supercharge
01-09-2008, 12:21 AM
#1
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supercharge
has anyone seen this product? if so how is it?
http://www.rbinnovations.com/catalog...9ce5d26d15bfba
http://www.rbinnovations.com/catalog...9ce5d26d15bfba
01-09-2008, 08:51 AM
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RE: supercharge
DOn't buy it unless you want to really open a serious can of kick butt on the competition! You'll destroy all who come bfore you with a blower!
01-09-2008, 02:40 PM
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RE: supercharge
use the search botton better yet i done the search for ya!
http://www.rcuniverse.com/forum/sear...mitbutton=+OK+
http://www.rcuniverse.com/forum/sear...mitbutton=+OK+
01-09-2008, 02:48 PM
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RE: supercharge
I was looking for this guys video. He put one on and it seemed to make a difference. I dont know if its worth it.
http://www.rcuniverse.com/forum/m_66...tm.htm#6642588
Read all that and watch the video
http://www.rcuniverse.com/forum/m_66...tm.htm#6642588
Read all that and watch the video
01-09-2008, 04:49 PM
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RE: supercharge
ORIGINAL: sheograth
Its been discussed many a time, often with real science involved. They dont do jack for our engines.
Its been discussed many a time, often with real science involved. They dont do jack for our engines.
Fact, they do work, scientificly proven, incase you didnt know shoegrath. Limited gains, depending on motor internal design but they work fact.
They give us about 30% power increase, thats taken from one on the traxxas forum, where theres a video of one in action, the power difference is awsome mate, science, ppfftt.
The guy at the traxxas forum payed 25US dollars for his, now even science tells you them gains are worth 25 to 50 bucks.
Most discussions about these things are based on ones hypothesis, not science, these things have been proven to actually work, in the field, there is no better evidence than a quick google for a revo with a supercharger, go check it out, proof they work.lm to lazy to find the link again.go find it ppl.
01-09-2008, 04:51 PM
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01-09-2008, 05:30 PM
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RE: supercharge
if you're going to spend the $150+ on the engine you alreaddy have then send it to Adam at ABmods and have him modded for either $85 or $130 you'll get alot more power fom him modding it then you will from some want a be super charger, that don't even really work.
01-09-2008, 05:41 PM
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RE: supercharge
before i spent 150 on that i would save a lil more money and just buy a bigger motor....or better yet for around 290 you can put the big block conversion
01-09-2008, 05:55 PM
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RE: supercharge
i agree with JB COMP... it goes both ways...there are very small performance gains on our nitro engines but it can be argued that it is due to more fuel air mixture from the supercharger or because the supercharger leans the motor out alot, and as we all know a lean motor has better performance but at a cost. if you want more power and better fuel economy then a supercharger you can get your engine modded at AB mods for only $85. there is also no added weight and it doesnt take gallons off the life of your engine.
01-09-2008, 06:35 PM
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RE: supercharge
But the supercharger is 25 US dollars, 85 for a mod, 150 for a new motor, the supercharger is cheapest for the % gains.
Its incorrect to 'assume' that all superchargers lean out an engine, that is simply incorrect, some do through poor design, others are far better.
If the compression ratio [ for sake of argument] is 1;10 without a supercharger and is 1;15 with a supercharger, maths tells you, that the supercharger has put that extra energy into the cylinder and that it will achieve greater power [kW] and more torque [Nm] theres nothing spooky about it, its not a mirical, its maths, and they do infact work even on our little 35000rmp nitro engines, why, a simple princible, in our current nitro engines fuel and air is ''sucked'' in, to increase power and responce the only thing that can be done is to increase the stroke, ie more compression, or increase the carby barrel size letting it 'suck' more air fuel in each clyinder cycle, a supercharger does not have the problem of only being able to suck fuel and air at the atmnospheric pressure, ie, only so much air can go through a non supercharged engine without some sort of induction, heres the punch line ,our nitro engines are actually capable of alot more than they do now, so a supercharger or blower or the like, is an advantage for power, get a JB COMP engine test it then supercharge it, and test it again , the gains there are going to be huge if the internal engine design is good.
