Help with Santhuff coil springs
I have a 68 mustang with stock arms weights 3100lbs w/driver and 1700lbs on the front . I bought a set of the Santhuff 150lb springs off a guy who never used them.
First off i put them in and they are so bowed i can't even get the shocks on, and the car sit way high. So i cut them put them back in and the shocks fit and the ride height is right. Car normally pulls front tires about 6-8" and carries them out @20 feet. Go to the track and the tires are lucky if they get a inch of daylight. On top of the front end of the car stays up all the way down the track. It is like the car isn't heavy enough to push the springs back down. At the top end where the front end is normally @2 inches higher than at rest it was @8 made car feel very unstable. |
Re: Help with Santhuff coil springs
Call Eaton Spring in Detroit they have all the orginal specs for both Coil and Leaf springs, they can and will make any of the FORD springs, get either a set of Six cylinder or small block 302 spring.. The rate you are quoting doesn't seem right as I remember. But it has been only 35 years since I fooled with it.
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Re: Help with Santhuff coil springs
68 Mustang 6 cyl, Moog 8174, 242 lb/inch for 1690 lb load at spring loaded length of 9"; 8306, 269 lb/inch, for 1519 lb load at 10.5" loaded length.
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Re: Help with Santhuff coil springs
Your spring rate was to high to start with then you cut them and increased the rate even more!
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Re: Help with Santhuff coil springs
As Jeff posted! Here is an extreme example, rear springs on a GM A body. 159 lb/in coils were compressed 4" by the weight of the car when cut from the original 15" to 13.2". When cut further to 11" they compressed only 3".
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Re: Help with Santhuff coil springs
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Re: Help with Santhuff coil springs
I find it hard to believe that a 150lb spring was to heavy. I cut the flat part where the pig tail starts so 1 coil but, what 2/3 to 3/4 of that coil is dead any how.
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Re: Help with Santhuff coil springs
Then how do you know they were really a 150# spring?
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Re: Help with Santhuff coil springs
I guess I don't. I know that the guy i bought them from said they were 150lb's he had bought from Santhuff, they were in a Santhuff box, and they look like the ones i have seen on their website. That is about all i know. They were 18" tall when i bought them and the wire diameter is .570.
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Re: Help with Santhuff coil springs
The Santhuff's I've seen should have the rate printed on the sping some place. They are powdercoated blue too.
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