5692 Leopard in Genesis?

[izcain]

Does anyone out there have a 5692 Leopard in their Genesis or Fightercat hull? I am thinking about putting one in with an esc that could keep up. If done which setup would you guys recommend for an all out speed setup? Not concerned about runtime or anything else. Just how fast we could make it go.

Or would I be better going with a smaller motor and pushing it instead?

[znus]

I think you'd have a hard time fitting the canopy over that coke-can. Not to mention the prop it could handle would torqueroll the hull beyond driveability. For all out speed I'd go with some freaky Lehner and push it to 60-70k rpm (and keep the propsize at 42-45 mm, max). It wont be economical at all

[jcald2000]

Znus, I hope your recommendations were a joke because that is dangerous.

[jkr]

The 5692 is way too heavy big.
Try http://www.hobbyking.com/hobbyking/s...dProduct=19111 on 12s or leopard 4082 2200kv 5s.

[drwayne]

I think you'd have a hard time fitting the canopy over that coke-can. Not to mention the prop it could handle would torqueroll the hull beyond driveability. For all out speed I'd go with some freaky Lehner and push it to 60-70k rpm (and keep the propsize at 42-45 mm, max). It wont be economical at all

No, 5698 simply wont fit
Twin 2250/5's on 6S to x442 is fine for experienced 'extreme' fe people. but would kill a newb 8(

4074/2200 on 4S x447 is a ripper for starters.

[martin]

Apart from the pyshical sizes of everything you need to run a 56 series motor & the weight are not suited to the Genesis, its also to narrow a hull. With the size props you would use on this motor & the torque it produces you will just torque roll the boat.

[iamandrew]

yeah and not to mention its highly likely to roll as soon as it gets off center

[izcain]

Right now I have a CF Fightercar Daytona w/ 4082 1600kv on 6s and it runs ok temps are super cool. I am proping up right now so I will see what speed that nets me before I change setups to something more.
Looking to either progress my Daytona or put hardware into another Genesis I have to build an SAW setup.

How fast have people gotten a single drive setup to go on one of these hulls?

What would you guys recommend then for a motor for an SAW type setup? Just trying to get some ideas before ordering.

[znus]

Znus, I hope your recommendations were a joke because that is dangerous.

No, not joking. Surely not for everybody but it's definitely doable if you have the $$

http://www.lehner-motoren.com/about-us/

[Doby]

Will not fit under the cowl...run without the cowl and it will fit fine. I have both.....

[Rumdog]

lol

[martin]

Theirs an entire build & run thread on this forum for the Genesis with several vids of the boat running by Howard Lee. He used a Leopard 4082 1600kv motor on 9s & from memory i seem to remember he touched 100mph but this is purley for SAW runs. Single motor by the way.

[jcald2000]

Znus, we all like to push the limits but your recommendation can KILL someone. There was a post years ago when SAW's were really hot that showed the damage one blade breaking off at 45,000 rpm can do along with data showing it equaled a 32 cal. bullet.
I wonder what that blade at 60,000 rpm would equal??

[znus]

Znus, we all like to push the limits but your recommendation can KILL someone. There was a post years ago when SAW's were really hot that showed the damage one blade breaking off at 45,000 rpm can do along with data showing it equaled a 32 cal. bullet.
I wonder what that blade at 60,000 rpm would equal??

Yes jcald, but that is a worst case scenario. Likewise a faulty lipo could burn your house and the whole neighbourhood down.

I wouldn't wanna be hit by a propblade from a 45k or 60k rpm spinning prop and I wouldn't wanna be hit by a (bigger, heavier) propblade from a more modest 30k rpm spinning prop.

Most of us aim for the 50-60's, wouldn't you agree? Lest say your Tx & Rx suddenly goes down, you lose control of the boat and the esc just gives it all (like in the case of the CC Hydra 240). At that speed the 6 pound boat going 60 mph easily could beat somebody up pretty good, maybe even kill them? Worst case scenarios.

Izcain, the original poster, wants to go really fast, use his Genesis hull and two 1950 Lehners are an option for doing just that. If he wants to spend $1000 on two motors and spin them at warp speed (with another couple of thousand bucks in esc's and lipos) it's up to him. I bet if you're willing to spend that amount you're really serious about your hobby.

[ozzie-crawl]

Hmm i am just getting back into boats after a couple years off and have noticed all these guys running super high RPM setups.

A guy on another forum asked me for a setup on the same hull (pm on different forum)
I hope my reply to him was correct so i will ask your guys views.
I was under they impression we stick around 25,000-35,000 rpm as props were originally designed for nitro and that is the typical rpm range for those motors.
I guess there is a few other dynamics that come into play as well.
Just because someone is running 55mph on 6s with this motor xxx and this prop xxx does not mean you can just throw it on 8s and get 70+ mph.
this seems to be the thoughts of some.
Few years back i tried running fairly high rpm,s but found there was a very very narrow window of what prop would work.
After looking at some off the race guys setups (ones i could find) a lot seemed to be running under 30,000rpm.
So i dropped under the 30,000 rpm and found a larger rang of props worked and a few tweaks to the prop netted some decent gains. Also my speeds increased,temps dropped and longer run time.
But maybe things have changed ???

Ozzie