Two and Four Stroke Engines

[NordieBoy]

plus i don't know of any 2-smokes bigger that 500cc does anyone else?????

How about the Maico 760 from 1981.

Or the ATK Intimidator 700

Older sidechairs were 2-stroke monsters.
Snowmobiles are the main 2-stroke monster industry nowdays.

[Motoracer]

I saw a classic racer at Pukie with 2 X RD350 engines combined. So that'd be a RD700 engine? Looked wicked and the owner reckones he does over 300kmph on it.

[Motu]

I saw a classic racer at Pukie with 2 X RD350 engines combined. So that'd be a RD700 engine? Looked wicked and the owner reckones he does over 300kmph on it.

Bill Buckley used to drive a midget with a 2 stroke V8 in it - made out of 4 RD350 bottom ends andTZ750 top ends,I remember when he used to drive it at Springs.I'm not sure if Buckley was responsable for the motor or not...it was up on display at Haldanes for a few years.

[Motoracer]

Bill Buckley used to drive a midget with a 2 stroke V8 in it - made out of 4 RD350 bottom ends andTZ750 top ends,I remember when he used to drive it at Springs.I'm not sure if Buckley was responsable for the motor or not...it was up on display at Haldanes for a few years.

Holly shit! I would have loved to hear what that sounded like. A 2 stroke V8...

Oh yea, that's right. I forgot about the TZ750... Does anyone know what would be the all time biggect capacity production 2 stroke motor (for motorcycles only)?

[avgas]

yep those old kettles or wot eva were 750's.
Also saw a few RGV750 conversions.
I love 2 strokes - if its not smokin, then its broken

[NordieBoy]

Does anyone know what would be the all time biggect capacity production 2 stroke motor (for motorcycles only)?

Well it's not production but...
48 cylinders is getting large.

[Motu]

Holly shit! I would have loved to hear what that sounded like. A 2 stroke V8...

It sounded like you'd just kicked a wasp nest - and as scary!! There was a 3 litre capacity limit around then I think,they were using Holdens and Vauxhalls,a Daimler V8 and an Offy too,they were getting long in the tooth and not many other options,which is why they made the V8,but almost at the same time the VW era came in and within a season the only motor out there was a VW.

Before the 2nd World War 2 strokes were very,very ineffient,apart from the Scott (a 700cc twin,with oil pump lube and water cooling,nothing new under the sun) But a couple of German engineers made huge strides in 2 stroke development,they were responsable for the loop scavange system that is still used today,and exhaust technology leading to the expansion chamber,still often called Kadancy after the guy who invented this.(Google would be better than my poor memory,but will give you lot something to squabble about later)Just looked it up,Walter Kaaden,he worked for MZ in the 50s..The DKW 125 was the result - and after the war was one of the spoils picked up by the Allies.Every small 2 stroke built after the war was a direct copy of the DKW,the BSA Bantam,every Villiers powered small British bike,Harley made a version (grease nipples on the mains!) and the first Yamaha's were a DKW too.There is a legend about a race in Europe where a famous East German 2 stroke engineer crashed in a corner and was wisked away never to be seen again - but we saw his work in the Suzuki's.

The 2 strokes got to working pretty good with power valves and water cooling,they are quite easy to ride now with wide power bands like a 4 stroke - but unfortunatly the are still dirty and won't pass emission tests....the technology is there to get around this,but not economicly viable.

[James Deuce]

There is a legend about a race in Europe where a famous East German 2 stroke engineer crashed in a corner and was wisked away never to be seen again - but we saw his work in the Suzuki's.

Degner - it's true, and he was a racer rather than an engineer, but a knowledgeable racer at that. His defection plan got all messed up though.

[Warren]

Also every 50cc scooter is a 2 stroke.

every = 99%+

[Motu]

Also every 50cc scooter is a 2 stroke.

every = 99%+

Good,I never considered the Honda C50 to be a scooter.And the Ducati was a moped.

[Lou Girardin]

A Commer TS3 diesel has the best sound short of an F1 car and, gee, it's a 2 stroke. But a bit bigger than 500cc or even 50.

[Madmax]

degner! he invented the expansion chamber
(he was a two stroke god!)
I love two strokes, but you have to look after them just right,
Big bore two strokes are such fun
have had a ride on a TZ750
(they never made rubber good enough to hold them
on the road) H2R as well
(would love to ride a KR750)
think i was hansford who said, every time i opened the
gas it wanted to jump the fence back into the pits
(amaroo park)

:love2:
then i am bit insane

[merv]

A Commer TS3 diesel has the best sound short of an F1 car and, gee, it's a 2 stroke. But a bit bigger than 500cc or even 50.

You going to talk trucks, how about railway engines? GM made the 710 cubic inch per cylinder V16 2 stroke diesel - that's roughly 11.64 litres per pot or 186 litres total. Now I guess the marine guys will come out of the woodwork and quote their figures.

[2_SL0]

aaaaaaaaaaaaaa, the mighty KX 250. Brings a tear to my eye. (especially as I spent most of my time sitting on the fuel tank to keep the front end down.) Bloody peaky, snappy thing. OOOOOOOOOOOOOH

[MOTOXXX]

if you go to something like
www.howstuffworks.com

they have good pics and explinations for this kinda stuff
and pretty much most things as far as ive seen anyways.