RunRyder - Turbo on a heli

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Main Discussion > Turbo on a heli

Jamovich
Senior Heliman
Location: 55 45 N 37 42 E

Hmmm

Would'nt this be a good solution for those who live at high altitudes??

Jamovich

11-17-2004 05:06 PM

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

It would be, if it worked. The problem is, two strokes can not be forced induced. This idea could also win WW3 or take us to Mars. Maybe even cure all disease.

11-17-2004 05:29 PM

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

11-17-2004 05:52 PM

Jamovich
Senior Heliman
Location: 55 45 N 37 42 E

hmm

If it did'nt work then RB would not be in business.....they are doing the same mods for r/c trucks etc.....and by the looks of it people are buying...not that many idiots!

11-17-2004 06:11 PM

Alistair
Key Veteran
Location: no where land

i'll explain later.... i've to be off right now....

squigle

11-17-2004 09:52 PM

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

...not that many idiots! Right.

You're telling this to someone who probably doesn't know any better. Jam, just how much load do you think the rubber band driving that thing will support?

11-17-2004 11:35 PM

Furious Predator
Elite Veteran
Location: Kitchener, Ontario, Canada

you never know how much the band will support. it may be something as simple as an o-ring, which could be pretty tough. since its only moving a small turbine i cant imagine any reason it wouldn't handle it.

11-18-2004 12:41 AM

HOMEPAGE

Darksider
Key Veteran
Location: Derby United Kingdom

so al, sounds like you've got experience of this item, have you tried it and found the results to be poor?? i just figured anything that induces more oxygen to the combustion reaction even if there's tonnes of wastage would increase overall power, only problem i could foresee was that the engine would likely be lean until the needle pretty much fell out of the carb because of the large amount of injected air.

Gareth

11-18-2004 12:45 AM

Furious Predator
Elite Veteran
Location: Kitchener, Ontario, Canada

I know this is going pretty far. but is there not engines with mini computers that will automatically adjust the needle?
I know there are ways you can use another servo to move one needle, and manually adjust it on the radio.

11-18-2004 12:52 AM

HOMEPAGE

Alistair
Key Veteran
Location: no where land

yes, but currently the fuel injected engines are aeroplane engines...

not heli yet....

squigle

11-18-2004 01:21 AM

Crusty Commie
Senior Heliman
Location: Wales

quote "i'll explain later.... i've to be off right now....

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

11-18-2004 08:35 AM

daz59
Senior Heliman
Location: Tokoroa, New Zealand

Alistair, thought you were going to explain how it works??

11-18-2004 09:48 AM

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

Why not by one, try it for yourself, report back. Gareth hit on one of the major flaws in the RB system.

Furious, you obviously have know idea how much power it takes to run the compressor, subtract for all the parasitic drag and heat, THEN show a power increase. The drive belt is in fact a regular black o-ring. Some great discussion here, but when all is said and done, the fact that no piston ported two stroke has ever been supercharged, except for Detroit diesel, remains. This fact does not come about by accident. A Detroit diesel has exhaust valves( two per cylinder) .

11-18-2004 10:16 AM

Darksider
Key Veteran
Location: Derby United Kingdom

i suppose if the air being forced into the system is a big problem making the engine lean out, an adjustable pressure system on the supercharger output/carb inlet tube with vent for excess pressure may fix the problem and allow you to balance the fuel and air mix, but then half the efficiency of the whole system would be gone because you'd have to turn the air pressure down so low to create a reasonable run from your engine, so you might end up just about back where you started, after you'd taken into account the drag created by driving the supercharger, the other major problem with that being if the rubber o-ring belt broke while in flight the engine would most likely instantly cut because of an overly rich state, probably not the best idea, though it seems like a nice shiny peice of bling.

Gareth

11-18-2004 12:28 PM

rstacy
Key Veteran
Location: Rochester, NY

We did try one on an OS32.
It didnt work.
Al told me before I tried it that it wouldnt work for all of the reasons that he has stated here.
He was right.
It doesnt work.
The engine pretty much runs the same with it or without it. If anything it didnt run as well in a heli because of a tendency to lean in the mid range. R/C cars and trucks may not care about the leaning but the heli didnt like it. Top end power was no different.
It is a shiny piece of bling that the car and truck probably like. Nothing more and probably why R&B is still in business.

11-18-2004 05:20 PM

HOMEPAGE

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

I think our next step would be to say, use a YS140 and build a real supercharger for it, complete with boost referenced fuel curve.

11-18-2004 05:34 PM

rstacy
Key Veteran
Location: Rochester, NY

I have a YS120 if you are willing to build the super charger

11-18-2004 06:25 PM

HOMEPAGE

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

The YS140DZ would lend itself better to the challenge, due tyo the mechanical fuel injection. We need a deal on a new one.

11-19-2004 01:33 AM