DIV 1 rally/track suspension setup

[Dino86]

NoHachi Wrote:If those are truly your springrates then there's your problem.. Extremely oversteer biased. You'll need one hell of a front sway bar to balance them out. But it would be better to add one kg/mm to the fronts and the sway bar.

As you probably know, if you are at equal freqs front-rear then you have no grip left in mid corner and corner exit to accelerate. Since there is still aero, tire and slip angle drag the car will start to decelerate.. Try to aim for at least 60% front roll bias.

I also seriously doubt that 4/4 is 1.9Hz. 1.9Hz is Lotus Elise territory and works very well on any asfalt. 1.8Hz saw an MX5 to sub 8min laps on the nordschleiffe.

OK, I will check the spring rates again. Might be wrong calculation because it handles OK.
Are you in this topic talking about spring rates or wheel rates? Maybe I missed it

Frequency is around 1.9 I guess.
NoHachi, you wrote in your suspension topic:
* Toyota AE86 5.8/4.5 ~ 2.3hz front, 2.1hz rear (me and Ivan)
* Toyota AE86 3.5/3 ~ 1.8hz front, 1.7hz rear (best street setup?)

Means, 1.9Hz fits in with around 4kg??


Honestly Nordschleiffe is difficult to compare to other tracks. Setup is way softer than other tracks (I ran 24hrs race and setup was totally different to other race-tracks).

In rallying, especially on low grip, and tight corners, steer in is important for me. Mid corner and exit are often covered in sand and dirt (only if you pass the first leg with startnumber 1 ) So I want to have the car turned-in earlier. (like Scandinavian flick)
If not, at low speed, it will understeer in the corner. (most stupid rally accidents on you-tube are caused by this )

Anyway, I do not want to hijack this topic with my setup but I will definatly "steal" some of your advice here
:wink: