8s2p cat

[NorthernBoater]

What are the different setups people are using for cats using 8s2p LiPos? I plan on using 4x 4s Hyperion 3300 mah 35C packs.

[bwells]

still learning but is that 29.6 volts and 6600 Mah at the motor?

[ozzie-crawl]

still learning but is that 29.6 volts and 6600 Mah at the motor?

havent ran 8s but 6s using 4 25c 3300.running 4 smaller packs can be good if there isnt a lot of room to get battrys in sponsons

[bwells]

thats 22.2 assuming you run 6s2p. How do you guys get away with that kind of voltage? do those brushless motors take any thing you can throw at them? I see you are online ozzie, It's 11:30 pm here in Calif, what time do you have in Aus.? P.S. Can you send me a Koala Bear, the wife would love one and so would I!!!

[ozzie-crawl]

its 4.35 pm here. koala is in the post
with voltage generally speaking if you run higher volts lower kv motor the less amps you draw.

[bwells]

I'm just starting to learn about brushless but volts seem like the kicker, you can only go so high before you exceed the limits of the motor, I.E don't you need a motor that can handle 30 volts when using 22.2? Thanks for the Koala, do I need to trim it"s claws?

[ozzie-crawl]

just to give you a rough idea what i mean.
take a 8xl (2084kv) on 4s with a x440 prop, would pull around 80-90 amps with a speed say around 40-45 mph
now run a 14xl (1191kv) on 6s with a x445 amps would be around 15-20 amps less but speed around the same. this may not be 100% correct but you get the idea

[NorthernBoater]

havent ran 8s but 6s using 4 25c 3300.running 4 smaller packs can be good if there isnt a lot of room to get battrys in sponsons

I also use the 3300 packs in my rigger they are the only packs that will fit.