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Old 01-11-2009, 03:11 PM
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1/4 Eliptical springs

I will be using 1/4 E's on the front and rear of my roadster project.
The question is if I cut a spring in 1/2 does that make the spring 2 times stronger? 1000# to 2000#?
Also I will have 2- 1/4 E's on all corners.

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Old 01-11-2009, 03:23 PM
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14 eliptics

Lookon mhra murfreesboro tn. for a fick of my a bone with this setup .Its a smooth ride,The 1/4 setup has allways raised eyebrows but I like it.
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Old 01-11-2009, 03:57 PM
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moontanker

Do you have a web address to go to?
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Old 01-11-2009, 04:26 PM
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Quote:
Originally Posted by ouh506
I will be using 1/4 E's on the front and rear of my roadster project.
The question is if I cut a spring in 1/2 does that make the spring 2 times stronger? 1000# to 2000#?
Also I will have 2- 1/4 E's on all corners.
I conclude you mean cutting a normal semi-eliptic down to be used as ONE 1/4 eliptic.
No, it holds up less weight.

Remember you have to cut outside of the spring mount, so you can only make one semi into one quarter.
Obviously the shorter end will hold more weight than the long end.

Posey's has quarter eliptical springs. His site will give you some ideas.
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Old 01-11-2009, 05:35 PM
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Quote:
Originally Posted by ScoTFrenzel
...Remember you have to cut outside of the spring mount, so you can only make one semi into one quarter...
As ScoTFenzel points out, semi elliptical springs are not "equal" on both ends so you can't just cut them in half and have two equal springs. As he points out, the spring mount hole (or holes) are not drilled midway on the leaf. Also, most leaf springs are not crowned uniformly along the whole leaf. The front half will be crowned differently than the back half.

That being said, you CAN still use both ends of the semi elliptical if you are going to have quarters on both the front and the back of your car. Do this by starting with two matching semi elliptical leafs and cut each just to the left (or the right as long as it is on the same side for both leafs) of the the center hole. You will now have two "long" halves and two "short" halves. And you have now created a matching set of quarter ellipticals, one for the front of your rod and one for the rear. Then just continue to do the same with the remaining semi eliptical sprins and you will end up with complete sets of quarter ellipticals, a matching set for the front and a matching set for the rear...they just won't match each other front and rear.

I cut a set of F-150 semi-ellipticals in this way to make two matching sets of quarter ellipticals for the front and back of my sedan/delivery project. Full pictures and description are in my journal starting here. And a couple of pictures.

One complete set of quarter ellipticals after being cut from semi ellipticals:



The front set of quarters mounted to the perch (as seen from bottom):



Front set of quarters mounted to the frame:



The rear set of quarters mounted:



And a shot of how the quarter ellipticals look with the chassis finished.

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Old 01-12-2009, 04:43 PM
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pretty snaz
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