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HomeAircraftHelicopterKyosho Caliber/Quest Neo-Caliber series › 50 engine for Kyosho caliber 30
04-08-2010 06:25 AM  8 years agoPost 1
Joehall

rrNovice

panama

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I'm planning to put a 50 engine in my Kyosho caliber 30. I want to do some 3D flight with this helicopter and I will need more power. Do anybody know wich engine is the best for this kind of helicopter?

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04-11-2010 03:53 AM  8 years agoPost 2
dkshema

rrMaster

Cedar Rapids, IA

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What you're doing is making a Caliber 5 out of your Caliber 30.

You have two options, upgrade the 30 by installing the Caliber 5 tail boom and tail belt, add 95 mm tail rotor blades, change out your 550 mm main rotors for some 600 mm blades, and buy the motor mount and clutch shaft/components from the Caliber 5.

You will want to pick up the following Caliber 5 parts:

Motor Mount CA5116
Tail Boom CA5121
Tail Drive Belt CA5120
Flywheel CA5107
Clutch Shaft CA5106
Clutch Drum CA5136

95 mm tail rotor blades -- I recommend Radix 95 mm blades.
600 mm MR blades -- Radix or Mavrikk G5 Pro Wide Chord.

They will all drop right in.

Or you go out and simply buy a Caliber 5 kit. Third option? Keep the C30 as is, buy a Trex 600 Nitro Pro.

What 50 to use?

OS Hyper 50, YS 50ST, OS55, YS56...

And a decent muffler. MP5 or whatever the current muscle pipe that fits a 50 happens to be.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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04-11-2010 11:26 PM  8 years agoPost 3
bobbyhill4x4

rrApprentice

Watertown NY

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If you don't change the main gear you will never get the engine to run in the correct range. Excellent conversion, it will perform and fly like a new helicopter.

Rob

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04-11-2010 11:45 PM  8 years agoPost 4
baby uh1

rrVeteran

St. James, Mo.

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I had thought about installing a non Hyper OS 50 in my Caliber 30 and then running 15% nitro in it to make a more powerful 30 that runs on cheap fuel. I think that you could get away with just changing the motor mount to do this.
Anyone else try this or wonder the same thing?

Anything is possible if you don't know what you are talking about!

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04-12-2010 12:27 AM  8 years agoPost 5
dkshema

rrMaster

Cedar Rapids, IA

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Even the non-hyper 50 turning 550 mm blades will not be happy.

As for the gear ratio, the stock Caliber 30 gear ratio is the same as that of the Caliber 5.

You could make the "30" happier with a 50 under its hood by putting in the Caliber 4/5 main gear and hub (70T instead of 90T) -- CA5108 and CA5109 -- and then install the pinion from the Caliber 4 -- CA5506 (15T). That would change the gear reduction from 9.615:1 to 8.97:1.

But still, 550's on a 50...and small TR blades to boot does not bode well for performance.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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04-12-2010 01:26 AM  8 years agoPost 6
bobbyhill4x4

rrApprentice

Watertown NY

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If you are going to stay with 550 blades I think the setup that you are looking for will be the OS 37. This set up is much powerful then the 32 but you will be able to keep the blades loaded better and not over rev the engine. As for the main gear, I currently run the M50 gear on my caliber, I found that the engine was very difficult to tune and I never could achieve max head speed with out over revving the engine with the stock gear. If you are going to be trying 3D then you will be looking for the ultimate head speed.

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09-04-2010 01:57 AM  7 years agoPost 7
johnnybyankee

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chalmette,la usa

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coulld this be done to a nexus too?
Hey fellas i posed this same question on a different site about stuffing a .50 in a nexus .30 airframe i have but haven't heard from anyone since the concept .30 is somewhat similar i was wandering if it too could have a .50 size engine mounted ?

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09-04-2010 03:19 AM  7 years agoPost 8
dkshema

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Cedar Rapids, IA

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Hey fellas i posed this same question on a different site about stuffing a .50 in a nexus .30 airframe
Once upon a time you could buy a kit of parts to turn your Nexus into a Nexus 46. I guess you could stuff a 50 in there, too, if you had the parts from this kit. Good luck finding them.
A conversion kit for the 30 is also available.

