Fab_vr6

What have you used and worked? I have HKS RS coilovers, cusco sways and LSD, F/R 275/40/17 Toyo RA1, Cusco front control arm SPC rear

But I don't know where to start for the track alignment setting.

Ideally I like a setting that is 'ok' for everyday driving and for tracking.

I will be going to Portland International Raceway.

betamotorsports

iTrader: (1)

Just off the top of my head - dual purpose alignment:

FRONT

Camber -1.75
Caster +9
SAI 6
Toe 1/16" out
Ride Height - Don't know yet.

REAR

Camber -1.5
Toe 1/16" in
Ride Height - Don't know yet.

John

iTrader: (17)

John, how are those toe settings going to affect tire wear? (Note, I don't have the OEM specifications handy...)

betamotorsports

iTrader: (1)

Except for the camber settings, the above alignment numbers are what I'm running on my daily driver/autox 350Z. No unusual tire wear in 3,600 miles. I might see a tire mileage reduction of 10% as a result of the front toe setting but that's not significant in my mind. I'm even thinking about increasing front toe out to 3/32".

daveh

iTrader: (9)

I run even more toe than Betamotorsports suggests and I got about 30k out of my stock fronts and 20k out of my stock rears; mostly commuting. Never had any feathering or unusually uneven wear. I adjust my evo control arms for street and track as well.

FAB_VR6 I am assuming that the cusco arms are adjustable somewhat easily before track events just like my evos, so I would recommend marking them off for -1 degree for the street and -2.7 for the track. Set your toe settings up front while you are set at your track camber setting (approx -2.7). When you adjust your control arms back to street, your toe will change inwards ever so slightly (which is a good thing for the street).

Of course, the standard alignment rules apply to the Z.
Increase front tow-out for quicker turn in
Increase rear toe-in for more stablility

edit: I've also learned to run less neg camber up front in the rain. I wore away a good section of my inside rubber running too much camber in the rain. And still got spanked by the AWD's.

dnguyent

iTrader: (5)

Dave, now I know why your mileage stinks...hehe...you got too much toe for commuting! My car is aligned for steering numbness, slow turn-in, poor high-speed stability, and agitated chassis under braking, and that's why my mileage rocks. Although, that doesn't explain your phenominal tire life. I'm going to guess that you're just delusional

As far as toe settings, I run 1/16" toe out front and 1/8" toe in rear. My tires don't last as long as Dave's but I usually get 20k + ~5 track days.

daveh

iTrader: (9)

I would say that you are running some aggressive toe settings there.
Also, ~5 track days is probably the equivilant of 5000 street miles so you also get similar street mileage as I do (with strikingly similar alignment settings).

John

iTrader: (17)

That or he's just slow...

daveh

iTrader: (9)

Yup, car is only used on weekends for my mom to go to the grocery store

John

iTrader: (17)

I remember there was a TZC guy who sold his demodded track car as "adult-driven, only on weekends..." I digress...

dnguyent

iTrader: (5)

Does the grocery store also have an abandoned parking lot in front of it? Dave has a knack for knowing where all the abandoned parking lots are. In fact, he holds other lap records other than the one at Infineon. It just so happens that those "tracks" aren't sanctioned by any governing bodies, like SCCA, NASA...or the police.

daveh

iTrader: (9)

I do have to confess that I hold the record in climbing a certain Hawaiian volcano in a Toyota Echo, although I can't speak to it's alignment settings and tire wear

Nihilation

iTrader: (9)

I'm currently running -1 degree all around with 1/16" toe out in front and 1/16" in in the rear. As soon as I come across some good/cheap adjustable front arms I'm going to run -2.5 up front and try -2 in the rear. Unsure about my caster.

Fab_vr6

Dave, what about your rear settings?

Fab_vr6

How about 0' toe front and back? would that be a nono? anybody used that?

FritzMan

For Solo2 and street I run zero toe front and rear.

I tried a little toe out in the front and really didn't care for the change.

My camber with the Cuscu arms up front is -2.9 and rear is OEM max camber at -2.

After events I swing the front back up to -1 for the street.

daveh

iTrader: (9)

I just got re-aligned without my rear camber arms and am maxed out at -2.2 camber with .16 toe in.

0 toe is not a big no no. It might be a good street track compromise. Give it a try and if you feel like you want more turn in or stablilty, add some toe..

edit: 17" wheels

Fab_vr6

Fritzman, I am brining the Cusco arms to the shop to install next week w/ alignment, what should I ask him to do if I want to have 2 pre-set camber setting?

After the alignment is done (assuming I asked him to set the track setting), what is the instruction on how to adjust it back to street setting? what tools do I need and is it something I can do in my garage with accuracy or do I need the shop to do it for me with the alignment machine?

Thanks

Gary

betamotorsports

iTrader: (1)

Zero rear toe is certainly an option for autocross work. For the street and for higher speeds on a race track zero rear toe will make the car a little less stable in back. At the limit it will also make applying power a more delicate task. Generally racers add rear toe-in to allow better power applicaiton at the limit and to give a little more stability under braking.

MoodDude

Hey guys - can you let us know what size wheel you run since to get the same toe in/out for a different wheel you need to account for the wheel size.

Tb = Ta X Db/Da
or (toe for wheel b = toe for wheel a x diameter of wheel b/diameter of wheel a)