More speed

[bmx_rules42]

I'm new to all of this. I was wondering what all I can do to make my trail honcho a bit faster. I'm not looking to make it run 30 mph just a bit faster to get to point A to point B

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[1967Typhoon]

If you aren't running a 3S lipo, then there is your easy answer. That will make it 50% faster, with no other changes needed.

If you are dead set on sticking to 2S lipo or NIMH batteries, then you either need a motor with LESS turns (if you have a 35t go down to 27T) or a larger pinion. Be aware that both a faster motor or larger pinion will affect motor temperatures. So keep an eye on those if you make that change.

[bmx_rules42]

Thanks for the tip on a side note to run 3s what will have to be changed

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[1967Typhoon]

I would need to know more about what speed controller you are using.

[bmx_rules42]

Stock scx10 trail honcho

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[TacoCrawler]

Hope I make sense and don't confuse the matter further...

Moving up to 3s will increase voltage,
therefore it multiplies the torque...
as well as increases the over-all top end speeds somewhat.

But top speed on a crawler is less valuable then torque/tire spin (jmo)
The higher voltage allows for spinning the tires at lower speeds.

Torque and low end grunt/power is what yer after in a crawler (jmo)
this will allow for some adjustment to the pinion - spur tooth count
and allow for more gearing variations.
But the gearing selection is critical 'cuz motor heat produced excessively
can be damaging to itself and other e components.
Plus excessive motor heat can reduce your run times.

^ learn and understand the differences of how Torque and RPM work.
And how they differently approach/produce their over - all power.
While RPM may be more advantageous to higher speeds...
Torque is more valuable in a crawler at slower speeds.

Now depending on what ESC you are using... ( ? )
and whether that is 3s and LiPo capable.
You should do a few things to ensure that can handle the voltage of a 3s LiPo
and that the ESC has an on board low voltage cut off built in internally.

IMO there is a best way... and then... a not so great way.
ie: The Castle 10amp BEC wiring instructions are not the best way IMO

I recommend using the Holmes Hobbies "Y" adapter that by-passes
the RX altogether and feeds voltage directly to the steering servo.
Plus utilize an external voltage adjustable BEC set to the voltage your servo needs/requires.

The HH's "Y" by pass feeds the servo directly by-passing the RX altogether.
This allows the use of the ESC's internal BEC to supply voltage to the RX.
And will ensure the RX is not overly fed too high of voltage.

Most RX will not hold up well to a higher voltage input..
and usually only need/require 4.8v - 6.0v for operation.

Having a stronger steering servo and plugging that into the RX
can lead to voltage starvation of the RX.
And this could cause glitching in the radio system.

If ya utilize the HH's "Y" adapter and external BEC
the RX will be by-passed and use only the ESC's internal BEC to supply the RX.

So no matter what servo voltage is utilized ( 6.0v - 7.4v ^ )...
it cannot starve the RX of it's minimal voltage requirement.

The purpose of using an external adj. BEC is so that it can be adjusted
to the steering servo's voltage demands.
Which is commonly utilize/require 6v - 7.4v

--------------------

Remember...

That the HH's "Y" takes power directly from the 3s and regulates that
voltage thru the External adj. BEC that feeds thru the HH's "Y" to the servo.
...by-passing the RX altogether.

Then the ESC's internal BEC supplies the necessary voltage to the RX.

-------------------

Here's picture of how the HH's "Y" adapter and external BEC are installed...



The CC BEC's input to the HH's "Y" adapter is actually the BEC's output.
Sorry if my labeling is confusing.

[bmx_rules42]

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[bmx_rules42]

That's the ESC I'm running at the moment.

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[TacoCrawler]

That is the original Axial AE2 RTR ESC
which is mfgr'd by and is Castle Creations compatible.

IMO it's better then the newer Tactic Radio system.
Tho' the Tactic ESC claims it is 3s LiPo capable out the box.

The AE2 ESC's settings can be adjusted using the Castle USB Link/program.
Yes it costs $ 20.00 to obtain one.
Unless you know someone whom already has one.
Then you could simply borrow theirs to make your ESC's setting adjustments.

But with it...
you can adjust the drag brake and change the low voltage LiPo cut off value.
Set it to auto mode for battery usage type.
May have some other adjustments...
but I haven't had one for quite some time so I've forgotten.

This is a good ESC IMO

Tho' it is only 2s LiPo capable stand alone...
And a 3s will kill it... unless

You utilize an external/adj. CC BEC to allow for 3s LiPo use.

And if that CC BEC is combined with using the HH's "Y" adapter ( RX by-pass )
Then any servo (regardless of torque or voltage) you purchase can be utilized.
As the CC BEC's voltage can be adjusted ( using the CC's USB Link )
for that servo's particular voltage demand/need.

The Castle Creations USB Link/program can be used to adjust most every
Castle Creations compatible component.

I use one on my HH's BR/XL ESC as well as other Castle components I have.

Get the CC 10 amp BEC and the HH's "Y" adapter/RX by-pass
as well the Castle USB Link/program.

...if you wish to run 3s LiPo.

Stock 48 pitch gearing can be altered to your needs and wants.

I run an 87 spur gear with an 16t pinion.

But you can run anything fm 11t up to 20t pinions.
But if the gearing is too tall, the motor can run too hot.

So be sure the motor temps are not too extreme when running.

If ya don't have a temp gun...
a rule of thought is...

If you can't hold your fingers on it for a minute...
it is likely geared too tall.

Generally when running a 3s... you need to gear lower anyways.
ie: the commonly coined phrase...
"Volt up = Gear down"

so maybe start with 87/18 and get a smaller pinion for gearing down more.

One tooth difference on a pinion makes little difference... so...

get an 18t, a 16t and maybe even a 14t pinion
and see which works best for you.

[bmx_rules42]

OK thanks for all the help

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