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Summary on shocks

Yahoo Message Number: 50428
In review of the response Mikee is probably correct. Improper air bag pressue is the main cause. In review I find that the repeat bounce was eliminated when the shocks were adjusted to firm. I do not go fast in areas where the road can cause the bottom out condition, what happens to me is California does not finish a freeway segment and one then fly's off the other end. Or the uneven road after repair. I do not know where to go for the review of bag pressure, but I do believe that bag pressure is the first step.
Sincerely,

Jim Spivey

Re: Summary on shocks

Reply #1 –
Yahoo Message Number: 50432

Question added to summary, when on a road with cracks or seams, the tires are slappin or hitting rather hard, which is then is absorbed by the motorhome, would a better shocks say Road Kings correct this, on a streach of highway last night felt like I didn't have shocks at all.
Could someone with Road Kings comment, thinking of taking the plunge.
Mike 06 51795

Re: Summary on shocks

Reply #2 –
Yahoo Message Number: 50439
I believe correct air bag pressure =s correct ride height.

Larry, 03 Allure 30856
 

Re: Summary on shocks

Reply #3 –
Yahoo Message Number: 50441
The bag pressure is solely a function of how high, it takes air pressure to raise the coach, when it is at the right height the air pressure will stay static, as the load increases the ride height control valve will add more air to raise it up, if it raises it will let air out to lower it. The big trick here is to be sure the bag is at its best height under normal conditions, a bag that is too big for the application will bounce, a bag that is too small will ride like a truck. The right bag will hae the right amount of air in it to absorb road shock without over reacting. Other things can be afactor as well, it is a combination of several things together that make it work correctly.

If you want the math, here it is:

radius squared times 3.14159 equals square area... 10" bag has a radius of 5" 5x5 =25 X 3.14159 = 78.54 sq inches.. if the bag has 80 psi of air in it then it will support 6283.2 lbs. Now if it is an 8 inch bag it has an area of 50.27 x 80= 4021.6 lbs now a 12 inch bag goes like this 113.1 sq inches x 80 = 9048 lbs, notice a lot of difference with small bag size changes. It would be interesting to know the diameter of the current bags, I am starting to think the bags are too big for the application, thus they are under inflated and will compress a lot due to low pressure. A slightly smaller bag than needed will give a slightly harsher ride, but will not bottom out as quickly as it does not have as much give..
Hopefully this short dissertation will let you know why I feel I can figure this out fairly quickly. If it is solely bag size they can be changed pretty easily... there are other things that need to be checked as well..

Does anybody know the current bag diameter?

Mikee