Recomended RPM range explained

[Crash]

What timing are you using with that TP 4060?

timing is at 2

[Crash]

I looked it up. It's good for 8s so I'd go with that.

its a little close to the motors limit on voltage.
from what I found the motor has a 29 volt limit.
tppower40601750kv.jpg

[fweasel]

timing is at 2

Assuming this is the 1750kV motor, and a Y wind, why so low on the timing? I run more timing on my Y motors, and low timing on my D wind motors.

[Prodrvr]

its a little close to the motors limit on voltage.
from what I found the motor has a 29 volt limit.
[ATTACH=CONFIG]161441[/ATTACH]

Yes...8s

[Prodrvr]

Assuming this is the 1750kV motor, and a Y wind, why so low on the timing? I run more timing on my Y motors, and low timing on my D wind motors.

He corrected...it's the 1650 which is a D wind. Has timing at 2 degrees...should just set it to zero.

[785boats]

its a little close to the motors limit on voltage.
from what I found the motor has a 29 volt limit.
[ATTACH=CONFIG]161441[/ATTACH]

Never run anything at its maximum limit.
Bear in mind a fully charged 8s pack at 4.2V/cell is putting out more than 29v for a while.

If you are still running the Swordfish ESC, set the timing to 'Auto' for a couple of runs and compare the data. I've always found that with my Swordfish ESC's, the system runs cooler & more efficiently on the battery. That's just from observation. So some data might be good to see.

[Crash]

That was Fun.

I ran it on 8s just now.

The amps are down through out run because I am not going 100% throttle.

The max amp draw is similar to 6s but, with more volts the motor is spinning faster and getting the job done easier and sooner so you don't use full throttle drawing the huge amps.
40k rpm

8s1strun.jpg

I think 8s is where its at for me. the lipos, motor and ESC were warm not hot. doing a timed run as not to over load lipos. starting at 4 minutes...lipos come off warm 100 too120 F

[Crash]

Never run anything at its maximum limit.
Bear in mind a fully charged 8s pack at 4.2V/cell is putting out more than 29v for a while.

If you are still running the Swordfish ESC, set the timing to 'Auto' for a couple of runs and compare the data. I've always found that with my Swordfish ESC's, the system runs cooler & more efficiently on the battery. That's just from observation. So some data might be good to see.

thanks for that.

do you use the Freewheeling setting on or off?

[785boats]

My swordfish ESC's are older than the newer ones with the freewheeling diode.
If you are only using part throttle you had better switch it on.
Part throttle can be very harmful to an ESC. The freewheeling diode should help.
If you can't use full throttle then don't run 8s. An ESC is most efficient at full noise.
Maybe drop the prop size down to allow full throttle if you want to continue running 8s.
You must be on the limit of that setup now so be careful.
Mind you, this is coming from a person that only runs oval laps where the throttle is pinned for the whole race for about 1.5 - 2 minutes.
A different concept to the few second bursts that you guys do.

[Crash]

My swordfish ESC's are older than the newer ones with the freewheeling diode.
If you are only using part throttle you had better switch it on.
Part throttle can be very harmful to an ESC. The freewheeling diode should help.
If you can't use full throttle then don't run 8s. An ESC is most efficient at full noise.
Maybe drop the prop size down to allow full throttle if you want to continue running 8s.
You must be on the limit of that setup now so be careful.
Mind you, this is coming from a person that only runs oval laps where the throttle is pinned for the whole race for about 1.5 - 2 minutes.
A different concept to the few second bursts that you guys do.

Ty.
That concept I have never heard.
I never run at 100 % throttle for more then 2 to 4 seconds at a time ... Its doing over 70 mph at that point.
I want to go fast but, in short spurts.
And I want all the low end power that comes with my set up.
It runs cool and fast
I hope esc holds up.

[Prodrvr]

4 seconds sounds better! So running 8s with the same prop used less amps at full throttle than 6s?

[Crash]

4 seconds sounds better! So running 8s with the same prop used less amps at full throttle than 6s?

Under load , like full throttle take off it is about same. But your going faster.
More volts did not rise or lower amps.
Just put the rpms in better place imo
I am sticking with 8s for now and see where I am at.

[Prodrvr]

How are your motor/esc temps? What's the total run time?

[Crash]

I am stopping at 4 minutes to be safe threw this testing.
Temp is 120 f. Threw out system

[Prodrvr]

Very good. This is making me rethink my batteries for the Cheetah build.