37" Genesis Build

[dddmx3]

NICE !!! That would make that Genesis scream!!

Would if I go with the leopard 4082s instead? This video is so tempting... http://www.youtube.com/watch?v=sK_VYTokzLQ

[kevinpratt823]

Would if I go with the leopard 4082s instead? This video is so tempting... http://www.youtube.com/watch?v=sK_VYTokzLQ

If you watch the video through to the end, you will find out what likely happens if you run a setup that extreme. The driveline self destructs and tears the boat up. That is 2 motors turning about 48,000 rpms on 6s, they are more appropriate for 4s.

[h2o 1]

I agree! not only that,you would have a severe weight issue with those big motors and the lipo's needed to feed them. The 36/74's should do just fine.

[jkr]

Also you have to reinforce it.
For me you can use Leopard 3665/3D 2680kv on 4s with seaking 120A esc.

[dddmx3]

Ok. I figured the coupler or whatever was just loose. So you guys are saying my setup will be pretty fast? I've built rc brushless boats before just never fully understood the electronics part.

[h2o 1]

Define Fast...When i started this hobby speed was everything! Once i got over 55 mph, i found myself paddling more to get my boat instead of driving it.

[jkr]

How fast you want to go?

[dddmx3]

Define Fast...When i started this hobby speed was everything! Once i got over 55 mph, i found myself paddling more to get my boat instead of driving it.

How fast you want to go?

Well I got my 32 inch cat to about 50. Maybe 60-70 mph with this one?

[jkr]

Hmm
You can spin a pair 45mm with Leo 3674 2650kv but probably a pair of 3665 2680kv will get you there.
You see it isn't only what motor to use...weight ratio is a big factor.

[dddmx3]

Hmm
You can spin a pair 45mm with Leo 3674 2650kv but probably a pair of 3665 2680kv will get you there.
You see it isn't only what motor to use...weight ratio is a big factor.

The 3665s.. With what kind of battery supply?

[jkr]

4s or 3674 2650kv on 4s also

[dddmx3]

4s or 3674 2650kv on 4s also

I'll just go with the 3674 2650 on 4s. Wait.. It's technically called 4s2p right?

Just finished painting the hull today, will post some pictures after I reinforce the inside of the hull.

[dogg]

I'll just go with the 3674 2650 on 4s. Wait.. It's technically called 4s2p right?

Just finished painting the hull today, will post some pictures after I reinforce the inside of the hull.

4s 2p is only if you buy a 4s 2p battery. If you buy a 4s battery, you will not be running them in (2p) parallel as if you were running a single motor. To do so you would be running 4 battery packs which is way too heavy.

I would assume that you will run a 4s battery PER MOTOR/ESC (or as mentioned above you could run a 4s 2p in one single battery pack) per motor. Beware though, you may not fit the 4s 2p packs in the hull - someone with a genesis twin will need to varify this as I have a genesis single and they wouldnt fit in the sponsons from my reckoning, however you may fit them as they will be positioned in the centre of the hull for your application.

[dddmx3]

4s 2p is only if you buy a 4s 2p battery. If you buy a 4s battery, you will not be running them in (2p) parallel as if you were running a single motor. To do so you would be running 4 battery packs which is way too heavy.

I would assume that you will run a 4s battery PER MOTOR/ESC

Oh I was wrong. I figured the 2p standed for 2 packs or something. I will be running a 4s lipo to each esc. Sorry for the confusion.

[dddmx3]

So you guys all agree the Leopard 3674 2650kv with either turnigy 180a or swordfish 200+ with a 4s lipo to each esc will be a good and fast setup?

I will be ordering soon