RC-Monster Forums - View Single Post - MGM controller do I go for amperage or cell count??

Patrick · 08:51 AM

I think the 1515 1y would be a bit much on 7 and 8s, unless that's what your going for. I have the 1515 2.5d on 5s lipo in my e-maxx and it has a fair bit of power. It doesn't rev that high, but it has a lot of torque and I can vary the gearing a fair bit with out needing to worry about temps. This is it if you haven't seen it http://www.youtube.com/watch?v=ZMZeTJFA2f4 I don't know how much it weights, but it isn't exactly light.
Anyway I guess 6s A123 would be similar or slightly higher power (I don't have any experience with the A123's), so 7 and 8s would be crazy power. The 1y should be similar power on 4s lipo as the 2.5d on 5s lipo I think. So using the 1y on 8s A123 would VERY fast and probably pretty hard on the batteries, temps might be an issue as well.
If it was me I'd probably get the 2.5d for 6s and occasional 7 and 8s, but if your using 7 or 8s for most of your normal bashing I'd look at the 1.5y as well (1500kv), since you have heavy car. The 3d (1360kv) would be a lot of power as well on the higher voltages, but it depends on what you expect from it from your car I guess.

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Patrick RC-Monster Aluminum Offline Posts: 862 Join Date: Dec 2006 Location: Perth, Western Australia	09.11.2007, 08:47 AM I think the 1515 1y would be a bit much on 7 and 8s, unless that's what your going for. I have the 1515 2.5d on 5s lipo in my e-maxx and it has a fair bit of power. It doesn't rev that high, but it has a lot of torque and I can vary the gearing a fair bit with out needing to worry about temps. This is it if you haven't seen it http://www.youtube.com/watch?v=ZMZeTJFA2f4 I don't know how much it weights, but it isn't exactly light. Anyway I guess 6s A123 would be similar or slightly higher power (I don't have any experience with the A123's), so 7 and 8s would be crazy power. The 1y should be similar power on 4s lipo as the 2.5d on 5s lipo I think. So using the 1y on 8s A123 would VERY fast and probably pretty hard on the batteries, temps might be an issue as well. If it was me I'd probably get the 2.5d for 6s and occasional 7 and 8s, but if your using 7 or 8s for most of your normal bashing I'd look at the 1.5y as well (1500kv), since you have heavy car. The 3d (1360kv) would be a lot of power as well on the higher voltages, but it depends on what you expect from it from your car I guess. Last edited by Patrick; 09.11.2007 at 08:51 AM.