My HV Outrunner REVO

[MetalMan]

Originally Posted by sikeston34m

Very Nice BL-Power!

I've always wondered how the Kontronik ESC's would handle an outrunner in a setup like this. You sound very pleased with it.

Tires that don't Balloon like that? Hmmmmmm...........the HPI Phaltline tires are a GREAT high speed tire, but they don't grip real well off road. They do stick on-road like glue though. The smoothest tire I've ever drove on. I did a few 65mph passes with them. The best I've found for high speed runs so far.

I've heard the Badlands are a pretty good all around tire.

I agree with your statement on the HPI Phaltlines. They are great tires. However, HPI doesn't seem capable of gluing them to the wheels they come "mounted" on, so you should glue them yourself. When I got mine, I actually pulled the tires off of the wheels and taped them up to decrease ballooning.

[suicideneil]

Oh, I like that setup alot. Tell me, how difficult was it to get the motor hooked up in the correctplace? Looks like the shaft slid through the front bearing, then you marked the motor mount fastening positions on the existing plate, and fixed it in place Im guessing the input gear for 2nd is retained and just fixed to the motor shaft in the correct place; any chance of a sneak-peak inside the tranny if its not too much hassle?...

[lutach]

Originally Posted by MetalMan

I agree with your statement on the HPI Phaltlines. They are great tires. However, HPI doesn't seem capable of gluing them to the wheels they come "mounted" on, so you should glue them yourself. When I got mine, I actually pulled the tires off of the wheels and taped them up to decrease ballooning.

I used the Phatlines on a few speed runs I made.

[BL-Power]

Originally Posted by suicideneil

Oh, I like that setup alot. Tell me, how difficult was it to get the motor hooked up in the correctplace? Looks like the shaft slid through the front bearing, then you marked the motor mount fastening positions on the existing plate, and fixed it in place

Thats exactly how i did it. It wasn't difficult at all, it took around 10min to drill the holes.

Im guessing the input gear for 2nd is retained and just fixed to the motor shaft in the correct place; any chance of a sneak-peak inside the tranny if its not too much hassle?...

I am using a 18t Mod. 1 RC-Monster Pinion instead of the input gear for 2nd. It is working great.

Thanks for your recommendations! I'll look for some Phaltline Tires for onroad runs.

I'm glad you like it, i'll see if i can make a video today.

[lincpimp]

Originally Posted by suicideneil

Oh, I like that setup alot. Tell me, how difficult was it to get the motor hooked up in the correctplace? Looks like the shaft slid through the front bearing, then you marked the motor mount fastening positions on the existing plate, and fixed it in place Im guessing the input gear for 2nd is retained and just fixed to the motor shaft in the correct place; any chance of a sneak-peak inside the tranny if its not too much hassle?...

You can also convert the 18t input gear from the emaxx tranny to take a set screw and use it as a regular pinion. Some heat treating is necessay if you want to run on a hardened spur, though. I really like this idea, and may try it out in my racebomb. It has 1/8 diffs and sturdy driveshafts so it should hold up!

[Sammus]

Originally Posted by BL-Power

Thats exactly how i did it. It wasn't difficult at all, it took around 10min to drill the holes.



I am using a 18t Mod. 1 RC-Monster Pinion instead of the input gear for 2nd. It is working great.

Thanks for your recommendations! I'll look for some Phaltline Tires for onroad runs.

I'm glad you like it, i'll see if i can make a video today.

Howdy, could you elaborate a bit on how your actually driving the top shaft? is that like a custom shaft you have the motor, or did was original shaft on the motor long enough so you could just bolt it to the tranny?

Also, is that shaft supported on the other side of the transmission like a topshaft normally would be?

[BL-Power]

It's the original shaft of the motor, it's long enough to mount the pinion properly but it doesn't reach the bearing on the other side of the transmission.

[suicideneil]

Cool. Being a 5mm shaft should mean it will work fine without being supported at the tip, although I know Sike can make custom motor shafts that woud be long enough if it was ever an issue. With that motor mount though I doubt it will flex at all, very solid setup.

[sikeston34m]

I love this idea. I think BL-Power had a stroke of Genius when he did this single speed tranny conversion.

It doesn't have to reach the bearing on the far end. The motor shaft is some very hard stuff. Great IDEA!

[BL-Power]

Originally Posted by sikeston34m

I love this idea. I think BL-Power had a stroke of Genius when he did this single speed tranny conversion.

It doesn't have to reach the bearing on the far end. The motor shaft is some very hard stuff. Great IDEA!

Thanks, i'm glad you like it also.
It's really durable, i was at the skatepark today and after 30min of running und some huge jumps and everything ran as smooth as before.

