Tadas Posted July 3 Share Posted July 3 About to replace original motor with Hobbywing 4990 1650kv. Started to think about gearing... What would you guys recommend? I did some calculations: So stock motor with 50/18 gearing should have the same speed as hobbywing with 54/14. Its a bit hard to understand motor power when we only have kv. If i gear them both to run at the same speed - hobbywing one should have way more power just by mechanical advantage? But can we know/calculate motors pure torqe? Quote Link to comment Share on other sites More sharing options...
Tadas Posted July 9 Share Posted July 9 Does anyone run their X Maxes with out gear covers? Any issues with that? Quote Link to comment Share on other sites More sharing options...
Maximusbiggus Posted July 17 Share Posted July 17 Hey guys, Looking for battery advice... I've decided to buy the Gens Ace D300 charger so will also buy their Lipos too... I can get the bashing series 4s 5000mah 60C for €50 each or 4s 6800mah 120C for €83 each. I'm considering buying 2 pairs of the 5000's which, in my mind, seems to be better value for money but I wonder if there is a reason to choose the larger capacity over the 5000. They're for a brand new, unmodified Xmaxx with standard tyres, not belted. Cheers guys. Quote Link to comment Share on other sites More sharing options...
Stormbringer Posted July 17 Share Posted July 17 the higher mah capacity will give a longer runtime also the higher c rating will give more punch and allow more power to be taken out the battery when accelerating your probably better of buying extra 5000mah bats as it will work out cheaper in long run 1 Quote Link to comment Share on other sites More sharing options...
Maximusbiggus Posted July 17 Share Posted July 17 Thanks for your reply. Should the 60C 5000mah pack enough punch? What kind of run time might I expect from that 5000mah? Quote Link to comment Share on other sites More sharing options...
Stormbringer Posted July 17 Share Posted July 17 no idea on runtime but 60c should give decent punch etc Quote Link to comment Share on other sites More sharing options...
Maximusbiggus Posted July 17 Share Posted July 17 Great, thank you. Quote Link to comment Share on other sites More sharing options...
wolfie1 Posted July 17 Share Posted July 17 I get about 30 mins on a 10000mah packs, so around half on a 5000mah, but you will get more depending how your driving Quote Link to comment Share on other sites More sharing options...
wolfie1 Posted July 17 Share Posted July 17 On 09/07/2024 at 20:19, Tadas said: Does anyone run their X Maxes with out gear covers? Any issues with that? I would worry about stones getting in there and cause damage Quote Link to comment Share on other sites More sharing options...
Maximusbiggus Posted July 17 Share Posted July 17 Is it normal for the Xmaxx to feel "notchy" when the power is off and you try roll it forward and back? Like it judders when I roll it. I was expecting it to be smooth and roll more freely... Quote Link to comment Share on other sites More sharing options...
wolfie1 Posted July 17 Share Posted July 17 (edited) Its the poles in the motor i think, perfectly normal Edited July 17 by wolfie1 1 Quote Link to comment Share on other sites More sharing options...
Tug Posted July 17 Share Posted July 17 3 hours ago, Maximusbiggus said: Is it normal for the Xmaxx to feel "notchy" when the power is off and you try roll it forward and back? Like it judders when I roll it. I was expecting it to be smooth and roll more freely... That's static torque, it's caused by the magnets in the motor being extremely strong. Perfectly normal. 1 Quote Link to comment Share on other sites More sharing options...
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