Ride Height
04-11-2008, 11:18 PM
#61
Nordschleife Master
I am measuring from the bottom of the rear subframe notch where one end of the trailing arm (the part with the flat bar) connects to the rear subframe.
I am not surprised ride height is off, when i installed the shocks i just set the nuts to whatever looked good. Also the new wheels maybe slightly taller so that too may have effected ride height, but the most that would be is what, maybe 5mm
I will fool around with the height again when i get back from LA in 2 weeks. I will also once again delve into the inner workings of the PSD system and try and get that thing flushed and working correctly.
Jon,
Also this car is just a street driver (very rarely at that too) I like your suggestions for getting the ride height totally dialed in and may do that in the future. But for now i just want to be in the range of where it should be.
Cheers
05-25-2008, 11:25 PM
#62
Pro
Join Date: Jun 2001
Location: Columbus, Ohio
Posts: 621
Likes: 0
Received 0 Likes
on
0 Posts
>At the front it is near 2:1 ie move the perch 1mm the car moves 2mm.
>At the rear is around 4:3 ie move the perch 3m the car moves 4mm.
Hokay;
Will somebody check my math??? Sorry to bring this back up, but a rare science this appears to be!
Jon put forth the above formulae, so here goes;
My rear height is 149.7mm on the driver's side, and 147.9mm on the passenger side.
If 2 turns [ 3mm ] = 4mm at the road, then I should make 5 7/8ths turns on the driver's side, and 6 1/2 turns on the passenger side, to make it 'even' at 173mm, correct?
Or, am I missing a step, and it is _twice_ that number of turns? or something else?
My front heights are 142mm driver's, and 139.8mm on the passenger's sides. So far, I've moved the driver's side 7 turns, and the passenger's side 8 turns... How much farther to go, to get to the specified 180mm???
Thanks for _any_ simple explanation[s]!
Rear new Bilsteins are going on! Feathering tires were an indicator I needed to change shocks, the rear 'bounced' more than one and a half times, not so bad up front.
Anyone put Bilsteins up front, when they weren't there originally? I 'hear' it can't be done....
>At the rear is around 4:3 ie move the perch 3m the car moves 4mm.
Hokay;
Will somebody check my math??? Sorry to bring this back up, but a rare science this appears to be!
Jon put forth the above formulae, so here goes;
My rear height is 149.7mm on the driver's side, and 147.9mm on the passenger side.
If 2 turns [ 3mm ] = 4mm at the road, then I should make 5 7/8ths turns on the driver's side, and 6 1/2 turns on the passenger side, to make it 'even' at 173mm, correct?
Or, am I missing a step, and it is _twice_ that number of turns? or something else?
My front heights are 142mm driver's, and 139.8mm on the passenger's sides. So far, I've moved the driver's side 7 turns, and the passenger's side 8 turns... How much farther to go, to get to the specified 180mm???
Thanks for _any_ simple explanation[s]!
Rear new Bilsteins are going on! Feathering tires were an indicator I needed to change shocks, the rear 'bounced' more than one and a half times, not so bad up front.
Anyone put Bilsteins up front, when they weren't there originally? I 'hear' it can't be done....
