front spring rate question? Options

[brant]

I'm not exactly sure where to start with this one..
Let me tell ya where I'm coming from...
On the rear suspension... I've been told to increase spring rate when I step up to a non-poly spherical type bearing.
I was told that without the drag of the poly bushings, I would need to go up 100ish lbs to compensate for that drag.... and keep close to the same effect suspension rate back there.

So... Here is the actual question. If the above is true, would it not then be true that with a front bearing suspension (like Mike Muellers).. that the front spring rates (be it torsion or coil over) would also need to go up....
In order to keep the front rear balance...

Brad..... On the track only cars you set up with 300... 400... rear springs... what kind of front spring rate do you end up with...

somewhere I once saw a conversion chart to compare torsion bar milimeters to coil spring foot pounds.

brant

[Brad Roberts]

Your on the right track.

Problem is: the drag is only about 25-30 lbs. The springs normally sell in 25lb increments.

Step up 25-50 on your regular springs.

We run 250's in the rear of a 9146 narrow body car on Hoosiers.. it also has a 31mm bar.. meaning I could step up to 275's and back off on the bar a little.

B