* H331A - Starter Shaft
H3340A - Starter Cone Set
H3356 - Cooling Fan
H3357 - Clutch Shoe
H3358 - Main Gear
H3365 - Main Rotor
H3371 - Engine Mount
H3372 - Muffler
H3373 - Brace Collar
H3374 - Decal

The Brace collars H3373 are actually four 13mm round metal spacers placed between the frames and the skids. I temporary fitted these and couldn’t see any reason why they should be required. Then the other half Sandhya has a quick look and smugly points out that without the spacers access to the glow plug, for removal or attaching a glow driver, is difficult as the front cross brace for the skids gets in way. This is due the 46 engine being larger and mounting a bit further down from the side frames. Funny how you always overlook the obvious.
I'm not sure why you would want to pursue spending money, time, and effort to turn the Nexus into a 50-powered heli, though.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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09-04-2010 03:30 AM  7 years agoPost 9
johnnybyankee

rrNovice

chalmette,la usa

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why not?
whats the difference between throwing money at a nexus or a blade 400 or an align 700 nitro sure the heli is dated and old but it is a proven stabil flier and i've spent by far a hell of alot less on the 2 i've got than 1 of my 450 electrics

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09-04-2010 04:15 AM  7 years agoPost 10
dkshema

rrMaster

Cedar Rapids, IA

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Just an opinion. I owned three Nexus back about 1997 or so. They were OK, I flew them, sold two on Ebay finally, the last one died a painful death when the cheap Helimax Piezo gyro I had on it, went hard over in flight.

There are a lot better "50" sized helis that are also proven, stable, yet fly magnitudes of times better than the old Nexus. For not a lot of money, pick up a Caliber 5 if you insist on staying with Kyosho, or at least a Caliber 30 with the few parts needed to bump it up to a 50 machine.

Fly a "modern" 50 sized heli, you'll understand the difference between throwing money at the Nexus vs a decent design. If you got hold of a Hirobo Sceadu EVO 50, and set it up correctly, you'll give up the Nexus in a heartbeat. Even a no-frills Align 600 these days could change how you view that old Nexus.

Or -- a Raptor 50. (Thought I'd never actually type words recommending a Raptor...!)

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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09-04-2010 12:22 PM  7 years agoPost 11
heli-cuzz

rrElite Veteran

Pittston, Pa. USA

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Third option? Keep the C30 as is, buy a Trex 600 Nitro Pro.
A better third option. Get an Outrage or the MA fury55 and leave the Twrecks for somebody else.

Fury 55 NIB Furion6 CGY750 fbl helicopter-Frenzy CGY750 fbl nitro-Frenzy fbl NOBAR90

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09-04-2010 12:44 PM  7 years agoPost 12
johnnybyankee

rrNovice

chalmette,la usa

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your missing the whole point!
you guys are missing the whole point i all ready own 2 nexus's i'm not gonna dump another 5 or 6 or even 7 hundred bucks on another heli when i've got 2 perfectly fine one's all ready never mind i found the info on another site i see why many folks don't use runryder lol

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09-04-2010 01:10 PM  7 years agoPost 13
johnnybyankee

rrNovice

chalmette,la usa

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I'll put it to ya this way
I'll put it to you guys this way i'm not about to "Waste Even More Money on a Align nitro, i would pick up a hirobo first could be why you dk are still stuck in the arm pit state of the USA ya ain't got any money left cause ya spent all on a "fancy dancy align" i left good ole' iowa years ago i haven't had to spend a dime on my nexus's other than fuel and glow plugs most of the prices on your align stuff is rediculus and if i crash one, so what i'm not out a thousand bucks either! i'll just fly the second and keep the first for parts so when you guys are on here cryin cause you just wasted you pretty little heli that cost as much as a cruise for me to the bahamas, well i'll take the cruise and come home and still be flyin my nexus and still have money left thats why this is called a "hobby" i've got race cars to spend "real" money on

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09-04-2010 07:30 PM  7 years agoPost 14
dkshema

rrMaster

Cedar Rapids, IA

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Wow.

I seem to have spent my money on fuel, as well, in spite of living in Iowa AND flying Align helis. With the exception of a dumb-thumbs crash two years ago, I haven't spent a dime other than fuel on those Align helis.

Align products don't happen to be the "expensive, fancy dancy" helis you make them out to be. Mine have performed faithfully, day after day, year after year with no bad habits or failures. I don't think I've ever complained about wasting my pretty little heli as the result of a crash, either.

Once upon a time, I owned a Concept 30, a Concept 60, three Nexus, three Caliber 30s, a Caliber 4, EP 400, EP 400XP, and a Caliber 5. I've done the Kyosho thing, and moved on. If you cruise way back in time through the Kyosho forum here, you'll find that I was a defender of the brand. I actually resurrected a Caliber 30 that's been sitting idle in my garage for about a year, last weekend. I used to think they flew great, but frankly, was disappointed.

Fly whatever you wish, I'm not here to force anyone to fly anything they don't want to. Go ahead and put a 50 in your Nexus, that's your decision.

As for Iowa, I'm "stuck" here by choice, having moved intentionally 13 years ago from New Mexico. I have an excellent job with Rockwell Collins, am involved in designing and building avionics for what is going to be a superb Business Jet -- The Gulfstream G650, and quite happy doing it.

A cruise to the Bahamas doesn't interest me, I see that as wasted money that could be better spent on a decent heli!

I recommended that you take a look at the Sceadu EVO as I owned and flew one for a bit more than six years. It was a very capable, very dependable 50 sized heli, and was a joy to fly. Operating costs were low. Try it, you may just like it!

