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MarcusOz
07-31-2010, 05:40 PM
Hi All

I just got a 37" Genesis Cat that shipped with the following motor:

FSD F540-3674 KV:2075

My query is can i run this with the series battery setup i have for my SV27.

2 x 5000mah 7.4V 20C LiPo's

Any ideas ???

Thanks

Rumdog
07-31-2010, 05:49 PM
Yes. Keep an eye on the esc though. I'd run a ubec, or rx pack and unhook thr red receiver wire from the esc.

MarcusOz
07-31-2010, 06:33 PM
It has a Seaking 120A programmable ESC

I should get the programming card in a couple of days.

forescott
07-31-2010, 11:14 PM
You can easily program that esc from your receiver if youd like.

MarcusOz
08-01-2010, 12:49 AM
sorry

i'm new to the whole LiPo and brushless technology.

these are the first ones i've had only used NiMh packs up until now.

what do you mean when you said keep an eye on that ESC.

is it a poor quality one ???

i just got the ESC card because i didnt realise it could be done any other way.

forescott
08-01-2010, 12:05 PM
I think rum meant that when running 4s or better, sometimes the esc's b.e.c. can be unreliable. I however have run many of the seaking/turnigy esc's on 4s with no problems. Its up to you. I can try and post a page from mt ekos manual that explains the programming for the esc a little later.

FighterCat57
08-01-2010, 01:04 PM
I think rum meant that when running 4s or better, sometimes the esc's b.e.c. can be unreliable. I however have run many of the seaking/turnigy esc's on 4s with no problems. Its up to you. I can try and post a page from mt ekos manual that explains the programming for the esc a little later.

+1

The BEC on the ESC also creates quite a bit of added heat for the ESC. After watching a new Turnigy 120a ESC burn up due to the BEC overheating, I stopped using the built in BEC's. I use the Turnigy SBEC's, they are about $6 and have worked well for me. I wire the power into the battery power connectors on the ESC, so no need for extra battery. It just keeps the BEC heat separate from the ESC in my case.

Hope this helps, good luck!

FWIW- the Genesis should reach ~42mph stock on 4s and run well. :thumbup1:

MarcusOz
08-01-2010, 06:44 PM
Hi Guys

Thanks for the info

I had no idea that the built in BEC could cause issues

I have ordered a couple of :

Turnigy 5A (8-26v) SBEC for Lipo

One for my SV27 as well

For the sake of a few dollars its not worth risking the ESC

Nice Blog FighterCat i was really interested in the hatch seal for the Genesis.

Wanna do that with mine so no tape needed.

HYDROJERRY
08-01-2010, 08:57 PM
:iagree: i also wanna do that and i ran mine today on 2x2s5000lipos and it ran good but the motor gets hot like 133 but everything else seams ok maybe yours will be cooler check out my vidon the thread GENESIS CAT..:rockon2:

MarcusOz
08-01-2010, 09:15 PM
Hey HydroJerry

Do you think theres enough water going through the cooling system.

Would it be worth adding another pickup somewhere.

I've only just got my LiPo packs and stuff so i've not run mine yet.

I was worried that this motor would overload the packs.

But sounds like its all good.

HYDROJERRY
08-01-2010, 10:52 PM
I was just on rcgroups and one of the guys saw my vid there and noticed that on one of my passes i got close to the shore and threw up alittle mud (he says) and may have clogged my water pickup so no dont think it needs more but you will probly have to do the motor timming yourself so get the turnigy program card its like 10.00, you will love it,,,i didnt want to change everything in mine just run factory stuff so if you watch my vid you will see what your infor going stock on two 2s 5000 lipos,, i havent changed anything on mine...

MarcusOz
08-01-2010, 11:09 PM
Yeah i saw the vid, perhaps it did get blocked by something.

I'll post some photo's of the setup i got with mine tonight after work.

I know it has a 120A Seaking ESC can't remember motor specs but i'll check.

It seems well made and obviously goes pretty good so i'm happy.

MarcusOz
08-02-2010, 07:20 AM
This is a photo of my Genesis with the stock gear i got with it.

The ESC is a 120A seaking, and motor is a FSD F540-3674 KV:2075

http://gallery.offshoreelectrics.com/displayimage.php?pos=-665

What sort of prop would be good on it ???

This is a photo of both my boats

http://gallery.offshoreelectrics.com/displayimage.php?pos=-664

Ignacio
03-05-2011, 07:04 PM
Hy Guys,

I just received my Genesis yesterday and tried it today using 3S 2P 2200 120A ESC.
The boat run Ok, but the batteries where burning.

So one idea was to use 3S bateries in line in order to get 6S nad reduce the current during usage.

Does anybody knows if the stock engine will support 24Volts of the 6S.

I bought 2 3S 4000mA 45C, to reduce the problem, but I would like to run it in 6S.

What do you think?

Thank

Ignacio

dano1
03-05-2011, 07:08 PM
i got 53mph with the stock motor on 4s with a x642 prop

dano1
03-05-2011, 07:10 PM
i was told not to run 6s for no longer than a couple passes....never did it, didnt wanna toast anything

Ignacio
03-05-2011, 07:32 PM
Hy Dano,

Thanks for the reply.
is 4S ok?

Thanks

Ignacio

6sHyper
03-05-2011, 08:29 PM
yes 4s is ok for that motor, your gonna wanna use packs of 30c or greater continous discharge and preferably 4000-5000mah. 6s will burn that motor up!!

dano1
03-05-2011, 09:03 PM
Yes, its fine to run those packs, thats what i got my 53mph passes from but i was running some heavy 8000 packs, waste of money, 5000 packs are best for the bang, how big is your esc? Im running a 180 amp seaking

HYDROJERRY
03-06-2011, 09:00 AM
I run mine on 2x 2s 40c 5000 lipos,, things get hot but not overly hot..but that was after about an 5min run in the middle of summer..PS mine is all factory with about a 442 size prop..

Jeff Wohlt
03-06-2011, 10:36 AM
Really too small of motors for that large of hull. The 4074 or 4082s are the way to go. You need the torque and power which will run faster, more effic and cooler. Even a nice outrunner like the T600 would be much better and run 6S and a 45-52mm prop. Also much easier on the ESC.

dano1
03-06-2011, 10:46 AM
im running a x642

FighterCat57
03-06-2011, 11:14 AM
Really too small of motors for that large of hull. The 4074 or 4082s are the way to go. You need the torque and power which will run faster, more effic and cooler. Even a nice outrunner like the T600 would be much better and run 6S and a 45-52mm prop. Also much easier on the ESC.

+1

The fastest Genesis upgrade is the Leopard 40mm 74 or 82 motor. Smaller props with higher RPM tend to work well on the cats. 642 is a good one for example.


I think somebody sells the 40 motor tail ring by itself too. Or can just get the whole 40mm mount for a few bucks.


Somebody told me that a 42mm tail ring will be available shortly to adapt the castle motors like 1518, 1520 and 1515 to the Genesis. :spy: