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Spring Plate initial set-up

FM Former Member
Does anybody know what would be the best starting point to set my spring plates onto the torsion bar? All I've got so far is the shortened chassis on blocks. I was hoping to that I could set each plate at a recommended degree off horizontal and spring them back onto the lip, in the hope that I might just get it right the first time. Well one can hope! I've read a number of the forums, but can't find the answer. I'm going to run standard speedster wheels and tyres, nothing too fancy with a 1600cc engine, with a Martin and Walker fibreglass body. Does anybody know the best angle to start with?
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FM Former Member
Does anybody know what would be the best starting point to set my spring plates onto the torsion bar? All I've got so far is the shortened chassis on blocks. I was hoping to that I could set each plate at a recommended degree off horizontal and spring them back onto the lip, in the hope that I might just get it right the first time. Well one can hope! I've read a number of the forums, but can't find the answer. I'm going to run standard speedster wheels and tyres, nothing too fancy with a 1600cc engine, with a Martin and Walker fibreglass body. Does anybody know the best angle to start with?
WOLFGANGWOLFGANG'89 CMC FWB, FL Supporting Member
I lowered the front and rear about 1" before I mounted the Speedster body. If the front does not have an adjustable beam or dropped spindles it will definately sit too high with lots of open space above the tire and upper fender lip. I'm currently using 165/78x15" tires - close to originals. (I do need to replace these 20 year old tires and will go with 185/65x15" - Which seem to be about 1/2" lower than OEMs). I think lowering 1" all around should get you in the ball park.
J justinh
Check out the chart in this thread:

http://www.shoptalkforums.com/viewtopic.php?f=28&t=110857&start=15

Lists how many inner and outer splines to move to get the drop you want. You'll have to work backwards to set the height from the springplate angle. And then tweak for any sag in the bars.

Stock angle is 20 to 22 degrees down from horizontal depending on year. The angles in the chart are then subtracted from that. So a 6cm drop (9 degrees) would be 11 degrees down from horizontal.
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