My e-revo brushless edition build - Page 20 - RC-Monster Forums

mistercrash · 11.20.2009, 01:42 PM

Last ones I promise

Graph of an old FlightMax 5000 mah 2S 20C.

FlightMax 5000 2S
Discharge rate: 10.00 A
Starting voltage: 8.45 V
Ending Voltage: 6.00 V
Total Time: 27 min. 08 sec.
Tested Capacity: 4517 mah

And to compare a Flightmax with a Turnigy. Same capacity, S count and C rating. Turnigys rock.

suicideneil · 11.20.2009, 07:02 PM

I could look at graphes and comparisons like that all day long and not get bored- its solid gold 100% honest testing that is extremely easy to interpret & understand

shaunjohnson · 11.20.2009, 09:34 PM

yeah, add to the eagle tree data on the same packs that is floating about and you have mega data!!

too bad the CBA only does 10A right?

mistercrash · 12:24 AM

Quote:

Originally Posted by shaunjohnson

yeah, add to the eagle tree data on the same packs that is floating about and you have mega data!!

too bad the CBA only does 10A right?

It depends on the number of cells you plug into the CBA. It let me test at 10 amps for 2S but would ask me to go down to 5.9 amps for 4S. A Techy could probably answer why. Westmount Radio is the company that makes the CBA. They also make 500 watt amplifiers to use with the CBA. That's 120 amps you could test one cell with. They also talk about a harness to be able to use up to four of those 500 watt amplifiers for a total of 2000 watts so that's like 476 amps is it?

I hope I'm explaining this the correct way. I kinda read quickly through their description on their site.

Those amplifiers are a bit pricey though at $730.00

mistercrash · 11:07 AM

Long story here so bare with me. I introduced my little boy to RCs when he was 4 years old. I let him run my nitro Revo one day with the throttle set to 30% on the radio and taught him the basics of driving an RC car. I was surprised at how fast the little bugger learned to turn, brake and in general have a good control of an RC. So I bought him a Losi Mini T. He likes it a lot but it's a little small. He really likes race cars so I am presently rebuilding an old Tamiya TL-01 on road car. He should like this one also but I really want him to be able to play with daddy with big toys, namely Revos. The mini T is too small and the TL-01 is on road so I need to build him an ERevo.
Here's my plan, I have several spare parts for both my nitro Revo (which is not being used lately) and my ERBE. Including complete diffs, tranny, MMM combo, etc. So here's the plan, get a Kershaw Design chassis for my ERBE and whatever is salvaged from my ERBE doing the chassis swap, with stuff from the nitro Revo and the spare parts, make a secong ERBE which would be my son's. I have a couple of Turnigy 4500mAh 2S2P 30C LiFePo4 Packs coming in so it would be a little slower than mine but that would be good. I might still have to adjust the throttle on the radio to make it even slower. A ten pound truck coming at 35 mph might break a five year old boy's bones you know.
What do you think? Good plan? Anyone wnat to buy some nitro stuff? Engines, pipes, glow plugs

Of course, if I get a Kershaw Design chassis, I would document the swap and post pics in this thread as I always do. And then hope to have some run time to test before the snow comes.

shaunjohnson · 11.26.2009, 06:08 PM

Quote:

Originally Posted by mistercrash

It depends on the number of cells you plug into the CBA. It let me test at 10 amps for 2S but would ask me to go down to 5.9 amps for 4S. A Techy could probably answer why. Westmount Radio is the company that makes the CBA.

they resisters measured in ohms...this will ultimately tell us how much they will draw. but they have a wattage rating!! volts goes up, amps comes down, same watts achieved.

Bondonutz · 11.22.2009, 11:14 AM

Ray,
Sounds like a great plan, The boy should really love it.

A 10lb MT and anyones bone are a bad combonation at 35mph. Batter safe than sorry with the young lad.

mistercrash · 11.22.2009, 11:39 AM

Yes he's very good at controlling his Mini T but an ERBE is very different. I would also gear it so it would go as slow as possible, biggest spur and smallest pinion available. 15 to 18 mph would be plenty until he really gets used to it.

mistercrash · 11.22.2009, 11:58 AM

I did it! I just ordered the Kershaw Design LCG chassis. Now I wait... In the meantime, here's a well made movie from jetlag2222 who bought the chassis and installed it, tried it and made a nice review on it.

SpeedAssault · 11.26.2009, 02:38 PM

EXCELLENT EXCELLENT Build thread.

By far the best detail with pics, discussion and how to

I thin k you out did me

Like you I have LST diffs and 6s.
my stock shafts have begun to break

What axle shafts have you gone to, which is the best ?

mistercrash · 03:51 PM

Quote:

Originally Posted by SpeedAssault

Like you I have LST diffs and 6s.
my stock shafts have begun to break

What axle shafts have you gone to, which is the best ?

All the shafts are good (except Integy) as long as you have a good slipper that is well adjusted to protect them. I tried the stock sliders and the Summit shafts. The sliders snap and twist more easily. The Summit shafts don't snap or twist as easily but every part wears out quicker than the sliders and become full of slop. The sliders die quickly, the Summits die a slow and painfull death

It's all in the slipper from my experience, if you don't have one on your ride, rig one up or stock up on spare shafts.
Once you have a good slipper to protect your drive train, it will be better. But there is no getting around the fact that we run with very powerful power plants. We have ways to prevent the shafts from snapping at every burst of the trigger, but whatever shafts you use, even with a good slipper, they will wear out faster. Especially when using 1/10th scale parts for a 1/5th scale application.

rawfuls · 11.28.2009, 10:16 PM

Haha, neat name...

If you're gonna run a MMM, you can set the throttle limit on the ESC, as I heard doing it on the TX could be bad, but that might just be hearsay