I've recently installed coilovers on my 2003 g35 sedan. I wanted to see if anyone could provide me with the right alignment numbers that I could take to the shop.

Thanks!

 

Do you want OEM specs?

 

yes. But also I want to know if I drop the car slightly for the winter what might the specs be?

 

If you are on coilovers with stock camber arms and toe then you will have no camber adjustment upfront. You want your camber to be less than 2.0 all the way around. You want your toe to be at ZEROED OUT (0 degrees). You cross caster difference should be less than .4 degree. You will want your wheel position checked before and after to make sure it is centered. Here is mine currently and I have had my tech fine tune it and try to zero out the toe and keep cross caster very tight along with rear camber in spec (rear camber is adjustable).



Edit: I am lowered on G35 coupe and 350z springs along with sport shocks and staggered 245/45/18 in front and 255/45/18 in the rear.

 

^^^
I had mine aligned to 2004 350z specs. I'm on the same setup you are. Let me see if I can find my alignment sheet in my glove box.

 

What machine did they use? I have never seen a report that detailed before.

 

^^^^ I got it done at NTB right by my work. I had them price match a local shop that wanted $39.99 for an alignment. They gave me a 6 month warranty on the labor and price match to my local shop. The machine was a laser machine but not sure what brand. I will have to double check with the tech next time I go in for my wife's alignment. The tech had to tweak it 2-3 times since the first time he just tried to get the reading all in the green. That would still cause a pull and I wanted my TOE ZEROED OUT and my cross caster within spec. I told him I did not care about camber as long as it is below 2.0 degree and the tech did a wonderful job dialing it all in.

 

The data is displayed differently, but there really aren't any extra measurements on that report. Included Angle isn't measured, it is just SAI + camber.

Before setting front toe to zero, I recommend researching the difference between static and dynamic toe and the 350Z TSB to correct tire feathering (hint, Nissan recommends setting toe to max tow in spec).

 

Having a hard time deciding on toe specs since many recommend to keep it out of spec and once you start driving and with the load it will toe in to ZERO. I had it set to nissan specs and really did not enjoy the way the car was driving or pulling. I have it currently very close to zero and the car tracks straight as long as I have air pressure even. I plan to go back in next week and have him tweak it more if need be. I will look up the TSB and print it out and just glad that I paid $39.99 to be able to go in and have it fine tuned when ever I feel like it.

 

With ZERO toe (front and back?), doesn't the car "hunt" the road? You need a little toe to keep that "on center" feel.

 

The TSB is NTB04-043a. I've always kept the rear wheels about in the middle of the toe specs. The rears have always worn evenly and at a normal rate. The front wheels will actually toe out when the car is moving forward. By setting to max toe in, the toe should be approaching zero on the highway. That is still in spec, it is just at the limit. That being said, the TSB states that max toe-in is now the recommended setting.

 

I do have spc rear toe bolts installed.

 

To what years does that apply?

 

^^^^ I think the feathering was a huge concern on 2003-2004 350z and it was a mix of sloppy alignment and crappy stock tires with a defective tread pattern on the edge. They stiffen up the tread block on the edges and changed the spec on alignment (Bridgestone / Nissan). Many have changed to wider tires and kept a good eye on alignment every 6 months. Along with rotating tires side to side or swapping them if it is directional will prolong tire life. Alignment kits for camber and toe is beneficial if you are dropped more than 1"

http://www.myzroadster.com/Files/tsb.../NTB04-043.pdf