Have tech questions? Will answer.

[JohnRobHolmes]

16t should be a fine start, the 540L is more motor than the 1410. Racers tune for the track wheelspeed without overtemp @5 or 7 minutes, if you aren’t actually racing on the same track and setup it won’t help to go off the same gearing.

[HumboldtEF]

I had a question on the Puller series of brushed motors, have they been replaced by the Magnum motors?

I was think about trying out a lighter motor in my next build and the brushed Puller motors seemed like they'd be a good fit.

And what is the difference between the Puller 400 and the 400T? Is that like the "Pro" version like with your other brushed motors?

[JohnRobHolmes]

Not replaced, just ran out of puller 400 and 500 cans for a few weeks, they are all "Pro" hand wound quality. The 400T part number includes options that our driving team prefers to have, T for Team edition.

[BDR]

Just built a new c2 rig with Losi worms, and running a xr10 trans......need a motor

Apparently every thing i have read they like power

This thing suit ya reckon?

PULLER PRO BL 540 STANDARD?

I do have some brushed 500 pullers here, but would rather they go to something else

[Weasel]

I'm going to try the Revolver in my Losi CC. With the Sidewinder 4 ESC do I need to run an external BEC for a HiTec HS-7955TG steering servo?

[TheLetterJ]

Originally Posted by Weasel

I'm going to try the Revolver in my Losi CC. With the Sidewinder 4 ESC do I need to run an external BEC for a HiTec HS-7955TG steering servo?

The 7955 has a listed stall current of 4.2amps, the SW4's bec is 5v/2a, so yes, you'll want to run an external BEC.

[Weasel]

Originally Posted by TheLetterJ

The 7955 has a listed stall current of 4.2amps, the SW4's bec is 5v/2a, so yes, you'll want to run an external BEC.

huh, why in the world have they not figured out how to do away with the external BEC is baffling. Seems like a no brainer feature.

Thanks.

[TheLetterJ]

Oh, they have figured it out, just look at the MambaX line. I'd guess it would add a little to the price of the SW4, and I'd bet that the majority of that esc's target market is indifferent to the BEC's output since a Traxxas Slash/Stampede/Rustler/etc rtr servo runs fine on 5v/2a, so they opted to cheap out there to stay at a price point? ... or, they have no problem selling $20-$40 external BEC's, so why change it?

I'm with ya though, I thought I was being a smart guy going with the MicroX for better packaging, but by the time I added the CC BEC, it's pretty much the same size, and only ~$20 cheaper than just going with the MambaX. Honestly, they made the MambaX for our application, so I really have no room to complain since the option was there.

[Browneye]

Originally Posted by Weasel

huh, why in the world have they not figured out how to do away with the external BEC is baffling. Seems like a no brainer feature.

Thanks.

They have. It's called the Mamba X. 8ah on the internal BEC.

• INPUT VOLTAGE RANGE OF 2S-6S with an internal 8A ADJUSTABLE BEC (5.25V-8.0V)

[fyrstormer]

Originally Posted by Weasel

huh, why in the world have they not figured out how to do away with the external BEC is baffling. Seems like a no brainer feature.

Thanks.

It has to do more with being able to sell accessories than with being unable to fit a properly-strong internal BEC.

[robert@castle]

Originally Posted by fyrstormer

It has to do more with being able to sell accessories than with being unable to fit a properly-strong internal BEC.

It has more to do with wanting to hit a price point than wanting to sell accessories. I was trying to get them to make it a 3A BEC instead of a 2A but they didn't think that adding the extra dollar to BOM cost to it would result in more sales. The fact that the Sidewinder 4 works so well with the revolver motor was never our intended market for it. The sidewinder 4 is intended to be an entry level upgrade for 1/10th bashing RTRs that come with a brushed or low quality brushless system. We never actually tested it in a crawler. We knew our 2.02 firmware was good at running sensorless motors, but we never even checked that it was as good as it is. We just wanted to make it a worthy upgrade from the Sidewinder 3.


We have the 20amp BEC from the XLX that we could probably fit into the Micro-X(case would have to be taller), but it would double the cost of the Micro-X. Most decisions are made via price points and not on 'what accessories can we sell with this?" Any accessories we sell are intended for the 10% of users that need them, everyone else would rather have a less expensive ESC.

[Jboucher]

That being said where is the Mamba X2 with integrated bluetooth and the waterproof sensor wire from the hobbywing AXE ?



...it's a joke, don't want to start a forum war...
Sent from my Pixel 2 XL using Tapatalk

[willyg1981]

Is there a rx on the market that can actually cope with a power hungry servo and an internal bec turned up to 7.5v ? Or does it have to be an external bec to make it safe so it doesn’t kill the rx ?


Sent from my iPhone using Tapatalk

[Jboucher]

Originally Posted by willyg1981

Is there a rx on the market that can actually cope with a power hungry servo and an internal bec turned up to 7.5v ? Or does it have to be an external bec to make it safe so it doesn’t kill the rx ?


Sent from my iPhone using Tapatalk

The RX doesn't care about the servo, it just allows amps to pass through.
You need to make sure the RX takes whatever voltage you want and the ESC can supply the amps

Sent from my Pixel 2 XL using Tapatalk

[Jboucher]

Or get a servo that plugs into your 2s or 3s battery

Sent from my Pixel 2 XL using Tapatalk

[willyg1981]

I thought an rx was limited to a specific amount of voltage I’m sure Iv seen 6v on mine ? Which I assumed was the limit that it could handle ?


Sent from my iPhone using Tapatalk

[Browneye]

Originally Posted by willyg1981

Is there a rx on the market that can actually cope with a power hungry servo and an internal bec turned up to 7.5v ? Or does it have to be an external bec to make it safe so it doesn’t kill the rx ?

I've never heard of receiver problems with high-amp BECs. The wires are short enough, and just passing through power to the servo.

Makes sense though, if you run enough power through that little receiver, conceivable it could burn it out.

On advice here I got the MambaX with a standard Spektrum 4ch, and HH high-volt servo. No issues at 6V, it's as fast and powerful as I could want in a Bomber.

The Spektrum SRS4210 says: Voltage Range: 3.5-9.6V

But no rating for amp flow-thru.

I set my bec's so I can run 6v led's and controllers. For comp and no lighting then as high as your servo could use makes sense.

[willyg1981]

That’s interesting to hear !
I’ll have to investigate with my setup Im ashamed to say Iv been very busy lately and there gathering dust lol
I just remember the savox 1210 sg even when turned up to 6v being pretty weak in my rock Rey on 7.4 2’s *
And I’m sure I’d get brown outs aswell it would annoy me a lot


Sent from my iPhone using Tapatalk

[HumboldtEF]

Originally Posted by willyg1981

I thought an rx was limited to a specific amount of voltage I’m sure Iv seen 6v on mine ? Which I assumed was the limit that it could handle ?


Sent from my iPhone using Tapatalk

You're correct RX's do have a voltage range they can handle

[willyg1981]

Originally Posted by HumboldtEF

You're correct RX's do have a voltage range they can handle

Woohooo thank you humboldtEF I am learning , I’m not very good with electronics lol but slowly getting there ,...
Made my night that has


Sent from my iPhone using Tapatalk