I checked the stock settings for my 07 Nismo,front chamber is -1.4 castor +8.1 toe.011 rear chamber is-1.8 toe .23.What do I need to change to run Hoosiers 285/30-18 front and 295/30-19 rear?Any suggestions

 

are the nismo's fully adjustable? impressive if so, expected by me on a Nismo, however.

 

No front camber adjustment,just a little more aggressive original setting because of the Nismo suspension's lower stiffer springs and shocks.I'm thinking of running 1/16" front toe in to keep things pointed straight and toe 0 rear toe with -1 rear camber in hopes of maintaining the car's balance,while increasing bite coming off corners with the wimpy stock LSD.

 

I would suggest some toe out in the front for initial turn in. I currently have 3/16 total out in the front.

 

The stock Nismo has good initial turn in,the only way I can induce oversteer is to lift the throttle.

 

How much front toe out can I run without my steering wandering at highway speeds?I'm considering +1/16" up front and 0 toe at the rear.

 

1/16th is good out in front. i like 1/16 in for the rear. rear is much less prone to oversteer.

 

I'm going for a four wheel alignment in the morning,I'm planning to go with 1/16" toe out up front and 1/16" toe in rear,try to stay with -1.4 degrees front camber and -1 degree rear camber and a 0 thrust angle.

 

how did this work out for you?

 

if youre planning on running massive R-compounds youre gonna want more like -2.5 degrees camber...toe is all a matter of preference in the handling dynamics. how much camber you need to fit those tires depends on the offset of the wheels.

 

You only need a lot of static negative camber if you have a lot of body roll.

The Nismo Z (and a properly-prepared non-Nismo Z) does not have a lot of body roll, hence you don't need a lot of static negative camber.

 

well it doesnt matter how stiff you have it, unless its a formula or prototype car, youre gonna have bodyroll especially with the cornering forces R-compound tires generate. ask anybody that races a Z how much negative camber they run. besides that in order to even fit 295's up front you have to run around -2 to -2.5 inches of camber or they'll rub (with an offset in the low 20's....manufacturer depends too.

http://www.edmunds.com/media/roadtes.../nismo.340.jpg

note the inside splitter is about 4 inches higher than the outside splitter and the tires are almost rolling over onto the sidewall.

 

I guess you didn't check the 2007 SCCA Solo National Championship results (or the 2006 results either)?

Like I said before, you only need a lot of static negative camber if you have a lot of body roll.

At 1.3G, I have 1.83 degrees of body roll -- on my B Stock track model (basically identical to Carter's). Anything over 2 degrees is just taking tire away from acceleration and braking.

 

what shocks are you using? if youre competing at national level..

 

With 8 to 9 degrees of postive caster and the SLA front suspension, the front of the 350Z does not need a lot of negative camber. Also, as tires get wider, you need less negative camber, so going from a 225 stock front to something like a 285 means you need at least .5 degrees less negative camber. Let the tire temps tell you what camber is needed.

 

4 inches of difference is about 3 deg of body roll....
I'm running on hypermax 3 sport and I'm happy with my 2.2 deg of negative camber in the front... 1.9 in the rear... will see with the next tire/wheels setup if I'll need more or less.

 

yeah. I'm picking up a pyrometer and camber tool to get it all right as I go.

 

Koni DA