G37 Track Set Up. Oversteer Help.

OptionZero

Think of a blacksmith forging a sword. For a blade to work is must be sharp, so the blacksmith has to grind the edge to a fine point. Grind it too much, the blade becomes too thin, it breaks, and you aren’t cutting anything with it

There is enough flex in our chassis in stock form that our front suspension isn’t able to properly work to keep the front tires planted in corners. Stiffer front bar is needed to reach a certain threshold where all the arms and spring/camper can actually do their job and keep your tires connected to the road.

That’s the best way I can explain it. Don’t think of it simply as “stiffer end - less grip” like we’re in Gran Turismo. In the real world, cars are flawed and we’re doing our best to achieve the dynamics needed to do better. Our front suspension is an area where Nissan’s design was lacking, or at least compromised to favor every day driver safety instead of track performance.

This story is the same for your spring rates. Too soft overall means weight is being transferred wildly when you attempt any dynamic movements. Your entry speed and turn on doesn’t appear that sudden, but the heavy sedan, with a heavy rear end bias, is sending so much momentum in the form of weight transfer that you’re still spinning out even with relatively soft driver input.

That is why everyone says you need stiffer suspension, and better alignment. You want the stiffer suspension to fight the weight transfer and make the tires do the work, which in turn demands a better suspension so your tires have more grip to eat the forces you’re putting on it

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