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Unread 11-06-2004, 06:30 PM   #1
sulaco
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Join Date: Jul 2002
Location: Santa Barbara, CA
Posts: 251
Vehicle Weight

I was wondering what did you guys think of light offloading vehicles vs. heaver ones. Iíve seen some Jeep rigs where they took a CJ5, striped the thing to the frame and have a tube role cage for the driver and thatís it.

So I just started to wonder, would a light CJ5 style Jeep be better overall compared to heaver jeeps, for example the Willyís MB weight was only 2160lbs. However It probably would depend on the type of off roading your doing, so in some cases yes and others no...

Willyís MB weight found hereÖ
http://www.geocities.com/Yosemite/6586/history.htm

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Last edited by sulaco; 11-06-2004 at 10:59 PM..
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Unread 11-12-2004, 06:32 PM   #2
lupinsea
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2001 TJ Wrangler 
 
Join Date: Jun 2004
Location: Kenmore, WA
Posts: 3,586
I think as a general rule of thumb a lighter vehicle is better. When you start out with a heavier vehicle it turns into a big weight gain cycle: Vehicle weighs more so it needs stronger (heavier) axles/suspension, now you need to bump the power to move a heavier vehicle, and then you need to upgrade the drive train to handle the power. Each of these adds weight.

Or you are going to place more stress on standard components if you increase the weight too much with all sorts of aftermarket gear: winch, offroad front bumper, hd skid plates, rear tire carrier and big rear tire, hd rockerguards, spare gas cans, roof racks, dual battery setup, OBA, etc. etc. etc. A fully stocked rig can add hundreds of pounds to a stock vehicle's weight. Oh, and toss in a couple passengers . . . there's another 300 - 400 lb. not to mention the driver.

One of the sweetest rock crawlers I've seen used a tube-frame chassis. It had a mid-engine air-cooled Porsche 914 powerplant. No need for a radiator and cooling system. Light weight magnesium crank case (compare this with cast iron chevy small block v8). I think the owner figured he shaved 700 lb. off the weight of a typical rock crawler with his setup. So he was probably weighing in at sub-2000lb. weights.

Very impressive.
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