CMR 79 - 2008

CMR 79 was an evolution of CMR 37 seeking to improve upon the success of 37 and making improvements in transient handling and engine drivability. These goals were accomplished through experimentation with the wheelbase and ackerman and longer primary exhaust runners. Additionally, 8 pounds were shaved from the previous years design further helping performance. This was almost for nought as a problem with the TPS prevented the car from running in either acceleration or skidpad and only a poor showing in autocross. However, 79 refused to die quietly and became only the second car in CMR history to finish endurance, passing many other teams on the way to a 26th place finish.

CMR 79 During Endurance

The Team at Competition

Finishing Endurance

Specifications

Body

4 piece carbon fiber body from female molds, male plug machined by Honda
Professional PPG paint job - Carnegie Mellon Red

Chassis

Tubular steel space frame
Strength optimized using Ansys FEA
Very-low center of gravity
Jig mounted during construction for build accuracy
Painted for corrosion resistance

Suspension

4 wheel independent suspension
Unequal non-parallel suspension links
Adjustable ride height
Adjustable shocks
CNC machined uprights
Push rods on all 4 corners

Engine

2004 Honda F4i
Performance Electronics ECU
Custom barrel throttle
Custom CFD optimized carbon intake, conical air filter
Equal primary length Tri-Y exhaust header
Custom muffler
Engine Redline: 13500 rpm
Max Power: 80hp

Brakes

Custom designed floating rotors
Single rotor rear braking
Custom CNC machined adjustable pedal assembly

Competition Results

Overall: 53rd of 110
Acceleration: DNA
Skidpad:DNA
Autocross: 75th
Endurance: 26th
Design: 61st
Cost: 50th
Presentation: 100th

Cars