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-   -   How much rake? Weight distribution question (http://www.the370z.com/track-autocross-drifting-dragstrip/105129-how-much-rake-weight-distribution-question.html)

synolimit 06-29-2015 08:20 PM

Quote:

Originally Posted by patabq (Post 3243090)
Leaving the rear higher shifts weight to the back. If you have oversteer, you want to stiffen the rear sway/soften front sway and/or lower the rear/raise the front.

The reservoir is large. We need a small one like with the AEM cold air system.

That's not correct which is why I removed my rear sway because I had to much oversteer. Something tells me all of this is backwards as it doesn't make sense to me.

Dwnshift 06-29-2015 10:10 PM

Every car is a little different.
Raising the rear of the car puts more weight on the nose... It also will make the car understeer through braking zone and understeer coming off the pedal.... To much nose weight
It will also make it loose from center out.
More rear bar will make your car snappy / loose and kill power down. The 370 with its shorter wheel base than the 350... Doesnt respond well to more rear bar.
It does respond well to front bar in a lot of good ways.
Put it this way... You wont be able to purchase an after market front bar that is too stiff. ;)
A standard Nismo rear bar may be too much rear bar some tracks.



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synolimit 06-29-2015 11:43 PM

Quote:

Originally Posted by Dwnshift (Post 3243192)
Every car is a little different.
Raising the rear of the car puts more weight on the nose... It also will make the car understeer through braking zone and understeer coming off the pedal.... To much nose weight
It will also make it loose from center out.
More rear bar will make your car snappy / loose and kill power down. The 370 with its shorter wheel base than the 350... Doesnt respond well to more rear bar.
It does respond well to front bar in a lot of good ways.
Put it this way... You wont be able to purchase an after market front bar that is too stiff. ;)
A standard Nismo rear bar may be too much rear bar some tracks.



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Hence you made your own bar. What's that bad boy cost??

dP3NGU1N 06-30-2015 01:22 AM

Quote:

Originally Posted by Dwnshift (Post 3243192)
Every car is a little different.
Raising the rear of the car puts more weight on the nose... It also will make the car understeer through braking zone and understeer coming off the pedal.... To much nose weight
It will also make it loose from center out.
More rear bar will make your car snappy / loose and kill power down. The 370 with its shorter wheel base than the 350... Doesnt respond well to more rear bar.
It does respond well to front bar in a lot of good ways.
Put it this way... You wont be able to purchase an after market front bar that is too stiff. ;)
A standard Nismo rear bar may be too much rear bar some tracks.



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May I challenge you on that for a moment? Hypothetically if two people are carrying an object at opposite ends, one lifting higher than the other. Wouldn't the one lifting higher be exerting more force and thus carrying more weight (up to a point)? For example, when corner balancing, raising a corner increases load on that corner and its counterpart and decreases weight on the other two corners.

Would that principle not apply to two wheels on the same side?

Thanks,

patabq 06-30-2015 08:47 AM

Quote:

Originally Posted by synolimit (Post 3243131)
That's not correct which is why I removed my rear sway because I had to much oversteer. Something tells me all of this is backwards as it doesn't make sense to me.

I apologize a thousand times. Of course, you are correct.
I edited it and it's now correct.
In stock classes they used let you change the front sway bar, but since most cars push it was of little use. I don't know the current rules.

Note that if you lower the spring preach 1/4", that does not mean the car is riding 1/4" lower in that corner since the weight is shifted to the other three corners.


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