I know there is a lot of discussions on this, but I am looking to make one reference thread.

Please post what specs you have your S2K aligned to, what sort of racing/events you do, and what tires & wheels you run.

Those who have fully stock alignments and tires need not reply.

Thnx
-K

 

Front Camber: -1.0
Rear Camber: -2.0
Front Toe unchanged
Less Rear Toe in. I can't remember the number.

S03s on SSR Integrals 16"
Toyo RA1s on Stock wheels

I will probably try a new alignment shortly. I only do track days.

 

gil, assuming those are your camber numbers, you made no changes to toe or caster?

 

no changes to caster. I'm going to try more camber in the front and less in the rear.

 

I use my car as a daily driver and wanted to balance tire wear with preformance. The following alignment specs have worked well on the track, but be aware that they do result in some additional wear to the inner shoulder of the tire.

Here are my alignment specs:
Front Left Camber -0.8 deg.
Front Right Camber -0.8 deg.
Front Left Caster +5.7 deg.
Front Right Caster +6.4 deg.
Front Left Toe 0.00 deg.
Front Right Toe +0.02 deg.
Total front toe +0.02 deg

Rear Left Camber -2.0 deg.
Rear Right Camber -2.0 deg.
Rear Left Toe +0.17 deg.
Rear Right Toe +0.20 deg
Total Rear Toe +0.36 deg.

And here's a link to a good alignment thread started by pfd: https://www.s2ki.com/forums/showthread.php?...light=alignment

 

A stock car with factory tires, wheels and alignment has too much understeer and front tire wear for enjoyable, aggressive driving on the open track in my opinion. These settings give me much better balance and wear.

front camber -2.0d
front caster +5.5d
front toe out 0.12" total
front hot pressure 36-37psi

rear camber -1.5d
rear toe 0.0" total
rear hot pressure 36-37psi

Increasing front negative camber improves balance and wear. I reduced front caster to get this much negative camber. Front toe out provide a crisper steering feel. Rear factory camber setting is OK. Removing all rear toe in reduces stability and improves balance. Hot tire pressures in this range seem to provide good traction and consistent performance.

 

Mike, when you say balance and stability, what do you mean? Can you elaborate?

 

Frt Camber = 0.5 deg
Frt Caster = 6.4 deg
Frt Total Toe = 0.0"
Rear Camber = 1.5 deg
Rear Total Toe = 0.28"

225/285 SO-3's on 18x8 & 18x10.5's
Frt lowered 7/8"
Rear lowered 1 1/4"
99.99% Daily driver (0.01% track days and the occasional Novice autox)

 

Hey Gilbert,

Good question I don't know if I can explain it very well.

I think less stability improves the car's responsiveness to driver input. The car feels more sporty, it reacts faster to driver input. Under heavy braking for example a less stable car may wander slightly and so you may have to use a little bit of steering input to keep straight. Similarly in cornering. This constant feedback gives you confidence to explore the limits.

Balance amongst other things has to do with the overall ratio between front and rear traction. You want both front and rear tires to be making noise, not just the front or rear by itself. A neutral car is again more fun to drive, more sensitive to steering and throttle input.

 

Thanks Mike. I see what you are saying. With my camber settings, I noticed that my rear end feels a little more unsettled when the road surface is bumpy. I've adjusted for that in my driving style but I'm going to play around with the alignment to see if I can reduce it.