Honda Spree and Elite 50 Forums

Thank you for all the pictures.
I know the the differences between a belt driven supercharger and a exhaust driven supercharger (turbocharger).

I am just letting YOU know, A turbo is a supercharger, it is just a different design.

A turbocharger, or turbo, is a gas compressor that is used for forced-induction of an internal combustion engine. A form of supercharger, the turbocharger increases the density of air entering the engine to create more power. A turbocharger has the compressor powered by a turbine, driven by the engine's own exhaust gases, rather than direct mechanical drive as with many other superchargers.

That's not food, it's cake.
That's not a plant, that's a flower.
That' not an animal, that's a dog.
That's not a rectangle, it's a square.
that's not a supercharger, it is a turbocharger.

GET IT? The belt does not make it a supercharger.

Greetings:

Semantics and geometry aside, both devices perform the same function: Positive-pressure intake charge. Increasing the number of molecules of atomized fuel mixed with air per power stroke results in greater BMEP, and therefore more horsepower-per-liter of displacement. Kompressors have been on the ragged fringes of motorcycling for a very long time.. Renault patented a TurboCompressor in 1902, and their use in aviation (where high altitudes diminish the O2 content of the air) followed almost as soon as internal combustion engines took flight. (See Link below)

Belt-driven compressors are called superchargers - correct for both types, by the way. Powered by a turbine in the exhaust flow, they're called turbo-superchargers or simply Turbos. Obviously they look different, just as steam locomotives look nothing like Diesels, yet they both pull trains. Neither type makes any sense whatsoever on a 50cc two-stroke mounted under a plastic-bodied flexi-flyer frame. I guess that's why the concept is so intriguing.

soo what makes it a supercharger? i guess im confused although ive owned all 3 variants and they all act completely differant.. and the compressor maps are totally different from a turbocharger and a supercharger of similar displacement. the mechanics in the inside of each unit are also completely different, even the pressure handling is totally different. The turbo uses a blow off valve (normally closed) and waste gate, the supercharger uses a bypass valve (normally open) and uses a pulley size equation to regulate pressure levels. * even a roots style blower doesnt compress air, it stacks it. calling a supercharger and turbocharger the same thing is like saying nitrous oxide is in the same category because it forces more oxygen into the combustion chamber (i have a nitrous car also) but i guess we will agree to disagree and ill continue to run my procharger turbocharger my TD06 20G supercharger and my NOS brand twin stage 400 shot superturbocharger HAHAHA!!!

i will say after reading Wikipedia (which anyone can alter) that early variants are simular but modern units are totally different animals. the only thing they have in common is that a cyntrifical supercharger and a turbo compress air, but a roots blower stacks it.

Greetings:

One Fast SS axt:

soo what makes it a supercharger?

What makes it a supercharger is that the device increases the pressure of the intake charge, concentrating more molecules into the same space. "Super" means Above Atmospheric pressure. "Normally-aspirated" engines run at a bit of a vacuum (negative pressure) on the Intake side. Supercharged engines, whether powered by belt or turbine, run at positive pressure. More gas, bigger stronger Boom. I didn't invent this stuff, read the links.

ferchja wrote:Now maybe someone has designed a 2-cycle engine with a turbo, but please explain the physics behind it. Not that it was done.

It has been done. Saw a 50cc turbo in a Bonneville record attempt setup. The turbo placement looks weird but makes some sense: It's bolted on after the expansion chamber, so the pressure effects of a 2-cycle aren't totally screwed up. Check the images on this site:

http://www.buddfab.net/buddfabhomepage.html

EDIT: Found a better pic of the motor -->



EDIT #2: I should read the full thread before posting. This motor's lookin' pretty familiar.

Did anybody notice just how small that turbo is for the 50 cc motor? Tiny is a pretty good description of it's size.

And the carb has a power jet on it too.

You know, that setup could be more viable in a street application if the expansion chamber was based off something like a Proma or Technigas circuit-style pipe...

that setup would work, just put the exhaust feed out of the side. just have a chance of getting burned, but with something like this it would be purpose built not realy a hey lets go for a cruise!!

If you want a boost on your scooter get this http://cgi.ebay.com/UNIVERSAL-NITROUS-K ... 4ceea769bb although it might f*** up your scooter

Here's what it says in the small print.

"Disclaimer:
Riding a gas scooter could be dangerous and serious injury or death is possible. Wear an ANSI or Snell approved helmet at all times when riding a gas scooter. Be sure to always wear the chin strap securely buckled. Failure to wear an approved helmet may result in serious injury or death. Wet weather impairs traction, braking, and visibility. The risk of accident is dramatically increased in wet conditions. Riding at dusk, after dark, or at times of poor visibility is dangerous and can result in serious injury or death since cars and other vehicles may not see rider. DO NOT USE ON PUBLIC ROADWAYS! Inhaling the contents of the nitrous tanks will result in severe brain damage, or even death. We are not responsible for any mishaps to rider / purchaser. By buying this item, you are over the age of eighteen. (21 in Ohio) Rider/buyer and parents accept all risks."

how about you guys get "real jobs" spend mega bucks on engines then you can run your mouth like me but you still can't beat me

maddog wrote:how about you guys get "real jobs" spend mega bucks on engines then you can run your mouth like me but you still can't beat me

I don't have to beat you. How many National High Point Championships do you hold and are there any speed records with your name on them. I have 3, where are yours, loud mouth?

Pretty sure that Bear was faster too!

Hey, Guy Le Douche! Maybe some of us aren't too worried how fast our scooters are and are more interested in the engineering behind a trick setup than talking trash about our purported achievments, which persist in remaining nebulous at best.

How about I have a decent job, seven scooters, four cars, three mopeds and two motorcycles. Who says I need to tune the Spree for ultimate performance? If I need something faster or slower, I can grab a different set of keys.

maddog wrote:how about you guys get "real jobs" spend mega bucks on engines then you can run your mouth like me but you still can't beat me

I have thought about getting one of those "real jobs", but then I wouldn't have time to play with all my wonderful toys.

I had several real jobs, but I retired to play for free.

Both with 2 strokes.

Only ran 90+ mph


This on ran 132+mph