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Author Topic:   springs
4s racing
Member
posted August 18, 2001 07:03 AM
I pulled the front springs off my car to change them. the springs that came off are 17.5" inches tall.I want to lower the front end and use a lf. frt. out of a 3/4 ton truck how much can i cut off and still have the stiffness i need or what spring should i go to.To accomplish what i need?


mod91
Member
posted August 18, 2001 09:36 PM
What i have been told is if you cut a spring down you will stiffen the spring rate. Does anyone agree?


redneck bubbas racing
Member
posted August 18, 2001 10:39 PM
If you cut the spring the rate will increase. Can you tell me why you want to put the spring in the lf? Unless you run oppisite direction then shouldn't it go in the pass. side? I have done this and it beats stock springs but still not as good as racing springs. Good luck


shorty68
Member
posted August 19, 2001 12:01 AM
The rate of the spring will increase according to how many coils you cut off. What spring are you using. My book shows 3/4 ton spring with a rate of anywhere from 800 to 1090 pound per inch. The number of coils on the spring should be divided into the ppi rating. Each coil then contributes that percent to the total rate. 800ppi/ 7.5coils = 10.66 approx. 11%. 11% of 800 is 88. If one coil were removed the rate of the spring would then be 888 pounds. Don't know exactly how this works but it does. Just remember to do each coil individually. You cannot count two coils as 22%. It just does not work.


4s racing
Member
posted August 19, 2001 08:11 AM
Red Neck' It was my bad on the left front What i ment to say is i wanted to keep the same spring on the left front and stiffen the right front.But if i take 1 coil out of the right front to stiffen it up.What does this do to the height of the car.wouldn't it be sitting higher on the left than the right.What i am trying to do is lower the whole front end and stiffen the rt.frnt.Any help will be app.


4s racing
Member
posted August 19, 2001 08:17 AM
Shorty68'Thanks for the info.I wrote it down and put it into my folder for futher use.


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