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View Full Version : do speedos 'go off'?


cjm_2008
13-07-2015, 11:40 AM
As per the thread title - do speed controllers 'go off' with age?

I was running a sensored speed passion 8.5r in my KF2 yesterday with a reventon pro 1.1 ESC and it was ballistic down the straight.

I ran the same motor a couple of weeks before with an old-ish GT LPF & it wasn't anywhere near as quick. The battery pack was also the same (50C intellect shorty).

I can't tell what the settings were on the older speedo as it'd been sat in a hauler bag for almost 2 years gathering dust. But it could have been running 0 timing advance. Maybe this was the difference?

fidspeed
13-07-2015, 03:43 PM
think you may have answered your own qustion :thumbsup:

seriously i have never had a speedo go "off" in performance either it works or it dont

reverse connection doesnt always kill them either it can depend on a quick connection usally accompanied by a large audible "crack"
in the olds days the brake fets would die which meant you still hade forward but no brakes !!

regards dave

J77MYF
13-07-2015, 03:57 PM
I like those GT LPF speed controllers although they don't seem to push much power out compared to the newer stuff. I swap between that and an Orca and that literally feels ballistic in comparison with the same motor.

Welshy40
13-07-2015, 04:33 PM
Esc doesnt go off but motors do plus batteries.

cjm_2008
13-07-2015, 04:38 PM
think you may have answered your own qustion :thumbsup:

seriously i have never had a speedo go "off" in performance either it works or it dont

reverse connection doesnt always kill them either it can depend on a quick connection usally accompanied by a large audible "crack"
in the olds days the brake fets would die which meant you still hade forward but no brakes !!

regards dave

I remember reverse wiring my speedmaster silver star. It was toast. I can still smell it :(

That was over a months' worth of paper round money up in smoke.

I much prefer modern electronics...!

http://i147.photobucket.com/albums/r281/cjm2007_photo/20150713_174952_zpsagwkupvw.jpg (http://s147.photobucket.com/user/cjm2007_photo/media/20150713_174952_zpsagwkupvw.jpg.html)

fidspeed
14-07-2015, 11:44 AM
even worse was soldering a new motor in (brushed days ) before a final not having time/bothering to check direction of movement and demoloshing most of a final in reverse when the beeps go :D

dave

cjm_2008
14-07-2015, 11:54 AM
even worse was soldering a new motor in (brushed days ) before a final not having time/bothering to check direction of movement and demoloshing most of a final in reverse when the beeps go :D

dave

Been there, back in the early 2000s' in a touring car A final (Caldicot WRCA!). I drove my nuts off to qualify 8th overall. Much hilarity ensued :D

(although it wasn't funny then!)

Welshy40
14-07-2015, 01:20 PM
Caldicot, my favourite race place ever. Won a few events there, one of them using that old Tekin esc. I miss going there every Friday.

AmiSMB
14-07-2015, 09:49 PM
The ESC today have a lot of boost and turbo timing by default which was not enabled on your old speedo.