set up for BL revo.

i dont get the whole ubec part.

im looking for a fast revo, nothing about racing. something to compare to my friend BL hyper 7.

what if i got the Warrior 9920 Brushless Car Controller , ran two 7 cell packs to power it, and the stock reciever pack as the last 5 cells, so thats 19 cells. so thats 1 under its max. would that work? im looking for more speed, so would a 7,8, or 9 be the best for more of a speedy revo? and which mod 1 pinion works on the xl's which one in the store. (if you can show me, thanks. i need a budget ).

[BrianG]

First; don't count your receiver pack into the cell count for the ESC power, only the main batteries, which you have 14.

A UBEC is simply a switching voltage regulator that takes your main 14 cell pack voltage and converts it to 6v for the receiver. The fact that it's switching makes it very efficient and it is very light as small compared to a receiver pack. And since it uses your main batteries, you don't charge it.

More information: BEC/UBEC information

For a best match with 14 cells, I'd go with an 8XL.

Try this motor selector to get an idea of your options for the motor: Motor Selector Calculator