Rear Coil Overs And Spring Rate

aug4you · Post by **aug4you** » Thu Jan 05, 2006 6:15 am

Hello All, I am considering putting Fox Coil Overs on the rear of my buggy.
I need some help with spring rates. The buggy is a two seater with 3X3 rear arms and lobro 930 CV joints. shocks will be mounted at 90 degrees to trailing arms with a 3 degree inward tilt at top. This buggy is a East Coast Mountain( Mud Buggy). We seldom get over 20 or 30 miles per hour, most of the time it is more like 5 mph. The buggy is currently running 26 M/M sway a way long torsion bars and Bilstein 6100 shocks ,it has 13 inches of rear wheel travel and runs with 1.5 to 2.0 inches of droop. I want 14 inch 2.0 Pro Fox shocks. The wheel travel is for articulation not speed I would like to be able to run over creek beds (football sized rocks) without it beating me to death. If I have forgotten any needed info let me know. I just hope not to end up with 15 or 20 sets of springs before getting it right. Dual rate springs would seem to be the way to go with light spring to absorb small bumps without giving up all my wheel travel. Ground clearence is very important. Thanks in advance

scott the viking · Post by **scott the viking** » Thu Jan 05, 2006 3:28 pm

200lb top and 300lb bottom will get you close to what you want. If it's not exact, just lighten or stiffen the top spring rate to dial it in.

aug4you · Post by **aug4you** » Fri Jan 06, 2006 5:45 am

Thanks for the reply, I will order them today. also is the valving going to need to be addressed also or will out of the box be OK. The reason is shipping from coast to coast to revalve them is time consuming and $$$$. Thanks in advance.

MNAirHead · Post by **MNAirHead** » Sat Jan 07, 2006 3:34 am

STOP.....

You only need to send the valve kits etc. (probably not even this)

NOTE... many offroad (non vw types) and motorcycle shops can revalve in a few minutes. Remember the shock isn't designed to be on an exact car.

If memory serves correctly the Fox site has a venor list of folks who do the maintennace and service.

T.

scott the viking · Post by **scott the viking** » Sat Jan 07, 2006 6:51 am

BUT....

The valving on a factory setting is really just a middle of the road. Chances are (for the speed you are traveling) the stock setting will seem okay. You can make it better, but for bumbling around at 20 to 30 mph, spring rate is going to be your main concern.
Also..Tim is right, pretty much anyone can re-valve Fox shox, even you, but you will have to have them re-charged.

aug4you · Post by **aug4you** » Sun Jan 08, 2006 11:12 am

I appreciate all your help.