Simplicity. Reliability. Efficient packaging. Driver safety. Light weight. Torsionally stiff. Low cost.

 

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December 10, 2002

Laying the pipes down

Electrical conduit piping is used to create the mock-chassis. Made of galvanized steel, so welding is possible.

 

 

December 14, 2002

Tack weld mania!!!

The mock-chasssis is held together with strategically placed tack welds. I kid not.

 

Below, Patrick sets-up the conduit for welding. He is aided by aluminum scraps, masking tape and two bricks.

Here Roberts gets down and dirty to finish off several welds.

Again, spot welds are capable of holding the mock-chassis together well. Saves mucho time.

 

 

In the following model, Patrick sits in the nearly completed mock-chassis to give us a relative look at the dimensions of the chassis.

Here, the decapitated driver is situated in an upright-sitting position. Which would allow us to cut down on the wheelbase. However, the more upright position, will raise the center-of-gravity of the vehicle(which increases bodyroll in turns.)

 

The human model is in a layed-back position. This allows the CoG to be lowered. Makes the suspension guys happy. Room is also alloted for the fuel tank. Which would be placed near the dairy-aire of the driver. A con is the loss in the driver's steering leverage. Dirk may have to visit the weight room more often or get on a diet of PB. This mock-chassis enables us to consider driver ergonomics issues realistically.

 

 

Things to do before chassis finalization:

1. Drivetrain assembly: drive components will affect the size of the rear drive bay. Possible problems with the inner CV joint location.

2. Half-shaft/drivetrain alignment with the uprights. Depends on amount of angulation the CVs can still operate through. Though 180deg is optimum. Affects the rear aarm design and chassis length.

3. Take into account the amount of length the suspension mounts take up. Affects the actual width of the chassis, from outer tube wall- to outer tube wall.

4. Steering rack location and methid for mounting.

5. Shock and bellcrank mounting.

6. Determine engine mounting options.

7. Driver ergonomics/factors: seat, steering wheel, pedal distance, front roll hoop, foot clearance, shifter location..

8. Radiator positioning in sidepod area..

9. Can we decrease wheelbase without too much trouble?