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nitrostarter
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03.12.2010, 11:12 AM

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Originally Posted by MTguy View Post
But wouldn't the ballistic 13.5T put me at my mark of 30-35mph on 2s? Would I have good gearing options to keep cool?

Not sure if I want to move things around for the HV motors. Plus there out of stock..lol

It might get you there, but there is simply not enough motor mass to efficiently push the Slash 4X4. Its a heavier truck than the 2WD which would be more suited for the 13.5T.

In other words, the Slash 4X4 will be more demanding in the power area and will require a motor that can put out more Watts than a standard 540 size BL motor.

Trust us on this one... But if you insist on the 13.5T and want to try proving us wrong, have at it. We are suggesting a setup that will run more efficient, in other words cooler, and will have the power needed for 2s running while still being able to take a bit more voltage if you want to.


N. Rustler conversion

Last edited by nitrostarter; 03.12.2010 at 11:14 AM.
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550 vs 540
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NovakTwo
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550 vs 540 - 03.12.2010, 11:19 AM

Since the HV 550 motor has a stator and rotor magnet that are almost twice the length of a 540 motor, it will have twice the torque of an equivalent Kv 540 motor.

HV 4.5 550 (5000Kv)
Bal. 8.5 540 (5000Kv)

Therefore, if you are running two motors (one 540, one 550) with equivalent Kv in the same vehicle under equal driving conditions, the 550 motor will only have to work about half as hard and will heat up about half as much as the smaller motor.


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MTguy
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03.12.2010, 11:21 AM

LOL!!
Nope I will take what you tell me and go with it. Can you tell me what pinion to start with on the HV5.5T?
I will just return the Ballistic and wait for the HV5.5T or would it be best just to go with the HV4.5T? I guess I should just do it right the first time..
Thanks for your help..


Slash 4x4- MMP + HV 5.5T

Rustler- Ezrun 8.5T combo..
   
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NovakTwo
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03.12.2010, 11:22 AM

Quote:
Originally Posted by MTguy View Post
But wouldn't the ballistic 13.5T put me at my mark of 30-35mph on 2s? Would I have good gearing options to keep cool?

Not sure if I want to move things around for the HV motors. Plus there out of stock..lol
The HV 4.5 is available in our on-line store and at NitroHouse.

HV4.5 4WD Short Course 550-Size Brushless Motor -- 2S


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MTguy
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03.12.2010, 02:25 PM

Thanks again for all the help. I went ahead and ordered the HV5.5T from TB with some 32p 5mm pinions 15T,16T and 17T. Hope this works out..lol
I will be shipping the ballistic back when I get it..


Slash 4x4- MMP + HV 5.5T

Rustler- Ezrun 8.5T combo..
   
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skellyo
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03.12.2010, 03:55 PM

Quote:
Originally Posted by MTguy View Post
Thanks again for all the help. I went ahead and ordered the HV5.5T from TB with some 32p 5mm pinions 15T,16T and 17T. Hope this works out..lol
I will be shipping the ballistic back when I get it..
Ordered from TB? Who is that?
   
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MTguy
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03.12.2010, 04:47 PM

LOL.. sorry towerhobbies..


Slash 4x4- MMP + HV 5.5T

Rustler- Ezrun 8.5T combo..
   
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rootar
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03.12.2010, 10:29 PM

youll prolly want a smaller pinion i think in the 13-14 range for 30-35

15-17 should put you in the 35-40

either way it wont be no sweat for the motor and youll really like it.
   
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MTguy
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03.13.2010, 06:10 AM

There where out of the lower 5mm pinions so I will just have to work with the 15 till I can get some lower ones. Also will have to wait till the wrath of my wife settles when she finds out I have two motors coming..lol


Slash 4x4- MMP + HV 5.5T

Rustler- Ezrun 8.5T combo..
   
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phatmonk
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03.13.2010, 10:06 AM

Will the HV 4.5 550 Novak motor work with the MMM non sensored?


SC8-E RCM MMM CC 1717
Slash 4x4 MMP CC SC 2400
SC RC8BE MMP Neu Tekno 1512/2D
Mugen MBX6 Eco MMP Neu Tekno 1515/1.5D
   
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asheck
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03.13.2010, 10:09 AM

Quote:
Will the HV 4.5 550 Novak motor work with the MMM non sensored?
Yes, but it will not have very smooth startup.
   
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1maxdude
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03.13.2010, 05:59 PM

I think a good 9.5 or 8.5 might be just right. Kinda late giving my 2 cents, but I had a vector X-11 9.5 in a stampede, that kinda put it in the overpowering range on 2s. I think for a 4wd slash, something like that would probably fare pretty decent. As for heat, it was a non issue for me, but might with you. The HV might be a good choice too....
   
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lincpimp
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03.13.2010, 09:36 PM

The std novak motors are kinda small, like 380 internal size. Not much power, I tried the 13.5 on 3s with a MM in a pede and could not gear it low enough to run cool. Even a feigao 540 12s was better.

Stick with the hv novaks for a 4wd slash. The smaller motors are ok for youring cars and 10th 2wd buggies. Otherwise they do not have enough torque and also get very hot.
   
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slimthelineman
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03.14.2010, 02:03 PM

been running two of these setups one w/ 8th scale tires one without clubracing at local tracks with my friend. must say this motor is way better than the hv line. mostly because it has the same ~3mm shaft which maes it a drop in replacement. i ran a 12.5 in it before this on 3s and it was soft. 540 is too small for 4wsc. the trinity motor is the same 100 bucks as the slovak and has an internal fan. get about 7-8 minutes HARD track time on a 3200 3s 40c tp for med size tracks running the stock 13 pinion and spur in both setups. 8th scale tire truck with the slipper and the other is a platinum w/center diff. temps are about 150 on the motor and around 110 on the batt and esc. dont know how fas it goes but it runs down anything we have been on the track with so far. will say that the mmp is 50% of the trucks working so good. it really is an amazing controller with some interesting features... running sensored only mode w/ no cheat mode low timing auto lipo at 3.1 100% brake
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NovakTwo
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03.14.2010, 02:15 PM

We found that the standard size 3.17mm shaft did not hold up well in our 550s, so we retooled with the 5mm shaft/bearings. Now, the HVs hold up very well on 2S in the 4x4s.

Some motor companies have holes in the motor cans or internal fans because their motors run very hot. We prefer closed cans because debris inside the cans causes more problems.


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