RE: Need opinion & info
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RE: Need opinion & info - 2/4/2007 2:43:00 PM
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shortbus
Posts: 3602
Joined: 6/27/2005
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i think you called it right to start with, it's a debate, maybe, not a heated argument. i didn't major in physics, nor was i a mechanic, but i'll stick with my opinion.
however, since you did major in physics, i have something i'd like your help with. we had a warn 9500 winch (mounted to the bus), connected to a snatch block on a pull pal, from there to a 9000 lb H1, with a snatch block and routed back to the pull pal. we were trying to pull the H1 sideways, on ice, to get the back wheel back up on the road. we ended up snapping the 14000 lb pull pal. we had about one layer of cable on the winch. how much force were we applying to the pull pal?
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RE: Need opinion & info - 2/4/2007 6:10:31 PM
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HumRluvR
Posts: 233
Joined: 1/19/2007
From: Alberta, Canada
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Hmmmm... I'm having a hard time drawing a mental picture on how both vehicles where positioned to each other, the angles, and the amount of friction involved to give you an accurate number. But i would say well over 14000 lbs of force was involved in your pull on that poor Pull Pal... LOL If you would of rigged this pull differently, Much of the stresses would of applied only to the block on the H1 And not on the Pull Pal!!! You Should of ran your cable from your winch to the block on the H1, then to the Pull Pal, and back to the H1. this way much less energy is needed from your winch, a greater reduction in stress on the Pull Pal, and most of the force would be applied on the block attatched to the H1!!!!
Let's examine your way of rigging, providing that the cable angles are within 30 degrees from your winch to the Pull Pal pulling 9000 lbs H1 with very little friction.
About 4500 lbs of energy is needed from your winch, 13,500 lbs of stress on that poor Pull Pal, and 9000 lbs of load on the block to the H1.
If you would of rigged it like i mentioned above..
Only 3000 lbs of energy is needed from your winch, 6000 lbs of stress on the Pull Pal, and 9000 lbs of load on the H1.
So now i think you get a pretty good idea on what happen to that poor ol Pull Pal...
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RE: Need opinion & info - 2/5/2007 2:31:13 PM
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ZYNE
Posts: 2446
Joined: 10/9/2006
From: Cincinnati, OH
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I see your point HumRluvR but I don't agree with it .. first of all if the road conditions were bad to the point where this would actually play in I'd either A) stay my ass at home or B) take it niiiiiiiice and eeeeeeeaaaaaaasy ... and if you hit ice, having em cranked up or not isn't going to be a factor .. it's the same slippery stuff regardless of ride height and the weight ain't gunna change either :-)
It doesn't take much to send a truck or car sliding out of control hitting ice ... I was doing less than 20 mph on a straight road when I hit a patch of black ice in my old Avalanche... I went sliding sideways in to oncoming traffic (2 lane road) before the truck launched over a 2 foot ditch/drop and took out a "stop light ahead" sign AND pole .. in mid flight at that. Coming to rest in the ditch on the opposite side of the road in the direction of traffic ... 180 degree, flight, pole/sign ...
Now if we assume we hit that same patch of ice doing 40 mph, or even at some idiot/dumba$$/waterhead speed of 70 mph in the same bad conditions ... do you honestly think the torsion bars being cranked will have ANY impact at all, negative or positive!?!?!! Even at 70 mph the amount of lift generated by a more or less square object is miniscule ..
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RE: Need opinion & info - 2/5/2007 3:29:42 PM
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gangstagirl
Posts: 105
Joined: 1/28/2007
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thanks guys for your info.... , i do like the look of it with the front up more level with the back ....but i'm still not sure.... thanks again gangstagirl 
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RE: Need opinion & info - 2/6/2007 3:05:22 AM
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kild1
Posts: 852
Joined: 12/26/2006
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i have a 2000 z71 w/the t-bars turned up
and has been that way for 140k+ and have yet to have a problem
it has add-a-leafs in the rear and the t-bars turned to fit the 33's
summer look
winter look
< Message edited by kild1 -- 2/6/2007 3:11:27 AM >
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RE: Need opinion & info - 2/7/2007 3:09:20 PM
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gangstagirl
Posts: 105
Joined: 1/28/2007
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ok so let me get this right most of you are saying by turning the tbars up it will make my front end sit alittle higher more level with the back end .....when looking at the hummer does the front seem alittle lower to you guys to....or is thisjust me seeing it this way thanks agian guys
gangstagirl
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RE: Need opinion & info - 2/7/2007 3:22:01 PM
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ZYNE
Posts: 2446
Joined: 10/9/2006
From: Cincinnati, OH
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Yep, it has a bit of a nose down look to it from factory I think .. Cranking em will force the front end up X amount based on how many turns on the t-bars.
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RE: Need opinion & info - 2/7/2007 4:18:53 PM
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HummBob
Posts: 15769
Joined: 5/6/2006
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quote:
ORIGINAL: gangstagirl
ok so let me get this right most of you are saying by turning the tbars up it will make my front end sit alittle higher more level with the back end .....when looking at the hummer does the front seem alittle lower to you guys to....or is thisjust me seeing it this way thanks agian guys
gangstagirl
Yeah gangsta, they kinda nose down a bit, but I like the way it looks!!! Kinda MEAN!!!
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