SeaKing 120 esc

[Jeff Wohlt]

The props are not too big unless it hopped and maybe twisted hard. Are you running teflon or not? It could have worn a bad spot thru the wire if you had no teflon.

[LarrysDrifter]

The props are not too big unless it hopped and maybe twisted hard. Are you running teflon or not? It could have worn a bad spot thru the wire if you had no teflon.

I just started fixing the hull today.Been missing the EKOS.The water was glass smooth and it definitly didnt hop.I took off gradually and ran it up to speed.After the going air borne,it landed upright and thats when I noticed it leaning to one side as I drove it.The wire broke pretty much in the middle between the prop shaft and end of the wire.(motor end).I did have the stock teflon in the stuffing tubes.The teflon looks fine too.

[LarrysDrifter]

Jeff,do you make a .078 wire for the EKOS with a 4mm stub shaft?Figure that ll be stronger than the .062.

[Jeff Wohlt]

Sure do. Just odd it snapped there.

[Skullcracken]

EKOS on 9xl's

Just a hair wet once.But its been wet before with the stuffing tubes leaking.Nothing has been soaked though.I set it in the garage with a fan blowing on it since last nite.Should be ok.And I bought the speedos that came with the programming card too.They have 10 or 12 tuning options on them but they will only let me do 4.At least I can set the low voltage cut off.Thanks for your suggestions earlier.It really hauls a@@ now with the 9xl's.Got it to 50.1 so far on 4s with the 36mm props.Hopefully I can tune the stingers and get a bit more speed out of it.I also got the Octura collets and wire drives from Jeff too.Such a better setup from stock.

Hey man. What KV are your 9xl's. I want to run 4s each to my 9xl's but mine are 2600 kv. Is that going to be too much max RPM? Im getting 42 mph with 3s to each now, gotta break 50 with this thing.

[LarrysDrifter]

2612kv.Not too much rpm.You can go a little higher than 30,000rpm with twins.

[Skullcracken]

Another question...

2612kv.Not too much rpm.You can go a little higher than 30,000rpm with twins.

I see everyone using 120 amp esc's. Why is that needed? The reason I ask is, a blackjack 26 can run 4s on the stock setup with a 45 amp esc. Or the EKOS P1 can run 4s with a 60 amp stock esc and stock motor. Why is 120 needed on the 9xl's or the ammo motors?

[forescott]

The blackjack has a 1500kv motor which will pull less amps than the higher kv 380xl's. Actually the 120amp esc's with the feigao 380-xl's is probably overkill. An 80-90 amp esc would be sufficient. Only reason I got em is because the price difference between the 90 and 120 was small, so I got the 120's instead.

[LarrysDrifter]

The blackjack has a 1500kv motor which will pull less amps than the higher kv 380xl's. Actually the 120amp esc's with the feigao 380-xl's is probably overkill. An 80-90 amp esc would be sufficient. Only reason I got em is because the price difference between the 90 and 120 was small, so I got the 120's instead.

Plus,you can use the 120's in something else that will require a 120amp.My opinion,I like going over board on the amp rating with the esc.Dont really know why,just makes me more comfortable I guess.And my EKOS will be running again very soon.I have the hull patched up,just have to re-mount the components.Ill post pics soon.

[Skullcracken]

ESC for 9xl's

Thanks. I assumed the lower kv of the motor was the big difference, I just didn't get why an esc over double the amps was needed. Thats good to know I have two 85 amp escs in the ekos. Im going to try out 4s's today. Do the 9xl's have a higher max rpm? I always hear 35,000. Seems like I might have needed the 10xl's.

[forescott]

Either motor works great on 4s. As long as your using the right prop. 9xl is 2612kv and the 10xl is 2352kv. cf-40's on the 9xl's and x442's on the 10xl's. JMO!

[forescott]

I use 32mm red venom props for cool/sport running on 4s. Still get upper 40's on them

[Skullcracken]

Either motor works great on 4s. As long as your using the right prop. 9xl is 2612kv and the 10xl is 2352kv. cf-40's on the 9xl's and x442's on the 10xl's. JMO!

Are the cf-40's sold on OSE? 3 blade or 2 blade? I am using the stock 36 mm props with the 9xl's. So would cf-40's get me more speed? Ran a little hot on 4s with stock props but hit 48mph.

[forescott]

Oh boy... Yah get rid of those stock plastic props! The cf-40's will make a huuuuuge difference! OSE sells em. Don't forget 1-standard and 1-counter rotation.

[forescott]

Heres the links for the props. And they are in stock!! I get over 60mph w/cf-40s and my 9xl's.

http://www.offshoreelectrics.com/pro...od=grp-2317.40

http://www.offshoreelectrics.com/pro...d=grp-2317.40L