12 replies to this topic

[mafumoto]

Hi Does anybody know the motion ratios ,front and rear for the vx suspenion

[Nev]

Do you mean the change of camber curve/graph as the suspension goes up and down? Or the change in toe in/out?

 

Edited by Nev, 28 November 2017 - 09:46 AM.

[SteveA]

Assuming you mean damping ratios for standard Bilsteins, as far as I'm aware it's never been published or tested. A few of us had our Nitrons tested on a Shock dyno but that would be vastly different.

[siztenboots]

its the suspension leverage , Wheel Rate = Spring Rate x Motion Ratio ^2

[siztenboots]

the motion ratio for S2 Elise/Exige :

front: 1.428 S2 ,  1.499 (S1?)

rear: 1.392

 

 

other figures , S1 ; 

 

front 1 : 0.66694

rear: 1 : 0.754 

 

If you turn 10 mm on the front spring platform you change 15mm on the wheel (Ride high)

If you turn 10 mm on the rear spring platform you change 13.3mm on the wheel.

 

 

[mafumoto]

Spot on siztenboots Just the info I was after Many thanks

[mafumoto]

I take it vx is same as s2

[Exmantaa]

A VX has front S1 wishbones and and rear from the S2.

The ride height is different what influences the ratio a bit, but should be close enough.

[mafumoto]

Ta for that

[mafumoto]

Thanks for the info guys Accounting for the figures given S1 F 1.499:1 R 1.326:1 S2 F 1.428:1 R 1.392:1 You can now see the corelation between coil height and ride height Now the vx should have S1 F 1.499:1 giving 10mm coil to 15mm S2 R 1.392:1 giving 10mm coil to 14mm Siztenboots I take it they were S1 ride heights you gave if they weren't then it shows the vx has near enough the same rear as the s1

Edited by mafumoto, 28 November 2017 - 04:33 PM.

[2-20]

Alexb has measured them http://www.vx220.org...f/?fromsearch=1 1.3 rear 1.51 front

[Aerodynamic]

The MR is changing depending on ride height aswell. So no need to have 3 decimal. Br, Per

[mafumoto]

Thanks for the info and links