Thailand Powerboat Association Engines
Mar 8, 2017 6:01:11 GMT -5
90GTVert, 190mech, and 2 more like this
Post by ThaiGyro on Mar 8, 2017 6:01:11 GMT -5
Hi two stroke fanatics! Thought I would share some fun in the world of powerboat racing in Thailand. We just attended a race not a half mile from our new property. A fun way to spend a Sunday!
These boats are short, and have "longtail" engine/driveshaft to prop delivery. Common here in racing and offshore tour boats. The real fun is that they have two general class breakdowns. Two-stroke and Four. The engine displacement varies a little, but it appeared that the fastest 2 strokes were all Rotax engines...old 370's from my little history. (I think they began as 330's in snomobiles...not truly sure). The big thing is, that they all run a powerful and LOUD expansion pipe. I say pipe...not a chamber! After the divergent cone section, there is...well, just air!
They are rotary valve intake engines. I do not think a half pipe could function if only reed induced, but I have no experience here.
Fun and loud and more fun!
These boats are short, and have "longtail" engine/driveshaft to prop delivery. Common here in racing and offshore tour boats. The real fun is that they have two general class breakdowns. Two-stroke and Four. The engine displacement varies a little, but it appeared that the fastest 2 strokes were all Rotax engines...old 370's from my little history. (I think they began as 330's in snomobiles...not truly sure). The big thing is, that they all run a powerful and LOUD expansion pipe. I say pipe...not a chamber! After the divergent cone section, there is...well, just air!
They are rotary valve intake engines. I do not think a half pipe could function if only reed induced, but I have no experience here.
Fun and loud and more fun!
