superchargers for rtr's

[bsmtboy2]

I found this in a car magazine i just received today. It looks promising but i think this negates the rtr status. Here is the link they also have nitrous injection systems too..........http://www.rbinnovations.com/category_s/74.htm

 

[opio]

I would love to see some one use one and give a truly honest report!

 

[camaroboy383]

k,, guy's.... honest review,, here go's....

these are old news.. had one on a pro boat miss bud when it first hit the market...neat??? yes... effective???hardly...a nice pipe is a supercharger in it self...rb was so new i had to send them the boat as they had no bracketry available so it had to be made.. i did extensive testing with it... the only gain i saw was when i turned the pulley down so it was around 70-75% over driven.. saw a whopping 9 tenths to a whole 1 mph gain on radar,, with a stupid rich high speed...it made the engine respond some what better in the low end but nothing you couldnt get out of a ls needle..... dollar for dollar id rather make a nice button,,see more out of that for sure....

my honest opinion.......not worth it,,just a gimic...

alden

 

[camaroboy383]

oh,,, as far as using juice on the nitro engines it does work,,actually pretty well as its a oxidizer....i could see it being a issue in a boat though..you really would only want to use it with a good load on the engine or it will proly over rev faster than you like and boom...you would have to over prop the boat and run saw passes,, cause its not ideal for heat racing,,where you want the engine to be free reving but biting...

 

[misshydro]

oh,,, as far as using juice on the nitro engines it does work,,actually pretty well as its a oxidizer....i could see it being a issue in a boat though..you really would only want to use it with a good load on the engine or it will proly over rev faster than you like and boom...you would have to over prop the boat and run saw passes,, cause its not ideal for heat racing,,where you want the engine to be free reving but biting...

for the waisted money to blow on these gagets .its been hastedout about this subject matter for three years..,your better off buying a good motor and have mods done to them to get the power and speeds you want...oh plus a very good tune pipe aka the supercharger...

 

[william couch]

ya they r def a waiste of money. dont get one.

 

[chris1088]

The supercharger on a 2 stroke is a joke.As far as nitrous you think you have a hard time finding the needle now.....add nitrous to the mix. Get a good tune pipe and you will be happier .

 

[camaroboy383]

careful now chris how you put that first line,, yes the rb charger is a joke on our nitro 2 strokes... but the concept of charging a 2 stroke isnt really that far out of this world..actually 2 strokes charge quite well wether it be a supercharger or turbocharger..dont get me wrong,,, some engines will adapt to the boost better than others... mainly rotax engines will like it the best as there is a intake valve... i have ice drag snowmobile over here i made that has a k03 turbo off of a 98 vw passat,,makes 6 lbs of boost,and dont take long to make it... also seen first hand a belt driven supercharger on a tripple,,thing made 11 pounds of boost and hauled the mail doin it...point is supercharging a 2 stroke really isnt to much of a joke....

alden

 

[william couch]

it kinda dont work for rc boats, maybe snow mobiles and other thing bigger. just not in rc boats. i does look cool though

 

[camaroboy383]

yes it certainly does look cool....... wouldnt be a bad thing for a shelf queen,, never hurts to have some eye candy layin around....

alden

 

[william couch]

lol i have some of that stuff. it sucks dusting. lol.

 

[Hydro Junkie]

We have seen these things before and they have been a waste of time. Not saying that they won't work on something larger, like the afore mentioned snowmobiles, but for an R/C, the power loss and extra weight make them not worth the effort. People have asked about using them on their race boats only to be told the super charger would be illegal, so save your money, time and frustration for better projects

 

[moparbarn]

careful now chris how you put that first line,, yes the rb charger is a joke on our nitro 2 strokes... but the concept of charging a 2 stroke isnt really that far out of this world..actually 2 strokes charge quite well wether it be a supercharger or turbocharger..dont get me wrong,,, some engines will adapt to the boost better than others... mainly rotax engines will like it the best as there is a intake valve... i have ice drag snowmobile over here i made that has a k03 turbo off of a 98 vw passat,,makes 6 lbs of boost,and dont take long to make it... also seen first hand a belt driven supercharger on a tripple,,thing made 11 pounds of boost and hauled the mail doin it...point is supercharging a 2 stroke really isnt to much of a joke....

