Chassis Team Progress

1
Chassis Team Progress

• Current Progress Design of monocoque completed.
  Modification of mold underway.
• Goal Complete modification of current mold. Prep
  for carbon fiber.

2
Engine and Drivetrain Progress

• Current Progress Engine, transmission and final
  drive with torsen differential prepped for
  assembly.
• Goal Complete engine transmission and final
  drive assembly.

3
Electrical System Updates

• Researching MoTeC and MyChron3
• Wiring diagrams
• Test sensors
• Direct fire ignition system

4
Customer Requirements

• The intended market is the nonprofessional
• weekend autocross racer who will look for
• Performance
• Maximize acceleration, braking, and handling
• Cost and Manufacturing
• Low in cost (gt25,000)
• Common parts
• Reliable

5
Benchmarking
Metric Min Max
Weight 370 lbs 680 lbs
Chassis Type Steel space frame, Monocoque, Hybrid Steel space frame, Monocoque, Hybrid
Engine Type 600cc 4 cyl., single cyl. 400-500cc 600cc 4 cyl., single cyl. 400-500cc
Final Drive Gearbox, Belts, Chains, Shafts Gearbox, Belts, Chains, Shafts
Suspension Double a-arm with push or pull rods Double a-arm with push or pull rods
Wheel Base 1525mm 1830mm
Front Track 1168mm 1447mm
Rear Track 1092mm 1447mm
6
Benchmarking Results

• Weight approx. 400-425 lbs
• Chassis Carbon Fiber semi monocoque with steel
  sub-frame
• Engine Honda CBR F2 600 cc
• Final Drive Gearbox with torsen limited slip
  differential
• Suspension Four wheel independent double a-arms
  with push rods.
• Wheelbase 1828 mm
• Front/Rear Track 1320mm/1270mm

7
Summary of Progress

• Rear suspension has been modeled.
• Engine and transmission have been prepped for
  assembly.
• Final drive with torsen limited slip differential
  prepped for assembly
• Researched MoTeC wiring schematics.
• Modification of old monocoque mold has begun.

8
Goals

• Suspension to be completely designed and analysis
  completed with Lotus software.
• Complete assembly of engine, transmission, and
  final drive.
• Begin wiring for stand alone engine management.
• Monocoque mold prepped for carbon fiber lay up.

9
Questions?