Engine

2005 Yamaha R1

Rotation of engine: A motorcycle engine output shaft is normally parallel to the rear wheel axial. For our design, we chose to rotate the engine 90 degrees counter clockwise (CCW) along the horizontal plane. The benefit of this modification resulted in solid drive shaft similar to that of a car. This drive shaft is stronger, safer, and produce less noise compared a chain driven system.

We wanted the best wait distribution in our design. The centroid of the engine was calculated and found. The engine was then rotated a few degrees CCW along the firewall. The firewall is vertical panel that separate the engine bay from the driver's cockpit.

Output shaft location: The location of the output shaft was extremely important, because we are using a torque tube system and early ford banjo rear axle housings, we needed the shaft centered between the frame rails. we achieved this be rotating the engine and sliding the engine over, the weight bias was offset by the water tank, fuel tank, and battery.

Engine mounting: With this new engine configuration, specialized mounting brackets had to be designed and fabricated. 3/16" Hot-Roll Steel plates were profile and welded the 3/16" angle iron. Engine mounts were designed and fabricated from the surplus of our frame rails, A513 2"x3" box 11 GA.

Oil baffle: Because the engine is rotated and no longer in the stock position, we were worried that the motor might not get the oil it needed. We did some research and realized that people who use motorcycle engines in automobiles but baffles into the oil pan to control the oil flow.

Water: A 3 gal capacity aluminum tank constructed from 0.125inch plate. This tank will provide sufficient cooling for our 200hp power plant and its intended use. A thermostat will be fitted to the tank along with a heater to help bring the engine to operating temperatures. The water inlet and outlet ports were modified to direct the water to the tank.

Fuel: A 5inch x 0.125wall 16inch long aluminum tube was used along with two machined flanges to house the stock yamaha fuel pump and filler neck. The capacity of the tank is 1.5gal. Enough fuel to run the car down the track a few times.

Exhaust: The stock exhaust was used during testing of the engine and was modified to fit into the car. A new header will need to be constructed before the car can race.