Stohr Photo Gallery - Page 1

Stohr Chassis Main Page

"Here are some photos I took quickly for the Homologation paperwork. The body is straight from the molds, we have not done any mounting yet. All the pieces (nose, tail, sidepods) weigh a total of 50lbs. They are nice and stiff, having 1/8" honeycomb all over. The little headrest piece is not here yet. The rear wing is carbon fiber by Pennon. The car finally rolls! Now to make it run ! Lee

The left photo is of the torsion test setup. The twist is measured in various places with the dial indicators seen under the front.  The chassis is loaded by hanging weight on the right front suspension, so loads are fed in realistically.  The front of the chassis pivots on the jack located in the center.  The rear is supported under each rear upright, so loads are fed through the entire suspension and the whole assembled car.  Rear shocks are locked in this setup.

"We spent Friday [8/10] doing a chassis load and torsion test.  We found the torsional stiffness acceptable, similar to a modern Formula Ford. If we have time, we can increase it pretty easily.  We did find that the interchangeable lower rear A-arms won't work.  There will have to be a right and left lower rear A-arm.  I had hoped to use a bolt on pushrod end bracket, which would allow the same A-arm to work on either side, but it is just not stiff enough, and some shock motion ratio was lost too.  My rear suspension design just can't be compromised that much."
Lee