even on your test equipment? Alligator clips seem to always be standard.

Alligator clips don't give a reliable low resistance connection. I use them for a quick analyser run but if I was going to do proper load testing with high currents, I'd solder too.

The spring tabs, on the MHRacing equipment, work just fine. You're not using a lot of amps. The most I've used, on a regular basis, is about 12 to 13 amps. Alligator clips have less contact area than the spring tabs.

I also saw that the 48* time to target rpm was the lowest at 784ms. Hopefully the tabs did not cause it...I'll be handling the load master 2 with care not to rattle things too much...
Also, the F1 cars at the US indoor champs were extremely fast with the new lower resistance 25.5t motors....

Yes, the time to target was affected as well. I have attached the test done after I discovered the issue. Notice I said I would time at 46*. 48* would be the max, but really the difference between 46 and 48 was negliable and would just lead to extra heat.

Just as an fyi, that was the first time I have ever had an issue like that, but I normally check the connections everytime I run a test. On video that is a bit harder to do since I have my camera in my way. I really need to find a better way to record videos, just that thing they call time that I don't have a lot of...


EDIT:

Here is a run I did with the R1 v21s 25.5. Both the TP and the R1 used the same slave, Slot Machine II 25.5. These motors could not be more different, lol. The TP motor is way less efficient, but has a lot more rpm under load than the R1, but the R1 maintains a higher percentage of its rpm under load. The TP also draws a lot more current than the R1. The R1 I would time at 42.5* from my test. And the gearing ratios between the motors would be a huge swing...

Both files say R1 in the header

My bad. Top file is the TP motor. I just end up using the same spreadsheet and putting in new info, I must have forgot to change the notes.

Would you use a 1S or 2S depending on what class you intend to run the motor in?

The R1 is the motor to use on short tracks with its fast time to target. The TP is very slow accelerating the load to the 10K target, eventhough it reaches a higher kv: that motor would be good for oval racing or very long flowing tracks...

Hi,

based on your recent testings, which motor (17.5t) is "the best" ? Locally the HW G4R is still one of the most used by people, are there any other valid alternatives compared to this motor ?

Thanks !

Or you could just gear them differently.

I would try to test at 1s for 1s classes, but there will be less load and the differences are smaller, so it may be more difficult to see changes.

Do keep in mind that the TP target rpm was 13000 not 10000 (which is was the R1 was set to). Also keep in mind that the power reference I use it not transferable from motor to motor, it is a reference to that motor alone as it measures the difference between unloaded and loaded Kv of that motor.

I don't think there is a scenario where I would run the R1 over the TP motor.

This question is probably better answered by OffRoadJunkie . My goal is to provide tools that you can use to test different motors with, not necessarily for me to test which is the best. Everyonce in awhile I will compare a couple of motors, but in general I try to stay as neutral as I can.

With that said, if the HW G4R is the popular motor at your track, it seems like a logical choice to run. And on the other hand, lot of hype on the TP motor right now...

To be quite honest, there really isn't one "Best Motor." It all depends on what you drive, the surface, the size of the track, how many corners there are, and your driving style. Check out my videos and you will see the differences of the motors.

I say just buy all the best ones and use them accordingly based on a set time to the same target(13krpm), while noting how high the top rpm reaches...Pick the best motor matching your track's layout and stay ahead of the field: it feels like I'm cheating already...lol...

FYI...
I just posted my video of the Team Powers V5S on The Jerry. I also decided to change the way I run motors on The Jerry. Remember, you can always go to WMHRacing.com to see the spreadsheets.