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HOBBYWING TECH SUPPORT 1/8 & 1/10 OFF ROAD

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HOBBYWING TECH SUPPORT 1/8 & 1/10 OFF ROAD

Old 08-23-2015, 07:36 AM
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Originally Posted by DanDanny
I know about savox servos, I've tried glitch busters & I use a Castle external BEC on all my esc's ..I have two 120A SCT Pros's on 1:8 scale buggy's & they work perfect... I probably just got a bad one (the 150A) ..just checking to see if someone else had a similar problem & also if anyone's ran a xerun sct pro in an 1:8 scale truggy? cause I know they work.
Why not try the new XR8 speedo its 150 amp with adjustable bec,you can set it higher for hv servos.
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Old 08-23-2015, 07:39 AM
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Originally Posted by darren509
here is a quick video I took of the motor doing what ever you call this. https://www.youtube.com/watch?v=_n6wRQThSVs
Did you say you tried another sensor wire? Have you tried it without a sensor wire? My 8th scale runs fine without a sensor wire.......
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Old 08-23-2015, 09:05 AM
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Oops. Im sorry but I gave wrong information. Sorry I was really tired yesterday. I DO NOT have the castle bec installed yet (wrong truck) and I only have one sensor wire that came with the combo and have not yet tried running without it. I will try during the week.
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Old 08-23-2015, 11:03 AM
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Maybe somebody can chime in. I'm currently having a slight clogging issue on initial/ really slow throttle is this normal? I've tried to change the neutral range still the same thing firmware is updated

I installed my sons Tekin Pro4 HD 1800kv motor and it was perfect no issues and super smooth. This was with the same sensor cable.

SCTE 2.0
HW SCT Pro
3656sd 4000KV
2s Nano 7500mah
M12s w/RX-472

Last edited by ragekills; 08-23-2015 at 11:26 AM.
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Old 08-23-2015, 01:18 PM
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Is there a way to reduce the power output on the xerun 150a esc? I am using it for racing 8th scale buggy (in combination with smc 1900kv motor) and I am spinning out in corners and fish tailing way too much. I don't see an option to reduce power on the program box. I see some ppl running tekins say they are running at 40%. I am new to racing so I am sure I need practice to get the hang of throttle control but i would like to turn the power down some if possible. Thanks.
Or should I be controlling power with the punch control and adjusting the the throttle exp and speed on the radio settings? If so hat punch setting should I be using and also what should I have the "timing" setting set to?

Last edited by Slapjack; 08-23-2015 at 01:46 PM.
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Old 08-23-2015, 02:57 PM
  #9756  
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Just ran a brand new Hobbywing Just Stock ESC. ESC is calibrated correctly and has the factory cap installed. It has great top end for about 2 laps. Then top end is dropped dramatically. As if I am very under geared. According to the manual, the factory set low voltage cutoff is 3.2v per cell. Bu after only 2 laps, a fully charged 90C lipo would not be at 3.2v per cell. I'm running standard gear in a B5M buggy. New Reedy 17.5 Sonic, New Savox 1258 servo, fan on motor etc. What is causing this?
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Old 08-23-2015, 05:21 PM
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Originally Posted by Slapjack
Is there a way to reduce the power output on the xerun 150a esc? I am using it for racing 8th scale buggy (in combination with smc 1900kv motor) and I am spinning out in corners and fish tailing way too much. I don't see an option to reduce power on the program box. I see some ppl running tekins say they are running at 40%. I am new to racing so I am sure I need practice to get the hang of throttle control but i would like to turn the power down some if possible. Thanks.
Or should I be controlling power with the punch control and adjusting the the throttle exp and speed on the radio settings? If so hat punch setting should I be using and also what should I have the "timing" setting set to?
Tekin power limiter or whatever it's called is the same as the punch setting in a Hobbywing. There's no way to control the top end overall speed through the esc. You do that with your radio. There's 2 ways you can do it. Either by using the throttle epa setting (best to limit overall top end power) or if you need all the motor you can add negative throttle expo. That would smooth out the bottom end to mid power.

Personally I'd go with lowering punch to say 3 or 4. Then test. And if it's just overall crazy fast try going down to say 80% on your throttle epa setting on the radio.

