set-up advise for tunnel hull

[dana]

awesome! i just ordered the octura standoffs from ose with some 1/2 stainless screws. i'll mount those to the transom....then remount the whole motor mount assembly to those. ill post pics when i get the parts all fitted. should work ok i think

[dana]

ok so i mounted the outboard further back using octura stand-offs. also added dedicated cooling line for esc

[HOTWATER]

That is much more where you need to be IMO...looks good Dana!! Now let her rip and see how things go! I also like the water cooling! If the ESC gets too hot you can always go with a 437/3...I like the three bladed props on that tunnel...always worked for me....

[dana]

ok so i ran it today. much more stable, still hops in the turns a lil. one thing i noticed is the batteries were hot. like between 130 and 140 degrees. its 45 here in massachusettes and the water is COLD. the motor and esc were fine. where to go from here..... smaller prop?

[Flying Scotsman]

Try an X642, modified by Chuck (egneg)

Douggie

[Doby]

ok so i ran it today. much more stable, still hops in the turns a lil. one thing i noticed is the batteries were hot. like between 130 and 140 degrees. its 45 here in massachusettes and the water is COLD. the motor and esc were fine. where to go from here..... smaller prop?

What betteries/ C rating are you using?

[HOTWATER]

Nice Dana! Glad it is working out!! Yes.....prop change. I used to run a 437/3 on my nitro (it's pretty much equals out to using a 440 2 blade i believe)....you could also go with Douggies suggestion (442 reduced ?)....egneg is a good guy and does nice work....

Thanks for the updates on your progress so far....keep us posted!!!

-Kent

[dana]

doug, what kind of mod? Doby, they're venom 20-30c 2s 5400. they always run hot in my ul-1 too. not enough juice? Kent, yeah im thinking something smaller, i have 40/52/3 grim prop i can throw on there. it's a bit smaller.... i'll start there. i love the 440/2 on my sv but i sold it for some reason. was my favorite prop. i'm gonna purchase another one. try that too

[Flying Scotsman]

Those are cheap batteries and not very good quality...on the mod send Chuck a pm.

Douggie

[dana]

Those are cheap batteries and not very good quality...on the mod send Chuck a pm.

Douggie

yes i have noticed they arent the greatest quality... over the winter i will pick up some new ones. Im thinking a higher C rating would be better...

[HOTWATER]

If $ allows...go for Hyperion 35C 5000's....they will run much cooler.....Good lipos!

[dana]

If $ allows...go for Hyperion 35C 5000's....they will run much cooler.....Good lipos!

yes those are good, but will i have to change the tap? my balancer uses jst taps

[Doby]

I use 30C 5800 4S Trnigys in my P spec tunnel and they have held up well this season. I suspect that The Venoms aren't up to the task.

[HOTWATER]

you can find adapters here...also good place to get your batts! 10% off for RC guys + free shipping!

Scroll down to the bottom of the page and it will tell you what taps are on what lipos...

---> http://rclipos.com/Accessories.htm#PQALAdapters