Calling All Brainiacs! - Page 3 - RC-Monster Forums

BP-Revo · 02.05.2007, 11:27 AM

LOL Procharged thats the funniest photo ever...you've just made my day... rofl...

If you want proper temperature readings, an easy way to get consistent results is to isolate the motor (possibly with the load creator as well) and then monitor changes of the ambient temperature in the isolated box, or container, or whatever. You will probably need a fan to expedite the transfer of heat to air, and would also need to ensure that other things in the box generate minimal amounts of heat. Then, you can just measure the change in temperature.

As for the load creator, I think a great idea would be a prop in water. However, most importantly, you must find a way to make sure NO air gets inside the water and near the prop, as it will change the overall density of the water in that area and lighten the load, producing varying readings.

You may also want to make some sort of way of preventing different gearing from affecting results.

Procharged5.0 · 02.05.2007, 11:51 AM

Quote:

Originally Posted by Serum

Please use this forum to share information, not to brag with knowledge or attitude.

Please explain...........

Is this a comment in general or are you accusing me of something?

I thought I addressed the topic from the standpoint of sharing info and brainstorming with "the collective" here in the forums. If you feel differently I'd like to know.

I don't feel like I show attitude or brag. Although I'll admit to getting impatient with a certain forum member.

If you feel differently I'd like to know.

BrianG · 02.05.2007, 12:16 PM

For loading, I think another BL motor would work. Just short the phases and let motor braking set the load.

Procharged5.0 · 02.05.2007, 12:17 PM

Quote:

Originally Posted by BrianG

For loading, I think another BL motor would work. Just short the phases and let motor braking set the load.

That would provide a compact and consistant load. Good idea Brian. I like it.

glassdoctor · 02.05.2007, 12:28 PM

Not sure if this has come up already, but a huge aspect of performance in brushless is the batteries.

Having dyno charts of all the different motors would be great. But there would need to be a lot of data to translate to predict actual performance. A motor would need to be tested under a wide range of voltages and loads.

Then a guy would need to know what his batteries can do... voltage drop under load... to match the right dyno chart.

But.... any dyno tests are welcomed if someone gets it done!!

Procharged5.0 · 02.05.2007, 12:32 PM

IF a dyno were built it would be cool to offer a dyno service. Send your packs(s), motor(S), charging ritual, etc to the test cell and have it dyno'd. Then you get back information specific to your combo.

An RC chassis dyno is also fascination to consider. having the combo tested in your car but "within the lab".

Procharged5.0 · 02.05.2007, 12:33 PM

BTW...

I just acquired an Eagletree systems data recorder..............

Serum · 02.05.2007, 12:38 PM

You got mail Hank.

i think that explains.

it was directed to a certain other member.

Procharged5.0 · 02.05.2007, 12:54 PM

Good to know.

Thanks Rene!

Serum · 02.05.2007, 01:32 PM

Anytime Hank.

Procharged5.0 · 02.05.2007, 01:38 PM

AMEN to that!

BTW

Like the new sig. Gee....I wonder where that came from :005:

Promod · 02.05.2007, 02:45 PM

An RC dyno would be great. Don't matter if its a chassis or engine dyno both would be a blast.
Put my 1:1 car on the chassis dyno 4 times last year. Had a blast every time and learned more about the car each time. When I took the car to the dragstrip there was still alot of tuning to do. But the chassis dyno did help.

An RC dyno would be the same. Its not going to tell you everything. But it is cool/fun to now how much HP your making or to compare motors batts etc.
What is the matter with braging rights:005: ?

Thank you,
Promod

Procharged5.0 · 02.05.2007, 02:53 PM

That what I've been trying to say! LOL!

Thanks for the support PROMOD.

BTW.....any chance you have a video of your car on the DYNO? I'd love to see it!

Mine goes back on the dyno in May.

Thanks,

Pro.

Serum · 02.05.2007, 02:57 PM

With 1:1 cars a dyno makes more sense IMO, you can tune it and now what direction you are heading. With RC, the eagletree tells me all i need/want to know. (not disagreeing with any other person/post here, just trying to share my opinion)

Promod · 02.06.2007, 12:06 AM

No doubt the eagletree is a great tool. Wish I had one years ago.

Sorry, don't have any video of the car. Someone did video it on the dyno everytime I went but was never given a copy.

Thank you,
Promod