Traxxas Link temperature thermistor reading high?

[ReeV0]

Hi all,

I've installed the Traxxas Link telemetry on my 3.3 but the temperature probe seems to be reading high? I just finished the first two tanks of break-in (idling using the Adam Drake method). It's super rich and just idling, yet the temperature was reaching 135c according to the telemetry. My IR gun was reading something closer to 100c...

Has anyone else experienced this?

 

[WickedFog]

Hi all,

I've installed the Traxxas Link telemetry on my 3.3 but the temperature probe seems to be reading high? I just finished the first two tanks of break-in (idling using the Adam Drake method). It's super rich and just idling, yet the temperature was reaching 135c according to the telemetry. My IR gun was reading something closer to 100c...

Has anyone else experienced this?

I don't know how accurate those thermistors are for RC use, but I can't imagine they are more accurate than the ones used in 3d printing. And changing one of them or a heating element on a 3d printer requires you run a PID tune cycle to tune the temperature reading. I assume there is no way to calibrate them in the Traxxas radio?

 

[ReeV0]

I don't know how accurate those thermistors are for RC use, but I can't imagine they are more accurate than the ones used in 3d printing. And changing one of them or a heating element on a 3d printer requires you run a PID tune cycle to tune the temperature reading. I assume there is no way to calibrate them in the Traxxas radio?

Unfortunately no way to calibrate as far as I can see. At ambient it seems to be reading correctly, i.e. the same as my IR gun, which is odd

 

[WickedFog]

Unfortunately no way to calibrate as far as I can see. At ambient it seems to be reading correctly, i.e. the same as my IR gun, which is odd

Are you checking the temp at the same spot the thermistor is reading? You can get different readings in very short distances around aluminum castings, depending on the features and thickness.

 

[ReeV0]

Are you checking the temp at the same spot the thermistor is reading? You can get different readings in very short distances around aluminum castings, depending on the features and thickness.

I tried to replicate the same spot. But I suppose my more pressing question is, could the 135c reading be accurate, considering it was just idling with a very rich mixture? The manual says that 130c should be the absolute max temp for this engine.

 

[WickedFog]

I tried to replicate the same spot. But I suppose my more pressing question is, could the 135c reading be accurate, considering it was just idling with a very rich mixture? The manual says that 130c should be the absolute max temp for this engine.

I am not a nitro guy, so I would not know. I was just commenting on the thermistor question.

 

[ReeV0]

Interestingly it reads correct at ambient (20c) but it's when the engine gets up to temperature that it starts to differ from my IR. The screenshot below was taken when the car was just idling, with an extremely rich mixture...