Geez, I even recommended that you take a look at the Raptor 50. Another solid heli, designed for a 50, and with 50 performance.

The no frills Align 600 -- well, I only suggested that you give it a try. For someone who has apparently never owned an Align product, you sure seem to be definitely biased against them. There WAS a point here on RR where I swore I'd never own another Align heli -- that was after fighting a couple of the original Trex 450X and 450X-V2 kits. Then I tried a 600 Nitro Pro. If you take a look at my gallery today, you'll see that I've had an epiphany, and now own a boatload of those fancy dancy "expensive" Aligns.

I have nothing against rebuilding older helis, I recently resurrected a 25 year old Schluter Superior, that thread is here on RR. It turned out to be a nice trip down memory lane.

I gave you a heads up on what parts were originally needed to upgrade the Nexus to run an OS 46. The 50 has the same footprint, so were you able to locate those parts, you could indeed stuff a 50 in it. Go for it. Have fun. THAT is why this is a hobby.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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09-05-2010 12:41 AM  7 years agoPost 15
johnnybyankee

rrNovice

chalmette,la usa

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yep and that is why MY Nexus's are 20 yrs old
Hmm guess i really can't complain about my 20yr old helis usually something is done right when it lasts that long not too mention i might have a whole $100 bucks invested

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09-05-2010 12:51 AM  7 years agoPost 16
JuanRodriguez

rrProfessor

The Villages, Florida

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yep and that is why MY Nexus's are 20 yrs old
Good luck finding the parts you'll need !!

Been there, done that and old enough to know better.....

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09-05-2010 06:27 PM  7 years agoPost 17
Optech

rrKey Veteran

San Diego, CA.

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Okay..... Now that the crappy ar$e nexus question has been answered, how about we get this thread back on topic.

I'm converting my Cal.30 back to .30 size with a Toki .40 I picked up so for anyone wanting to convert a Caliber30 to a .50, I have parts to make up 2 of the Trim Corp. 30to50 conversion kits. One of them will be used parts but I think I have an unused one as well. I might have an extra boom as well. If interested I'll sell cheap. I've also got 1 Caliber M50 main gear that will drop the drive ratio to around 9.3:1 I believe.

The Trim Corp kit includes;
- Clutch adapter shaft for .50 engines
- .50 engine mounts
- Longer boom for 600mm blades
- Longer tail belt

The Trim Corp stuff is anodized dark blue and is very snazzy. Here are a couple pics;

Mike

Viva La Airtronics!

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09-05-2010 06:52 PM  7 years agoPost 18
johnnybyankee

rrNovice

chalmette,la usa

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Ok I'm the guy that asked the Crappy nexus ?
Ok I Asked the Crappy Nexus Question Do you want to sell the parts from your conversion? i'll make it work for my own send me a price for what you have and whats included pics would be nice too
thanks, crappy old nexus flier

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09-05-2010 07:57 PM  7 years agoPost 19
Optech

rrKey Veteran

San Diego, CA.

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Not sure what's being said here..... Are you wanting to use my Caliber parts in your nexus???

I know its been a long time since I messed with a nexus but I don't think even one part of what I have will work on it. The Caliber is a COMPLETELY different heli.

Far be it for me to turn down a sale but even I'm not that mean.

Mike

Viva La Airtronics!

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09-05-2010 08:39 PM  7 years agoPost 20
dkshema

rrMaster

Cedar Rapids, IA

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Nexus. Music wire driven tail rotor.
Caliber 30. Belt driven tail rotor.

Nexus has no way to drive a belt, conversion is unlikely.

Caliber 30 motor mount completely different design, will not fit, nor work in a Nexus.

Other than that, go for it.

But HERE's a real interesting idea to consider. You apparently want your Nexus to fly with the authority of a 50-powered heli. That is an admirable goal.

But -- it might be much easier, and more reasonable, to convert the Nexus to an electric-powered heli with 50-like performance. With some ingenuity, a formidable power system could be implanted into the Nexus that would save on the weight associated with a 50 and its muffler while giving it some near rocket-ship like performance.

Of course, with the Nexus you will have limited collective range, and unless you've done something to correct it, those nasty plastic ball links everywhere that wear out and induce a lot of slop. You CAN correct that by carefully sawing the balls off, drilling an appropriate sized hole, and replacing the plastic ball with a steel version.

Unless you find a way to change the gearing while going from a 30 to 50 motor in your Nexus, you will be plagued by a host of problems associated with not really being able to run the motor in its power band efficiently, or effectively. You may also have to limit the throttle to prevent overspeeding of the head and the resultant disintegration of the head in flight. Further, if your Nexus include the autorotation option, a 50 may really test the ability of that little one-way clutch to survive the additional power and torque that it will be asked to transfer to the main shaft.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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