(quote) I don't think so. The early silver 4 vent can was manufactured by Mabuchi and did have a slightly softer brush. The newer 2 vent can you see as OEM on the currently released Tamiya kits is manufactured by Johnson. Both of these motors are 27T, 0' timing.


Hi madjack
Interesting , i have 2 x early 4 slot silver can 540 motors both of these motors have Johson engraved / branded on them
i ran one in a club meeting this weekend that runs under TCS Rules and was Actually Scrutinized by the marshals and cleared as they
inspected the motor they to could see the brand name "Johnson ".on the shaft end of the can .

so did Mabuchi make them on behalf of Johnson ??

BTW i Did not feel any benefit from the older 4 slot motor over the newer 2 slot motor , however I only run in general club meets and not full on Competition events ( i wish i was that good )


but hey its only my 2 cents worth