First: we have an average setup 4wd 1/8th scale truggy. The battery is fully charged at 16.8 volts. It would be reasionable to say that the average run time for a 4S 6000 mah pack in this class is probably about 10 minutes. Dividing the capacity (6000 mah) over 1/6th of an hour (10 minutes) you can ascertain that the average amp draw is somewhere around 36 amps. Now we’ll take the voltage of a fully charged pack and multiply it by the average amp draw to find the power going through the plug. 16.8(v) X 36(a) = 605 watts.
Now we’ll take a 2wd buggy say with a 17.5 motor and a 2S pack at 8.4 volts. The average run time on a 6000 mah pack in this vehicle is probably somewhere around 20 minutes. Doing the math we get 8.4(v) X 18(a) = 151 watts.
That’s less than 1/4th of the power being drawn through the 4wd truggy! A dramatic difference, yet some racers will still use the same plug for both vehicles! You must consider the application of intended use in order to choose the right plug!
In ALL 1/8th scale applications, I strongly urge you to use an EC5 plug or other round tube 5mm or larger connector. I like the EC5 plugs as they are polarized to prevent shorting out the speed control.