Ofna DM-One Brushless Conversion (DM-1) - Page 3 - RC-Monster Forums

jhautz · 10.24.2007, 10:56 PM

Quote:

Originally Posted by zeropointbug

I am curious, do Lehners not mind the higher rpm's like the Neu's? Or do they up a bit when hitting the redline?

From my experience they are boyh top notch motors with little to no heat problems. I run a 1940\7 2239kv motor on 5s in my Savage all day with no issues.

phildogg · 10.25.2007, 01:35 PM

the car looks great.. would like to see it run..
phil

What's_nitro? · 07:15 PM

Quote:

Originally Posted by zeropointbug

I am curious, do Lehners not mind the higher rpm's like the Neu's? Or do they up a bit when hitting the redline?

I try to keep them at or less than 40K. That seems to be the point where they'll start to become excessively hot during runs. Like my XL 2800 on 4s (42K unloaded) got really hot after about 10 minutes of sprinting. The larger cans may be able to run faster, longer because they can dissipate more heat. Plus, the Lehner motors a rated with a load. Unfortunately, they don't specify what that load is.

jhautz · **Video -** 10.31.2007, 09:41 AM

Well its done. I ran it on Sunday for a test run and got a short video.

When I get a chance in the next couple days I'll post up some proper pictures of the finished car and final conversion details, but for now here is a short video of its maiden run I complied and uploaded last night. I finished up the run by sliding sideways into the curb and cracking the side body post.

This was a function of severe brake fade. They were hardly working by that point. The stock brakes are not going to cut it. I ordered a set of phenolic disks for the Jammin buggy. Should be drop in replacments and will hopefully reduce the fade. I'm going to double them up. The stock setup has only one disk.

The body on the car in the video is borrowed from another guy that has a DM-1. My body wasnt painted yet and without a body it had no traction what so ever and was almost impossible to keep going straight. Its amazing how much the body matters for on road. Other than the brakes it ran great no issues with the rest of the systems. I didnt really have much room to open it up where I was testing it. I was hardly getting past 1/2 throttle. I seemed to handle pretty well, but I'm really looking forward to Friday night and our regular parking lot oval race and getting it out to give it a good test run, check heats after exended hard run times. Just hoping for good weather on Friday. I'll try and get some better vid then too.

lutach · 10.31.2007, 10:05 AM

Quote:

Originally Posted by jhautz

Well its done. I ran it on Sunday for a test run and got a short video.

When I get a chance in the next couple days I'll post up some proper pictures of the finished car and final conversion details, but for now here is a short video of its maiden run I complied and uploaded last night. I finished up the run by sliding sideways into the curb and cracking the side body post.

This was a function of severe brake fade. They were hardly working by that point. The stock brakes are not going to cut it. I ordered a set of phenolic disks for the Jammin buggy. Should be drop in replacments and will hopefully reduce the fade. I'm going to double them up. The stock setup has only one disk.

The body on the car in the video is borrowed from another guy that has a DM-1. My body wasnt painted yet and without a body it had no traction what so ever and was almost impossible to keep going straight. Its amazing how much the body matters for on road. Other than the brakes it ran great no issues with the rest of the systems. I didnt really have much room to open it up where I was testing it. I was hardly getting past 1/2 throttle. I seemed to handle pretty well, but I'm really looking forward to Friday night and our regular parking lot oval race and getting it out to give it a good test run, check heats after exended hard run times. Just hoping for good weather on Friday. I'll try and get some better vid then too.

I really thought you had it with the nitro engine at the beginning of the movie LOL. Very nice.

lutach · 10.31.2007, 10:07 AM

I'm browsing through your pictures and I noticed you have an adapter plate on your Lehner. Did you make that?

jhautz · 10.31.2007, 10:13 AM

Mike makes them. Great for keeping the holes on the motor intact. I recomend one for every Lehner.

snellemin · 10.31.2007, 10:38 AM

Nice vid man.

lutach · 10.31.2007, 10:43 AM

Quote:

Originally Posted by jhautz

Mike makes them. Great for keeping the holes on the motor intact. I recomend one for every Lehner.

Do you think he might have one that fits the 22 series that converts the 30mm to 25mm?

jhautz · 11:09 AM

Quote:

Originally Posted by lutach

Do you think he might have one that fits the 22 series that converts the 30mm to 25mm?

Don't know if he has one... But I'm sure it would be easy for him to make.

supralover72 · 10.31.2007, 03:33 PM

Wow, that's awesome! It's amazing to see something that big do donuts like a 10th scale.

Great work.

Serum · 10.31.2007, 03:46 PM

That's it! show that screamer who's boss Jeff... Nice work..!

jhautz · 10.31.2007, 04:17 PM

Thanks guys.

Its straight line fast for sure, but I will find out if it handels worth a turd on Friday. Really looking forward to it.

Dafni · 10.31.2007, 04:48 PM

Quote:

Originally Posted by lutach

Do you think he might have one that fits the 22 series that converts the 30mm to 25mm?

He has something exactly like that. I know for sure.

squeeforever · 10.31.2007, 05:51 PM

Quote:

Originally Posted by Dafni

He has something exactly like that. I know for sure.

Thats good news because I was thinking of getting one of the KB45 motors. Anyone know if the endbells or pressed or not? I might see about getting Mike to make a heatsink/clamp for one...