R/C Tech Forums - The Speed Passion Thread

I think the track you are talking about is nothing like this ! Fast and long track
So if it isn't your FDR is to low. You should be able to hear the motor not reach its max rpm on the straight. without boost it should reach this between 1/2 to 3/4 of the straight.

Quote:

Originally Posted by jhs3373 (Post 13581790)

Do you think this MMM motor should use mod firmware ?

Like i said using the stock 0 should not be a/the problem.

Andre

Jeepy2013

10-10-2014 10:57 AM

Quote:

Originally Posted by Jeepy2013 (Post 13575877)

BRAND NEW Speed Passion MMM 17.5R , less then 5 minutes of run time, conservatively geared. I would say this is a manufactures defect??? I've never had a brushless motor do this, let alone a brand new one.

http://i1310.photobucket.com/albums/...sa3650775.jpeg

http://i1310.photobucket.com/albums/...s5aad4624.jpeg

I email Speed Passion USA support a week ago about this and included these pics.......

Nobody bothered to respond.

CL	10-10-2014 02:26 PM

Quote:

Originally Posted by jhs3373 (Post 13577339)

Hi there, got problem w/ heat.
I have a Speed Passion 3.5T MMM motor with Reventon Pro 1.1 install in my touring. FDR = 8.9 Running with blinky mode (stock 0 - zero timing firmware). Extra Fan attached.
I get an overheat issue only running maybe 2 - 3 minutes. Symptoms : powerful at the beginning then when it reach the thermal cutoff it loses the power (still can move but no power).
Then I let it cool for a while and try again but same result.

Question :
1. Is my FDR is to low , I meant do i have to change to a smaller pinion ?
2. Is it correct to use this motor in zero timing ?

Any suggestion on what may be the problem. ? Please help me on this. Thank you.

Mine was doing the same thing with a SP 4.5T MMM geared at 8.0 with Stock 1 firmware with/without boost + turbo. It did not have any heating issue with a Reedy 5.5T.

Try another motor.

Jeepy2013

10-12-2014 07:05 AM

Quote:

Originally Posted by CL (Post 13587094)

Try another motor.

I agree

Blui3

10-13-2014 04:45 AM

Trying to find max prolonged running temp for a 10.5 and 21.5

Salkin

10-13-2014 05:07 AM

Quote:

Originally Posted by CL (Post 13587094)

Mine was doing the same thing with a SP 4.5T MMM geared at 8.0 with Stock 1 firmware with/without boost + turbo. It did not have any heating issue with a Reedy 5.5T.

Try another motor.

My son runs a SP MMM V3.0 4.5T on an older SP GT 2.0 Pro esc on a small indoor carpet track, all timing and boost turned off. FDR 7,66. Tamiya TRF418.

Esc loaded with mod firmware. SP states somewhere not to use stock firmware on a mod motor.

40x40mm WTF fan attached, and it can run for 15 min. straight and only gets about 55 degrees. Can run until LVC kicks in (5600mah).

kwiksi

10-13-2014 07:16 AM

Quote:

Originally Posted by Jeepy2013 (Post 13586768)

I email Speed Passion USA support a week ago about this and included these pics.......

Nobody bothered to respond.

Call them. Contact info below.
http://www.speedpassion.net/us/wheretobuy.asp

CL	10-13-2014 09:01 AM

Quote:

Originally Posted by Salkin (Post 13591435)

It works just fine on a cool day.

Solara

10-13-2014 12:12 PM

Quote:

Originally Posted by Jeepy2013 (Post 13589501)

I agree

Please call our office, we will take care of it....1-888-928-1328

SamuraiJack

10-13-2014 12:57 PM

Regarding Temp Monitor and Cutoff in Reventon Pro 1.0:
- does thermal shutdown option use motor temp as well as ESC temp to determine when to cutoff?
- the last recorded temperature is only ESC temp? Or the highest of ESC and motor temp?
- when thermal shutdown happens, do any leds remain blinking?

rapi	10-13-2014 05:53 PM

Quote:

Originally Posted by SamuraiJack (Post 13592391)

I think thermal shutdown only use esc temp to shut down.
Last recorded esc temp is current esc temperature.
....

Solara

10-14-2014 07:38 AM

Quote:

Originally Posted by SamuraiJack (Post 13592391)

(1) No....only ESC temp, do not have motor temp record.
(2) Yes, only ESC temp....
(3) Yes, check the manual....there is a pattern of LED light blinking.

P.S....in normal racing condition even if it is extreme, I would recommend you NOT to use the thermal protection as this function will shut down your ESC a lot eariler then its maximum racing condition temperature. I have use the Reventon ESC since 2012 and have not turn on the thermal protection on any of the ESC that I have own...which is more then 60-70 of them. Never use this function and you should not use it if you are racing.....

If you are only using it on the street bashing, then that is OK to use it.

Solara

10-14-2014 07:38 AM

Quote:

Originally Posted by Jeepy2013 (Post 13589501)

I agree

Jeepy.....PM send to you.

SamuraiJack

10-14-2014 08:55 AM

Quote:

Originally Posted by Solara (Post 13594171)

(3) Yes, check the manual....there is a pattern of LED light blinking.

What could be happening if the ESC simply shuts down completely, no lights blinking?

Mr_RCGuy

10-14-2014 04:50 PM

VERY bad cogging. Loud noise.

I have a 10.5R with a Reventon R ESC combo. It ran perfect in my SCT. I transferred it to my 1:10 pan car I am building and it is cogging VERY badly.

It is very loud through the entire power band. It runs fine until I mesh the motor to the spur gear. I have checked and rechecked the mesh and all the wiring. I even resoldered the wiring. It does with or without the sensor wire hooked up.

I have tried the drift and mod1 firmwares.

Any ideas?

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