55" Cat, 5692, 10s and an 80 amp ESC.............!!!???

[Make-a-Wake]

Yep, he's running a 60 dollar Turnigy 80a HV speedo...................... Close up of it at 1:05

AND IT WORKS....................

[bill34207]

I have a feeling that "success" could be subject to change with a good wide open pass that lasted more than a couple of seconds.

[ray schrauwen]

It's light at 10s1P but, yes, smoker on the water with longer runs or larger prop or 12S...

Hey, Ben @ Fcat has 16S 200A esc's on close out for $126 !! I snagged one and had it sent to my bro's.

[sunexim]

Nice video with a good boat ..love it!!

[srislash]

It's light at 10s1P but, yes, smoker on the water with longer runs or larger prop or 12S...

Hey, Ben @ Fcat has 16S 200A esc's on close out for $126 !! I snagged one and had it sent to my bro's.

You sure that is $126?

[ray schrauwen]

If you are logged in, it is the second marine esc from the top. It says $126.xx So, yes i'm sure... If I had another $140 to get one to me I'd have it in a heart beat.

[Fluid]

I find it funny that guys think this is a terrible setup, and that a longer run would automatically be harder on the equipment. Assuming he is pulling 80 amps, that's almost 4 horsepower, more than a lot of gas engines that are run in similar hulls. With the 540Kv motor it has plenty of torque and not too much rpm for the large prop. With the prop jacked up high enough, he may be just fine with the 80A speedy. Four horsepower guys. High volts is a good way to go for sport running - low amps, low heat, long run time.

All the acceleration from a dead stop and the part throttle running is the hardest possible running on the ESC. Longer full throttle runs would be easier on the ESC than all the short high-amp bursts. What we really need to see is how it handles longer run times. If he drove it correctly that may be a pretty decent sport setup... although I'd go for a 120 amp ESC to have more head room.



.

[keithbradley]

I ran an 80A speedo in my 32" cat and it worked well. I know it's a lot smaller boat, but I was spinning the prop at about 40k, so it was still effectively a fairly heavy load. It ran fast and had unbelievable run times.

I have another project coming up where I will be again using an 80A speedo. I have a FC Cheetah hull on the way that will be getting a single 4092/540kv to run on 4x 4s/2650mah lipos in series.

I like conventional setups as much as the next guy, but I'll always pursue somewhat unconventional projects. There is a lot to be gained by doing something different...it's teh only way anything ever advances/evolves.

[lenny]

Hi,
Would a 120a esc work on a 8s or 10s with a 5692 540kv or 730kv ?
I still need a esc for my 48"Stealth mono and now you got me thinking.

I find it funny that guys think this is a terrible setup, and that a longer run would automatically be harder on the equipment. Assuming he is pulling 80 amps, that's almost 4 horsepower, more than a lot of gas engines that are run in similar hulls. With the 540Kv motor it has plenty of torque and not too much rpm for the large prop. With the prop jacked up high enough, he may be just fine with the 80A speedy. Four horsepower guys. High volts is a good way to go for sport running - low amps, low heat, long run time.

All the acceleration from a dead stop and the part throttle running is the hardest possible running on the ESC. Longer full throttle runs would be easier on the ESC than all the short high-amp bursts. What we really need to see is how it handles longer run times. If he drove it correctly that may be a pretty decent sport setup... although I'd go for a 120 amp ESC to have more head room.



.

[Make-a-Wake]

This new 130a HV should work!

http://www.offshoreelectrics.com/pro...-seaking-130HV

[lenny]

That the first time I saw that,
Thanks.

[Espresso]

So wait, a 8S1P or 2P setup with 5692 730KV motor can push a 50" mono or cat through the water using 120-200A ESC? Mono's tend to have a lot more drag than a cat or hydro so what speeds are would it be capable of? How reliable would this setup be for a mono with a 200A setup for sport running?

[lenny]

I with the lower amp esc you just need to handle the throttle more efficiently,
And I think speeds would be the same, Just no rabbit take off.
Kinda like driving a big new cadillac.

[keithbradley]

So wait, a 8S1P or 2P setup with 5692 730KV motor can push a 50" mono or cat through the water using 120-200A ESC? Mono's tend to have a lot more drag than a cat or hydro so what speeds are would it be capable of? How reliable would this setup be for a mono with a 200A setup for sport running?

I would run that motor on 10s-12s. A 200A ESC would work well if it's HV.