My new E-REVO

[suicideneil]

Sign upto photobucket.com.

You wont loose much runtime using the main batts for servo/Rx power, but you will need a seperate BEC to power the servos via the lipos, since 7.4v is too much, ~6v maximum really. Try BrianG's wesbite for wiring diagrams:

http://www.scriptasylum.com/rc_speed/_wiring.html

The capacitor should be wired to the esc's power wires, close to the esc as possible, + to +, - to - (in parallel).

You will also have to disable the built-in BEC by removing the redwire from the rx lead plug, and taping it back onto the lead.

Thanks for the info. Do you think that i will be alright with the set-up that i am running now. I have heard of a BEC but truely do not understand it and its function. Not to mention the wireing process. Seeing Brian G logo NO FANS makes me wonder. I just want to keep everything as COOL as possible and whats best for the truck.
I will check into Photobucket to learn how to send pics.

[BL_RV0]

Don't worry about Brian- I have no idea why he hates fans so much, but they're fine. I use them on most all cars I have.

Thanks, I just read that the fans just cool off the caseings and the inturnal stays hot. The fans have to make some differance. I also thought that caps cool down the ESC. I installed a 2700-25 to my mm. I am getting ready to order a mmm to switch out the mm. Would that help in the cooling department.

[BrianG]

Originally Posted by BAD 1

...Seeing Brian G logo NO FANS makes me wonder. I just want to keep everything as COOL as possible and whats best for the truck.

Lol, I simply feel fans are a bandaid approach to keeping a system run cool. Properly selected components for the application should require no fans IMO. I never run fans in ANY setup and things run perfectly. To each his/her own.

About the runtime issue: A UBEC is a switching voltage regulator. So, even if you are pulling 1A average at 6v to your servos, that is less than 0.5A from the actual batteries. Considering most MTs pull an average of around 13-15A from the batteries, an extra 0.5A will not noticeably affect runtime. If you get 20 minutes runtime with 5Ah batteries (15A average draw), running a UBEC with the same setup will reduce runtime to 19.35 minutes (assuming a 1A average servo current draw). For the mathematically challenged, that's a loss of 25 seconds of runtime.