THe NAC Lots-O-BFG KO2 Thread

Re: THe NAC Lots-O-Post Thread aka North America Home Owners Association Thread

Parked in a snow bank this morning, felt badass, forgot to turn my headlights off, came out after work to a dead battery, had to jump it while it was up in the snow bank with many people pointing and laughing, didnt feel so badass anymore.
 
Re: THe NAC Lots-O-Post Thread aka North America Home Owners Association Thread

you should probably just give up on life now
 
Re: THe NAC Lots-O-Post Thread aka North America Home Owners Association Thread

Dish machine got jammed up, had to go waist deep or balls deep depending on how u look at it to fix it.
 
Re: THe NAC Lots-O-Post Thread aka North America Home Owners Association Thread

ROBZ95Xj said:
Dish machine got jammed up, had to go waist deep or balls deep depending on how u look at it to fix it.
Click to expand...

when i worked dish the damn machine always broke. Especially right in the middle of sunday brunch. Super lame
 
Re: THe NAC Lots-O-Post Thread aka North America Home Owners Association Thread

dukie564 said:
when i worked dish the damn machine always broke. Especially right in the middle of sunday brunch. Super lame
Click to expand...

easily gets the most use out of any piece of equipment and gets zero maintnence until something breaks, great thinking
 
Re: THe NAC Lots-O-Post Thread aka North America Home Owners Association Thread

So, I've encountered this on a rover forum:

p m said:
But of course gas shocks add lift. If you have to force it to compress, they will provide just as much force to expand.
This force is a product of the gas pressure inside the shock and the cross-section of the shock rod. Stock replacement Bilsteins are at about ~30 lbs of force, so it adds little to the lift (about 1/8" or so). You can get more out of 7100 or 9100s.

And pressure inside the shock doesn't change the stiffness of it at all.
Click to expand...

robertf said:
Engineering pissing match time
It's closer to 85 lbs. which is why they are such a pain to install

14mm/25.4 *pi /4 * 200 psi is around 85 pounds. On. 280 lb/in rated spring that's almost a third of an inch of lift
Click to expand...

p m said:
You really shouldn't be doing that :)
pi*(14mm/25.4mm)^2/4 * 200 psi is 47.7 pounds :)
Click to expand...

Uh, what? They are talking about gas-charged shocks here, not air shocks. Doesn't the gas pressure only exist to displace the shock oil? And obv comp/reb is different (unless you valve it that way) so the force close /= to force open, correct?

I'm no engineer so I can't counter in a smart way with numbers and whatever.
 
Re: THe NAC Lots-O-Post Thread aka North America Home Owners Association Thread

all it will do is increase the spring rate of the suspension sightly. The pressurized gas is mostly there for anti-foaming purposes

And i have no idea what they are calculating - looks like they are using the diameter of the shaft to calculate the force, which is completely wrong since there is a plate on the end of the shaft that adds additional area. The force pushing "up" will be slightly more than the pressure pushing down since the shaft takes up some of the surface area on the top side - which is why gas shocks extend on their own. The actual force to compress them would be the pressure pushing up - pressure pushing down + the force required to force the fluid though the bleed holes in the piston (you'd need to know some pretty detailed info about the shock construction to calculate that one)

tec_shockabsorbers_09.png
 
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Re: THe NAC Lots-O-Post Thread aka North America Home Owners Association Thread

As far as I know, the gas charge is to pressurize the oil which raises the boiling point and reduces cavitation. I'm no expert.

The charge will definitely add some lift however minute it is.
 
Re: THe NAC Lots-O-Post Thread aka North America Home Owners Association Thread

although bottom area - top area = shaft area so i get what they did there
 
THe NAC Lots-O-Post Thread aka North America Home Owners Association Thread

XJLI said:
I understand it adds rate, but I doubt it adds a calculable amount of lift
Click to expand...


I would say at max an eighth inch.
 
Re: THe NAC Lots-O-Post Thread aka North America Home Owners Association Thread

XJLI said:
I understand it adds rate, but I doubt it adds a calculable amount of lift
Click to expand...

ask em how much lift you loose when you pick up a hooker and/or get a coffee from starbucks
 
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