Novak's Nitro to Brushless Conversion Kits
 

We have just released information about our upcoming 1/8th scale conversion kits. We will offer 9 individual kits and the list price will be $139.00--scheduled for a March ship date:

1/8th Nitro to Brushless Conversion Kits

We also released info about the new 5mm shaft rotor upgrade kit for the HV motors--to ship in February. Included is information about the upcoming Mod 1 pinion gears---some of the links aren't active, yet.

This should get some heads turning.

Any chance the HV systems will be available with the 5mm shaft from the factory instead of having to buy a new rotor?

Finally a 5mm shaft for the HV. I think someone else and I mentioning about this somewhere in a lost thread or post.

Much of the delay in releasing the 5mm shaft upgrade kit was getting a good supply of the end bells. We're going to reserve the parts we get in stock for the kits until we are confident of receiving consistent supplies.

We will release the upgraded motors in a couple of months---adding some additional motor winds Bob has been testing.

Sounds good. Lower Kv motors by any chance???

What wind motors do you suggest? We can offer whatever customers want---we wind all the motors here.

id like to see something in the 2200-2400kv range

my hv 4.5 is making the tires look like 6.5" plates on 4s in a xt8, but its geared 15/48

any plans for an updated esc? as for winds something around 2000kv for your current esc would be good(since you are limited to 4s).

As a customer before me stated. Something around 2400Kv. My 6.5 at 3100Kv was almost right for my 1/8 buggy. I had to gear down a bit (10 or 11/46) to keep it cool enough to make a 20 minute main without a controller thermal. I don't know the Kv rating of the 4.5, but that motor is not suitable for racing. A few of the guys around here tried them over the summer. Fast as all heck, but it thermals the controller quickly. I think the longest anyone lasted with the 4.5 was about 11-12 minutes on a cool day. So, the 4.5 is suitable for bashers. The 6.5 is very nearly suitable for racing. I think perhaps a 7.5 (or whatever you want to call it) at 2400Kv would be excellent for buggy's on 4s.

how is the hv 6.5 working in the conv.

since it has a lower kv it should run cool and provide good speed in a buggy



im just wondering , because i tried a 4.5 tonight because of the mm update in a xt8, and it seems like if i gear down as far as i can go it would be an ok motor, but its probably going to run hot temps. on the motor, the 6.5 may be better for a truck due to the added weight, and lower kv on the 6.5

great info, thanks


and the 4.5 is 4800kv from what i could find, i looked at my info in the calc. and it said 72k rpm and like 84 mph, no wonder it cogged a little bit with 15/48 gearing on a mm

? for NovakTwo........


what is the timing set at on the hv line of motors???
would like to continue testing this motor with my MM, once i gear it down to 11/48

The info on the new HV items will be released probably late Spring. Bob has been testing the esc prototype in his converted 1/8 test vehicles.

The Crawler Systems were a lot more popular for Christmas than we projected, so some of our releases have been delayed because of the increased demand. ROAR just approved the 17.5, 13.5 and 10.5 turn motors for stock racing, so those orders are increasing, too. We need to ship the Data loggers, the Mongoose 1/18 Systems and this whole Conversion release first.

So many projects, so little time.

I think a 2500kv motor would be good. This would allow higher motor speeds than the xl motors. That way lower gearing could be employed, making some extra low end torque.

sweet!!!! will i be able to send in a hvmaxx 4.5 system and upgrade to this when it makes it to market

I'll collect your comments and questions for Bob and Adnan (Novak's senior design engineer). I'm merely a conduit, an intermediary.

We offer the 540 motors in 11 winds, so adding a few more 550 winds shouldn't be a problem. The original HV systems were designed as drop-in replacements for the brush electronics in the E-Maxxes.

How things have changed in the last few years! When we released those systems, I don't think we had ever known anyone to use Lipo batteries.

im sure that it will be a good system once it gets done, i really liked my hvmaxx system

i think the lower winds are a great idea, alot of people like the "systems" that are tested and matched to specific applications

thanks for the update. can you let us know what the planned voltage is for the new hv system? I currently run 5s and plan on going to 6s but want to make sure your new esc will be able to handle that.

I love your motors for 10th scale but dont use your stuff in 8th scale basically because of the esc. Could never get it to run more then about 10minutes with out thermaling in my e-maxx.

