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Tech Talk Technical Discussion About The Nissan 240SX and Nissan Z Cars


 
 
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Old 08-03-2009, 10:52 PM   #21
Def
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Quote:
Originally Posted by PoorMans180SX View Post
240SX's suffer from on-throttle oversteer because they don't have enough squat. The best solution for this is to adjust the angle of the lower control arm to gain more squat and thus traction. This is why Koguchi runs a 5kg/mm spring plus a 1.5 kg/mm helper spring in the rear, so under throttle the car compresses the 1.5 spring and transfers more weight to the rear.

The ideal suspension setup is one that allows you to do four-wheel drifts, where all tires lose traction at the same time. With our cars near perfect weight distribution and non-staggered tire sizes, the front and rear roll couple need to be the same for it to handle neutrally.

My 240SX with 10/8 springs and stock anti-roll bars (with urethane busings) UNDERSTEERED in solid state turning.

Why are you looking for a bigger rear anti-roll bar then?
You don't know much about suspension tuning, so please stop quoting Japanese drifter spring rates and what not.

If you must know, I have an S14 rear subframe(less anti-squat), spherical bearings and rod ends on all links/pivots, and 1 kg/mm tender springs as well(which don't do jack when you're driving the car). They're not helper springs btw...

My car has very pronounced oversteer due to a lack of rear roll stiffness with no rear sway, hence I'm looking for a swaybar that'll actually do something vs. the heavy/tiny solid stock S13 15 mm rear sway.
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