Advisable GC springrates for a canyon carver...

[JeffRR]

I agree with Terry,

With out knowing exactly what type of ride trouble your having, I'm going to assume that its not the spring rate. Most ride complaints on lowered cars are not from springs, you'd be surprised with how much spring you can run with proper damping. Look at your bump travel. Your most likely bottoming on the jounce bumpers, its very common on lowered cars.

I've had experience with the Koni's/GC's, even on a marginal drop the Koni's don't provide enough compression damping to keep you out of the bump stops. Adding some mid~high speed compression (that's shaft speed) will help.

I've developed a number of lowered production cars and every time I run into bottoming in normal driving and end up cranking in the compression damping. The other solution is to find more travel but that's not always so easy.

The reduced height Koni's that GC sells is another option but I don't have any experience with that set-up, they still may need to be revalved.

Koni will revalve your shocks for a fee.

[DSP74]

If you end up going softer, which I think you CAN go softer with coilovers let me know. I want the front springs. And I may even be interested in the rear springs....Are the rear springs the same dimension as the front with the GC stuff?

[AlarmedBread]

Thought about tender springs? Coupled with the regular springs you could make a progressive setup which would be soft for daily driving but stiffen up when you need it to. It would obviously increase body roll I'm no expert on using such setups, but possibly something to look into.

[pogiboy9]

you will need some new lumbar discs in a few yrs......give me a call...I take ins!

right, so i take it all the riders in california should see you too ? are suggested walk ins your bread and butter?

[Fair!]

Currently my car (89 325I) has 375 lb's fronts and 475lb backs. It rides like a hung of plywood with wheels attached so it needs to be softened up substationally. Any ideas what I should drop it down to?

Stick some zip ties around the strut and shock shafts, pull them snug, now slide them to the bottom of the shafts. Drive the car and check them in a few weeks... if these "tattle tales" are then buried up inside the bump stops, that means your suspension is bottoming out - which would explain the poor ride.

This is the NUMBER ONE reason people with extremely lowered cars complain of poor ride. Some people remove their bump stops "for more travel" and wonder why their shocks explode, too. ;) Don't overlower your car, and keep an eye on your shock travel.



I wouldn't run much softer rates than you have, for sure. Our autocrossed E30 (shown above, at road course speeds) has 570F, 570 R #/in springs, and we had 750 rear at one point (testing showed it was faster with less rear spring rate, for our set-up that doesn't have and can't use an LSD). The car still leans more than I like, and needs more swaybar even with these rates. Its daily driven, and while it is "firm", it is not "harsh". A lot of that has to do with the shocks, of course. We can get away with a lot more spring rate using adjustable monotube shocks and the valving at full soft (for street use). Bigger pistons, and all that.

Cheers,

[JRKOUPE]

eh, i DD on 450/750 and solid mounts front and rear. im running top adj konis in the rear and short bodys in front.

you will need some new lumbar discs in a few yrs......give me a call...I take ins!

[K-Swiss]

Well I obviously need to do some investigation. I didn't build this car and just bought it the way it was....

[golde30]

eh, i DD on 450/750 and solid mounts front and rear. im running top adj konis in the rear and short bodys in front.

[K-Swiss]

Of course your a patsy...
maybe you just want to kiss and make up but I don't swing that way buddy.

[rwh11385]

Why because you don't even know me? Everybody knows your just a flame starter on r3v. Sorry dude but fuck me for asking a technical question and having it go sideways thanks to you.

I thought you were blaming your sideways problems on falken 512s now me?

[K-Swiss]

Why because you don't even know me? Everybody knows your just a flame starter on r3v. Sorry dude but fuck me for asking a technical question and having it go sideways thanks to you.

[rwh11385]

But your a waste a space and idiot.

I'm just quoting this for the amazing irony.

[K-Swiss]

Further more I don't go blasting down canyons in the rain Einstein. Isn't it time that you go do something useful?

[K-Swiss]

Boo fricken who. That was when the car was under tired on falken 512s. 512s merely suck. Its now on a set of 452 and its tail happy antics are now settled.


Dude your a moron. . Honestly if you had posted up the "maybe your shocks are blown or your running on your bump stops" fine. But your a waste a space and a idiot.

[rwh11385]

better than a waste of human flesh who will burn in a fiery crash in some canyon in canada...

haha.
"I'm such a good driver and sooo won't wreck it but can't keep it straight in the wet!!!>>!!"

http://www.r3vlimited.com/board/showthread.php?t=84471