As you guys know, I recently dropped my '05 Sedan on 350z H-Techs (pix below). I'm now working on getting just the right setup with my adjustable D-Specs and Sways, while also experimenting with the alignment.

Initially, since the front dropped .5" more than the rear, there was more negative camber up front, and the rear was coming loose very easily. But since I have no front camber adjustment I had them add enough negative camber in back (-2.12) to give it some teeth during cornering. While this adjustment accomplished that goal, I now notice that the ride quality has notably deteriorated. It's not horrible, but feels much rougher than before adjusting rear camber.

I know there are always tradeoffs, but could I expect better ride quality if I get a front camber kit and add back some positive camber to both the front and the rear? Is it possible to have the best of both worlds? Ultimately, I'll trade a little ride quality for great handling if I have to, but would love to have a smooth-but-firm riding, awesome handling G.

What's the formula?

-T

PS FYI, to complete the picture the D-Specs are set at 3.5/4 (f/r) from full hard. The sways are soft/medium (f/r).

 

car looks good. you're okay at -2.2 camber on the rear.

what's your current tire pressure? check that it's not over inflated. that alone will soften the ride dramatically.

next, soften your D-Specs to 4/4.5.

finally, the D-specs needs time to break in. on my car it was rough at first too...look maybe 500miles or so for it to feel real good. my car is very comfy
even at 35 profile S03's.

 

Cool. So it's not the camber affecting the ride? FYI, my tires are at 35psi on all four - I upped them from 32 right before the suspension install, so maybe I'm still getting used to their firmness as well.

Also, for what it's worth, my tires seem to sound louder after the negative camber adjustment. Could that be related to the camber or is it something else? Maybe the additional tire pressure as well? (Or perhaps I'm losing my mind? )

 

If your car's factory pressure is 32, i would not go any more than +2 psi
for street. try 33psi first.

It is not unusual for the tires to make more noise after camber changes
as you're now riding on a different area than where you were originally. it's
similar to when customers complain about howling noises after a tire rotation..
for instance the front tires might have more neg camber wear than rear
and the rotation is forcing the tires to wear differently...usually results in
noise.

 

Your ride's lookin' great, man!

 

You think this setting might work for coupes also?

 

chaos-yeh, it'll work, but will be on the softer side. try 4/4 (Front/Rear) and
see where it takes you. I use 3/4 but i have different spring rates and
possibly different swaybar settings than you.

 

FYI, I softened tire pressure from 35psi to 33psi all the way around and it did make nice difference in ride comfort. I've left the D-Specs at 3.5/4 (f/r) for the time being. Want to test a bit more before messing with settings. -T

 

Probably going to order the D-specs very soon and change the sways to soft/medium, see how that works.

 

Yeah, there have been a lot of positive results around here with that setup. Best of luck!

-T

 

thanx