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NEED HELP MONSTER TRUCK PROJECT - 5/9/2012 5:21 AM   
jhsmith87


 

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From: brookhaven, MS, USA
Status: offline 		i need some help with my project. if you can please help me.
i have a New bright h3 hummer and i want to upgrade it just a bit, i have a 2 channel reciever i am going to put in it and hobby servo. but i need to know more about its stock set up.
i would like to know about the stock motor, what size is it? whats the ratings on it kv, volts, amp ect.
i am going to put a hobby grade esc, batteries, reciever, and servo, and hopefully shocks.
but to know what esc to get i need to know what more about the motor.
also info on the gears would be helpful, like the pitch.
basicly i want it to go a bit faster, and once i get that done i will try to upgrade the shocks so it can really be a monster truck.
about the motor, should i upgrade the motor to a bigger one, if so what size? cause i dont know what size this one is, and should i change the gears, if so what pitch are they so i dont strip anything.

Any and all help is welcomed thanks for reading, and if you have any advice i would love to hear it


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RE: NEED HELP MONSTER TRUCK PROJECT - 5/9/2012 5:33 AM   
nitrosportsandrunner



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Status: offline 		if the motor is a 540 can, then you can probly upgrade it.

if its a 380 can, forget about it. Its not even worth upgrading the truck.

Im surprised how many of these BIG toy rc's have dinky little 380 motors put in them.

Anyway, almost and hobby ESC will be able to power the stock motor...no matter what size it is.

What battery does it use?

typically toy RC's have a pinion gear which is "pressed" onto the motor's shaft. If you are to install a new motor, you would have to get that pinion gear off and put it on the new motor. Not impossible, but not easy.
Most of these toy gearboxes have wide gears...which means they can usually take a more powerful motor and battery setup.

The steering servo and linkage setup is usually the tricky part. I have had 1 large toy rc that I simply couldnt get a standard steering servo to bolt in right. It usually requires a fair bit of modding.

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RE: NEED HELP MONSTER TRUCK PROJECT - 5/9/2012 9:42 AM   
Foxy



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Status: offline 		Would be cheaper and easier to get a basic hobby grade RC, but if you're determined, it can be done. Hope you're good with a dremel.

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RE: NEED HELP MONSTER TRUCK PROJECT - 5/9/2012 3:04 PM   
jhsmith87


 

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Status: offline 		i know its gonna be hard but thats why its a project... i have a hobby grade one. i didnt want to just completly redo this thing, more or less just put a better battery, esc and reciever in it.

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RE: NEED HELP MONSTER TRUCK PROJECT - 5/9/2012 3:50 PM   
Scottgir



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Status: offline 		A great place to upgrade 380 motors is from Banebots or you could go with a 1/18th scale brushless setup.

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RE: NEED HELP MONSTER TRUCK PROJECT - 5/9/2012 4:33 PM   
nitrosportsandrunner



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quote:

ORIGINAL: Scottgir

A great place to upgrade 380 motors is from Banebots or you could go with a 1/18th scale brushless setup.

i dont know if a toy grade will handle brushless...even if its a 1/18 BL system.

Again, if the truck uses a 540 can...you may have some options.

But most of the stuff from walmart has a 380...even the big ones.

I had a older Radio shack years ago which I upgraded with hobby grade gear. Basically doubled the speed. Worked well for awhile...till the plastic bushings in the wheel hubs began to wear out. Then the wheels had tons of play in them.

Is your goal to make the truck faster? Or is it just to give it proportional steering/throttle? If your goal is the latter, then it can be done and still have the truck last a good long time.

If you install a steering servo, ESC and radio and run the stock motor this will be the easiest route. Depending on what battery the truck uses, if you run a ESC with as high a voltage as the esc can handle (say a 9cell nimh) then you will probly still get more speed out of the stock motor.



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RE: NEED HELP MONSTER TRUCK PROJECT - 5/9/2012 4:55 PM   
phmaximus



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Status: offline 		No kidding even just replacing the speed controll with a hobby grade ESC can make huge differanced...

her is a hummer I had...


I replaced the servo (towerpro) & ESC (TEU-103BK) made is heaps faster... I mean heaps faster, only problem because of the new power it would torque steer and the steering links were to weak... I even fitted some oil filled long stroke shocks to the front.

