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-   -   power caps for escz (https://www.rctech.net/forum/electric-road/30801-power-caps-escz.html)

xray racer 01-06-2004 10:07 PM

power caps for escz
i just bought myself an lrp quantum competition
do i need to solder a power cap to the leads, and if so what does it do???
and which ones are the best to buy???

please reply asap as i need to get it ready to race

robbie lloyd

Speedie 01-06-2004 11:39 PM

Yes you must have it on there, Im not sure exactly the way it works but it helps keep the esc cool. Notice there are no heat sinks anymore on the high end spedos. LRP makes the quantum worlds kit it would be the best for your spedo.

Mike Haynes 01-07-2004 04:08 PM

The Quantom 2 says it dosn't need one, but i stuck a novak cap on mine for modified racing, it worked fine with and without it (but it got warmer).

koabich 01-07-2004 05:10 PM

NO! You do not need to run the power capacitor on either LRP Quantum (1 or 2). They work fine without them. The manual even states this. The function of the power cap is pretty simple. When you gun the throttle, the motor pulls and extremely large amount of current from the battery. In high performance esc's like the Quantum, the motor can pull enough juice away from the receiver and the servo causing serious radio interference. The power cap is there to store some energy from the battery. With the power cap in place, now when you gun the throttle or need the power, instead of robbing your receiver and servo of power, the motor will receive any extra needed power from the cap. All the cap does is store power from the battery for the motor when it needs it.
With the cap, your car will have more punch but it will cost you some runtime. For the power cap I would only go with the LRP worlds kit. Not all caps are created equall and different ESC require different caps (not all caps are made to the same spec's - some store power faster than others...the requirement of which cap will work on your car depends on the speed that the mosfet's in your ESC open and close). The Novak cap will work on the LRP but if you want maximum power and function, stick with the LRP cap...buy the World's Kit...but you might not need it. Hope this helps.

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