track suspension info needed... Options

[Jeroen]

Hey all,

Gathering suspension parts for my track car and I'm trying to make up my mind

I'd like to go with yellow adj. Koni's.
Does anybody now up to what spring rate the yellow Koni's can handle?

Should I go for torsion bars (22 or 23mm)
I can have the struts modified for coilovers for about the same money I'd need to spend on the t-bars
Coil over springs are pretty cheap and I wouldn't be stuck with just one spring rate

Any info on springrates in relation to the weight of the car?
I'm aiming for about 1750# for the car and was thinking about starting with 275 or 300# rear springs

Does anybody know the spring rates for the front torsion bars?
I've been looking into it, but different sources quote (very) different rates (IMG:http://www.914world.com/bbs2/html/emoticons/wacko.gif)
Anybody running big front t-bars (22 or 23mm), what springs are you using in the rear?

I know, lots of questions, but I'm trying to figure out my options, so any advise is welcome
Right now I'm looking at too many unknowns to make a decent guestimate

thanks...

Jeroen

[brant]

I've lost it now and its probably the same one you've already seen.. but there once was a comparison table on pelican that showed the torsion bar diameter = xxx lbs.

I've always run 22mm front bars (about 15years of DE and wheel to wheel combined). I've tried rear spring in 200/250 and now 275with my non running -6

I know others use 23's but I was strongly steered away from these by my builder AJ... He believes that you can over spring and loose traction.

he runs aero on his rear with very high spring rates around 400lbs to compensate for the aero yet still runs 22's on his front. (probably a 1700 lb car also)

he builds ton's of coil over race cars and admittedly is a very good driver himself. The funny thing is that he is faster than many of his customers in his 2.2L -4 car with torsion bars.......