View Full Version : Motor for the XXX4. Which one?
turbo900rr
12-29-2005, 12:37 AM
Ok I just put up a post reguarding a controller for the xxx4 that will fit. I WAS planning on running the lehner basic 5300. But Ive read a lot of other posts with guys running 380 size motors and keeping up with the brushed motors. this site have a lot of guys who are into brushless thats why I came here. I want to be able to keep up with a good 12x2 mod motor.Any other ideas would be helpful. Thank you.
kufman
12-29-2005, 12:59 AM
In my expierence, the lehner 4200 will keep up with a 12 turn if geared correctly. Mine has kept up with 10t motors in sedan racing.
___rollin___
12-29-2005, 01:10 AM
I think the 5300 will be a bit overkill for any type of racing I bet. I think the 4200 will be a better choice.
Rtsbasic
12-29-2005, 06:46 AM
The 5300 would work fine..and be faster than most brushed motors (outrun a 12 wind for sure), but if your running on a medium/small track or you tend to hit things a lot go for the 4200.
The Feigao 380C's are also a good option, a 7t one of them is like a 5300, and a 9t one is like a 4200, they're dirt cheap as well.
SpEEdyBL
12-29-2005, 06:14 PM
I have the 380c 9t in my xxx4 and on 6 cells, it's equal to a 12 turn brushed motor. You can also gear this motor pretty high when running only 6 cells. The 380c 7t is more like a 9-10 turn. You might want to go with the 380c 8t. Starluckrc has them I think.
turbo900rr
12-30-2005, 09:45 PM
With smaller 380c 7thru9 turn motors what size controller can I run? I saw in a post here a few days ago someone was running a 380 motor with a 25 amp mamba in a b4. I know the xxx4 is heavier maybe I can get away with a 35 amp controller? Thanks for all the replies.
SpEEdyBL
12-31-2005, 04:43 PM
I would say a 60 amp controller would be able to handle all three motors. The mamba25 is somewhat underrated, so other 25 amp controllers might not be able to handle the 380c 9t.
Rtsbasic
01-01-2006, 09:32 AM
I think its www.hobbypeople.net that stock the Mtroniks Genesis Sport Plus controller, this is a 60 burst, 40 amp constant controller thats a bit lighter than the Pro, and a bit cheaper ($130).
An ideal setup would be the 9t on 3s lipo with that controller, or another in the Mtroniks range. If your limited to 6 NIMH the 8t wouldn't overstress the controller but would give good speed.