RaZ_Tx

just because he is a moderator doesnt mean he is always correct now as for the superchargers working or not working im sure [link=http://www.rbinnovations.com/]this place[/link] wouldnt be in bussiness

GALAXY

I agree with him on just about everything else and if I can I'll go to orlando and meet him and hang out.I'm not mad,been laughing the whole post

Honestly... being a moderator is what makes it even worse because as far as I can see its all guesses.I understand,Saab,Subaru,blah ,blah....my friend is a Volvo mechanic and he thinks it will work but it doesn't mean it will.

I just don't see how you can't understand WHY it would work....and you can't see how I think it will...so theres no point in debating it till someone actually gets one.

I work at a relatively decent size machine shop and have learned a good bit of business practices/politics,...they would have taken thier site down a long time ago and would have never bothered to manufacture and market that product if it wasn't tested and proven to work and increase horsepower...if even a small bit.

Billyman

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This discussion gets older by the minute and has been going of for years.

solo2guy

Thats funny Detroit Diesel has been supercharging and turboing there two strock diesels for a long long time, and they are very similer in design.

trailingedge

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Detriot diesel has valves to close off the chamber so that no pressure escapes. Besides now you're talking deisels which run quite differently from our little glow engines. They won't run at all without forced induction. Put some valves and a cam in a glow engine and you'll get an appreciable gain in glow two stroke because you can then increase the compression (what forced induction does for you...more air/fuel mix...same size combustion chamber). Until you do that, you'll be pushing air in the intake port and pushing it right back out the exhaust port. Peeing in the wind in a sense. If you don't believe me, then clean your engine and blow into your carb as you turn your engine over. As you approach BDC, you'll be able to blow straight through...





Trailingedge
former service manager Tric C marine Inc.
Detroit Diesel certified master guild
EMD specialist

trailingedge

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That being said, unless there's an incompatability with glow that I don't know about, there is no reason why a shot of nitrous oxide wouldn't work. Of course you'll need a system to account for the instant lean condition you'll experience when you add the nitrous (secondary fuel jet). You'll also need to strengthen the head bolts or add more of them and add some better cooling. This is simply theory so don't send your lawyer my way when you put a piece of molten cylinder head through your eye sockets...

Billyman

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Nitroaddict

I find it rather amusing that everytime ths topic comes up, the people who say it doesnt work give detailed scientific explanations, and the people who say it does, counter with "does too!"

Billyman

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I find it rather amusing that every time this topic comes up, people feel compelled to display all grades of ignorance and act solely on speculation, what they think and hear say.

Hands on experience means nothing to these twits and aren’t willing listen.

Until any of you have put your hands on it, tried it, researched it to the “T” and know facts, just shut up about it.

Everyone wants prove or disprove a theory. You have to physically do this. You have to at least understand all the principles, aspects and science involved.

You can listen as well as you hear.

trailingedge

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Ignorance eh? I was talking theory about the nitrous. I've played with most everything else.... If you're so smart, explain to me how forced induction will greatly improve an engine with carved holes in the side of the cylinder (intake/exhaust ports). The experiments I conducted produced a some gain, but was offset by a HUGE hit in economy. The engine became a glut because the more pressure I tried to give, the more fuel/air was pushed out the exhaust port unburned (please refer to my previous post about peeing in the wind). As for the nitrous THEORY. What would you in your infinite wisdom like to contribute Billyman?

Billyman

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#1 As for your supercharging experimentation:

You couldn’t be more correct. It is true that even such devices as rb innovations sells produces some gain. But no where near enough to be noted as “significant” and definitely not worth the money nor effort.

There is a simple solution to making an rc supercharger actually work but it goes beyond simply bolting it on. It will also take a unit much more aggressive than that of something like rb innovations has to offer.

In other words, it ain’t in production yet.

#2 I’ll withdraw my previous statement that was coated with attitude. It came from annoyance.

However, I will not repeat myself again, and again, and again as I already have about Nitrous Oxide.

This topic is all over the board, do some searching and you’ll find my “infinite wisdom” as you so eloquently put it.

Nitrous Oxide isn’t a theory, it’s a science, just some hasn’t mastered it yet.

trailingedge

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#1 I'll agree with you there. There's very little along the lines of impossible with enough effort. I doubt we'll ever see it at a reasonable price.

#2 No biggie... I did a few searches and I see why one would have an attitude. The YS never runs right and sucks guys in the engines forum do the same to me. I normally frequent the plane forums and I didn't know there were so many posts about this stuff. Sorry about my attitude also. The nitrous thing was off the top of my head while I was posting. I think it would be easier to get some good results out of a nitrous set up, but I'm too lazy to do the leg work. Maybe this summer...

