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BrianG · 07.19.2006, 07:33 PM

IMO, I wouldn't run a 7XL on the Mamba. According to the Feigao chart, a 7XL will draw up to 95A, which is awful close to the Mamba's 100A rating. While it should work, I wouldn't be surprised if it heats up quite a bit. To allow a safety margin, I like to get an ESC that can handle ~20% more current than the motor will pull. This will help the FETs work less and allows for a little headroom if a motor actually pulls more current than advertised. An 8XL can draw up to 83A, which is right at 20%. This 20% margin is purely something I like to do and it has worked fine so far. I just thought I'd throw it out there...

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BrianG RC-Monster Admin Offline Posts: 14,609 Join Date: Nov 2005 Location: Des Moines, IA	07.19.2006, 07:33 PM IMO, I wouldn't run a 7XL on the Mamba. According to the Feigao chart, a 7XL will draw up to 95A, which is awful close to the Mamba's 100A rating. While it should work, I wouldn't be surprised if it heats up quite a bit. To allow a safety margin, I like to get an ESC that can handle ~20% more current than the motor will pull. This will help the FETs work less and allows for a little headroom if a motor actually pulls more current than advertised. An 8XL can draw up to 83A, which is right at 20%. This 20% margin is purely something I like to do and it has worked fine so far. I just thought I'd throw it out there...