What is the top speed that can be reached using the suggested Motor/esc combo for the F1 car?
depends on which motor that you choose. Motor ratings go by Kilovolts (KV), so a higher rating will mean a more powerful motor. But again, a more powerful motor may destroy parts faster.
@brett_turnage what is a range? 10mph, 60mph? Sorry, I am new to this.
@Curtis_Penick It depends on the motor you use. If you buy an extremely powerful rc racing motor then it will fly 60+, but like I mentioned earlier, it may cause parts to break.
I clocked mine at 22mph using an iPhone app. I had still not reached the top end as it was still gaining speed when I ran out of room. And this was with a 2cell battery. A 3cell lipo would be much faster, but the parts would probably give out in short order.
@Larry_Fortna what app did you use?
@Thomas_Lum Let me know if you find anything slower or if you have anything in mind right now.
Curtis, it is called “Speedclock”
@Curtis_Penick you could try running a limiter. Something that will turn the power down and will not let the engine get to full song
ABS. But we have regularly run them racing with kids and friends on the three cars built here to sustained peaks in the 60-80 range (80kph being half throttle only on the 50c 3s cell current) reliably with the all ABS driveshaft and drive train holding up pretty well but don’t even think about trying to go fast without gyros and processors to smooth out the aforementioned sensitivity to road perturbations. You can go higher if you switch to a metal pinion gear. Trying to put more power through the plastic pinion starts to smoke it and it fails at the pinion to motor interface. After a while (5+ hours runtime) the next failure point with extended high speed use seems to be the interface between the driveshafts and the rear rims, as the driveshaft torque will eventually strip them round so they spin freely.(and thus have difficulty applying drive torque to forward motion) - ymmv on component life depending on the amount of acceleration vs constant speed driving. Partially worn rear rims can have their useable life extended by inserting thin plastic shims (sections of build raft are what I used) to retighten loose but not completely worn rear rims - once they are worn completely round it’s time to print new ones. I’ve been playing with the torque limits on my speed controller (Castle Mamba) to see which limits give sustained longevity but I do not have enough data to provide any information yet. There is a magic performance inflection point in this design somewhere between 20-30kph above where the aerodynamics starts to make it work much better and the car is more stable and controllable than slightly slower.
@Dragos_Ruiu Is that actual speeds that you clocked, or is that an estimate?
Thanks for the help guys! I got everything ordered and built!