Hi guys,
It's interesting that I'm also relooking at gyros for car applications. Head lock gyros are not going to work in a car. One needs to use a rate gyro (i.e. soem reaction from gyro if there is some input from the gyro sensor). I used a cheap GWS PG-03 rate gyro but found that its setting drifts. Now, I am using a Futaba GY240 headlock gyro with headlock turned off. This is placed in my onroad mini.
What it does is to help the poor driver like me to steer/handle the car during cornering. Coming from offroad, I find that I tend to over steer the mini & that results in a spin out or fish tail action all the time. This makes the mini undriveable for me. With the gyro in, it helps to correct me over enthusisatic steering action & smooths out the oversteer. Bandaid for poor driving.
However, the gyro is not without its own set of problems. The biggest problem faced by in car application is vibration. Gyro is sensitive to that. So, sometimes, the sensors pickup the wrong data because of this vibration.
However, overall - it definitely helps.
Regards,
Joe Ling