[sikeston34m]

Hey BL,

I sent you a pm. Lincpimp and I are discussing some variations of this setup via email.

Is it ok if I post those discussions here in your thread?

[BL-Power]

You got a reply, of course it's ok!

[sikeston34m]

We are some long winded boogers. I just didn't want to feel like I was hi-jacking your thread. Thank you.

Here's some input.

Hey James,

Thinking about finishing my bombproof racebomb emaxx. I have the 1/8 hybrid diff cases with the hb buggy (43/13) gears. I will run an old emaxx tranny as that is what the chassis is designed for. Looking at bl-power's revo conversion and liking what he did. So I am wondering what outrunner you think would be good to use. I use the gmaxx single speed conversion so a new motor shaft would not be necessary. He used a 500kv motor on 8s. I have a kontronik esc that is capable of 40amps cont and 7s. And I have enough lipos to do 7s. A 450kv motor would give me about 40mph with that setup. Sould I give the turnigy outrunners a try, or do you have a more suitable suggestion. This maxx would be about as heavy as the new emaxx, and wilth the motor directly driving the tranny input gear would be reasonably well balanced too. Watcha think?

Lincpimp

[sikeston34m]

It's funny. We're both named James.

Here's my reply. Let me know your thoughts. How smooth does the Kontronik start this from a stand still?

Hi James,

BL-Power had a stroke of Genius when he put that Revo together like that. Building those custom 2 speed shafts the way I do is a Pain in the ASS. LOL

I just wonder how tough the single speed kit really is? He didn't talk about cogging on startup at all. I wonder if the Kontronik ESC is that much smoother in dealing with that little problem?

With my Direct to Tranny Conversion, it does and will cog sometimes when starting in 2nd. It's because of the LOW EMF pulses that are coming back to the ESC. Perhaps the Kontronik is capable of reading that lower level. I would like some more input on that from someone who has done some testing with it. I've heard alot of good things about the Kontronik line, but have never owned one myself.

I see what you're thinking and it's a great idea for an AWESOME setup. I know how to put together a combo like this that will BLOW the transmission quickly with the 2 speed setup. It's VERY powerful and only on 6S.

I don't have any experience with the Turnigy motors, so I'm only gonna talk about the motors that I know. Turnigy looks like a pretty good motor with a good price though. The only draw back that I see is, this setup puts alot of strain on the motor. On HV it tends to run hot. I like the motor with the turbine cooling fan attached.

By using the factory motor shaft, this opens up alot of possibilities.

Let's look at the Helicopter motors. Some of those will REALLY put out the Watts. You can also go with higher kv, since they are built tough and can take it.

I like the original Century 600, but they don't make those anymore. I have 2 of them, that I've managed to catch on Ebay. I'm working on a 6S conversion with one of those now. I just lucked out and picked up a full set of Ultramaxx metal transmission gears. The original 600's stator is a 3530 and is 715kv. It hauls ASS! I'll get some vids and do a posting when I have it completed.

Afterwards Century discontinued the 600, they came out with an even more powerful line of motors. The 600+ is one of them.

These aren't as cheap as the Turnigy, but most of the time, you get what you pay for. Look at each one of these motors. The two at the top are factory rated for 10S Lipo or more.
http://centuryheli.com/products/elec...?currentid=345

I have had a 600 +, I couldn't use it with my conversion because the motor shaft is a Press fit into the endbell. I couldn't get it out. But on an Electric Bicycle thingie I built, it hauled my butt to 28mph.

This is fine with the single speed conversion. To add some insurance to the motor staying together, I would weep in some Red or Green lock tight between the bearing holder and the stator, IF you can't see that it's full already. I would add a few drops of GREEN locktite to the press fit of the motor shaft and the endbell.

These motors are the Ultimate in my opinion.

With the 600 setup, I have seen some 60mph+ passes, but couldn't hardly control it because of the tire swelling. I want to try this on the Phaltline tires.

The two motors at the top of that page could power a speed record setup for the MT class. Your drivetrain must be VERY bullet proof though and you must use a light finger. LOL

There are other motors that will make powerful impressive setups. I'll be thinking about all the ones I've seen, and tell you about the best of them IMO.

James

[BL-Power]

When i go on the slowly on the throttle, the motor starts spinning but there isn't any cogging. I'll try to make video this evening or tomorrow that you can also see it. The Turnigy outrunner isn't running hot at all, after a 30min run, it has got around 125f. A setup with one of these Century outrunners and a bulletproof drivetrain sounds like a real killer setup, i think with the 800kv version on 10s and some Phaltlines you could easily reach 70mph.