I have three or four of those motors. I use a cut-down X427 with them on the 15" H&M shovelnose hydros to keep temperatures within limits.
Miss Geico 17 Brushless/Flex Drive Conversion
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I don't know if you guys remember Radek, but he built a small cat like this maybe 7 or 8 years ago. We started off with in runners in the 3000 range and used 2 and 3s lipos. Then some started using out runners and this became popular because it could spin a bigger prop. Then the problems of torque roll started happening. We found with a narrow cat it would roll on it's side if you went to like a 632 or 435 prop. I don't remember what kv was being used so that's why I asked what was going on now. I will see how my set up runs with a 427 prop and if it looks like it can take more, I will get the bigger motor. I got the boat for free so don't mind messing with some different set ups. Curious what speeds some of you are getting with this hull. I know we had a hell of a time trying to get one on radar. Are there some small gps units that will fit this size boat?Comment
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I don't know if you guys remember Radek, but he built a small cat like this maybe 7 or 8 years ago. We started off with in runners in the 3000 range and used 2 and 3s lipos. Then some started using out runners and this became popular because it could spin a bigger prop. Then the problems of torque roll started happening. We found with a narrow cat it would roll on it's side if you went to like a 632 or 435 prop. I don't remember what kv was being used so that's why I asked what was going on now. I will see how my set up runs with a 427 prop and if it looks like it can take more, I will get the bigger motor. I got the boat for free so don't mind messing with some different set ups. Curious what speeds some of you are getting with this hull. I know we had a hell of a time trying to get one on radar. Are there some small gps units that will fit this size boat?A nation of sheep breeds a government of wolvesComment
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The best choice you can do :
The cheap green motor is very small IMHO, look at GARTT : https://www.ebay.com/itm/GARTT-3700K...UAAOSw~PJbcq9uLast edited by Alfa Spirit; 07-27-2019, 12:12 AM.Comment
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I finished converting mine over to brushless. Here is a couple of pics of the finished boat. Nothing to crazy and I wanted to thank those that helped with my questions. I haven't run it yet but hope to in the next week or so.Attached FilesComment
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Looks great man! Love the minis, I'm addicted to running tight ovals with my mini rigger. Let us know how the Geico runs.Comment
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I got it running and it runs decent. Finding the right prop is what I need now. It's fast with a 632 but torques the boat a little more than I like. My 427 cavitates to much so I will try some bending on the prop to get it to bite. The 4400 kv motor I'm using is probable better suited to a rigger so I may switch to a 3000 to 3500 kv motor.Comment
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