Spring rates

[alga]

All things being equal, spring length changes the ride height, but since the ride height is adjustable anyway, there should be no difference as long as it's in the right ballpark. All my springs are 8" long, and with the softer springs the adjusters are close to the middle of the thread front and back.

I set up the ride heights by piling 4 wheels with tyres on the driver's seat, and then getting all 4 lower wishbones level. Seems to have worked OK, but I plan to get the corner weights balanced at some point.

[flyerncle]

Used shorter heavier springs (ie 350/250) on the Haynes I built to race for someone and it had very pronounced oversteer,it had Ginetta rear uprights that are are direct fit for the Haynes and same dims and Protech shocks with the springs as stated,just too much of a racing car for the pilot.

[baz-r]

I think that something is going on wrong herei can't seem to get the same workings out when I calculated it off my car (Sierra based)
To get the ratio of 1:1 in the rear then the shock and spring would need to be vertical?
The suspension tec guy who gave me the equation to use after I had my sprung and unsprung weights calculated said to simply measure the difference in ratio between the change in short planks against the distance Moved by The Hub centre height giving you a true shock ratio
I was pretty close to my estimated figures with my car finished
350 is pretty good on the front end and I increase the back to 260 and its not over firm and handling is pretty balanced

[Ianr]

I went 350/250 on mine but found that whilst it was perfect one up it needed a bit more for bumpy roads in north Norfolk so went to 350/300 which worked fine (My passenger was over 6'3" and I'm over 6' so smaller lighter passengers will probably be better with your 260 rears)