On-Board Speed Run Video from my Slash/Rally based 3S powered GT8 car.
These were Shake-Out runs GPS clocked at 52 mph, but this car has been clocked in the mid 60s (so far…)
Are rubber tires available? I think you’d get a lot better control. I had the same problem with foam on pavement when I was trying this sort of thing back in my RC12L days. I don’t think rubber was available for that back then.
That Associated RC12L eventually had 9 NiCd cells and barely more than a 2:1 final drive ratio from a 12x3 540-class brushed motor with 4.9 mm “wet magnets”, all under a Porsche 962 GTP shell. Those cells were rated for something like 1700 MaH, and lasted less than a minute in that configuration. (A typical 4-cell 1/12th scale road course race was 8 minutes.) Being 2WD, I had to add a wing over the rear end to get all the power down, and even then I had to get up enough speed to get the wing working before I could really squeeze the trigger. I still had to roll on very gradually, because it was like driving on ice. I dialed the steering response down almost as far as it would go on the Futaba Magnum Junior I was using. One piece of gravel at speed and it became an untethered kite. Good fun. The braking side of that big Novak ESC stopped working sometime after I started using so many cells, so that added to the fun. Unfortunately, those were in the days before tiny consumer-grade GPS, and long before I ever spent money on any kind of camera, much less a video camera. Visual estimates from bystanders claimed I was somewhere between 50-60 mph. Back then, the “insane speed runs” on the big oval at Lake Whippoorwill were getting something approaching 80 mph with custom built chassis and rubber tires that were having trouble staying together.
RC12L: http://www.rc-car-museum.de/1_12_Modelle_aus_aller_Welt/USA_-_Associated/Asso_RC_12_L/Chassis.jpg
Thanks! Awesome info!
Excellent work friend!