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Old 11-05-2017, 02:30 PM   #6 (permalink)
BGTV8
A True Z Fanatic
 
Join Date: Dec 2009
Location: 03350 Australia
Posts: 1,514
Drives: 09 Nissan 370Z M6
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Quote:
Originally Posted by ValidusVentus View Post
Thanks for the reply, you may be correct. But my thoughts are along the following line: in order to increase the actual weight over the inside tire the car has to actually push into the ground harder... and to generate a force its got to be pushing against something else. And the amount of weight transfer is only affected by the CG height, track width and weight of the car. All other factors just affect the roll angle attained. I'm thinking that just because the car raises on one side, that doesn't mean its pushing into the ground harder, the only factor changed by the weight transfer would be how hard it has to work to raise one side of the car or another. ...Or would that force possibly even be transmitted back to the outside tires via the roll bars and springs? My head is starting to hurt.

Admittedly though, only in the very tightest of on track corners would this effect possibly be significant I suppose. With its noticeable effect on the steering weight and self centering I was also considering if it would contribute to almost a pendulum like effect with larger quick corrections; which seems to be something I do feel a bit of. Tough to say.

jchammond I would say I've tracked the car quite a bit but I still like to ponder some of these more difficult to measure things (especially while I don't have access to my car or track time) and was just looking for other's thoughts about it. I agree about SPL, have several of their products on my Z
We are talking about "jacking". If you can use suspension setting to "jack" the inside of the car when turning, especially when you are starting the turn and wanting the car to rotate, the act of arranging suspension to "push" down on the road with steering input (eg: LHF with turn to the left), then there will be an equal and opposite reaction of the road surface pushing against the tyre which will improve grip available from that tyre until the roll moment starts the take over.

Take a peek at the smithees website (URL) below where he goes into it in some depth.

Race Car Suspension Set-Up
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