A 150 will hold the car up at ride height and should be compressed some. So will a 130, but I expect that would really need to be wound up. The difference is the lighter spring will be compressed more. That will store more energy to make the suspension more "lively", easier to separate and apply the tire. This can be useful on a mild combination that needs help. More power, more gear - it doesn't need the help. It can get to be too much and beat up the tire.

We have 170s on a car real close to your deal weight wise, but it's violent combo with quite a bit more power and we're also using a real good shock to control it. It doesn't need any extra help from a lighter spring.


I think the 150 is the right choice. But, you can put a 130 on it and see how it works. Not like it can't be taken back off. Lord knows I've tried enough stuff that didn't work...but knowing what doesn't work is as valuable as knowing what does.

What is the compressed length of your 150 spring at ride height?


If the results don't match the theory, change the theory.