1000cc two stroke

[pete376403]

Them was diesels, but, was they not. Diesel is easier. Didn't the Deltic use sleeve valvves. Mr Motu is the expert on the Deltic.

Nope the Deltic used ports in the cylinders to get the gas in and out. Supercharged of course. There was very clever timing of the cranks to get the appropriate ports open at the right time, and two cranks turned one way and the third crank turned the opposite. Check this link to see an animation http://www.wis.co.uk/justin/deltic-engine.html
The deltic (and the TS3) were diesels but now that direct injection of petrol is more manageable, possibly a Petrol fueled deltic could be built.

Getting back to the two cylinder twostroke bike motor, another layout that could be considered is the tandem twin, as used in the Kawasaki KR250 and KR350. Very successful in their day, many World Chams in GP level riiden by kork Ballington. MakAkes a fairly long motor and air colling would be an issue for the rear cylinder. Water would solve most of the cooling issus, and if the cranks were stacked diagonally, the gearbox shafts could be tucked underneath the rear crank (But the the engine become too tall)

[DEATH_INC.]

Getting back to the two cylinder twostroke bike motor, another layout that could be considered is the tandem twin, as used in the Kawasaki KR250 and KR350. Very successful in their day, many World Chams in GP level riiden by kork Ballington. MakAkes a fairly long motor and air colling would be an issue for the rear cylinder. Water would solve most of the cooling issus, and if the cranks were stacked diagonally, the gearbox shafts could be tucked underneath the rear crank (But the the engine become too tall)

That's exactly the layout I've been talking aboot, just with the cylinders angled a bit.....it won't be too tall as it's a 2 stroke, so the extra height from moving the crank up is countered by having no big fourstroke head with cams 'n stuff.....and I'm pretty sure the last aircooled big honda was the 480, so this'll be watercooled.

[F5 Dave]

Rotax Tandem twin would have preceded & outlived those, with same architecture - used for GP bikes (a friend has one) but largely in Karts & snow etc.

[F5 Dave]

Bit of topic ,,but still bike mods.
Was out the other day ,and spotted a couple of trikes.caught up with the owners .a older man and lady just out riding.
the trikes were both suzuki 1500.
apparently there is a guy in Taupo who converts bikes into trikes.
these were shaft models with a shortened holden diff in them..
looked quite kool accuatly
comfy and lots of room to store your goodies

How to destroy a motorcycle & combine a vehicle with all the disadvantages of a car & all the disadvantages of a motorcycle wrapped into a tasteless evil handling aborting of a creation for those who feel that they don't really want to ride a motorcycle any more. Buy a car would be my advice.

Or a van. A least you can get your dirt & race bikes into it.

[Pixie]

I wonder if anyone's ever built a two stroke Lanchester engine?

Horizontally opposed, piston heads facing each other, with the combustion space between them, and a crank at each end . Would have to be big bang firing but the induction and exhaust should work OK. And that would be a BIG bang.

18 cylinder 36 piston twostroke:

[pete376403]

Thats a Deltic.