Concerned about new Savage Flux running a bit warm on test drive
 

Allright, looking for some input from the castle guys on my temperature concerns with my new Flux on its first test drive. My new project, "Frostbyte II" with a new Savage Flux is nearing completion and I FINALLY got to take it on a test run today to see how everything performs.

This was the following setup during my 10-12 min outside, concrete run.

Gearing: Stock 20/44
Slipper pad: Cranked down tight
Lipos: Turnigy 5200mha 30c-40c hardcase
Blur settings: 10% punch control, 20% brake, no drag brake, 25% reverse, 3.5v cutoff
Diffs: 50k oil front and rear

The truck is on standard HPI GT-2 tires with white dish wheels. It's also on an extended FLM TVP chassis with HPI extended axles. The endbell of the Tork motor has also been sealed up with screws to minimize dirt intake.

I went outside a short time ago in around 90 degree temps and gave the Flux some trial runs on the black concrete with no shell on. It was basic, straight speed runs with a variety of throttle usage from full on power to slow acceleration along with testing the vehicle's ability to wheelie via both a rolling and standing start. Within a few minutes, I stopped and checked the temps of the motor and ESC and they seemed reasonable, so I continued a few more speed and wheelie runs on the concrete along with a fair amount of braking.

Around the 5-7 minute mark, I checked the temps again and I noticed the motor housing was getting pretty warm all around. I could keep my finger on it without discomfort. The ESC was also pretty warm on the outside. I did some short wheelie, full throttle blips and checked again. This time, the ESC fan was kicked on and ran for a few seconds before shutting off, the bullet connectors were hot to the touch and the motor housing was now pretty warm, warmer then I remember my first Flux motor running.

Unfortuantly, I do not have a temp gun, so I am going by feeling for temperature readings. I again did a few more laps on the concrete and once again, the ESC fan was running when I brought it in again and the motor definently had a singy feeling heat quality to it. With that, I shut it down, brought it inside and also found the Lipo's were slightly warm to touch once I removed them.

It's been awhile since I drove my first Flux so I'm no longer familiar with how my temps should be, especially with my current build. Could I be increasing motor temps from sealing the endbell? Is that still considered "safe" on sealing the endbell like you told me last year? Is the XL chassis and wide axle putting that much more load on the whole system? The entire tranny felt very smooth all around with no binding that I could feel anywhere.

Any suggestions or incite Patrick to either confirm or deny my temp worries? Thanks again.


http://i100.photobucket.com/albums/m...trialsetup.jpg

http://i100.photobucket.com/albums/m...sealmotor3.jpg

http://i100.photobucket.com/albums/m...e2/finally.jpg

Spend the 20 dollars and get a temp gun to know whats going on with your 1500 dollar truck...

Esc fan comes on at 150 which is fine...

If you can hold your finger on the motor for 3secs its fine but i agree get a temp gun

Get a temp gun!

*sigh*...... another thing to buy

20 now or 170 later if and when you melt down a major component....:whistle::whistle:

I know, guess i'll place another order from Amain...


http://www.amainhobbies.com/product_...perature-Gauge

Thats the one i have :)

Oh? Does it work fairly well/accurate? I can't complain much for $25

Once you get a temp gun, (should have ben bought long ago) I think you'll see your probably worrying for nothing.

Raising the punch control will help with temps as well, make sure your motor timing is set at Low or Normal at the most.

+1 I also have that one...

If you can hold your finger on the motor then you are fine , but if you are unsure then a temp gauge would be cheap insurance .

I have that duratrax one too. It reads about 20 degrees under compared to my odonnell one. I think I changed a setting to "6"? For reading anodised things.. Then it was better. Its been awhile since Ive used it.. So Im a bit fuzzy on the numbers.

Punch is at 10% right now, timing is set to default

I know, read it in the first post.

Like I said, if you raise the PC it will help w/temps

I think motor timing at default is "normal" and thats OK, but again on low it will help w/temps also.

If you can hold your finger to it without discomfort, you are well within the "normal" range.

If your finger sizzles, and you scream and yell and blisters appear on your fingers, then you are probably running it a little too hard. :lol:

Seriously, the motor is fine to temperatures that would cause you a lot of discomfort... The main magnets in the 2200 motor (the HPI flux is based on the 2200) are good to 170C-180C, which is about a 120-140C case temp. The windings are also rated to 180C, and the main wires are rated to 300C.

So no worries at all.

Whats the rtr weight like?

That's a good temp gauge especially for the price. Like said, 20 dollar insurance on 1k plus in truck is pretty cheap.

I have an IR gun too. Its a required tool, no toolbox should be w/o it.

Plus for $20, you can diagnose problems quickly, and you won't have to bother Patrick and distract him from his very important work of finishing the HV MMM for final release, among other things.

Temp guns can be used all over the place, including drivelines, slippers, pinions and many other places to see if there is excessive binding and wear.

:lol::lol::lol:

:party:


That's pretty funny -- Actually today I'm working on some top-secret stuff for Traxxas....

Please please please finish the HVMMM? My motor temps are Room Temp, as I have no (decent) controller to run my truck.

Its making me, my Savage XL, my 10S/8S worth of batts, and my 1521 all very sad, snarky and sarcastic. :cry:
If you need beta testers.. I may know of someone, and its not Chris L.. ;)


@ Freeze: The HPI manual recommends the motor stay below 190F. Considering you are still typing with those fingers, you're prolly gtg.

The HVMMM is done -- just waiting for final Beta feedback. :)

What about in regards to the ESC temps with the fan kicking on frequently? What about the sealed endbell? Is that still a good idea Patrick?

And Brian, I swear to God, if you start another anti fan rant.... :whip:

The fan temp is set pretty low -- if it's not running all the time, you are fine.

Thanx!

Thank you Patrick, I appreciate it. I'll get a temp gun enroute next week. I may take a few of the endbell screws out just to help the motor breathe a little bit

Oh... those guys? I just talked to them yesterday, and they said everything is great. In fact I think thier exact words were OMGWTFBBQ!

Soo.. where do I send my payment? I'll just PM you my CC # and just LMK
Thanks, can't wait!

:party::lol:

Yeah, I stick mine up to my wife and tell here she's hot! Hey, if it gets me a roll in the hay I can be corny all day long.

I also use it on my driveline for my Losi Crawler and numerous other places. The 20 bux definitely paid for itself.




So Patrick, top secret Traxxas hmmmm? You know you just opened up a whole can of "Patrick what is this new Controller" don't you? :rules: :yes:

Of course you probably like it as it feeds the ego huh, all us kids asking "when daddy Pat when?" :lol:

Unfortunately, it wouldn't be at all interesting to RC Monster people...

:lol:

http://i100.photobucket.com/albums/m1/Phantron/lol.jpg

So i'm assuming my sealing of the endbell isn't gonna cause issues either?

Thats fine Patrick. We still like to see what our favorite people are working on!

Can we buy CC stock yet? :whistle:

The fact that you have that picture freezebyte is very disturbing to say the least......

lets see how long those 2 pics last......:whistle:

still funny though:rofl:

Somethings still not right after todays full run. Any input on this Patrick?

http://www.rc-monster.com/forum/show...=27781&page=11

that's 250F btw

Patrick told me to tell you to get a temp gun before you bother him more. He's busy with the MMMXL

+++++++ and +

+80

:yes:

No he didn't....:no:





Did he? :oh:



I get the message, I just placed at an order at amain for a duratrax temp gun, happy now?