As promised here: SSC Tuatara hits 331 MPH (533 kph) - Holds New Production Car Record
A “loose” replica of the record-breaking SSC Tuatara. I had to go through several iterations and two whole prototypes to get everything dialed in.
Some of the challenges along the way and I how I overcame them.
- Excessive wheelspin in the lower gears - added torque limiters using boost-by-gear
- Turbocharger failure - raised the 900 C limit to 1020 C. They still overheat approaching top speed, but they don’t fail anymore. The car will run out of fuel before anything has a chance to melt.
- Engine overheating - Beefed up the cooling system. The car still gets hot approaching top speed, but it won’t blow a gasket or fry the rings.
- Unstable at high speeds - The first prototype is stable up to about 270 mph, then the front end gets very light and the car wanders. At speeds above 300 mph it stabilizes right up to it’s electronically limited top speed of 342 mph. The second prototype has revised aerodynamics and remains stable up to 300 mph before the front end gets a little light (much more controllable than the 1st prototype). By 315 mph the car stabilizes up to the same electronically-limited top speed.
Planning on adding a third prototype (in white - complete the trio ) to try to eliminate the high speed wander, experiment with varying amounts of boost per gear to maximize acceleration, add multiple levels of traction/stability control (snow/ice, tour, sport, race) and more.