Ok, here's the deal. I'm designing an upper shock mount lowering kit for my raptor to be used for motocross. I am speaking of the front shocks .This would be the only one to date I know of certified for MX use. I'm trying to figure out the maximum load I will need to test with; the newly welded mount that is, because I am going to be using a hydraulic jack with a load cell. The answer needs to be in pounds of course. I found a few formulas but the answer comes out way too high. I tried this one which is the formula for work=1/2MV(2), but I guess I need one for impact force. Here is a few variables.

Me=200 lbs
quad=400

As far as velocity goes, it's hard to say nobody is ever falling straight down and as far the the two weights given, the rear shock should absorb half of that. And it should be divided once again because there is two shocks up front am I right?

All input is welcome thanks.

 

hhmm *gets mathbook* man are you gonna make me think on christmas vacation??

 

there's a cross brace between the shock mounts correct?? cuz if you get enoguh force and it bottoms the shocks won't it bent the mounts or sheer them off?

 

I know a lot of these equations, and could figure them out if no one else helps ya out..........A simple on is Force = Mass x Acceleration(F=MA)


You might also try posting this in the off topics section, there are some engineers on this site that will somehow remember the equations..........

 

Dawg, you will have to design the mount to absorb all of the quads weight. Assuming a max of 65 mph on an mx course you are talking a tremendous amount of force being applied to the mounts. Why not take the lights off and have a competent welder re-weld the mounts in a higher location?

 

Do you think removing the old cross bar/mount by grinding and/or torch would compromise the original frame tube it is welded to?