This can't be real......

[Evo]

I was browsing for parts and I stumbled upon this www.mbe-motorsports.com/catalog/product_info.php/cPath/19_106_2/products_id/265
I don't know if this would work. I am sure there are a lot of upgrades prior to doing so if it did but I do have to say a turbo on a 50cc scoot would b one bad@$$ toy. Let me know what u guys think or if anyone has tried this.

[90GTVert]

It's very real, but it's not very practical. You need to do some planning and custom fab and even if you get it right it's probably gonna have a hard time making any boost on a 50cc. It would be better suited on a 150cc, and even then they don't seem to do that much. Motor mods are more effective. IMO the turbo is for after you've done every decent engine mod and just want something for show. If you wanted to go fast you'd spray it instead.

[2strokd]

There are a few builds out there with turbo,s ive seen. Some work well, and like Brent mentioned, some are more for show i guess.

Here is one of the few ive seen that really work!

[90GTVert]

That Tmax is bad... of course it's also just a little more than 50 or 150cc.

[tango]

I've been seeing these things for quite a while. That site has them for a bit mroe than I have seen them, though. There is no mention made of any fuelling that would be required (jetting, fuel injection, etc) but I suppose the buyer should be aware. This site below has everything you would need though (including fuel injection systems to complement the turbo), for less.

www.ecotrons.com/Small_Engine_RHB31_VZ21_turbocharger.html

NOTE: For the uninitiated, this isn't for our 2-stroke engines. Can't turbocharge those, I'm afraid.

[90GTVert]

You can turbocharge a 2T, but it's beyond what most people would ever want to get into. So is turbo-ing a 4T scooter in most cases. The land speed record holding 50cc is a turbo 2T (I guess it's still the Buddfab streamliner?). High Gain Tuning also built a 2T turbo. Beautiful work.

www.scooterinvasion.net/forum/viewtopic.php?t=1923&postdays=0&postorder=asc&start=0&sid=b05bd07f85239eaa7f31940ee9e0f9f9

[reveeen]

this isn't for our 2-stroke engines

When I was a wee egg all Detroit Diesel engines were 2 stroke supercharged engines.... emissions, and fuel mileage, concerns put a stop to that (late 80's).

The drag racer's blower of choice, the 6-71, originated on the 6-71 (6 cylinder/71 series) Detroit Diesel engine.

en.wikipedia.org/wiki/Detroit_Diesel

[90GTVert]

A friend of mine is a huge diesel fan and gladly informed me of all of that long ago. lol Theres some old sprayer truck that goes buy and every time he's here he gives me a raspy "Detroit" and a grunt. :laugh:

[tango]

2 stroke diesels are vastly different from ours and they pretty much require supercharging to work. They have exhaust valves and do not have fuel/oil mixing systems. They are in fact wet sump like a 4T. The intake port is opened as the piston goes down and the supercharger forces air in. As the piston goes back up it closes the intake port (sounds familiar) and then the piston compresses the air as it approaches TDC. At the predetermined time, diesel fuel is injected and the fuel/air mixture is ignited, forcing the piston back down. Shortly after ignition the exhaust valve opens, allowing the burnt gases out. The intake port is exposed by the piston again and the supercharger forces air in again, but the incoming air also assists in exhaust scavenging through the still open exhaust port. As the piston starts up again the exhaust valve closes and the process repeats itself again. Pretty cool.

There is no reason why a 2T couldn't function this way too, but it would certainly have to be direct injection. I suspect this is a similar system to the Orbital gasoline 2T. No proof, mind you.

The turbo 2T that 90GTVert pointed to is interesting, but doesn't look much like a Mina. If I'm correct that engine is from an Aprilia RS50. I was working off what was told to me by another site on the matter (I just read the comments, but didn't ask any questions), and figured that the arguments there were logical. Maybe I need to sit for a moment and think this one through for myself or I'll NEVER sleep tonight! LOL!

[jmkjr72]

there is a killer carbed vespa that runs a turbo out there that thing is crazy fast
yeah going fi will help with the needing extra fuel issue of a turboed 2 stroke
and yes that is a morini water pump on that engine
the rs50 used minarelli morini and piaggo engines it depedns upon the year

i have pondered doing a turboed mina engine when the funds are there

[stepthrutuner]

Can't a good pipe produce as much as 7 psi in 'recharging' pressure? So, in a sense, all two strokes with a well designed expansion chamber type exhaust can be said to be supercharged. A well designed and executed two stroke/exhaust setup is a thing of elegant simplistic beauty.

[tango]

I think I've figured out where my previous information regarding turbocharging Minarelli 2 strokes was in serious error. The idea the (ill-) informed poster was making was that a turbo would simply push the fuel/air mixture out the exhaust pipe. What I failed to take into consideration was that as the reed valve opens the intake port would be closed off by the piston as it moves upwards. That would mean there would be enough time and opportunity for the turbocharger to force the charge in. Where the problem comes in would be to have a system where the reed valve is able to properly seal allowing the piston to move the mixture into the combustion chamber. Clearly the force of the doanward-moving piston would have to be greater than the incoming boost. <scratching chin> Do these guys who turbocharge Minas use standard reeds or are the valve arrangements mechanically operated?

[lshigham]

I know HGT used a stock reed configuration.