The oil is in the fuel what goes in gets compressed period, the fact is you need to richen superchargers, because they draw so much more air in, how do you guys tune your top end, lm wondering, because this is rediculas, its the same princible, its why theres a second needle on your carby's, because the faster an engine spins the more fuel and air its going to need, same in a supercharger, so now its set richer, and it 'will' compress more and the bang will be more powerfull, how about you guys explain the actual details as to why it cant work, even though they do and are buyable today ....? Just saying its Bs doesnt cut it ladies, it may not win any races, but they do work. An engine cant rev any higher with one, it will just get to those top revs a hell of alot faster, inj this sport with these engines were still talking hundreds of a second, seriously.
lm not saying there a good idea, because l think there a bad idea for RC , they are bulky, and risk shrapnal going into engine in a high speed crash where the charger gets destroyed, which is common, l dont think there for anyone but the 'model' enthusiast, those who like to tinker, like me years ago, they are discredited alot because of the small willy complex, mines faster than your so to speak, people dont want to see them succeed, which it sad really, there just another bonus option that some company has taken the time and effort to try and give you for your hobby.
Its incorrect to 'assume' that all superchargers lean out an engine, that is simply incorrect, some do through poor design, others are far better.
If the compression ratio [ for sake of argument] is 1;10 without a supercharger and is 1;15 with a supercharger, maths tells you, that the supercharger has put that extra energy into the cylinder and that it will achieve greater power [kW] and more torque [Nm] theres nothing spooky about it, its not a mirical, its maths, and they do infact work even on our little 35000rmp nitro engines, why, a simple princible, in our current nitro engines fuel and air is ''sucked'' in, to increase power and responce the only thing that can be done is to increase the stroke, ie more compression, or increase the carby barrel size letting it 'suck' more air fuel in each clyinder cycle, a supercharger does not have the problem of only being able to suck fuel and air at the atmnospheric pressure, ie, only so much air can go through a non supercharged engine without some sort of induction, heres the punch line ,our nitro engines are actually capable of alot more than they do now, so a supercharger or blower or the like, is an advantage for power, get a JB COMP engine test it then supercharge it, and test it again , the gains there are going to be huge if the internal engine design is good.
The oil is in the fuel what goes in gets compressed period, the fact is you need to richen superchargers, because they draw so much more air in, how do you guys tune your top end, lm wondering, because this is rediculas, its the same princible, its why theres a second needle on your carby's, because the faster an engine spins the more fuel and air its going to need, same in a supercharger, so now its set richer, and it 'will' compress more and the bang will be more powerfull, how about you guys explain the actual details as to why it cant work, even though they do and are buyable today ....? Just saying its Bs doesnt cut it ladies, it may not win any races, but they do work. An engine cant rev any higher with one, it will just get to those top revs a hell of alot faster, inj this sport with these engines were still talking hundreds of a second, seriously.
lm not saying there a good idea, because l think there a bad idea for RC , they are bulky, and risk shrapnal going into engine in a high speed crash where the charger gets destroyed, which is common, l dont think there for anyone but the 'model' enthusiast, those who like to tinker, like me years ago, they are discredited alot because of the small willy complex, mines faster than your so to speak, people dont want to see them succeed, which it sad really, there just another bonus option that some company has taken the time and effort to try and give you for your hobby.
01-09-2008, 06:42 PM
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RE: supercharge
ORIGINAL: beer=food
But the supercharger is 25 US dollars, 85 for a mod, 150 for a new motor, the supercharger is cheapest for the % gains.
But the supercharger is 25 US dollars, 85 for a mod, 150 for a new motor, the supercharger is cheapest for the % gains.
01-09-2008, 08:56 PM
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RE: supercharge
^^^ i was going to say the same thing... its also incorrect to think that they work using forced induction...there are no valves in our nitro motor...the exhaust port is open longer then the intake port therefore most of the compressed air escapes out the exhaust port. you can also say that the hallow part of the shaft compresses the air, which it does, but then again just blows it out the exhaust port before it can combust. they do work, just not good, not even close to good and they are horrible for your engine. the life will be sucked out of it.
Beer=food...why are you supporting them so much even though you think they are a complete waste of money?
Beer=food...why are you supporting them so much even though you think they are a complete waste of money?
01-09-2008, 10:09 PM
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RE: supercharge
ORIGINAL: beer=food
But the supercharger is 25 US dollars, 85 for a mod, 150 for a new motor, the supercharger is cheapest for the % gains.
Its incorrect to 'assume' that all superchargers lean out an engine, that is simply incorrect, some do through poor design, others are far better.
