Just to keep anyone interested up to date. If you are thinking of doing a Muggy (or similarly heavy truck with heavy, large tires) with a MM esc, there are a couple of things to keep in mind. Apparently, the Muggy in its stock attire is too much for the little MM on 4S to handle.

Today, I got all of the vehicles that I converted and started playing musical chairs with all of the components. I swapped motors and escs among all of them and found a couple of things. What lead me to this is an email that I got from Joe Ford. He suggested that I do what I did and suggested that, if all of the setups exhibited the same behavior, it was an off the line current draw problem.

When geared 14/46 with the stock 40 series tires, the Muggy cogged no matter what esc and motor I had in it. At 12/46 it began to run about like I wanted it to with the 8XL. At 10/46 it was acceptable with the 7XL. At 10/46 with the 8XL it was as smooth as silk, but the top end really suffered. If I had to guess, I was getting about 30 mph. Hardly nitro stomping material.

Although I emailed Castle with my results, I'm not going to hold my breathe waiting for a response. Phone calls aren't getting returned and emails take days to exchange.

At this point, I have to take a guess and say that the Mamba Max has a really hard time getting a 13lb vehicle with tires of that diameter and weight moving. I'm picking up some Maxx size wheels and Crimefighter MTRs tomorrow. Hopefully the reduced diameter and (more importantly) reduced weight of the tires will allow me to gear the Muggy for performance similar to that of my buggy on the track.

Unfortunately, before I did all of the swapping, I assumed that something was wrong with the MM and I was going to have to send it in. I ordered another to use while mine was being repaired. Now I have a MM that I have no need for, especially knowing what I now know. I could have put that money on a Quark. OK, now I'm just whining.

GD,

If you see this, did you ever try 100% punch control with your MM esc and the Neu motors? If so, what effect did that have on the cogging? Do you notice that your 1512 in the buggy cogs less than the 1515 in the truggy? Have you tried undergearing just to see what effect this has on cogging?

I was really wanting to get a new motor and considering the difficulty of getting a Lehner, I was going to go ahead and get the Neu for the truggy. I was thinking the 1700kv 1515. Now I don't know. I'm all over the place with indecision. My wife's about to kill me, because I told her that going to electric was going to SAVE money. LOL.