Stuffing around out the back I slamed it into a vranda post... It riped the left wheel straight off complete with the suspension and 1/2 the diff housing

That was the end of that.... ive saved the body for a 1/6 project using a HPI MT2 chassis & electric conversion... one day, one day


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RE: NEED HELP MONSTER TRUCK PROJECT - 5/9/2012 4:58 PM   
jhsmith87


 

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Status: offline 		yea my goal is not to make this in any way comparable to a hobby grade at all. just want to improve on it a little.
the truck's stock motor i can not find out anything about it, i've searched the web trying to find out more about it, with no luck. the only thing i can guess based on my search is its a 370 brushed motor. i only say this because the length of the can is 1.25 inches, the same as a 370.
the truck comes with a 9.6v nicad battery and im only going to go to nimh so i am guessing i will have to get a battery over 9.6v, such as 11.1 or a little less. i was just thinking about keeping same stock motor, or replacing it with a new one of the same size, since i dont know the pitch of the gears in order to put a pinion on the new motor.
stock the truck acts this way: you hit the throttle and the motor goes as fast as it will go, so an esc will allow me to go slower or faster, i would like to upgrade the gears like put not such a big gear on the spur or a bigger one on the pinion, but once again i dont have a clue what pitch they are,
i could change all three gears to what ever pitch i wanted i guess, but i dont know where to find the gears that i would need, for esample the gear that slides over the axel, and the one between the axle and the pinion.

in a nut shell just tryin to add a small amount of power with ability to control motor speed, along with the radio range.
so reciever, servo, & esc (30a?) nimh battery what would be best as far as strongest without overpowering the motor?

and where could i find gears if i wanted to upgrade gears that would fit inplace of the stock one? or with little modding? such as maybe a rod to hold the upgraded gears in place?

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RE: NEED HELP MONSTER TRUCK PROJECT - 5/9/2012 5:15 PM   
jhsmith87


 

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quote:

ORIGINAL: phmaximus

No kidding even just replacing the speed controll with a hobby grade ESC can make huge differanced...

her is a hummer I had...


I replaced the servo (towerpro) & ESC (TEU-103BK) made is heaps faster... I mean heaps faster, only problem because of the new power it would torque steer and the steering links were to weak... I even fitted some oil filled long stroke shocks to the front.

Stuffing around out the back I slamed it into a vranda post... It riped the left wheel straight off complete with the suspension and 1/2 the diff housing

That was the end of that.... ive saved the body for a 1/6 project using a HPI MT2 chassis & electric conversion... one day, one day


see thats almost excatly what i want to do to mine just get it a little faster.. so you put a esc, and new servo, did you put a different reciver? also what kind of battery was you using? mine is stock 9.6v nicad.
and what amp was the esc.
what you did to yours there is basicly what i want to do to mine. shouldnt be to hard

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RE: NEED HELP MONSTER TRUCK PROJECT - 5/9/2012 6:08 PM   
nitrosportsandrunner



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Status: offline 		If you use a hobby grade 9.6v battery it will provide much more power than the stock nicad 9.6v battery.

Yes, the voltage is the same but the amperage (punch) of those stock nicad's is a joke. Id bet even a hobby grade 7.2v 5000mah nimh pack will provide the same speed as the stock 9.6v nicad.

The ESC he used is a most basic tamiya ESC. Just about ANY hobby grade brushed ESC can handle a 27t 540 motor. Such a motor will draw more amps than any 370-380 motor thats found in a toy RC.
I actually have a tamiya TEU-104 ESC from a kit that im not using...if you want it PM me.

To phmaximus:
Thats and awsome video. Its alot of fun to modify toy RC's (even it they do break in the end) and even more fun when doing so gets a smile out of the kids!

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RE: NEED HELP MONSTER TRUCK PROJECT - 5/9/2012 6:19 PM   
FahrtAutoRC



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Status: offline 		I wouldn't recommend getting too wrapped up in it for the simplefact that once it breaks, it can not likely be repaired. Foxy has the right idea of just grabbing up a cheap hobby-grade. I myself just discovered I have evrything short of a radio system for another whole RC, thinking about a cheap Tamiya  

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RE: NEED HELP MONSTER TRUCK PROJECT - 5/9/2012 8:11 PM   
jhsmith87


 

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Status: offline 		i think if i get an esc thats could handle a 11.1v nimh battery, and put that battery, esc, and reciever in i should see a huge differance even with the stock motor witch i think is a 370. only question is what amp esc should i get i am thinking a 30a would be fine?

and does any one have any idea what the specs on this motor is? or what the pitch of the gears are? i seen a thread on here where some on did this project but went way over the top on mods, so i know its been done before, i would just like some more info.

i know its prolly not worth it in the long run, i know it'd be cheaper and easier to get a hobby grade one. but as i said in the first post this is a project and is just for fun, so all that doesnt really matter to me, i am just having fun with the project.

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RE: NEED HELP MONSTER TRUCK PROJECT - 5/9/2012 9:34 PM   
jhsmith87


 

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Status: offline 		phmaximus i would like to know what kind of esc and batteries your runnig in yours, cause what you've done is excatly what i want to do

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RE: NEED HELP MONSTER TRUCK PROJECT - 5/10/2012 12:08 AM   
phmaximus



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Status: offline 		The hummer i had was a Twin motor setup, I Used a Tamiya ESC TEU-103BK, on a 7.2v 3300mah venom battery.

Keep in mind u dont allways need higher voltage to go faster, it all depends on what the stock speed controll ran at...

Easy way to test is there will be a speed increase with a ESC alone, is to bake the wires from the batteries plug and conect then straight to the motor...

