Chassis/Frame

Red Jule Frame

Red Jule Frame

The Original Chassis/Frame

The car’s chassis had been lengthened for the rear seats in the production of the 100 six BN4. Other than the change for disc brakes, there were no significant changes for the 3000. 100-6_3000 ChassisDesign.

Modified Chassis/Frame

Storage in damp surroundings plus over forty years of life left BT7 L4422 with substantial rust and corrosion. It was a difficult decision, but since I was building a “driver”, I decided to use Martin Jansen’s Jule Enterprises frame. My sons and I visited Martin’s shop just outside Toronto, Canada before making the final call. http://www.jule-enterprises.com/ Martin is a great fellow with whom to work. He and Don Stewart substituted Martin’s new frame for mine and reinstalled the tub superstructure, including the replacement of several panels such as the floors in the interior and in the boot.

Martin Jansen's Frame Building

Martin Jansen’s Frame Building

Martin Jansen's Tub Reconstruction

Martin Jansen’s Tub Reconstruction

Martin Jansen's Tub Reconstruction

Martin Jansen’s Tub Reconstruction

 

 

 

 

 

 

The Jule frame uses 1/8” wall by 3” x 4” steel rectangular tubing for the frame rails. The Jule frame has a static bending strength 40 percent greater than the original reducing frame deflection. http://www.jule-enterprises.com/wp-content/uploads/2012/07/asurefoundation.pdf Torsional strength of the Jule replacement is a 140 percent improvement over the original. The downside of the modern substitute is 80 additional pounds: 135 vs. 215 lbs.

Arrival Day: Marty, Scott, John, Lin

Arrival Day: Marty, Scott, John, Lin

The purists ( I don’t use that term in a disparaging way at all), will not like Marty’s frame, and the hobbyist may be confounded by finding the proper alignment of mounting holes in the frame or in replacement superstructure panels; but, it is hard to dispute the improvement in ride quality. My car is now rock solid, no creaks and twists, just great handling with a firm solid ride!

Front View Superstructure

Front View Superstructure – Before

After all of These Years

After all of These Years

Primed and Ready for Paint

Primed and Ready for Paint

Red Frame Curing

Red Frame Curing

Mounted to Move

Mounted to Move

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2 Responses to “Chassis/Frame”

  1. David Seib says:

    How has the response by other Austin-Healey enthausist been to the Jule frame in your opinion? Mostly in favor or against?

    • valv8988 says:

      Hi David,
      I am sure that some of the purists don’t accept it. However, I have yet to meet anyone who has installed a Jules frame who is unhappy. No doubt that if someone is looking for originality then a Jules Frame will hurt the resale value of the car. I didn’t much care about that. I was looking for a solid, stable ride with no frame twisting and scuttle shake. In that area, the Jules frame delivers in spades. I am a very happy customer. If you have looked through my site then you have seen that I have made many other “personalizations.” I made the car for me – not some future buyer. That said, I have the highest respect for original cars and I love the cars as designed.

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