If the compression ratio [ for sake of argument] is 1;10 without a supercharger and is 1;15 with a supercharger, maths tells you, that the supercharger has put that extra energy into the cylinder and that it will achieve greater power [kW] and more torque [Nm] theres nothing spooky about it, its not a mirical, its maths, and they do infact work even on our little 35000rmp nitro engines, why, a simple princible, in our current nitro engines fuel and air is ''sucked'' in, to increase power and responce the only thing that can be done is to increase the stroke, ie more compression, or increase the carby barrel size letting it 'suck' more air fuel in each clyinder cycle, a supercharger does not have the problem of only being able to suck fuel and air at the atmnospheric pressure, ie, only so much air can go through a non supercharged engine without some sort of induction, heres the punch line ,our nitro engines are actually capable of alot more than they do now, so a supercharger or blower or the like, is an advantage for power, get a JB COMP engine test it then supercharge it, and test it again , the gains there are going to be huge if the internal engine design is good.
The oil is in the fuel what goes in gets compressed period, the fact is you need to richen superchargers, because they draw so much more air in, how do you guys tune your top end, lm wondering, because this is rediculas, its the same princible, its why theres a second needle on your carby's, because the faster an engine spins the more fuel and air its going to need, same in a supercharger, so now its set richer, and it 'will' compress more and the bang will be more powerfull, how about you guys explain the actual details as to why it cant work, even though they do and are buyable today ....? Just saying its Bs doesnt cut it ladies, it may not win any races, but they do work. An engine cant rev any higher with one, it will just get to those top revs a hell of alot faster, inj this sport with these engines were still talking hundreds of a second, seriously.
lm not saying there a good idea, because l think there a bad idea for RC , they are bulky, and risk shrapnal going into engine in a high speed crash where the charger gets destroyed, which is common, l dont think there for anyone but the 'model' enthusiast, those who like to tinker, like me years ago, they are discredited alot because of the small willy complex, mines faster than your so to speak, people dont want to see them succeed, which it sad really, there just another bonus option that some company has taken the time and effort to try and give you for your hobby.
But the supercharger is 25 US dollars, 85 for a mod, 150 for a new motor, the supercharger is cheapest for the % gains.
Its incorrect to 'assume' that all superchargers lean out an engine, that is simply incorrect, some do through poor design, others are far better.
If the compression ratio [ for sake of argument] is 1;10 without a supercharger and is 1;15 with a supercharger, maths tells you, that the supercharger has put that extra energy into the cylinder and that it will achieve greater power [kW] and more torque [Nm] theres nothing spooky about it, its not a mirical, its maths, and they do infact work even on our little 35000rmp nitro engines, why, a simple princible, in our current nitro engines fuel and air is ''sucked'' in, to increase power and responce the only thing that can be done is to increase the stroke, ie more compression, or increase the carby barrel size letting it 'suck' more air fuel in each clyinder cycle, a supercharger does not have the problem of only being able to suck fuel and air at the atmnospheric pressure, ie, only so much air can go through a non supercharged engine without some sort of induction, heres the punch line ,our nitro engines are actually capable of alot more than they do now, so a supercharger or blower or the like, is an advantage for power, get a JB COMP engine test it then supercharge it, and test it again , the gains there are going to be huge if the internal engine design is good.
The oil is in the fuel what goes in gets compressed period, the fact is you need to richen superchargers, because they draw so much more air in, how do you guys tune your top end, lm wondering, because this is rediculas, its the same princible, its why theres a second needle on your carby's, because the faster an engine spins the more fuel and air its going to need, same in a supercharger, so now its set richer, and it 'will' compress more and the bang will be more powerfull, how about you guys explain the actual details as to why it cant work, even though they do and are buyable today ....? Just saying its Bs doesnt cut it ladies, it may not win any races, but they do work. An engine cant rev any higher with one, it will just get to those top revs a hell of alot faster, inj this sport with these engines were still talking hundreds of a second, seriously.
lm not saying there a good idea, because l think there a bad idea for RC , they are bulky, and risk shrapnal going into engine in a high speed crash where the charger gets destroyed, which is common, l dont think there for anyone but the 'model' enthusiast, those who like to tinker, like me years ago, they are discredited alot because of the small willy complex, mines faster than your so to speak, people dont want to see them succeed, which it sad really, there just another bonus option that some company has taken the time and effort to try and give you for your hobby.
01-09-2008, 10:09 PM
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RE: supercharge
on are nirto engines, they have kinda a forced induction already, because when the piston goes down and the crank port closes it compresses the fuel and air till the intake ports open, then when they open the new fuel and air rushs in and starts to go out the exhaust port then the back pressure from the exhaust push the fuel and air that went out the exhaust back into the engine before the exhaust port closes.
01-10-2008, 01:13 AM
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RE: supercharge
thats how just about every 2 stroke engine works comp, not just nitros, you'd think if superchargers worked so well, why aren't they putting them on 25k+ jet skies and such... good tuned pipe and the right port configurations will gives you more power then a supercharger will.