BUt it was a goodlittle project, just a shame it couldent be fixed


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RE: NEED HELP MONSTER TRUCK PROJECT - 5/10/2012 3:26 PM   
jhsmith87


 

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Status: offline 		i noticed today that when i hooked up a 7.2v 15c battey directly to the motor, and it spun alot faster than it did with stock battery through the circut board or the same lipo hooked up to the circut board, so i guess the circut board some how pulls away a little power from the battery that could increase the power to the motor

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RE: NEED HELP MONSTER TRUCK PROJECT - 5/10/2012 9:10 PM   
BKoz559



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Status: offline 		Can you upload a photo of the truck so we can see the layout of the chassis and suspension?  Also, is the body easy to remove or is it an integral part of the frame?  How big is the truck?  I found a few different New Bright Hummers online, including this 1/6 scale variant: http://www.rcmania.com/new-bright-hummer-h3-1_6/

The body from that truck would look cool mounted on top of a Traxxas Summit.

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RE: NEED HELP MONSTER TRUCK PROJECT - 5/11/2012 12:00 AM   
phmaximus



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quote:

ORIGINAL: jhsmith87

i noticed today that when i hooked up a 7.2v 15c battey directly to the motor, and it spun alot faster than it did with stock battery through the circut board or the same lipo hooked up to the circut board, so i guess the circut board some how pulls away a little power from the battery that could increase the power to the motor


Now thats what i was saying, most toy rc's are speed limited... so that means a ESC will make it that much fastser


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RE: NEED HELP MONSTER TRUCK PROJECT - 5/11/2012 1:05 AM   
SyCo_VeNoM



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quote:

ORIGINAL: phmaximus


quote:

ORIGINAL: jhsmith87

i noticed today that when i hooked up a 7.2v 15c battey directly to the motor, and it spun alot faster than it did with stock battery through the circut board or the same lipo hooked up to the circut board, so i guess the circut board some how pulls away a little power from the battery that could increase the power to the motor


Now thats what i was saying, most toy rc's are speed limited... so that means a ESC will make it that much fastser

not only speed limited more like they limit it so the electronics don't fry without having heat sinks, and being generally enclosed. I can't think of one toy grade I've ripped apart when I was younger(I've dismantled well over 15-20) that had the FETs on a decent heatsink

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RE: NEED HELP MONSTER TRUCK PROJECT - 5/11/2012 1:48 AM   
jhsmith87


 

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i cant upload pics sorry...
but basicly put esc and 9 or no higher than 11.1v nimh battery and i will get the speed im looking for?



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RE: NEED HELP MONSTER TRUCK PROJECT - 5/11/2012 1:49 AM   
SyCo_VeNoM



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Status: offline 		just try a 7.2v stick pack...
11volts will fry most ESC's and motors that I know of

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RE: NEED HELP MONSTER TRUCK PROJECT - 5/11/2012 1:53 AM   
jhsmith87


 

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Status: offline 		i dont think so i know for sure my esc on my erevo vxl will do 11.1v so getting an esc to handle that shouldnt be a problem, it may fry the motor though

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RE: NEED HELP MONSTER TRUCK PROJECT - 5/11/2012 2:42 AM   
SyCo_VeNoM



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quote:

ORIGINAL: jhsmith87

i dont think so i know for sure my esc on my erevo vxl will do 11.1v so getting an esc to handle that shouldnt be a problem, it may fry the motor though

that is brushless...
brushed is another deal...
unless you are going to fling a BL motor with a BL ESC in it you are not going to find a brushed ESC that will handle that voltage easy

BTW the traxxas brushed XL-5 is 8.4v's (or was it 9.6?) a 3s will fry it extremely quick which is the closest comparison to your VXL...

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RE: NEED HELP MONSTER TRUCK PROJECT - 5/11/2012 2:55 AM   
The_Shark



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Status: offline 		Do i know you??? you remember the T-Maxx monster truck I was driving on the sidewalls?

anywho, don't bother with a new bright, put in a garage sale and sell it.

to start i would get a ECX Ruckus, its a 1/10 scale 2wd monster truck simmilar to Traxxas stampede, only instead of it being a complete utter rip off, its only $120 RTR. its a nice looking truck with good ground clearance.

then buy yourself a hobby partz lipo charger and 2s battery for maybe $55 and that will boost up the speed quite a bit, then later upgrade to brushless.

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RE: NEED HELP MONSTER TRUCK PROJECT - 5/11/2012 7:34 PM   
jhsmith87


 

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Status: offline 		no i dont think you know me.. i live in mississippi..
i do not want a whole new truck, i have one, i am just modding this one a bit.

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RE: NEED HELP MONSTER TRUCK PROJECT - 5/11/2012 8:41 PM   
The_Shark



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quote:

ORIGINAL: jhsmith87

no i dont think you know me.. i live in mississippi..
i do not want a whole new truck, i have one, i am just modding this one a bit.


ok, someone came up to me the other day and said they had a hummer r/c

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