Mixed use alignment? (Attn:Hotrodz, Rusty)

filip00 · 12-17-2023, 05:13 AM

Quote:

Originally Posted by Jhill

So been a while posting but I got a secondary vehicle so now making some changes with the Z and doing suspension arms and also some custom valved powertrix ultralites. I still plan do street drive the car so I’m trying to get some feedback on alignment thoughts. I know the go to for track is a -2 to -3 front with a -1.8 rear but I think that’s going to be a bit much front for any sustained street use. So then the question is if I plan to keep the front around -1.5 to 1.75 should I then put the rears closer to -1.25ish? I know factory has the rears more negative than front but then I see a lot of the Z (and GTR) change that ratio for aggressive use as you get more corner exit traction.

So keep rears 1.8 and just have less front or adjust the rear to keep a more negative front bias?

After trying out many different setups, I think if you go front between -1.5 and -2.0 and back somewhere close to -1.0 and -1.5 you are going to have a pretty neutral setup. The Z has much wider rear tyres, and quite a soft rear sway bar, resulting in a lot of understeer when stock. So I'd definitely suggest the front as mentioned above, and the rear somewhere between -1.0 if you have a stock rear sway bar. Or -1.5 to even -2.0 on the rear if you've got a very stiff rear sway bar.
For toe, I'd suggest 0 on the front, and just slightly closed toe for the rear. This proved to help return the steering wheel faster when going out the corner while keeping the rear neutral.

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