Great video, will be ordering a rotor master and load master today! One thought about your spreadsheet, add a column that divides Kv under load by Kv no load and that gives you a percent Kv maintained by the motor under load. I inputted into excel 3 of these motor tests from your spreadsheet in the video and added that column. The first 2 of your motors started maintaining around 93% to 94% Kv under load vs no load, then you start seeing the Kv percentage maintained start to drop as you increase timing and without fail that replicated exactly where you said you would time the motor. Also the percentage of Kv maintained under load appears to be indicative of rotor strength. You did not list in your spreadsheet the GAUSS rating for the earlier rotors, but on the 25.5 rotor you said it was on the weaker side of rotor strength, and when I inputted the Kv maintained under load divided by Kv with no load, that motor started out with 90% Kv maintained, whereas the earlier 2 motors started with about 94% Kv maintained under load. So % Kv maintained under load seems to indicate rotor strength. I’m going to order this system today and begin doing some testing. Would love to talk with you live on this, I friend requested you on facebook if you were interested in chatting excel and analytics. Thanks! Ken Peterson

@andrewsarratore5932

6 ай бұрын

Very interesting observation. Now I’m going to have to find time and run some more tests, lol. I’ll try to update the spreadsheet as well.

Thanks very much for your video. Very interesting results and I'm impressed you put that out so quickly! Quite surprised by the results you got from your Slot Machine in particular. I was suggested by the Slot Machine FB group to time it around 42.5 and to gear it (72/26-28). Anyways, I've not been really impressed by the motor and based upon your results wonder if I've been sent in the wrong direction to start. Will try timing it up and gearing the ratio up to see what it does. I'm in Australia and luckily can run it till the end of the year. Looks like replacements wont be around till April/May next year. The other motor I'm considering buying is a Surpass V6 which I like the idea of as I actually started with a V5R and was mostly happy with. Keep up the good work!

@andrewsarratore5932

8 ай бұрын

I was a little surprised by the Slot Machine #s as well. I have heard multiple times about timing it at lower values, like 40-42.5. But I also know that one of the faster racers at a local track run it (well used to anyway) at a higher timing. As to the Surpass V6, that motor does look pretty good. I'll run the G4 this weekend, and the next time I go out I'll try out the Surpass.

@grantoverend1

8 ай бұрын

I'd be curious to know what your experience is using the HW on track vs the others as well. What gearing are you going for?

@andrewsarratore5932

8 ай бұрын

@grantoverend1, ​I'm going to start with 72/24 and measure temps from there. Honestly, gearing is a guess at this point.

@andrewsarratore5932

8 ай бұрын

I ended up with 72/22 gearing on the Hobbywing G4. In the main I ran the R1 v21 super short at 72/25. R1 had more punch. Go figure... I turned the same times with both motors, it isn't the motor holding me back!

@grantoverend1

8 ай бұрын

@@andrewsarratore5932 Makes sense that our driving is the limitation but interesting that you felt the increased punch with the R1. I'd be curious to know how you find that against the Rocket & Trinity. I ran my Slot Machine w red rotor on the weekend at 50° and 78/26 (7.5) during practice. Unfortunately our track had just been re-oiled so grip was not typical but I did like the feel of the motor. Will try it again once track is better.

My 13.5 g4 at 46 degrees 6.6 amp with 4130kv 34283rpm

@andrewsarratore5932

5 ай бұрын

In my video I am using the HW Tunalyzer which regulates the voltage to 7.4V. If you are using a Tunalyzer and getting that much more RPM, then my motor is clearly not as good. But even then, what is your KV under load?

@southcarterracing9320

5 ай бұрын

@@andrewsarratore5932 have not done it with load it was the handout motor for the rc chili bowl

@southcarterracing9320

5 ай бұрын

@@andrewsarratore5932 I am still learning about the motor side of RC since doing more spec racing

Just ordered the loadmaster from DRC. Can't wait to test some motors. Is this spreadsheet available?

@andrewsarratore5932

8 ай бұрын

The spread sheet is on my wmhracing Facebook page and website. www.wmhracing.com

@D00rGunner

8 ай бұрын

@@andrewsarratore5932 Thanks.

This is a great video! I see you are using a brushless motor for a load. Would it be better to use a brushed? With using a motor as a load will the load increase based on rpm of the slave motor? For example, say one test motor is 3000 kv and one test motor is 4000kv. Would the actual load on the 4000kv be higher because it is spinning the slave motor faster?

@andrewsarratore5932

8 ай бұрын

Yes, when increasing the test motor Kv and using the same slave you will increase the load. I am using brushless motors because most people have some for spares. You want to keep the slave around the same as the test. Higher wind slaves also produce more load.

@malkie0831

5 ай бұрын

The problem with using a brushed motor as a slave is brush and comm wear makes them inconsistent. With a Brushless all you need to worry about is variations with motor temperature..