RCU Forums - View Single Post - Heng Long M41 “3:1” or “4:1” gearbox upgrade?
Old 05-15-2020 | 07:44 AM
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pcsguy88
 
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From: KC
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Originally Posted by Fsttanks
MFU = Multi Function Until (the receiver)
9.6v should not be an issue. If you are concerned then only go up to 8.4v which will provide a mid point in performance between 7.2 & 9.6.
380 motors unless the Tiger has room for the 390 motors which are a bit longer. I don't have a HL/Tiagen/Torro Tiger (all the same base tank) to give you a for sure answer.
Digging this thread up from the grave.

So you are telling me I could have just put a higher volt battery in our tanks all these years or is there a certain version where this begins? Most of mine were upgraded to 2.4 RX18 a few years back. Before then you had to install a fan just to keep the HL boards from smoking under the strain of metal tracks.

I have a Leo 2 with v2 4:1 390’s on an rx18 that I’d love to give more speed to without losing the low end grunt. The v2 3:1 380 is in my Abrams. Just toss in a 9.6v or 8.4v and my tank runs faster?