Impulsive Behavior

Impulsive Behavior is a '51 CJ3A Race Jeep. It's not a dune buggy or a sandrail. The front axle is from a postal jeep, and all other parts are either custom or from after market sources. Even though it only has a single jeep part, the frame dimensions are true to an original CJ3A, so it is a JEEP.

I wanted a vehicle with more speed than my trail Jeep could provide, which is what motivated me to create a "purpose-built" vehicle that would run exclusively in the sand. I decided to build a dune Jeep that would not only do well in the sand; it would also be very fast.

Chuck had an LS6 Big Block Chevy (BBC) motor and he also wanted to build something very fast. The result was to put the powerful big block motor in a lightweight dune jeep. And it moves very fast!

The current Jeep has a 468 cubic inch BBC generating just under 800Hp with almost 600 lb-ft of torque. This power plant will move the 2100 pound vehicle to 82 mph in 4.04 seconds on a 300 foot long race track.

The frame was custom made by Rick Thomas of R-T Welding in Hesperia California. Rick has made a few jeeps but each one is slightly different. Impulsive Behavior is made to hold two big guys over 6' tall without rubbing elbows or sitting with their knees in their noses. The rear end is wider than most so Rick placed the four link suspension on the outside of the frame. We also used air bags in place of coil springs to adjust the ride height and spring rate more easily. The one-piece fiberglass body helps create the illusion of a stock Jeep CJ.

Impulsive Behavior | Too Impulsive | A Little Impulsive | Back