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Main Discussion > Turbo on a heli

Furious Predator
Elite Veteran
Location: Kitchener, Ontario, Canada

Has anyone ever thought of a miniature turbo to shove air into the carb faster? not that todays engines/fuel needs it. i'm just wondering if anyone may have tried something like that.

I know people have put nitro injection, and YS engines have so called SuperChargers.

11-16-2004 10:04 PM

HOMEPAGE

Darksider
Key Veteran
Location: Derby United Kingdom

i saw a mini supercharger for the raptor helicopter at a website that linked from here once, it consisted of a small modification to the raptor fan so that it drove a thin rubber belt that linked to the supercharger and turned it up to engine rpm's, and then had a tube that fed the air directly into the carb air opening, i imagine just based on what it did, even if it was terribly designed it would certainly lead to an increase in power, though it might also wear your engine out alot faster or require specialised fuel mixes.

Gareth

11-16-2004 10:10 PM

mrNoodles
rrProfessor
Location: Borlänge, Sweden

Here!!

11-16-2004 10:10 PM

HOMEPAGE

Al Magaloff
rrMaster
Location: 12,199 Posts- Enough Time Wasted. See Ya!

Gareth, it did not lead to any more power. Furious, basically, you don't force induce a piston ported two stroke, successfully.

11-17-2004 01:03 AM

Furious Predator
Elite Veteran
Location: Kitchener, Ontario, Canada

i just thought it would be kinda neat to hear the whine of a mini turbine in a heli

i would almost built something just for the sound effects and not attempting to produce power.
Kinda like one of those retarded Honda Civics with the Fart pipes/Popcans on the end of the muffler with zero back pressure. Its for show, not performance.lol.

Incase your wondering about my distaste for the Civics, its because in the city i'm in, 5 out of 4 people have them, and its annoying. just about every civic here has fart pipes, and cocky drivers (who dont know how to drive), one can only hear it and see it for so long.

11-17-2004 02:16 AM

HOMEPAGE

Alistair
Key Veteran
Location: no where land

actually, i've a cousin who makes -mini- turbines for these engines.

he has already got them out for R/C cars(trucks, boats etc)...

he's had them out on go-peds for like four years now.

i've been asking him to make one for my helis

it's works just like a "real" turbine... infact it is a real turbine, it's just real small

loats of power and lots of neat noises. you can hear it spooling... lol

11-17-2004 02:42 AM

mcatech
Veteran
Location: Mount Gambier SA Australia

Furious Vigor

this is the way to do it

http://www.rcturbinehelicopters.com/

11-17-2004 02:46 AM

Furious Predator
Elite Veteran
Location: Kitchener, Ontario, Canada

yes, i agree, thats the way to go, and i would. but my pockets aren't that deep yet

i like to design and create things, a mini turbine is something i would do if i had a mill and lathe (soon to come though).

11-17-2004 02:51 AM

HOMEPAGE

daz59
Senior Heliman
Location: Tokoroa, New Zealand

You wont get much if any power increase out of putting a super charger or turbo on a nitro two stroke, the extra air that gets blowed into the engine goes straight out the exhaust.

11-17-2004 05:09 AM

Furious Predator
Elite Veteran
Location: Kitchener, Ontario, Canada

the super charger on the YS engines isn't really a supercharger, its more of a fuel boost, it just fires the fuel into the engine faster....atleast thats my understanding of it, unless someone can correct me if i'm wrong.

11-17-2004 05:11 AM

HOMEPAGE

Alistair
Key Veteran
Location: no where land

Quote
the extra air that gets blowed into the engine goes straight out the exhaust.

eh no... a lot of bits are changed. you don't use the "standard" components.

believe me, it works.

i just explained to a fellow how it works... too much typing, i'll do it later

YS.... lol yeah... not even close to a super charger... lol

squigle

11-17-2004 06:29 AM

daz59
Senior Heliman
Location: Tokoroa, New Zealand

Alistair, I would be very interested in how it works, if you need to change a lot of parts (a two stroke doesn’t have many in the first place) I imagine it would be cheaper buying a four stroke nitro and putting a super charger on it.

The only way I can think of doing it is like the old two stroke diesel Detroit engines with valves.

Darren

11-17-2004 06:46 AM

daz59
Senior Heliman
Location: Tokoroa, New Zealand

Hang on, you say you don’t use the "standard" parts, so really your getting a new engine ?

11-17-2004 06:47 AM

the collective
Veteran
Location: Bayside, NY, U.S.A

Quote
the super charger on the YS engines isn't really a supercharger, its more of a fuel boost, it just fires the fuel into the engine faster....atleast thats my understanding of it, unless someone can correct me if i'm wrong.

The 2 stroke YS engines aren't supercharged at all, they just have the pressurised regulated fuel system. The 4 stroke YS engines are supercharged, unlike the typical 4 stroke that draws its fuel/air charge directly from the carb to the intake valve, YS 4 strokes use the movement of the piston to draw the fuel air charge into the crankcase as the piston rises, then a disc vavle closes the inlet and as the piston comes back down the fuel air charge is forced from the crankcase into the intake manifold at higher than atmospheric pressures. I'm not sure exaclty how much boost pressure comes of this but I believe I've read that it's on the order of 4 or 5 psi over atmospheric.

11-17-2004 07:13 AM

Alistair
Key Veteran
Location: no where land

thats like .2 or .3..... maybe .4 bar? i don't know the psi convertion too well. then again, i don't really care to

squigle

11-17-2004 08:23 AM

daz59
Senior Heliman
Location: Tokoroa, New Zealand

14.5psi is 1 bar

11-17-2004 09:20 AM

lozza6
Veteran
Location: Sydney, Australia

would this cause overheating of your engine?

how does it differ from say running your your engine lean?

Extra pressure... what are the results?

Loz

11-17-2004 09:54 AM

Al Magaloff
rrMaster
Location: 12,199 Posts- Enough Time Wasted. See Ya!

Alistair, I too would be interested in the details. Your friend is quite unique.

11-17-2004 10:07 AM

Crusty Commie
Senior Heliman
Location: Wales

Alistair, got any more info?, does this involve a new liner ?, I cant imagine how you can get the porting to work.

I am dsylexia of borg..resistance is fruity...your arse will be laminated

11-17-2004 11:02 AM

vince
Senior Heliman
Location: Victoria BC Canada

From what I have been told nitro is like a supercharger on the intake side. At 30% nitro you have almost 66% more oxygen in the combustion chamber. Also tuned mufflers or tuned pipes kind of work like a turbo on the exhaust side. They set some kind of a reflecting pulse wave that pulls the exhaust out of the chamber.

11-17-2004 04:20 PM

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Main Discussion > Turbo on a heli

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