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80 series spring hights in car. and stock diff angle?

Posted: Wed Mar 24, 2010 11:51 am
by hurricane
just after some info on the hight of 80 series coil springs when in the car.

im after stock spring hight, i can just add on to that for lifted springs. but mesurments for lifted spring also will help out.

im after this so i can work out what springs and where to mount the 80 series coil towers in my 60 series.

both front and rear mesurments im after

also after the diff angle of stock or 2 inch lifted for the front, can be measured from spring perch, stock mounts, etc any were then ill measure that at the sam point on mine, to see if the castor angle will be way out or not?

dan.

Posted: Wed Mar 24, 2010 5:23 pm
by 80's_delirious
my stock height 105series has front springs that are 300mm long (with the weight of the car on them, measured in the car)

my 80series which I thought had 4" springs in it has springs that are 430mm long (again with the weight of the car on them, measrured in the car)

Caster angle should be 3degrees positive plus or minus 1degree
I set caster on my 80series at 4degrees to help compensate for big tyres.

I would suggest you set the caster angle by gettting the diff sitting in place at the right height etc then use an angle finder tool and sit it on top of the steering knuckle king pin cap mounting surface to set caster.

Posted: Wed Mar 24, 2010 5:36 pm
by hurricane
mmm so would the 105 series have the same springs? i guss ill just tack the mount n and go from there,

the springs in a bare chassis sat at 390mm in the front.

they must colapse a long way with weight then?

thanks for the info

Posted: Wed Mar 24, 2010 6:10 pm
by 80's_delirious
I believe springs where the same from 80 to 105series but not 100% sure

Posted: Wed Mar 24, 2010 11:30 pm
by hurricane
ok,well ill find out were there sit tonight, when i weld the towers in