alden

alden, a supercharger on a TRIPLE ?? i've got a very early '72 kawi h-2 (frame #284/engine #304), it's been to denco (r.o. #181).... couldn't imagine how insane a supercharger would be on it. it's crazy enough now, for a street bike. besides, being all VERY low #'s, i don't really want to mod it too much B) .

 

[dwilfong]

that system looks real nice.

Might work real good on a 4 stroke eng in a boat.

 

[camaroboy383]

for sure leave it alone robin,,,the charger needs all kinds of add ons to make it safe to run as well as turbo's... supplimentary fuel is the most important,,, typically activated by a hobbs switch...timing will have to be retarded,,and so on,,could go on for days about the things needed...that bike is good the way it is,,and you of all people know that..

alden

 

[scootertrash]

i would rather buy an nos system

 

[chris1088]

careful now chris how you put that first line,, yes the rb charger is a joke on our nitro 2 strokes... but the concept of charging a 2 stroke isnt really that far out of this world..actually 2 strokes charge quite well wether it be a supercharger or turbocharger..dont get me wrong,,, some engines will adapt to the boost better than others... mainly rotax engines will like it the best as there is a intake valve... i have ice drag snowmobile over here i made that has a k03 turbo off of a 98 vw passat,,makes 6 lbs of boost,and dont take long to make it... also seen first hand a belt driven supercharger on a tripple,,thing made 11 pounds of boost and hauled the mail doin it...point is supercharging a 2 stroke really isnt to much of a joke....

alden

Im sorry to have put it that way .I should have said Supercharging on a 2 stroke glow/nitro fuel engine is a joke.If you have some type of a valve to hold the boost pressure in the cylinder super or turbocharging will work on a bigger engine.There is more to it than just valves but i,m not going to get into how a supercharger or how a 2 stroke works no need to.I had a good buddy that had a 650cc 2 stroke dragbike with a turbo on it that ran a 10.96 @98.3mph and at 5,280 above seelevel.So i do know that charging a 2 stroke is not a joke and will work.My point was that dont waste your money on somthing that will not work on R/C boat engine.But i do have to agree that the little superchargers do look cool on the engines.

 

[misshydro]

i would rather buy an nos system

that another waste of money too... thats my opion...supercharging&NOS both will shorten your motor life one way or another..one by wearing the parts out quickly and the other is KABOOM!!!!!Ron Olson told a guy up in his area had a supercharger in his boat and it blown the bottom end of the motor and boat rightout..parts are some were in the lake...superchargers&NOS are better suited for four stroke engines..

 

[Ron Olson]

Actually it was a nitrous bottle fed 7.5 OB tunnel that tossed parts all over the lake.

Putting a blower on a 2-stroke negates what the tuned pipe does as it pushes the unburned fuel through the exhaust and doesn't come back in. Setting needles are a pain with the blower. Next, if you look at the graph that they used you wouldn't see much of a gain anywhere, nothing that a well-tuned engine couldn't do. Dyno's can be played with just like any other thing. I could put an untuned engine on one, get the numbers then tweak it to get a better set. The only gains that will be seen will be in RB's bank account.

 

[camaroboy383]

ron,,,bet she was singing a high note though.... well right before the sound of parts hitting the water... :lol: that was exactly my point earlier in this thread.... you would need to load up the engine some how,,,,as soon as the juice comes in they will over rev faster than you can let go of the throttle...plus like you said impossible to find a needle as it needs loads of fuel on the juice to compensate,,,,then off the juice you have a engine that doesnt want to run cause its so pig rich... a wet shot would be in order,,,, problem is how would you introduce the extra fuel.....

alden