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Old 07-05-2009, 08:45 AM   #1
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Default superchargers? on nitro

ok so i have found out they they make superchargers for nitro engines, and ys i know they've been around for five years or so. Anyways whats the deal with them they say they give you a 15 to 20 percent horsepower increase and more bottom end but what about the whole fact of leaning the engine out too much. i saw a video of a guy that torched and engine because he had it too lean and said that the high speed needle couldn't keep up no matter what i belive it was an o.s. .25. the last thing i thought about is if you have air being forced into the crankcase like that and then into the combustion chamber it's going to mess up the scavenging that a two stroke eninge needs to run right?

so if anybody could end this for me once and for all cause if it really is worth it than hell i'll get one but if im looking at 200 dollars for a supercharger than another two hundred dollars for another engine in a month whats the point.

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Old 07-05-2009, 08:53 AM   #2
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I have seen this debate on a helicopter website before and from what I read it either won't work on a 2 stroke motor or if it does work it is barely anything. They have been around for a while so if they worked as well as advertised I would think more people would be using them.
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Old 07-05-2009, 09:19 AM   #3
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OS used to make a supercharged plane engine. It will work on a two stroke, though not nearly as well as on a four stroke but it would require a radically different engine set-up to be really effective and reliable.
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Old 07-05-2009, 09:23 AM   #4
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Most of the time people are de-tuning their engines to make the cars more driveable, with restrictors. For any sanctioned racing, forced air induction isn't allowed anyway.
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Old 07-05-2009, 09:25 AM   #5
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I knew O.S. made some supercharged 4 strokes but never seen a 2 stroke from them.
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Old 07-05-2009, 09:26 AM   #6
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Quote:
Originally Posted by rc-mike View Post
I knew O.S. made some supercharged 4 strokes but never seen a 2 stroke from them.
Now that you mention it, the ones I saw may have been four strokes. Not sure.
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Old 07-05-2009, 09:44 AM   #7
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Quote:
Originally Posted by rc-mike View Post
I knew O.S. made some supercharged 4 strokes but never seen a 2 stroke from them.
the supercharger wasn't from os it was an RB supercharger
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Old 07-05-2009, 10:54 AM   #8
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Quote:
Originally Posted by darkvolf100 View Post
the supercharger wasn't from os it was an RB supercharger
I know. Just saying OS used to build motors with built in superchargers so obviously it could work. But like the other guy said, I think they are four strokes now that I think about it.
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Old 07-05-2009, 11:33 AM   #9
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oh ok gotcha yeah my one friend said not to worry about it because the horsepower you make from the super is lost by the efort done by the crank to spin it so idk yet ill see how my jato 3.3 does when i get it to determine whether ill get it or not. the last thing i want to do is blow a brand new engine

but before any of that i have the break in and tuning period
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Old 07-05-2009, 11:58 AM   #10
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If you do try it, add a couple head shims and go full rich.
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Old 07-05-2009, 12:09 PM   #11
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Yeah so the compresion isn't astronamical and it doesnt run lean . im planning on drag racing it sometimes thats the only reason id put it on a jato. Plus sick obscene amounts of power are awesome
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Old 07-05-2009, 01:31 PM   #12
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let's see some pics of it
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Old 07-05-2009, 01:36 PM   #13
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http://www.youtube.com/watch?v=u4yTADlRuF0
http://www.youtube.com/watch?v=NwH7lgbc18s

this might help
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Old 07-05-2009, 01:40 PM   #14
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It really wouldn't be able to work unless we used a reed style setup.
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Old 07-05-2009, 01:59 PM   #15
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[quote=snowboard094;6026827

this might help[/QUOTE]

YES. i've watched this already i posted it earlier and this conversation is started to go in a circle haha but yeah so i read another thread and the guy said that it basically helps scavenge the motor better since there is no valves therefore no way to force the air fuel in without it escaping
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