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jhautz · 07:23 PM

I am running a 1940/7 in my emaxx on a BK 12020 with alot of sucess. The Bk controller and the Lehner motor work really well together. I run it on 5s also with no motor heat issues. The gearing with standard maxx diffs is at 16/51 on 6.125" Mammoth ST 40 series tires and that is the tallest gearing I can run in grass without overheating the esc, but at this gearing it will runn all day. On pavement I could go higher but its already over 50pmh on pavement and around 47mph ingrass so that is plenty fast.

That 1940/7 is just about my favorite motor. It pulls really hard and has a ton of torque. Easilly lifts the front tires at 30mph. On 5s its a silly setup. I just got done tearing up another rear diff so I just installed the UE diffs and I'm now planning to run 20/51 on 5.7" tires. That calculates out to the same overall gear ratios and the old setup, but the tires are narower and lighter so it should be easier on the system.

All I can say is great motor. You are gonna love it. And if your up for some kicks, dont hesitate to throw 5s at it. It will take it all day long.

	(#10)
jhautz RC-Monster Mod Offline Posts: 4,217 Join Date: Apr 2006 Location: Chicago, IL	05.29.2007, 07:20 PM I am running a 1940/7 in my emaxx on a BK 12020 with alot of sucess. The Bk controller and the Lehner motor work really well together. I run it on 5s also with no motor heat issues. The gearing with standard maxx diffs is at 16/51 on 6.125" Mammoth ST 40 series tires and that is the tallest gearing I can run in grass without overheating the esc, but at this gearing it will runn all day. On pavement I could go higher but its already over 50pmh on pavement and around 47mph ingrass so that is plenty fast. That 1940/7 is just about my favorite motor. It pulls really hard and has a ton of torque. Easilly lifts the front tires at 30mph. On 5s its a silly setup. I just got done tearing up another rear diff so I just installed the UE diffs and I'm now planning to run 20/51 on 5.7" tires. That calculates out to the same overall gear ratios and the old setup, but the tires are narower and lighter so it should be easier on the system. All I can say is great motor. You are gonna love it. And if your up for some kicks, dont hesitate to throw 5s at it. It will take it all day long. I can't decide if its more fun to make it... or break it... Silent...But Deadly Last edited by jhautz; 05.29.2007 at 07:23 PM.