The new HV esc will be max 6s lipos. After reading these, and ther, forums, I told the engineers that if we couldn't design a new 6 lipo controller to just forget it. Our existing HV products are way overdue for replacement.

thanks and I look forward to seeing the final product.

Great, this is a big step forward for electric. We have at least two compainies bringing out 6s sytems with motors. This will go a long way to bringing larger scale electric to the masses!

A sensored 6S system? I'm gonna like this...

This sounds very promising;

6S, 5mm shaft, wider range of KV.

Now the next step is to upgrade the rotor to a slightly larger diameter to increase the torque, to enable the use the full potential of 6S; i think that because of the smaller magnets, you will hit the limits of a motor sooner. (copper and iron losses)

everything sounds good. now as long as you guys can get it out on time you will have my $$$$.

Bob posted a response on a forum at RC Tech that I will repost here.

Bob Novak: I have not seen your RC Product Designs mount. Let me explain how ours works. The heat sink replaces the center sleeve on the HV motor. There are two screws that clamp the heatsink to the laminations of the motor. This heatsink is common to all the conversion kits. There is a car specific plate that screws to the the bottom of the heatsink with four screws. This assembly is then screwed or bolted (depending on the Buggie) with four screws or bolts thru existing holes in the chassis.

Mounting this assembly to the chassis gives superior heat dissipation compared to mounting the motor at the front. Clamping the heatsink directly to the motor laminations also gives superior heat dissipation over motors that cannot be mounted this way. This heatsink will fit on any of our motors. The fan is also very rugged. These conversions will most likely fit on the Truggies also, but I just have not had time to test them. That will be my next project.
Thanks for the comments.

Bob Novak

any idea on a price range yet?

List price is $139.00. Street price may be @ $90.00.

This all sounds great.

Do you expect the new HV products to be race grade like say your GTB line or more consumer grade like say your XBR line?

DM

They will probably be both, with a high end BL racing controller and a revamped 2-4s lipo HV-style controller---many users don't need anything more than 4s. We also sell quite a few Super Duty XR brush controllers for the E-Maxx size 1/10 scale trucks. The HV/Monster esc redesigns include several different products.

Then, there can be 1/8th scale electric (BL) racing....:wink:

Music to my ears...

DM

Why no kit for the Losi 8ight?

... so I can still have a revered setup! :)

j/k of course. Since center diff is mounted way toward the right, there is no room to have a pack on right side the chassis is my guess.

I will venture a guess that with Losi's flipped diff. installation was tight and required putting the pinion way out on the shaft, resulting in breakage. Room on the steering servo side is tight for a battery too.

@novaktwo/Bob Novak;

The only problem/challenge i think you are facing is with the more than 3/4S powered setups;

since you use the original nitro motormount, and the centerdiff is shifted off center away from it, you might have a problem with position the batteries on the opposite side. room can be tight bellow the body and on the chassis. If the batteries fit, the balance of the batteries/motor is lost. The fact that your motor is rather light (much lighter than a Neu 1512 or 1515) the balance of the setup will be worse.

With all respect, i love your conversion and the idea to simple replace the center part of the motor is awesome, but this balance and tight room with the larger setups needs some tinkering in my opinion.

Thanks for chiming in Bob.

We were originally planning a Losi8 kit. Apparently the.. battery box we had made was too large, or something. I forwarded your comments to Bob for comment.

Good inputs, Serum. I also sent your comments along to Bob.

sorry i didnt make myself clear enough but i was talking about the brushless system itself and not the conversion kit:tongue:

We will do the preliminary pricing for the upcoming products once the designs are finalized and all of the new components are sourced. Final pricing is determined prior to the formal press releases with projected ship dates. At this point, price projections are pretty useless. The prices of metals continue to escalate.

All thanks to China..

The prices of the mills and lathe's increased drastically here.. I think it would be a wise investment to buy tons and tons of metal..

I am anxious to see what Novak does to make the setups 6S capable, since the size of the rotors is playing part here, at a certain point the magnet is no longer capable of translating the electro magnetic force into rotation because of the copper and iron losses. Novak needs to think about a bigger rotor for their 6S setups.

I personally think you are delivering a large contribution to the world of brushless. Can you explain why you guys stick with sensored? it's not all about crawling, i mean a 6S setup would be a good reason/opportunity to loose the sensors and make the system breath pure and raw (yet cogging-less) power.