When I was asked to review this product I was skeptical of the benefit. Why would I want to replace a perfectly good motor with another one? Well, here’s why. Have you ever wanted to buy a Carrera 1/24 race car and say, I would buy that if I could run it on my 1/32 power supply. Well now you can. RMS is offering a motor that is nearly a direct fit into the Carrera motor pod. I only say nearly because the Carrera motor screws don’t quite line up as seen in the photo below.
This is not a real problem. If you want it secured in the motor pod, a dab or two of hot glue would do the trick. Below are the stats for the motor. I know some will ask for it.
At Maximum Efficiency At Maximum Power Motor Characteristics
Speed 8863 RPM Torque 8.647 mNm No 10679 RPM Ec 1.195 V
Current 0.974 A Speed 5339 RPM Lo 0.195 A Alpha 32.21
Torque 2.729 W Current 2.485 A Ls 4.776 A V 4.5 V
Power 2.94 mNm Power 4.835 W Ts 17.29 mNm Kt 3.776 mNm/A
Efficiency 62.8 % Efficiency 43.23 % R 0.942 Ohms Km 3.89 mNm/Sqr(W)
{1[g-cm] = 0.098[mNï½¥m] 1[mNï½¥m] = 10.197[g-cm]}
Stall Torque of 17.29 mNm = 176.306 g/cm
MOTOR/VOLTS CARRERA
Standard
Motor CARRERA
TUNING
Motor RMS
1/24
Motor
3V 2380 3500 6900
6V 5550 7700 13600
9V 8800 11400 20400
12V 11800 15200 27900
15V 14900 18800 35000
18V 18042 24000 rated 38800
Depending on your taste the torque for this motor is either spot on or it could use a little more. I like it as it is since I typically get on the throttle a touch early coming out of the turns. I feel this can be remedied by using an 11T or 12T gear. The motors come without a pinion gear. The Slot.it 6.5 gear fit perfectly.
The car tested was a Carrera Corvette C6R. I did my testing at 14.8v volts using the MG Power supply. I know it’s not exactly apples to apples but your results should fall relatively in the same range. I ran 50 laps at 18v using the stock Carrera motor. My fastest time was an 8.374. I ran 100 with the RMS motor installed at 14.8v and the fastest time was 8.436. My feeling is this is about as close as you can get to an even match. Since I know some of you have variable power supplies, I ran it at 12v and it was very smooth an easy to drive. I actually preferred running at 12.5v.
In conclusion, if you have a track powered by 12v-15v and wide enough to handle the Carrera 1/24 cars; I would highly recommend giving this motor a try. It’s very smooth and quiet. I believe retail for this motor is $14.99. I’m sure Carlos will reply with his contact info for those of you wanting to buy his motors.
Thank you Carlos, for supplying the motor for this mini review.
