superloaf

anyone know the length of the springs in the Ground Control Paragon kit? i'm guessing 8" but would like to know for sure.

thanks

JohnKoaWood

Depends on rate, as does the ID of the spring... shoot Jason an e-mail and he will let you know..

I have 2.5 inchID 300LB springs..10 inch length... but they are Hypercoils not GC... got them from Jason with the ARHK to fit my GC adjustable camber plates (Plates came with 2.5 inch hats so Jason deleted them from the kit I bought...)

Mike Murcia

I was shipped 12" 250# springs with my Paragon kit, but they were too long. Jason then sent me a set of 10s and explained that it is sometimes a guessing game with these cars. The 10" springs provide a nice range of height adjustability at 250#, but you may need 8" springs for much higher rates.

2bridges

325# 10" front spring here - at the bottom of collar to get desired ride height.

If you want it low and are over 350# I woul expect and 8" spring will be needed.

superloaf

ahh, yeah i wondered if the rate mattered. guess it does. i just came into a super cheap set of similar coilovers which i'm using on my scirocco, but i may not use the sleeves on the front as the springs that came with the kit are too long so i'm cutting to the proper length. so them maybe i can use these adjustable sleeves on the porsche.

cool, thanks for the info. didn't realize there was that much travel up there. and probably won't be going too high in rate as i will match to a set of rear torsion bars i have which are only 26mm.

hmmmm, but after putting somewhere around 400# in the scirocco, i must say i love the stiff linear rate springs. they ride way better than the crappy progressive spring all the vw tuners sell for these cars. but with less than 4 inches of wheel travel, the vw A1 chassis is a tough cookie to get right. however, i've become a strict believer in super stiff springs, bilstein shocks and keep as much ride height as possible.

smlporsche

I've got 2 pairs of almost new hyprcoil springs 2.25" x 8" in both 300# and 350# if anyone's interested...

superloaf

so i've installed some 2.5" ID springs on my scirocco and i have a set up which is truly amazing. i never knew these cars could feel so precise. it just goes into the turn with little or no lean and since there is no wasted energy in compressing the spring, the car literally feels like it speeds up through the corner, i guess since i'm so used to that lean/scrub deceleration which always has to be accounted for. anyways, the spring rate i ended up with is 400# in the front and some unmarked & unknown rate in the rear but obviously softer.
so what the hell does this have to do with porsches, you ask? well, i can't understand how a 250# spring is considered a performance upgrade for the 951? am i missing something here? i mean they're both macpherson struts or is there a difference in wheel spring rate that i'm not considering? anyways, it just seems like the 951 would need at least the equal of the vw but i would think more.

FWIW springs on the scirocco are 8" long, and 400# as stated. also, car doesn't ride so bad as i've resisted the urge to lower it too much and so it rides better than any sport spring i've evr used for these cars. and for those of you who know the vw A1 chassis, it only has about 3-4 inches of wheel travel when stock so after lowering, it rides like a dog. this car will never ride decently and handle well but i've learned that every 1/4" of extra wheel travel is worth its weight in gold.

if you're interested, here's the vwvortex details:

http://forums.vwvortex.com/zeromodif...st&id=60428360

oh, yeah, i forgot, i put 16" phone dials on it so there's some porsche love for you!!

superloaf

no thoughts on 951 spring rates? are 400# fronts too stiff for street? how is 250 a sport setting? with further consideration i have to imagine that the wheel rate between 2 different cars is not comparable but i still have a hard time believing it would be that different with macpherson struts on both cars.

2bridges

thought?????s, well sure - 250 is way too soft and a waste of time for even street car in my book. 350 is firm, but plenty soft for street coupled with the right damper....... with 325lb and konis soft my wife does not mind riding in the car except on the worst washboard chopped up roads. I would go 375-400 if I had it to do over.

I think the damper is the real key. Have driven a bilstein escort damped 450lb.... that thing would beat the fillings out of your teeth and bruise your spleen within 2 miles of streetdriving..... it was absolutely awful, every bump was a jarring experience.

Have also ridden in a 400lb koni (on soft) setup and it was certainly firm, but night and day different from the escort setup, and definitely street able in my book. I don't think I would want quite that much spring for myself daily driving however.

To be fair the escort setup was running 18" wheels, while the koni was 17s.
Also 400lb is about the effective limit for the standard konis.

superloaf

of course the problem is the rears. what torsion bar goes with a 350 front spring? (damn, wish these cars had rear coils stock!)

i actually have some 26mm TBs (ebay $15 special) but will i even notice a difference with them? i've been told that a front spring to match would be around 250 so they might not be worth the effort.

333pg333

Some have much stiffer than 250 or 400 but on the street the shock / valving will make all the difference. I run 626lb/in. Not too bad on the street, could go up stiffer on the track though.

2bridges

no problem - vendor can assist you with matching tbars. - paragon, lindsey,etc

I went 29mm, it is a nice match to the 325-350 spring.
30mm would be appropriate for 400-450 as I recall