01-10-2008, 04:21 AM
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RE: supercharge
e-bay 25 bucks ! my bad oops !
sry bout that one read something wrong there somewhere !
My point is that they do infact work, l never debated they were a great thing, or even a great idea for RC in general , but they do work, people discredit them for the wrong reasons.
My hungover explanation is maybe a bit much for some, fact remains, above all the little details everyone pionted out, you all didnt read it right, where l said, the internal design of the motor counts, not all motors are going to respond to one well, some will respond really good, the ported engine comment is rubbish, port the engine and then supercharge it, fact is you will gain power, over just a ported engine, they do put superchargers on factory cars, there common here in OZ the commodorre has a model, l never said the compression ratio was actually something , l used a hypothetical drag racer, the flimsy pully comment is rubbish, go watch one, and the exaust port is bloody irrelivant, at a point in the cycle the exhaust port closes, yes ? At that point, regardless of how much waste or how inefficient the engine may be fuel econemy wise, at the point of exhaust closure there is more air fuel being crammed in the cylinder than would have been otherwise, because its mostly evaportaed, gas compresses better than oil or liquid, there princible is sound, experiments, basic use by the public, have proven real gains, proven they do work, proven if not really carefull on tuning will damage your engine, now why would you put a supercharger on a jet ski, that just sounds silly, as it does a bit to put one on an RC nitro engine, its a novelty, not for serious racing, there not that efficient, from peoples use, we, RC fans and or drivers have learned that, they are much more effective on big blog nitro's over the small block ones.But they still work.
l used to be on the other side of the fence on this one, for years, then a guy proved me wrong and l ate my words.....
sry bout that one read something wrong there somewhere !
My point is that they do infact work, l never debated they were a great thing, or even a great idea for RC in general , but they do work, people discredit them for the wrong reasons.
My hungover explanation is maybe a bit much for some, fact remains, above all the little details everyone pionted out, you all didnt read it right, where l said, the internal design of the motor counts, not all motors are going to respond to one well, some will respond really good, the ported engine comment is rubbish, port the engine and then supercharge it, fact is you will gain power, over just a ported engine, they do put superchargers on factory cars, there common here in OZ the commodorre has a model, l never said the compression ratio was actually something , l used a hypothetical drag racer, the flimsy pully comment is rubbish, go watch one, and the exaust port is bloody irrelivant, at a point in the cycle the exhaust port closes, yes ? At that point, regardless of how much waste or how inefficient the engine may be fuel econemy wise, at the point of exhaust closure there is more air fuel being crammed in the cylinder than would have been otherwise, because its mostly evaportaed, gas compresses better than oil or liquid, there princible is sound, experiments, basic use by the public, have proven real gains, proven they do work, proven if not really carefull on tuning will damage your engine, now why would you put a supercharger on a jet ski, that just sounds silly, as it does a bit to put one on an RC nitro engine, its a novelty, not for serious racing, there not that efficient, from peoples use, we, RC fans and or drivers have learned that, they are much more effective on big blog nitro's over the small block ones.But they still work.
l used to be on the other side of the fence on this one, for years, then a guy proved me wrong and l ate my words.....
01-10-2008, 06:03 AM
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RE: supercharge
Superchargers are used with quite a lot of success on YS 4-stroke airplane engines( sold from factory with chargers installed) But being four stroke the gains are much higher. A 2-stroke will benefit SOME, but how much I have no idea, but it will definitely be less than a 4-stroke. They also are way more finnicky as far as fuel delivery is concerned and most are pumped( fuel pump). I just dont think the gains would be enough to justify the cost of the charger, I dont think a 2.5 charged would even come close to the 3.3. I really think for the money you would be better off either lightening the rig or going bigger engine.
01-10-2008, 10:16 AM
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RE: supercharge
ORIGINAL: ttoks
thats how just about every 2 stroke engine works comp, not just nitros, you'd think if superchargers worked so well, why aren't they putting them on 25k+ jet skies and such... good tuned pipe and the right port configurations will gives you more power then a supercharger will.
thats how just about every 2 stroke engine works comp, not just nitros, you'd think if superchargers worked so well, why aren't they putting them on 25k+ jet skies and such... good tuned pipe and the right port configurations will gives you more power then a supercharger will.
one way to get more power out of nitro engines, add more nitro to the fuel, bump it up to about 80% nitro, 12%oil and 8% alcohol
01-10-2008, 01:18 PM
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RE: supercharge
man people need to look at my place of residence when i put a figure up, THATS IN AUSSIE DOLLARS, man i am sick of telling people that every single time i mention a figure of money.