Two and Four Stroke Engines

[speedpro]

easy to tell difference if you hear ring-ning-ning-ning-ning you gots a 2-smoke and if it sounds like your mothers sewing machine you got a 4 stroke (250). plus i don't know of any 2-smokes bigger that 500cc does anyone else?????

[speedpro]

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.

And the V4 made from IT490s and an IT250, I think. Bob and Bill did the motors.

[speedpro]

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.

Supercharged as well I seem to recall

[speedpro]

I did some work on a ship once. The engine was a 2-stroke, more or less two stories high, 9 cylinders, triple turbo - with exhaust valve in the head. The bore was about 4ft and the stroke at least 6ft. It made max power at 180rpm, red line at 200rpm and idled at 2rpm. Each turbo was about 3ft across. Only the rear three cylinders were used when in harbour. It was started with a key just like a car and even had a huge ring gear and starter motor on one end. It was something like 17,000shaft horsepower, at 180rpm so HUGE torque. I could be wrong on the horsepower figure, it was a long time ago.

[Bonez]

Has the GT750 been mentioned yet?

[Bonez]

Oh and I see rotaries haven't been mentioned

[Motu]

And the V4 made from IT490s and an IT250, I think. Bob and Bill did the motors.

I didn't know about those - what were they in?

I had the TS3 as my avatar for awhile and we had a highjack discusion about it on some thread.The best sounding motor ever made.

[NordieBoy]

Commer TS3 Hmmm, an interesting engine.

[vifferman]

Easiest way to tell between the two in most cases is a 2 stroke has a whiney sound.

That must mean that the VifFerrari is a two stroke! I must remember to put oil in the tank.

easy to tell difference if you hear ring-ning-ning-ning-ning you gots a 2-smoke and if it sounds like your mothers sewing machine you got a 4 stroke

So which is it? The VifFerrari sounds a bit like a sewing machine (it certainly hums). So maybe it's a 3-stroke then ?!?

[vifferman]

Oh and I see rotaries haven't been mentioned

I was waiting for Motu to mention the Auto Union 2-stroke car. A friend at school had one of those - quite good, but no engine braking.

[Motu]

I was waiting for Motu to mention the Auto Union 2-stroke car. A friend at school had one of those - quite good, but no engine braking.

Shit! - I haven't seen one of those for a hell of a long time...they took a D16 sparkplug and we kept a cleaned set on the shelf for our DKW customer to get a quick swap done.I used to drive around in a Daihatsu Max of my sister in law's,they had a 360cc twin and went bloody well,but it dropped like a stone downhill with drum brakes,no booster and no engine braking,you needed a strong right leg!

[thehollowmen]

Sigh. I must be getting old.

I shall wear the bottoms of my trousers rolled...

You must be if you're quoting something writen before 1917

Guess you can also recognise my handle then? :-P

[cycosis]

2 strokes are beta but cost more

[Bonez]

2 strokes are beta but cost more

If so does that mean you get more m/c for your dolllar if you buy a 4-stroke

[Sniper]

So as to blend in with today's yoof, you will need to make certain one leg is rolled higher than the other depending on your eastside/westside allegiance

Yes and you must wear different coloured socks pulled up as high as they can go