phmaximus
Posts: 4182
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Joined: 6/8/2008
Last Login: 5/21/2013
From: Adelaideaustralia, AUSTRALIA
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ORIGINAL: Foxy
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ORIGINAL: phmaximus
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ORIGINAL: Foxy
Telemetry schmelemetry. Even when racing nitro on road seriously, I just had no need for it. Unless you're so good that you can put down 50 laps all within .5 of a second of each other, you are not going to get anything meaningful from making adjustments based on what your telemetry is telling you, assuming the information is even reliable, which half the time it isn't.
I think telemerty is one of those things u don't need, but it wont hurt ur setup, and the information can be usefull.
It's a lot like a gps, u don't need it but I can be
One cool thing about telemerty if u are bashing ur car and some one asked how fast is? U can actually tell them
Telemerty would be Awsome or speed runs, and I use it all the time for battery voltage
Are u saying that the telemerty inaccurate? That that include traxxas or is that limited to spectrum?
Its not that telemetry is inherently inaccurate, but it is a matter of maintenance. How many people send their telemetry sets off to be callibrated every season? How many clean and check placement of sensors after every run? Believe me after a season of racing, you are not going to see the same numbers from the same conditions from the same probes and sensors. Then there's speedos which are simply calculated based on a tachymeter on a piece of the driveline, the internal gear ratios and rollout distance. In reality, you need to factor in tire drag, wind drag, tire swell if its a fast car. Then there's temperature probes, which need to be placed exactly where they need to be placed, just alittle off and you get a different reading. Then there's volt and amp (and therefore watt) meters, which are largely safe but depend on callibration to remain accurate over long periods, then there's the added weight of all this crap (admittedly small, but not negligible if you have the whole setup). Then there's the added complexity, more stuff to go wrong. If you rely on your temp probe while racing, and it suddenly stops responding, what's your choice? Pit and see what's wrong? Carry on and hope for the best?
I'm not knocking it in general, it can be useful, and if it didn't exist, you can bet I'd be trying to invent it, but I would never say its 'important' and its accuracy is very subjective, largely based on the diligence of the user.
I would say most guys send there telemerty sensors off just as much as other bashers send of there multimeters and temp checkers off to be calibrated.
Unlike spectrum traxxas use a magnate and sealed pick up, been dirty will not effect and readings. Same goes with the volt sensor.
The temp sender might have to be cleaned but I don't think a dit of dust will effect it to much, biggest thing would be if a Foreign object got under the temp sender but even then it will still read radiant heat
I would have to dissagree about weight, I can't notice a difference in weight from the old TQ receiver compared to the TQi receiver. The sensor weight would be nothing to worry about i wouldent be supprised if the servo wire weighs more than the sensor
The tachometer does factor wind speed and tyre drag??? Those are proportional to drive line RPM and that's what is measures.
I do agree that the rpm sensor cant measure tyre ballooning, but using the optional GPS it can. And with the two reading u coud work out the differences in roll out from low speeds to high speeds.
Care Needs to be taking when checking temps infrared or sensor, placements can effect readings doesn't matter is its telemerty or hand held. Temp sensors can be considered better because it can be placed under some heatsinks and can be placed directly over the exhaust port with out any covers effecting the reading like with infrared hand holds
Why would u stop racing because of a failed sensor? Most guys don't run telemerty so if I was racing and a sensor failed it wouldent bother me, all the other guys seem ok with out them
I think traxxas went all out with there products been user friendly. There telemerty is intended to be used with traxxas vehicles only, it can be modded to fit anything but I must say they have done a lot of R&D to make it all very user friendly, there is a speical mount for the temp sender for electric motors, the rpm sensr mounts are very basic and some models house them under the gear covers and for people that cant solder they even made a click on voltage tap for traxxas battery connectors
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All Forums >> RC Cars, Buggies, Trucks, Tanks and more >> RC Car General Discussions >> What Telemetry features would you like to see? 
What Telemetry features would you like to see? - 
