theres somethings you need to know about boost bottles, ok, first off, you don't drill your case. its actually your intake block. second of all, you have to answer this for me. if boost bottles don't work, then like they the other guy said, why do they have they for sleds, also, they make them for 4 wheelers, like the banshee and most 2 strokes, you should research the boost bottle a bit more, and you will find out that they do work. ONLY if you make them correctly.
theres a formula to use to make them the right way. and to figure out the correct volume for the bottle.
1cu. in. = 16.3871cc
divide your cc by 16.3871 and you will get the correct cc to use for your motor.
in a nut shell here are some done for you. these are not my formulas, im not taking credit for these, but just posting them for those to read.
bottom line they do work. but they don't create power the thing they do is give you better gas mileage. they create back pressure inside the bottle and send that pressure in to the carb manifold and create a mist from the gas going through the manifold bodyinto the crankcase into the motor. and give you better fuel burn. inturn better fuel mileage. and maybe just maybe a little more lowend. but they don't do anything for mid or topend power. and the down fall to them is they could leak in a number of places. so if you are thinging of running one make sure you bench the bottle to see if it hold a charge of pressure.
the gain you're going to get from one is like 1-3% nothing you'll see in the seat of you're pants. not only that the banshee mainfold is rubber more of a chance for leaks when you mount the 1/4 inch nipple.
i know this they came stock on a rc motor on a .21 size motor in 2003-2004 models. they were used to get longer run times on a tank of gas. so lets say this in a [A] main event you race you off road car for 35 min's and on average you would pit for gas every 5 min's thats 6 pit stops if you could get that to 5 pit stops thats a big advantage over the next guy that has to pit 6 times.
i voted bad. bad because they are never made correctly. people dont calculate the volume they just slap some ghetto azz crap on thier. ive seen m&m bottles, sunny D bottle, a perfume bottle, all kinds of crap. all this just has a displacement into the several hundreds of cc's not 43-49 like they are suposed to. even when they get that part right they never add the displacement of the tubing used as well. like ive seen a couple boost tube is the right size then tubing is ran to put it at the back of the bike to look like a big bike brake resevior or something. once again all this tubing adds to mroe displacemet then the boost box is suposed to.
With all that said DO NOT BUY EBAY BOOST BOTTLES!!! They are made by amatuers and shade tree knuckle heads. 15-20 bucks? Give me 5 and ill kick you in the junk. then when you get up at least youll still have some money left.
Hello, Actually you are wrong. We have a team of tech's here which make our boost bottles exactly to your engine size. Kick me in the junk? nah, our boost bottles will give you the boost you crave. visit www.bis-racing.com for additional info.
Ok, I have yet to test this item out. So I need some input from your guys.
1- Boost Bottles, do they work? I totally understand the workings of this performance MOD but would like some more info.
2- Has anyone made one for them self or is everyone just buying them from suppliers and FleaBay?
3- This MOD looks very cheap and fast so why is everyone not using them?
4- I would like to hear some facts as far as MPH Ratings etc...
Well thanks in advance fellas .
RIDE PURE
Hello, MPH gains can be extreme depending on whom is explaining. It all depend on your gas and weight of the rider during the installation. If you buy our custom made boost kits, there are no VAC leaks (in between the manifold and the bottle fitting) These leaks are vac leaks that most operators report as a downgrade to their pocket bikes.. The whole time the bottle is doing nothing and the engine is sucking air around the fitting. Be sure to get a kit that is PROFESSIONALY installed before giving boost bottles a bad wrap.
Lowe's - saw a little bottle of-----> wd-40 -----> 2 oz.
-----> beautane(sp?)-----> 1.5 oz.
1.5oz curently on my bike, have yet to take off/on and see if it does anything.....
This is because you guys out there are running BS on your engine thinking that all you need is displacement. It must be measured carefully. Please, do not put this junk on your bike and downgrade it.
Hell yeah it is worth it. Without a boost bottle, you are forced to run a double rich mix. This causes hesitation, bogging, etc... it also slows your acceleration. i (we) have been in the pocket bike business since 2003. You can get your boost bottle on our website: www.bis-racing.com
Trust me, you will love the results. I guarantee it. Or I will buy it back from you.
They don't store air,gas,increase mileage.All they do is change the sound wave your intake is making,it only help with throttle response and engine flutter.Stiffer reeds will do the same thing or the juice box is the best bet.most boost kits are not made right.
It's function is to absorb & release pressure pulses within the intake vein, assisting engine breathing. Now an explanation of exactly what goes on involves a lot of physics and a good understanding of fluid dynamics & pressure zones, but can be explained rather easily. During the intake stroke, air is sucked through the intake manifold and into the port at a considerable velocity. Because of this velocity, the air is said to have relative inertia. Now, when the intake valve closes, the kinetically charged air suddenly has nowhere to go, creating a high-pressure area. Naturally, the air wants to release its pressure in the easiest way possible, so it tries to shoot back out the way it came, creating a pressure wave in the opposite direction we want it. Then no sooner dose the wave begin to travel, the intake valve suddenly opens again leaving the motor to try and pull the pressure wave back in again. This dramatically effects low RPM, wastes energy and kills low-end performance. Now the same engine, but with a BOOST BOTTLE. Air goes whistling down the manifold until the intake valve closes. The air, still all charged up with energy tries to escape back up the manifold but is met with a small port that has a residual vacuum. This vacuum being caused by the previous suction of the intake stroke, sucks most of the pulse inside the Boost Bottle, storing much of the pulse’s energy. The intake valve then suddenly opens, creating a low-pressure area outside of the Boost Bottle. The gasses then shoot out of the Boost Bottle, directly into the intake system as a pressure pulse, instead of having to be pulled in by the piston. More air is then also pulled in from the manifold to completely fill the cylinder… Thus giving you an additional boost of power
boost bottle 
Re: Boost Bottles 
Re: Boost bottle 
