racebum

bought a 2002 z06 a couple months ago and have been going over it fixing the little things. swapped out the oem valve springs, installed 2004 shocks, stoptech pads etc

plan on doing an alignment soon and was seriously like WTF when i read some of the posted charts

it doesn't even make sense. who in their right mind would toe in the front and slightly toe out the rear? that's a car that can't turn and comes around easy.

camber seems normal enough for a street setting at .7 front and rear but i'm curious if there would be any improvement going .75 neg front and .50 neg rear and or 1.00 neg front and .75 neg rear?

the toe thing just had me scratching my head. most cars you toe in the rear anywhere between .05 and .10 per side and set the front between zero and -.05 in front per side for a decent street tire

i'm either going to be using the PSS if i buy some interlagos or the ps2 or nt05 if i stay with stock wheels

hklvette

Interesting... I usually set my toe to .05 in on all corners mostly to prevent them from toeing-out if something should slip. Camber depends on how hard you're looking to drive the car. I auto-x mine frequently, and have -2 front, -1.6 rear.

Pfadt has a good link here: http://www.pfadtracing.com/blog/wp-c...-9.12.2011.pdf

CHJ In Virginia

I agree with the above poster. Check out Pfadt's site for suggested settings. Pick the type of driving you do most and then go with those recomended settings

froggy47

++ for the pfadt chart.

racebum

that's backwards from the chart you just posted. pfadt is showing toe out on all 4 corners for performance street. actually they are showing toe out for all of their settings.

oh wait, they are saying - is toe in. how confusing. every good laser alignment rack i have came across uses - for toe out. hell even gran turismo 5 is - for toe out.

so what happens with the car when you bring the front end near zero or toe out? typically it increases turn in. just curious what the reasoning is for using front toe in with these cars since most all of you seem to do it

mgarfias

I use a smidge of toe-in at the front on the street as zero or out will eat the inner shoulder of the tire. Zero eats it as when the car is in motion, things flex and your zero toe becomes toe out.

racebum

totally. but it greatly aids in turn in. it's been my experience that front toe in will make the car feel numb. you don't have that fast darty turn in. was just curious why some of you are setting up track cars with toe in up front? is it a stability thing at high speed?

using .01 or .02 toe in per side up front makes sense for maximum tire wear

hklvette

That's exactly why I do it. I put a lot of street miles on my C5, and I'm willing to compromise on the side of tire wear if it means I have to compensate for slower turn-in.

racebum

just talked to the guys at pfadt as this was making me scratch my head. the suspension on the c5/c6 is designed to toe out as you compress it in a corner. the whole purpose of slight toe in to zero toe is to compensate for the gain and prolong tire wear

makes sense now.

i think i'll try -.8 front camber, -.5 rear camber, .02 front toe in and .08 rear toe in per side

that's in between their street and street tires track alignments

just had to wrap my head around why guys were using front toe in

froggy47

I set 0.0 toe in front, toe in the back as see fit for the event/tires/etc.

Seems to work.

racebum

how's tire wear at zero front toe? if it's not too bad i would go this way? any inside edge scrubbing worth mentioning?

froggy47

I run 3 deg neg front so if my street driving exceeds autox/track I get inner edge wear, but it's not from 0.0 toe.

Generally street/track wear cancel each other. For ME.

YMMV

mgarfias

Yeah, I should add that at the track I take that smidge of toe in away.