not go as far as toe in on this car. It's kind of a pig without adjustment to the rear, freeing it up a bit. Maybe 1/16 or 0, I'd say. (I do prefer a slightly oversteering car, though.)

Daniel

Yea. Slight oversteer is nice. Makes a car not feel like a pig and more nuetral. But on a FWD, that can into a disaster because you cant power out of it and save it as easily. But my miata is very nuetral and i love it.

 

[chuci]

The thing I love about this car - SO very well balanced for front/rear traction at the limits with the stock settings. I found that even after going with the lower ride-height and camber changes up front, I still get predictable and even slides when cornering hard.

The car is absolutely my DD and will see a track on occasion. I just want to be careful not to change camber only and not consider all the other settings.

 

[Nliiitend1]

I've found that I prefer to have 0 rear toe on this car. It allows the passive rear steer to do its thing.

 

[bykeryder4life]

+1....^^^^dude knows his s*** when it comes to susp.