EKOS C1 Dual Motor Upgrade!

[FighterCat57]

It's an almost bolt in job.

Two Turnigy 120A ESC's & Two HXT 36-56 2700kv Inrunners

The 540 sized motor comes with two different bolt patterns. Which allows for installtion in both 540 and 380 mounts. Leaving the EKOS mounts in-tact.

Modify the coupler for the 5mm shaft, shorten the drives about 6-8mm and it's a runner!
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BUY SOLO VAPORIZER

[FighterCat57]

Just a base, but I put the GPS on it and with a 2-3" chop hit 38.8 on 3s with 31 minutes of run time... Didn't feel any heat at all when I popped the top afterwards, so I think 4s will do just fine and pick up about 10k RPM. It's rated to 18v, so might even try 5s.

I haven't calibrated the ESC's yet and was very conservative on the throttle for the first run.

The wind picked up and there's too much chop now, so will try again in the morning. =)
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Penny stocks to watch

[pmisuinas]

What props are you using?

[FighterCat57]

What props are you using?

Just the stock plastic props.
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FORD MOTOR COMPANY

[pmisuinas]

Wow, sounds like you could pick up a lot of speed going to a larger prop, motor should take it easily--maybe the CF-40s? Anyway, I am on the Hobby King web site and of course the motors are out of stock--can't seem to find upgrade motors anywhere right now...

[Rumdog]

here ya go: http://www.offshoreelectrics.com/pro...380-xL&cat=116

[FighterCat57]

here ya go: http://www.offshoreelectrics.com/pro...380-xL&cat=116

Helz yeah. The 10xl.

If I had known I was going to be replacing motors in the EKOS and didn't already have the Inrunners ordered, I would have gone with the 10xl's. They can handle 6s.
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POT NEWS

[FighterCat57]

Wow, sounds like you could pick up a lot of speed going to a larger prop, motor should take it easily--maybe the CF-40s? Anyway, I am on the Hobby King web site and of course the motors are out of stock--can't seem to find upgrade motors anywhere right now...

Yeah, it's running really wet, I haven't adjusted anything yet.
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Mykey

[pmisuinas]

Yeah, but I was looking for the 9xl because I have a bunch of decent 4S packs. I also would not want to put the weight of dual 6S packs in this boat. But I guess the Kv difference between the 9xl and the 10xl (10%) is not that big (especially since 10xl are available now), maybe prop selection could overcome that...problem is I would have little to no idea how to pick a prop, as I am new to FE...

[FighterCat57]

Just a base, but I put the GPS on it and with a 2-3" chop hit 38.8 on 3s with 31 minutes of run time... Didn't feel any heat at all when I popped the top afterwards, so I think 4s will do just fine and pick up about 10k RPM. It's rated to 18v, so might even try 5s.

I haven't calibrated the ESC's yet and was very conservative on the throttle for the first run.

The wind picked up and there's too much chop now, so will try again in the morning. =)

OK, so it's a windy morning here at the beach, but I was able to find a small oyster bed alcove with 1-2" chop. Best I could find with a 15mph wind.

51.2 MPH peak on the GPS on two separate 4kMah 4s 20c packs. About 20 min of runtime. I'm thinking if I parallel the cell packs using higher C ratings, it'll do much better. I have some 4kmah 30c packs to try. My bigger 5k 30c's don't fit in the hull holders.

Still haven't calibrated the ESC's and wasn't able to hold the trigger for more than a 1, 2 count, then had to get off quick as it was jumping the chop against the wind. Not enough room to do speed runs with the wind as it was towards the shallows.

A little more in line with what is expected of this boat and I'm sure there's a few more MPH by tuning it right.
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Honda c71, c76, c72, c77 dream

[Igoreski]

Battery

I was looking at those Blue lipos you have because they fit great.I know your run times were long,did the battery get hot.I was holding back on those packs because of the 25c rating.

[FighterCat57]

I was looking at those Blue lipos you have because they fit great.I know your run times were long,did the battery get hot.I was holding back on those packs because of the 25c rating.

When I ran the 3s 25c packs, I didn't notice much, if any heat.
When I ran the 4s 20c packs, they did get warm, but not hot to the touch.

Next time, I'm going to run the 4s 30c packs and put them in parallel. Still haven't made my "X" connector.
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Toyota Ecom Specifications

[Brushless55]

Helz yeah. The 10xl.

If I had known I was going to be replacing motors in the EKOS and didn't already have the Inrunners ordered, I would have gone with the 10xl's. They can handle 6s.

You would not want to run 6s on the 10XLs !
that is ment for the lower kv motors

[vasy]

So you find those cheap 540 Turnigy motor work very well on both 3s and 4s?
Seems venom have a lot of melting lately, maybe a bad batch.

[FighterCat57]

You would not want to run 6s on the 10XLs !
that is ment for the lower kv motors

See post #26: http://forums.offshoreelectrics.com/...ad.php?t=13704
IDK from experience, just what I read.

So you find those cheap 540 Turnigy motor work very well on both 3s and 4s?
Seems venom have a lot of melting lately, maybe a bad batch.

The HK's seem a bit slow on 3s, but really come alive on 4s.... And so far, much more reliable than the motors that came with it.

Wait a few days, I'll run a few battery packs through it and tell you more.
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Extreme Vaporizer