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Subject Given your profile's power level and suspension mods
     
Posted by Ghoztt (MD) on September 02, 2020 at 11:08 AM
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In Reply To Track vs stock alignment specs. posted by CameronSF on September 01, 2020 at 05:34 PM
     
Message and guessing you have some experience on a track?? I would run neutral front toe with some mild rear positive toe (toe-in), this will allow for decent/neutral initial turn in while not forcefully over-rotating the rear of the car and will stablize the car on corner exit. The Z32's have an early torque band, especially on stock turbos, you'll want to keep the correct end pointing forward on corner exit and avoid oversteer/drifting. If you add some toe out (negative-toe) on the front you can change direction and set an initial turn-in line easier, but you'll change the mid-to-late corner behavior and it will be less responsive after the initial turn-in, (weight will be on the outside tires which will be angled more towards the outside of the corner.) Increase a little only if you're getting poor initial turn-in responsiveness from the front end, increasing negative-toe too much will result in a "darty" behavior.

If you have the ability to adjust camber, run -1.5 ~ -2.0 on the front. More than that will upset the balance of the car when approaching a corner without substantial suspension mods, when off throttle, and might cause excess rear rotation. If you can adjust the rear you can run up to -1.5~ but I would run slightly less than or at most, match the front wheel camber. This will maintain a slight understeer to the rear end and larger rear tire contact patch for better traction on corner exit. Also, play around with your tire pressures too, it can change behavior pretty substantially if you need to make some on the fly adjustments between sessions. As always, chassis and handling balance is key.

In a nutshell, having more negative front camber will induce better early/mid/late corner flexibility/rotation and responsiveness, but can add more mid-corner oversteer - you can tune that out and balance the rear with some extra toe-in on the rear. The neutral front toe will help to not over-rotate the car on corner entry and late trail braking. Too much toe creates scrubbing on the tires and will slow you down on the straights. More experienced drivers that push their car harder and late brake into the corners usually require more camber to help rotate the car. Lesser experienced drivers should run near to stock specs to maintain higher levels of understeer and more predictable handling. No need to mess with the caster, stock specs are fine. Hope this helps.

1993 Nissan 300ZX Slicktop (Oxford Gray Metallic)
1992 Nissan Skyline GT-R (Gunmetal Gray)
- Long Live the Z and Godzirra! -
"Love cars. Love people. Love life." - Mr. K.

     
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