View Full Version : What drivetrain replacements do i need to go brushless?
05-02-2004, 03:19 PM
I am planning on going brushless within the next year or two. Which upgraded drivetrain things should I get, I need CVD's, will mip work? or do I have to get somthing like UE cvd's? What is a good option for differentials? I don't want to spend more than $200 right now. I'm only 15 and i cut lawns and babysit so money isn't easy for me.
05-02-2004, 04:11 PM
Just change to UE idlers, use stock everything else.
new e max
05-02-2004, 04:15 PM
if you can wait, see what happens with the new novak system. traxxas might team up with them again and throw it in to the new electric revo???
05-02-2004, 06:59 PM
ummm....what gives you this insite???;)
you will need at least idlers, Cvd's and posibly a diff beef up. i alos sugest you get a new sliper system.
05-02-2004, 07:20 PM
UE has everything 30% off i just found out, so I will buy their idelers and mabie their cvd's. What kind of slipper should I get? and what sort of upgrades should I get for my differential?
05-03-2004, 06:08 AM
i bought a c50 setup expecting to replace loads of drivetrain but all thats happened is:
diif cup screws....... dead alloy diff, w/3mm screws
alloy idlers. thats it
i hav the highest current limit and its doing all the wheelies and that. so its up to you.
05-03-2004, 08:21 AM
Its mostly in driving style. I have a freind who stuck his hacker system in a totaly stock maxx, aside from changing where his batteries where, Chopped the battery racks off, roated them 90degrees against the chassis. I think he got the Idea from Jang.
Was turning in avg laptimes 2-3MPH faster then the Nitro's, and never ever had a problem with drivetrain/transmission. The biggest enemy to the drivetrain, is sudden changes, IE< punching the throttle in the other direction from which it is currently going, such as driving it in revers,e and flooring it fowards. If your smooth, you can greatly increase your drivetrain's life.
05-03-2004, 04:02 PM
Tervuren, you are de man.
thats exactly the reason, so there you go:
05-03-2004, 07:49 PM
I just bought the UE Idlers, Does anyone know how long shipping will take? I live in Canada BC
05-03-2004, 08:53 PM
Definitely depends on your driving style. And which system you choose to run.
But if you would like to be completely sure of yourself you can upgrade the diffs, CVDs, and UE idler gears. May need some of these, may not.
If you are a suave driver, like Tervuren said you can go without problems or a minor every soft often.
05-03-2004, 10:15 PM
Well.. I have yet to break any tranny gears in my 2 year old emaxx, powered by a c50, but i have broken the stock screws in the ring gear in the diff about 12 times.
05-04-2004, 12:01 AM
Jonyb2002 is right. If you're looking for a simple answer, the bad news is, there is no simple answer.
"Going brushless" means something different to each truck and each driver. Some folks will break tranny gears, while others will snap and twist drive shafts, and others will grind diff gears.
Since almost everyone is "on a budget", the best advice is to just go ahead and start driving. Replace the broken parts with stronger ones as you break things and go from there.
The reason I say this is because I honestly feel that diving into something as serious as a (for all intents and purposes) "BETA" power delivery system for RC, in the infancy that brushless is, requires a tad more commitment than just trying to find out what's going to get you by.
Believe me, your first drive train upgrade will be the very last thing on your mind when your ESC goes up in smoke and you're going on your 4th month of waiting for its (expensive) repair. No kidding.
People doing the brushless thing are power freaks who should know the risks ahead of time. It's not proven technology in RC yet -- especially in the E-Maxx. But, every person with an E-Maxx who goes the way of the brushless demon, adds just one more step toward BL being affordable and reliable for the RC masses.
I do believe that BL is the RC power system of the future, but still needs a LOT more real world experience before it's finally mature enough to call it a "no-brainer".
05-04-2004, 12:09 AM
I'm assuming it's companies like Trinity that prevented Brushless to appear in R/c cars?
Since the technology has been around a while, majority for planes and boats.
05-04-2004, 02:58 AM
well, brushless is on its way into the touring car seen isnt it. Team Orion Vortex 8,10,12
these are just two that are coming out/already out.
eventully.. like vhs and dvd, brushless will take over and brushed will ceese to excist.
05-04-2004, 09:01 AM
From what I've read, brushless has been around a while in RC boats/planes, but since those hobbies are small compared to RC cars/trucks, the sales volumes haven't been there to bring down the prices.
In addition, running a motor in a rc car or truck (especially a monster truck) is totally different than in a plane or boat. In planes and boats, the motors generally throttle up and stay there. They don't throttle up, down, go into reverse, get 'punched', etc. right after one another. In addition, a rc monster truck is heavy and has a lot of inetia to start/stop. In other words, running a motor in a rc moster truck is the worst possible environment for a motor. Setups that run fine w/o problems for years in a plane may die after 10 minutes in an rc monster truck. This isn't my research, this is just what I've read and it makes sense to me.
I suspect this is why Novak's HV Maxx is still 'vaporware'. They obviously can't get the system to a level of reliabilty that's on par with the stock system. Believe me, they don't need the black eye that would result from selling a system that had a 50% return rate due to system failure!!!
I'm sure they will 'sell no wine, err brushless system, before it's time'.
Just my 2 cents.
05-04-2004, 03:58 PM
brushless motor in planes normally have a great big thumping fan infront of them to cool them, thats why they are efficent in planes. in boats the motor is either water cooled or cold water is surrounding it.
if you have a couple of fans on yer maxx with a sensible driver you'll be fine.
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