Hope that helps
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Old 08-23-2015, 05:23 PM
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Originally Posted by AZDemille
Just ran a brand new Hobbywing Just Stock ESC. ESC is calibrated correctly and has the factory cap installed. It has great top end for about 2 laps. Then top end is dropped dramatically. As if I am very under geared. According to the manual, the factory set low voltage cutoff is 3.2v per cell. Bu after only 2 laps, a fully charged 90C lipo would not be at 3.2v per cell. I'm running standard gear in a B5M buggy. New Reedy 17.5 Sonic, New Savox 1258 servo, fan on motor etc. What is causing this?
That is interesting, do you having any lights blinking when you get the car back to the bench. Sounds like it maybe losing the signal from the motor sensor.
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Old 08-23-2015, 07:36 PM
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Originally Posted by Slapjack
Is there a way to reduce the power output on the xerun 150a esc? I am using it for racing 8th scale buggy (in combination with smc 1900kv motor) and I am spinning out in corners and fish tailing way too much. I don't see an option to reduce power on the program box. I see some ppl running tekins say they are running at 40%. I am new to racing so I am sure I need practice to get the hang of throttle control but i would like to turn the power down some if possible. Thanks.
Or should I be controlling power with the punch control and adjusting the the throttle exp and speed on the radio settings? If so hat punch setting should I be using and also what should I have the "timing" setting set to?
Set your punch to 1 and timing to 1 and it should get a lot smoother. You might want recalibrate your radio to the speedo. Make sure you turn your throttle end point all the way up along with the brakes before doing this. Then you can re-adjust the brakes and if you need to slow down the top end power you can turn down the throttle end point.
Paul
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Old 08-23-2015, 08:12 PM
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Thanks lewis110 and slot machine. I will give these ideas a shot and test it out.
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Old 08-24-2015, 12:00 AM
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Originally Posted by AZDemille
Just ran a brand new Hobbywing Just Stock ESC. ESC is calibrated correctly and has the factory cap installed. It has great top end for about 2 laps. Then top end is dropped dramatically. As if I am very under geared. According to the manual, the factory set low voltage cutoff is 3.2v per cell. Bu after only 2 laps, a fully charged 90C lipo would not be at 3.2v per cell. I'm running standard gear in a B5M buggy. New Reedy 17.5 Sonic, New Savox 1258 servo, fan on motor etc. What is causing this?
Could be thermal protection kicking in. Is the motor or ESC hot ?
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Old 08-24-2015, 11:48 AM
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Originally Posted by bakker1628
Could be thermal protection kicking in. Is the motor or ESC hot ?
No, both were at low operating temps. Plus, the manual says that overheat protection will shut it off completely. This issue just dropped top end.
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Old 08-24-2015, 11:49 AM
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Originally Posted by lewis110
That is interesting, do you having any lights blinking when you get the car back to the bench. Sounds like it maybe losing the signal from the motor sensor.
I should have noticed this but unfortunately I did not. I will have to try and get it to happen on the bench and check it.
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Old 08-24-2015, 12:13 PM
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Originally Posted by Slotmachine
Why not try the new XR8 speedo its 150 amp with adjustable bec,you can set it higher for hv servos.
I eventually will get the new 150A.. Just didn't want to throw out an almost new one without checking to see if anyone else had any suggestions I haven't already tried.
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Old 08-24-2015, 02:21 PM
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Originally Posted by AZDemille
Just ran a brand new Hobbywing Just Stock ESC. ESC is calibrated correctly and has the factory cap installed. It has great top end for about 2 laps. Then top end is dropped dramatically. As if I am very under geared. According to the manual, the factory set low voltage cutoff is 3.2v per cell. Bu after only 2 laps, a fully charged 90C lipo would not be at 3.2v per cell. I'm running standard gear in a B5M buggy. New Reedy 17.5 Sonic, New Savox 1258 servo, fan on motor etc. What is causing this?
I imagine the motor timing is turned up? Possibly a bit too much?

But your losing sensor connectivity and the esc is dropping into sensorless operation. To confirm this check the LED's when this happens and if the red/green are blinking that indicates sensorless mode. There are only a red and green led.
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