New Genesis Setup?

[viper1]

Ive been doing a fair bit of reading on here and have come to the conclusion that ESC and motor temps are the biggest problem.
Im not real keen on the idea of cooling system running from motor mount to the motor and then the ESC. Wouldn't it be better to have a pickup for each? Although it may not be necessary on the stock setup, Id prefer to do it now before I run the boat then Id have everything sorted for when I decide to upgrade motors.

G'day,
I'm only a few months ahead of where you are now, but had the same thoughts. I added an extra double pickup (the alu-block type). these are both running through my 180 Hk/seaking ESC. The original pick-up goes to mount and motor. If I had to do it again I would add the same thing, but then the single version as it was hard to fit the pickup block between the strakes on the sponsoon, I had to modify it a bit. Single would be sufficient for me. Or you could do two single ones spread apart.
I think it did add some redundancy to the system, see this thread
What if it was the only pick-up? hope i'll never find out.

Dave can give you good advice though, he helped me heaps with my set-up.

[TristanJones]

G'day,
I'm only a few months ahead of where you are now, but had the same thoughts. I added an extra double pickup (the alu-block type). these are both running through my 180 Hk/seaking ESC. The original pick-up goes to mount and motor. If I had to do it again I would add the same thing, but then the single version as it was hard to fit the pickup block between the strakes on the sponsoon, I had to modify it a bit. Single would be sufficient for me. Or you could do two single ones spread apart.
I think it did add some redundancy to the system, see this thread
What if it was the only pick-up? hope i'll never find out.

Dave can give you good advice though, he helped me heaps with my set-up.

Thankyou for your input, I like that idea also.
I can see this getting involved
RE: testing, calc of req volume ETC.
I enjoy finding the limits of parts and testing durability.
Anyhow, the more input the better!!
Thanks again.

[TristanJones]

That pic made me think too.... there is a lip on mine, I see you have sanded back that area.... less drag.

[viper1]

Yeah,
The sharper and flatter the better, I only did the ones half way the hull backwards, not sure if the front ones would make a difference at full speed. would like to make them really sharp by adding material, maybe later.

[1945dave]

Thanks for the reply mate, I will be upgrading the motor/motors once Ive had a bit o a play around with the stock motors and try and get my head around how to set these things up.
Ive been doing a fair bit of reading on here and have come to the conclusion that ESC and motor temps are the biggest problem.
Im not real keen on the idea of cooling system running from motor mount to the motor and then the ESC. Wouldn't it be better to have a pickup for each? Although it may not be necessary on the stock setup, Id prefer to do it now before I run the boat then Id have everything sorted for when I decide to upgrade motors.

There is nothing wrong with your logic. You seem like a guy with a plan for the long term and I hope you stay with that focus and drive. I would agree with Viper that two single style water pickups may be close to ideal and would address the concern for maximum water flow. However, please understand this. Yes, heat is our number one enemy. Extra water flow does not address the main issue with high heat situations. The main issue is exceeding the normal operating limits in component selection. If someone insist on feeding a high KV rated motor with more battery power than suggested by the manufacturer then high heat can be the expected result. In this case increasing water flow will not fix the problem, though it will help to some degree. For example the stock motor for the Genesis is a 3674 2075KV rated motor. By design this is a 4S battery motor. If someone desides to use 6S power to this setup more heat will be generated by higher current demands and more cooling flow will reduce the readings with a thermometer but the higher than designed amperage current will still put the electronics at risk of failure. What I am saying here is that temps are a concern but not the only concern. Using too large a propeller will produce the same high heat situation which is not fixed by increasing water flow.

Dave

[TristanJones]

Thankyou.

[SirBudman32]

I used two of these in my Genesis. One on each side to balance out and simple to install. Just drill a hull drop in and put some epoxy around it. Used 1 for the motor and 1 for the esc.

http://kintecracing.com/images/tfl_521b20.jpg

[TristanJones]

nicely nicely Sirbudman.
cheers again

temps were?

[SirBudman32]

I ran a CC1515 2200 with a T-180 on 2 5s 5000 batteries turning a m445 In Genesis running mid 50s. warmest was 110.

[TristanJones]

ambients??

[HYDROJERRY]

I did the same as Sirbudman only differance was instead of buying the water pickups i had a old proboat esc that was blown and removed the nipples and cut the ends at and angle, did it in my old twin,,

[scott_genesis]

G'day,
I'm only a few months ahead of where you are now, but had the same thoughts. I added an extra double pickup (the alu-block type). these are both running through my 180 Hk/seaking ESC. The original pick-up goes to mount and motor. If I had to do it again I would add the same thing, but then the single version as it was hard to fit the pickup block between the strakes on the sponsoon, I had to modify it a bit. Single would be sufficient for me. Or you could do two single ones spread apart.
I think it did add some redundancy to the system, see this thread
What if it was the only pick-up? hope i'll never find out.

Dave can give you good advice though, he helped me heaps with my set-up.

Sorry to hijack this thread (im in the midst of a Genesis build very similar to this) would this pickup be sufficient to run both the motor / esc (one pick up each) OR leave the rudder pick up for motor / and this pick up for esc???

PS.. Keeping close eyes on this build.. Have given me a heap of tips also

[HYDROJERRY]

you realy only need one pickup to run to all but if you want extra cooling then i would recomend one pickup to each item, one to esc and one to the motor and mount,,, so id recomend you use the rudder pickup and add one single pickup in the hull floor not a daul plus the daul pickup requires a bigger cut in the floor..

[scott_genesis]

Thanks hydrojerry, i already have the dual pick up assy, so i will be using this either way.. Cheers..

[viper1]

" If you look for a better cooling solution, look in your prop box"

Not my quote, but was posted around here somewhere, and I think smart advice.
Also I found that -when you push your system near the limit- that 1mm up or down in the strut setting (depth of prop) makes an enormous difference in temperature of the motor.