TLB Syndrome

[twostroke]

Bike version:http://www.neatorama.com/2009/08/14/...a-tank-engine/

[Rotten]

12V71TT

If only Mad Max had one of those...



http://www.youtube.com/watch?v=T1XbZYJwsaA


Turn the volume up to eleven!

[twostroke]

Yes...but those are power valves that give the engine variable exhaust port dimensions


The exhaust valves I was refering to were tried on gasoline turbo two strokes and used to completely shut the exhaust port in order to prevent blow by

I was ref. two stroke diesel 6-71's that use a blower feed by a turbo (later gen. versions) to scavenge exhaust gasses and have two to four poppet type valves per cylnder and yes power valves for non diesel.
side note: 6-71= 6 cyl. @ 71 CU.IN. each.

[the_grinch]

most twostroke's have Exhaust valves.

Yes...but those are power valves that give the engine variable exhaust port dimensions


The exhaust valves I was refering to were tried on gasoline turbo two strokes and used to completely shut the exhaust port in order to prevent blow by

[Junkie]

The blowers on 2 stroke diesels are to blow the fresh air in, similar to how crankcase pressure does on a gas 2 stroke.

I'm not sure I'd say "most" either - and it's a very different type of valve than 4 strokes have, while a 2 stroke diesel head looks similar to a 4 stroke head.

[twostroke]

there are more reasonably sized two stroke diesels as well - ever hear of a "4-71" or "6-71" blower? that refers to the blower for two stroke diesels with 4 or 6 cylinders of 71 cubic inches each. There were also plenty of other sizes made, those are just examples...

however, 2 stroke diesels are completely different than 2 stroke gas engines - they roughly resemble gas engines in that they are overhead valve engines, so yes they actually have valves.

Yes they do, and what does the 6-71 do on these diesels?, most twostroke's have Exhaust valves.

[Junkie]

There are turbo charged two strokes, they have exhaust port valves to limit the blowby issue that junkie mentioned

However, those motors are fuking super expensive and needlessly complex for very little performance gain.

The only turbo two strokes that I have ever heard of being feasable are the giant two stroke diesel ship motors

there are more reasonably sized two stroke diesels as well - ever hear of a "4-71" or "6-71" blower? that refers to the blower for two stroke diesels with 4 or 6 cylinders of 71 cubic inches each. There were also plenty of other sizes made, those are just examples...

however, 2 stroke diesels are completely different than 2 stroke gas engines - they roughly resemble gas engines in that they are overhead valve engines, so yes they actually have valves.

[twostroke]

There are turbo charged two strokes, they have exhaust port valves to limit the blowby issue that junkie mentioned

However, those motors are fuking super expensive and needlessly complex for very little performance gain.

The only turbo two strokes that I have ever heard of being feasable are the giant two stroke diesel ship motors

Oh don't get me started:0.

[the_grinch]

There are turbo charged two strokes, they have exhaust port valves to limit the blowby issue that junkie mentioned

However, those motors are fuking super expensive and needlessly complex for very little performance gain.

The only turbo two strokes that I have ever heard of being feasable are the giant two stroke diesel ship motors

[Junkie]

Why would this not work (in theory)?

you end up blowing the charge out the exhaust port.

[beauregard]

good luck turboing a smoker

Why would this not work (in theory)?

[Junkie]

I've got a turbo from an 82 seca turbo kicking around. Overbored + turbo CR500 = FUCKING AWESOME?

good luck turboing a smoker

[the_grinch]

Wiseco has all the pistons you need

[epim]

I've got a turbo from an 82 seca turbo kicking around. Overbored + turbo CR500 = FUCKING AWESOME?

[Junkie]

Why would you need an oversized head? Not like it's that hard to do the machine work on the current one to make it work better with a larger bore.

You can get a .25 or .5mm over piston from Honda, I'm sure larger options are available from other sources.