Will 6 cells car motor push a Miss LLumar?

[himmelman]

Hi,

I've been very disappointed with my Miss Llumar nitro hydro. The engine screams away with an X432, X435, or Y535 but never gets on plane, just a lot of noise. The engine stalls at least once during every run - I've had Kyosho nitros before and never had a problem.

Do you think I could get the boat to plane out with a 6 cell car motor? I have lots of those and an Astroflight ESC. Any help and advice would be appreciated.

Unfortunately, the boat is very small inside and can't easily hold 12 cells, or I would try a bigger 12 cell motor.

Thanks,

Greg

 

[Grimracer]

Himmelman,

I have seen the Lumar run and run quite well.. If its quitting its just plane lean.. make sure you open the needle a tad..

As for the cavatating.. do you launch the boat on plane or just set it in the water.. make sure you give the boat a good launch just to check if this is it..

Looking at the size of the boat i would say 12 cells would be easy to fit...

Keep trying and let us know if you get it going.

Grim

 

[anthony_marquart]

Like Mike said,.. sounds like the boat is cavitating. This boat like most any hydro has to be "launched". You have to nearly throw the boat into the water with a good bit of throttle. Plus some wax or rain-x on the bottom of the hull will help.

 

[Darin Jordan]

Like Mike said,.. sounds like the boat is cavitating. This boat like most any hydro has to be "launched". You have to nearly throw the boat into the water with a good bit of throttle. Plus some wax or rain-x on the bottom of the hull will help.

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12-cells fits just fine! We have a gentleman in our club who build one of these hulls for P-Sport Hydro and his takes off from a standing start just fine... It's one of the fastest P-Sports on the water to boot! Combo is a Hacker 8XL with 12 cells... That thing just FLIES!

 

[drobie]

I'd say no way in terms of 6 cells and a can motor, not with any kind of speed.

As for fitting batteries, have you tried two packs upright? Do you have a pick of the inside. Maybe we could help with a look.

Do you think I could get the boat to plane out with a 6 cell car motor? I have lots of those and an Astroflight ESC. Any help and advice would be appreciated.
Unfortunately, the boat is very small inside and can't easily hold 12 cells, or I would try a bigger 12 cell motor.

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[Randy Naylor]

Like Mike said,.. sounds like the boat is cavitating. This boat like most any hydro has to be "launched". You have to nearly throw the boat into the water with a good bit of throttle. Plus some wax or rain-x on the bottom of the hull will help.

106245[/snapback]

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12-cells fits just fine! We have a gentleman in our club who build one of these hulls for P-Sport Hydro and his takes off from a standing start just fine... It's one of the fastest P-Sports on the water to boot! Combo is a Hacker 8XL with 12 cells... That thing just FLIES!

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I have built several for customers. The nitro version will not launch from dead in the water but, The electric with 12 cells and a Brushless will. 6 cells and a 05 motor will not work well. The boat is just too lean! Out of the water and on the bench when you pull the throttle back there should be a 1.5 second delay in throttle response before it winds up. It should bog a little then rev. With all that has been said by others you should be on the right track.

 

[Pagemaster]

I just spoke to a customer that we sold a LLumar to. From a dead stop he said it will get on plane. He also has a proboat Miss Bud. It will not get on plane from a dead stop.

With 6 cells in this boat you will not be happy at all.

I agree with the rest that 12 cells is the ticket.

 

[himmelman]

Thanks for all the help. I'm switching some things over right now. I think I'll use 12 cells - I'll have to experiment with their arrangement inside the hull. I have an Octura X640 that is not in use - what motor would go well with that setup?...I would prefer brushed for now because I also have an Astroflight 212D ESC that is not being used.

Greg

 

[himmelman]

Hello,

I switched out the nitro engine for a 700 9.6 motor. I installed a solid 1/8 inch shaft slightly angled down with an Octura Y535 and the boat shot off from rest and planed instantly - now I'm impressed - it will be exciting to change out the motor and the prop...

I didn't think 12 cells would fit...its a little tight for the top to go on...but they're in there...

thanks again

Greg

 

[Bob Kensill]

I converted a Miss Bud to electric using a Kyosho Magnetic Mayhem 22 turn motor and 6 cells (3 on each side of the motor) and an Octura X432 prop. The boat gets up on plane from a standing start and runs between 15 and 20mph.