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Re: Correct spring set up for TCV8

All that happens when you wind the collar up on spring is to preload it.
wind it up an inch (250lbs per inch)wheel to spring movement), the force needed to move the spring needs to be at least 251lbs.
If you really need to work it all out put goulds maths into exel. It works...........

Re: Re: Correct spring set up for TCV8

Yes indeed, I don't know what the linearity of any change of spring rate will be as the spring is compressed - until the coils bind of course!The spring rate is set when it is manufactured, I had assumed the rate would remain around 250lbs for all practical purposes throughout the range of operating lengths of the spring.

The point of winding the spring seat up is to adjust the ride height on the car to make it level fore-and-aft, having no adjustment at the rear on my car.
This compensates for the spring compression due to the weight of the car. When I used higher rate springs the seat needed less adjustment because the spring was compressed to a lesser extent. Sorry I didn't explain that this was about ride height, not rate.