Billyman

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Unstable

detailed scientific explanations also say that bumble bees cannot fly.

royta

I just wanted to point out that diesels do not NEED forced air induction to run, just like a 4 stroke gasoline engine doesn't need forced air induction. Vaccum takes care of the induction, although with less power output than forced air induction. I understand that you know and have probably forgotten more about diesel engines than I'll ever know or learn. I'm just pointing it out that forced air induction isn't a necessity.

trailingedge

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I understand that royta, I was talking about the detroit diesels in an earlier post and not of all diesels. Sorry for being vague.

BUGGIES_R_US

Why is that company in business?
Well,

Why is microsoft in business? HEck.. Windows NT was pretty much USELESS til SP3 came out.
Its all in the marketing! Marketing makes you more money than a badly run company with good software. (many RC companies come to mind)

One thing you guys forgot to include in the equation: COST!

Are you willing to pay $150 for osmething that adds .2 HP(Assuming it works and assuming it adds 20% more power)

If you live in high altitudes or if you have a very restrictive air element.. then you'd notice an improvement in performance.

But.. fact is.. Nitromethane is naturally lean burning. If we had a supercharged diesel.. HMMMM that should be interesting! (still assuming that the SC increases absolute manifold pressure)

Ram

puchinator

Deisel engines are TOTALLY (well, alot) different than unleaded. i am in the process of becoming ASE certified, so i know some stuff. second, the RBinnovations "supercharger" is just a forced air system. a real supercharger/turbo speeds up both the fuel/air mix, not just the air. notice in the attached picture, the RBInnovations supercharger has only air passing through it.

RobH

Nitrous for RC Nitro is already out and being sold.

http://www.jagrc.com/buynow.html

It would be fun to play with one of those kits. I think it may have the same effects as the super-charger though... more O2 would just mean richer needle settings.

GALAXY

Apparently you missed the barb fitting for added fuel pressure,look at that picture closer.

This thread should've been over on the 4th post,.....why oh why did I have to say something.

Billyman

My Feedback: (1)

They're all over hell and creation. They're called Turbo diesels. It’s more efficient for a diesel engine to utilize a turbo as oppose to a belt driven supercharger.

They both do the same thing in the end just go about it differently.

RaZ_Tx

all SC/turbos including the rb technicly speed up the air/fuel infact there is only one kind of supercharger that fuel actualy passes through and that is the roots type blower (old school and huge) the paxton style supercharger is only a turbo charger that is diven by a belt instead of exhaust gases

Billyman

My Feedback: (1)

You need more schooling.

You have two different turbo/supercharger set ups when using a carburetor.

One of which is a “blow through” system where the turbo/supercharger is mounted before the carb and uses a tube and bonnet or (hat) that mounts to the top of the carb itself (Typical of turbo’s and centrifugal superchargers). The biggest problem with “blow throughs” is a carburetor doesn’t understand pressure and doesn’t respond very well. The pressurized intake manifold is doing squat until the piston goes down stroke to allow air to pass through the carb. The power gain comes for increased cylinder pressure, it is up to you, the technician to tune and compensate with more fuel. The “blower” doesn’t do it.

The second of which is a “draw through” system. Like the ones you see on TV when watching drag racing. Since the carb only response the air passing through the venturi’s, these are much easier to tune. There are also “draw through” systems where the carb mounts before the inlet on turbo’s and centrifugal superchargers but most “draw throughs” applications are roots and screw type blowers. The air/fuel is not “sped up”. The intake manifold is pressurized. Upon the intake valve opening, the cylinder too becomes pressurized thus adding more power. The fuel is just thrown into the mix. Again, the amount of fuel is determined by the metering of the carb predetermined by the “tuner”.

On an injected or fuel injected application, there is no “draw through” or “blow through”. The supercharger/turbo only pressurizes the intake and cylinders. Fuel amounts are regulated and determined by electronic means (computer) and in some cases mechanically.

The same applies for diesels. Whether it be yesterdays mechanical injection pumps and injectors or today’s high tech computer controlled pumps and injectors, the turbo’s in which they are fitted, has no direct control over and fuel additions. The pressure added is monitored and compensated for by other mean.

Pressure, that’s what it’s all about.

nodolarsnosense

i agree with billyman.
turbos/supercharges specifically work with compressing air
an electronic system is going to use sensors (through exhaust gases or whatever) and hence electronically adjust the fuel injection to compensate for more air.
or if a carby it makes sense that the increased airflow would suck proportionally more fuel in through the ventury effect.
im no "expert" but that just the way it is.
turbos dont pump fuel directly and im pretty damn sure no supercharger does either.

is there any use in having a smaller supercaharger which works quite hard at low rpm but then disconnects n gives way to a big turbo once the turbo kicks in. i havent thought this one through, its just an idea.

GALAXY

Read Billymans post 4 times so you understand it,he's right,then go read it again,lol.

Puchinator...you see that fitting yet?you need an arrow? Seriously,reply to that,I gotta know how you missed that.

(EDIT) Here,maybe this will help....did you even look at that site?