Ofna DM-One Brushless Conversion (DM-1)

[ssspconcepts]

Originally Posted by dangerwr

Alrighty, the Kyosho Inferno GT body finally came in and I measured the wheelbase at just a hair above 13 inches. This tells me that the Inferno GT bodies will fit the DM-1 Spec just fine. Be sure to order GT bodies and not the longer (330mm?) GT2. I do not think any modification is required but will not know for sure since my DM-1 spec is on back order .

Thanks. Is the GT body made of the thicker/stronger lexan?

Originally Posted by ssspconcepts

Thanks. Is the GT body made of the thicker/stronger lexan?

Nah, made from the standard stuff. The body is flimsy in some spots and nice and rigid in others. I bet once the wheel wells are cut the whole thing will be a bit on the flimsy side. I wonder if it will buckle from the sheer speed of the brushless?

[ssspconcepts]

Originally Posted by dangerwr

Nah, made from the standard stuff. The body is flimsy in some spots and nice and rigid in others. I bet once the wheel wells are cut the whole thing will be a bit on the flimsy side. I wonder if it will buckle from the sheer speed of the brushless?

Well that is good to know. My stock PF8 body is flimsy but it seems to hold up fine during speed runs.

Originally Posted by ssspconcepts

Well that is good to know. My stock PF8 body is flimsy but it seems to hold up fine during speed runs.

The PROTOform bodies are .040" inch lexan. I do not have my calipers here at home but I can say that the Kyosho body is not made from anything thicker than what you normally would find. They are expensive too since they are licensed models from real manufacturers.

I think my DM-1 Spec is shipping out tomorrow . Did yours come as a kit or was it 80% assembled?

I have yet to hear of anyone running a 2-speed brushless on the DM-1. When I was building my Super RS4 (EP) I heard a few people talking about using the 2-speed from the Nitro version. What I gathered was that there was little need since the electric motor has a flat torque curve and would not benefit much from the 2-speed. I do not know personally but will be interesting to hear how yours works out with the 2-speed.

If you have the room I would think a 2-speed on a larger 1/7th scale would be fun. How do these things shift? Do they use some type of centrifugal clutch mechanism that switches out at a certain RPM?

[_paralyzed_]

Originally Posted by dangerwr

I have yet to hear of anyone running a 2-speed brushless on the DM-1. When I was building my Super RS4 (EP) I heard a few people talking about using the 2-speed from the Nitro version. What I gathered was that there was little need since the electric motor has a flat torque curve and would not benefit much from the 2-speed. I do not know personally but will be interesting to hear how yours works out with the 2-speed.

If you have the room I would think a 2-speed on a larger 1/7th scale would be fun. How do these things shift? Do they use some type of centrifugal clutch mechanism that switches out at a certain RPM?

exactly, a centrifugal clutch and a one way bearing. when the second speed hits and overrides the first, the first just spins freely because of the one way

[year1camaro]

Originally Posted by dangerwr

I have yet to hear of anyone running a 2-speed brushless on the DM-1. When I was building my Super RS4 (EP) I heard a few people talking about using the 2-speed from the Nitro version. What I gathered was that there was little need since the electric motor has a flat torque curve and would not benefit much from the 2-speed. I do not know personally but will be interesting to hear how yours works out with the 2-speed.

If you have the room I would think a 2-speed on a larger 1/7th scale would be fun. How do these things shift? Do they use some type of centrifugal clutch mechanism that switches out at a certain RPM?

The dude who started this post was using a 2 speed, but he din't reply as of yet. One certain benefit would be torque curve, if you could keep it hooked up.

[jhautz]

Still running the 2 speed in mine. Works great. RCMonster even makes a 2 speed pinion adapter now so you dont have to make your own like I did back then.

RCmonster Mike built an InfernoGT last fall and used the 2 speed also.


EDIT: In post number 85 in this thread there is a short video of the car running and you can hear it shift. The pitch of the motor and gears changes when it shifts. Its like a little turbo boost kicking in.