Twin HOTR Options, need help from you smart people!

[blackcat26]

Those rpm's will be fine and give you the speeds you are looking for.

[LarrysDrifter]

36x74's do sound tasty.I can believe I didnt look at the Leopards before I ordered the Arcs.I have 2 Leopard 40x82's in 1500kv and love em.I think you can get low 60's out of it easy.To me,reliability is what its about.My EKOS went 66mph and ruined the hull.Wont go down that road again without reinforcement.Hopefully my cat from Ben gets here tomorrow so I can stink up the garage with FG.

[Diesel6401]

36x74's do sound tasty.I can believe I didnt look at the Leopards before I ordered the Arcs.I have 2 Leopard 40x82's in 1500kv and love em.I think you can get low 60's out of it easy.To me,reliability is what its about.My EKOS went 66mph and ruined the hull.Wont go down that road again without reinforcement.Hopefully my cat from Ben gets here tomorrow so I can stink up the garage with FG.

Would cc1512s fit in the sponsons? I have one in the garage and thought about ordering another one before they sell out.

[LarrysDrifter]

Im not sure.Are they the same diameter as a 1515?If so,I have a Neu 1515 and it wouldnt fit the EKOS with the jacket.Order one more 1512 and get a Genesis from FighterCat and I know they will fit there.

[Diesel6401]

Im not sure.Are they the same diameter as a 1515?If so,I have a Neu 1515 and it wouldnt fit the EKOS with the jacket.Order one more 1512 and get a Genesis from FighterCat and I know they will fit there.

Yea they are same dia just shorter. Thanks, I was just curious.

[tiqueman]

Im only 1600 rpm more than what your expecting D. Mid low/ mid 60s should be no problem at all. And FYI, Im pulling about 90A peak. 442s detounged and tip cupped by egneg

[Diesel6401]

Im only 1600 rpm more than what your expecting D. Mid low/ mid 60s should be no problem at all. And FYI, Im pulling about 90A peak. 442s detounged and tip cupped by egneg

Hey thanks, my 120s should be fine then. I'm thinking about getting chuck to do mine for me soon as my rc cash flow builds up. I'm gonna grab some cf props to get me in the water though. I'm not use to buying doubles lol. And a eagle tree is on my list of goods!

[LarrysDrifter]

Im only 1600 rpm more than what your expecting D. Mid low/ mid 60s should be no problem at all. And FYI, Im pulling about 90A peak. 442s detounged and tip cupped by egneg

Do twin drives benfit from detounging and tip cupping?Ive heard its good for a hydro and rigger but havent heard anything about twins.

[tiqueman]

I ran only a sharpened and balanced set one time before I put the new props on. I never gpsd it w/ the original 442s. It runds great, has too much hole shot so I would imagine it would be even more w/ out the detongue. Cupped.. Id also imagine it helped... its helped all my other boats Ive tried it on. plus, now you motors are working a lot less being twin, so you can throw more at it

[Diesel6401]

Diesel Diesel Diesel.. Dont you remember my twin HOTR build thread.. Cmon man.. I thought you were better than that...

http://forums.offshoreelectrics.com/...ad.php?t=13290

Twin 540s, 10XL, 6S, just over 70mph.


EDIT, oh theres more... I got excited and posted too soon... Mine is wired as Blackcats, 2-3S, seriesed to 6, the paralleled out to the EScs, BUT, if you run 4S or even 3S per motor, obviously theres enough room so run it to each seperately so youll get a longer run time. I actually just purchased two 4S 4000mah 40C packs that will just fit under the deck lip that Im going to run mine on. 70 is cool, but for the 1:30 sec saw runs, it will be alot more fun a little slower. My test runs will be this weekend on the new power provided the weather holds up.

What packs did you get? I think I am going to be screwed, the only packs I have for 5s is a 2s/3s 4000mah 40C turnigy. I don't think my packs are gonna put out enough amps, I would love to run 2x 5s in parallel but they just might not fit. The 3s 6000mah 25-50c nano-techs are in stock, but the 2s 6000mah aren't any other options? Are the rhino's pretty thin? Leaning towards 3674 1900kv leopard as well.

[Diesel6401]

Well I got the boat yesterday. Def needs some work. Still had the square drive portion of the flex stuck in the stingers. I removed those as well as the stuffing tube. 1 off the water tubes epoxy broke loose as well. I accomplised that yesterday, today at work (instead of working ) I pulled the stingers out and removed the 4mm bushings and replaced them with some aeromarine 3/16 bushings. I was able to pull the outer bushing out with a easy out, then pounded the other bushings with a punch. I drilled out the stingers with a 1/4 bit and pressed the new bushings in. Not much room to drill in those things and you have to drill SUPER straight. You can see how big the new bushing is, the stock system came with 2 4mm bushings installed, i just installed 1 of the new bushings. I think it should be ok considering both old bushings are as long as one of my new ones. I will use the MG flexcables 1 cw, 1 ccw, thank you Proboat and HH!

[LarrysDrifter]

Looking good,Deisel.Where do you buy the Aeromarine bushings?Thinking about converting mine to 3/16 too.As far as batteries go,I have 2 Turnigy 4s 5000mah packs that fit snug in my EKOS sponsons.I dont know the dimensions,but maybe you can look on HK and compare mine to your 5s and you would have a better idea.I had to lay the batts on the floor,then slide them under the deck,then down into the sponsons.It worked good and kept the wieght lower than just laying them on the floor.

[Diesel6401]

I think these are the ones I ordered http://www.aeromarinerc.com/index.ph...mart&Itemid=53, I want to run my esc's in the sponsons and batts on the floor. I think thats how tiq laid his out. I think he pointed me to the bushings a long time ago as well.

[Diesel6401]

Anyone ever try twin typhoon 1800kv outrunners?

[blackcat26]

Diesel, I think that the Typoons will be pretty under powered for that size hull.