Toyspeed.org.nz Message Board

by **TygerTung** » Sat Oct 30, 2004 12:02 am

I doubt you'd get a turbo small enough for a 50cc engine.

Look how big the exhaust is, it is about the size of a 50c peice!

by **Mr Revhead** » Sat Oct 30, 2004 9:37 am

ras: it could have pushrods... i think you could be off on your combustion chamber placement, look at where the plugs are. and the join in the head/block. the piston rings wouldnt travel past that join.

then again if its got some weird pent roof type combustion chamber maybe your right.
the things is its hard to guess the actual size of it...

one thing im sure of, fivebobs getting a goood laugh out of this :lol:

by **Rollux** » Sat Oct 30, 2004 9:39 am

A bit off topic sorry, but did anyone see on ESPN the other week the Snowmobile drag racing?? Turbo 1300cc 2 stroke 4 cylinder. World record 1/4 mile on ice 7secs odd!

Put that in your Nifty Fifty!!

by **Mr Revhead** » Sat Oct 30, 2004 9:40 am

i want one!!

by **malc** » Sat Oct 30, 2004 11:17 am

Mr Revhead, Yeah, it could have pushrods,
and as for the combustion chamber, Im just taking a stab in the dark.
I thought it might be a sort of wedge chamber design, but your right, it probably wouldnt go up that far.
I guess we'll only know the truth if we could see inside.
But never the less, Its an interesting little thing, and ive enjoyed trying to work out what the deal is.

by **Mr Revhead** » Sat Oct 30, 2004 11:23 am

and as for the combustion chamber, Im just taking a stab in the dark

arnt we all? :lol:

i wonder what it sounds liek at full noise.....

Caldina GT-T · by **snwtoy** » Sat Oct 30, 2004 11:28 am

Ahh, thank you Ras. .it all makes perfect sense now!

As a valved 2-stroke it would be quite a bit more efficient seeing as you're not losing part of the mixture on the compression stroke! Brilliant!
Some of the lines at the top must be for lubrication to the head/cam.
The only thing I don't understand is that it *looks* like it has a sump so I'm wondering how the reed valve would work without the pressurized crank. Perhaps the intake is valved also, the valves driven off the crank?

by **vvega** » Sat Oct 30, 2004 11:37 am

Ahh, thank you Ras. .it all makes perfect sense now!
As a valved 2-stroke it would be quite a bit more efficient seeing as you're not losing part of the mixture on the compression stroke! Brilliant!

already said that
and the bottom end looks liek any reed valve indution

you soudl have a read iup on how the intake on a late model 2 stroke works
it might help a little

v

by **malc** » Sat Oct 30, 2004 12:06 pm

No worries, snwtoy
to be honest I am not exactly sure on how the intake valve system works on a 2stoke, I just havent heard of many valved intakes on 2 strokes.

But on a different note, chainsaws usually have 2 strokes,
how about a V8 chainsaw!?!?
http://www.skoopy.com/show2.php?id=720&type=VID
Check it!!
found this video not too long ago, its brilliant!

by **Mr Revhead** » Sat Oct 30, 2004 12:11 pm

that link take you to a sign in page

by **malc** » Sat Oct 30, 2004 5:34 pm

Oh really
it should be a green page with " CLICK HERE TO OPEN " highlighted in the middle which is above a thing which says "Send this page to a friend!"

just click on the "CLICK HERE TO OPEN" for the video download.
its well worth it.

by **fivebob** » Sun Oct 31, 2004 12:25 am

The engine is an experimental three cylinder supercharged two stroke made by Ferrari :twisted:

Here's another view

Carina AA63 · by **kingcorolla** » Sun Oct 31, 2004 2:03 am

hmmm, a force induced 2 stroke eh?

..wouldnt majority of this excess charge be lost past the transfer ports, when scavenging the exhaust gas? meh.

..must have thin oil, otherwise excess crankase pressure must bring on abit of oil "churn-age?" maybe a pressurised oil system? ..meh.

i wont question the makings of ferarri

by **trueno** » Sun Oct 31, 2004 9:57 am

http://science.howstuffworks.com/two-stroke.htm

by **vvega** » Sun Oct 31, 2004 10:23 am

got anymore info fivebob
IMO 2 strokes are the pinical of race tecnolagy
but then i alos had a little fit when they changed teh format of gp500 motorcycle racing

v

by **Mr Revhead** » Sun Oct 31, 2004 10:50 am

of course! the red cam cover should have given that away!
new tesstarossa engine maybe? :lol:

any idea on what it was intended for? or was it just an experiment with no actual application in mind? didint they build a 2 stroke v8? i seem to remember a ferrari that was built solely do demonstrate their ideas and capabilities.

by **fivebob** » Sun Oct 31, 2004 12:09 pm

kingcorolla wrote:hmmm, a force induced 2 stroke eh?

..wouldnt majority of this excess charge be lost past the transfer ports, when scavenging the exhaust gas? meh.

not with a cam controlled exhaust system, that way the exhaust can be times so that it's closed when the intake mixture reaches it.

..must have thin oil, otherwise excess crankase pressure must bring on abit of oil "churn-age?" maybe a pressurised oil system? ..meh.

Err, no, like all two strokes the oil is mixed with the fuel, premix or injected into the engine seperately. The cams should have their own oil supply but that wouldn't affect windage.

by **fivebob** » Sun Oct 31, 2004 12:10 pm

vvega wrote:got anymore info fivebob
IMO 2 strokes are the pinical of race tecnolagy
but then i alos had a little fit when they changed teh format of gp500 motorcycle racing

No, unfortunately the only info on the Ferrari Owners site is that it was an experimental engine made by their "Pilotino" engine research division. I've found another photo of a different version of the same engine, which shows the exhaust ports on the top of the engine.

What they made it for I have no idea, but it looks to me to be a fairly large capacity and quite a tall engine. Boat racing maybe? or as Mr Revhead says just to show off their capabilities

by **Aging Hoon** » Mon Nov 01, 2004 8:01 pm

fivebob wrote:Err, no, like all two strokes the oil is mixed with the fuel, premix or injected into the engine seperately. The cams should have their own oil supply but that wouldn't affect windage.

This is not right, have a look at a GM 2 stroke diesel _ oil in sump, overhead exhaust valves, supercharged (some are supercharged and turboed. They are made in 2 cylinder , 3 , V6, V8, V12 and V16

by **vvega** » Mon Nov 01, 2004 8:28 pm

compleatly diffrent engine there
2 stroke diesel's are a totally diffrent kettle of fish

were talking bout petrol 2 strokes
please dont confuse the poor guy

:d
v

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Turbo 2-stroke nothing to do with toyotas sorry

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