標題: Newbie Question about fast ESC / motor [打印本頁] 作者: FatboyHK 時間: 2010-8-8 02:16 標題: Newbie Question about fast ESC / motor Can I buy a good ESC / Motor, restrict the speed (using thottle hi point in my remote) to train my fingers and setup my car, then gradually increase the thottle hi point when my fingers are more capable and the car is properly set up?
I did it successfully with my Mini-Z, not sure if there is any difference in 1 / 10作者: ryancmlam 時間: 2010-8-8 12:32
As far as I know, the answer is yes作者: nel3838 時間: 2010-8-8 14:42
of course laaaa . . . . miniz , big z, the remote is the same . . .. 作者: FatboyHK 時間: 2010-8-9 02:20
so my current idea is to use a 2nd hand LRP Sphere TC and a 4.5t sensored brushless motor on my F104. I know it will be toooooooo fast if I use the ESC and motor at 100%. My plan is to set the throttle hipoint lower to slow down it to a manageable speed.
Is there any bad thing about this setup? will the throttle response be less linear? will the lifespan of the ESC / motor be affected?
Price is not a concern because the ESC and motor are 2nd hand.作者: hardmankam 時間: 2010-8-9 10:34 本帖最後由 hardmankam 於 2010-8-9 10:38 編輯
The torque/power between slower and faster motor is different. Higher turn motors (13.5 or 10.5) has less torque or acceleration out of a corner, while lower turn motors (5.5 or 4.5) is very powerful throughout the whole rpm range.
The top speed you can control using hi-point of your remote, but the power of the motor, you cannot.
back to your question: assuming with 7.4v with a f104, DO NOT use 4.5t. you will NEVER need that much power for a f104. i suggest at most a 8.5t/10.5t. (most people use 13.5 or 17.5)作者: FatboyHK 時間: 2010-8-9 10:49
can I use gear ratio to lower the torque? The top speed will be even higher but again I can reduce it using hipoint adjustment.作者: hardmankam 時間: 2010-8-9 11:04
You can use gearing to lower the torque, but it only affects just a little bit. The motor will get hotter because the motor need to work harder with a larger pinion.
Other than F104, are you going to play something else?作者: FatboyHK 時間: 2010-8-9 11:41
yes, i plan to buy a touring car soon. Now I see the issue, let me try, if really not ok I can just buy a weaker motor.
on the other hand, the ESC is also quite powerful. Can I still use it on F104?作者: hardmankam 時間: 2010-8-11 11:30
You will have a very hard time playing F1 with a 4.5T. For most 2WD/RWD cars, too much motor power will be extremely hard to control. A 4.5T motor is already very fast for touring cars.
if the esc fits in the chassis and under the body, you can use tc spec in a F1.
