spacers

ZForce

The contol arm for the stock 370Z are non adjustable, therefore any lowering springs that drop from oem height will place more negative camber on the wheels. There is a little bit that can be adjusted with a stock suspension, other than that you are faced with adding upper control arms and a rear camber kit to add positve camber back in after installing lowering springs.

The rule of thumb is any drop below 0.75 will require a camber kit to bring it back into mfg specs. The Eibachs drop the front 0.9 and rear 0.8. That is borderline out of mfg specs and its a personal choice, some like the more negative camber and some want to save their tires and go for a camber kit.

Myself I went with a rear camber kit and will hold off on the fronts until I see how the tires wear and go from there.

As far as needing a camber kit with just adding spaciners and NO lowering springs. I honestly do not know if spacers alone will effect the mfg camber. I was advised by a reputable shop that installed my spacers on my last 350Z to get an alignment done after spacer install, which lead me to believe something changes in the suspension setup when adding spacers and it may not change the camber BUT may change one of the other adjustments, toe or caster. I never got an alignment done and sold the car soon after and got the 370Z.

EDIT....From Mike's comment above, it looks like spacers do not effect the camber and he was able to get a good alignment with spacers and Eibach springs....thanks Mike!

Hope this helps.

Curtis