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Originally Posted by Lynn E. Hanover' post='852577' date='Jan 10 2007, 07:58 AM
TRUE - cutting the spring makes it stiffer. It does indeed. Did you know that there is no such thing as a coil spring? Yep, its true. All a coil spring amounts to is, a small package into wich we can fit the correct rate torsion bar. Lynn E. Hanover wow head trip! cool! |
If you look at the formula for calculating a spring's rate, you see that all you need to know is the number of coils, the diameter of the coils, and the thickness of the wire. This can be condensed down to length of wire by thickness of wire, same as how you measure a torsion bar's rate.
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Originally Posted by heretic' post='852720' date='Jan 10 2007, 09:31 PM
If you look at the formula for calculating a spring's rate, you see that all you need to know is the number of coils, the diameter of the coils, and the thickness of the wire. This can be condensed down to length of wire by thickness of wire, same as how you measure a torsion bar's rate. True enough. When you buy a new dry sump pump, there will be a number of extra relief plunger springs with differing wire diameters but the same free length. The pump has a hex socket screw and lock nut on the pressure element so you may change springs and have a whole range of pressures, with less than 1/2" of set screw travel. Another advantage of an external pump over the stock pump is that all excess oil that is dumped by the regulator to maintain a specific oil pressure, is returned to the suction side of the pressure element, (just an inch or less) as opposed to spraying it back into the sump and adding to the foaming problem. Lynn E. Hanover |
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