Isn't that the design that has a considered weakness due to no center crank bearing? Never owned one, can't speak to them personally, just what I've heard and read.Yes.
Isn't that the design that has a considered weakness due to no center crank bearing? Never owned one, can't speak to them personally, just what I've heard and read.Yes.
Well, there's theory and then there's reality. The reality is that there are untold numbers of those engines out there that are decades old and still running fine. Meanwhile there are not piles of broken crankshafts from them in junkyards, or at least I've never seen them if there are.Isn't that the design that has a considered weakness due to no center crank bearing? Never owned one, can't speak to them personally, just what I've heard and read.
Totally aware of the Harleys, worked on them for years but their design is a bit different and really beefy compared to some pictures I've seen of Brit cranks, but as you say the proof is out there and not excessively in the junkyards.Well, there's theory and then there's reality. The reality is that there are untold numbers of those engines out there that are decades old and still running fine. Meanwhile there are not piles of broken crankshafts from them in junkyards, or at least I've never seen them if there are.
Also, Harley V-twins have two pistons sharing a single crankpin with no center bearing, and some racers build those to 300+ horsepower with superchargers and/or nitrous.
Well the c360 is a simpler set up, it can be easier to get adequate fueling from say a s ingle carb down to the longer intake interval, and the power strokes are far closer together giving a more linear deliverey. This as the trade off in the vibes as the two pistons stoping and starting together etc . the 180 is posite and cansels out the mass with the other piston but its thus transmited into horizontal vibes and more rotational vibe rather than shaker of the 360.My Versys 650 has a 180 degree crank and it's a great engine. It doesn't quite have the character of the 90 degree V-twin in my old SV650 but it's still a great engine. I think the uneven firing order makes it feel somewhat like a V twin at lower RPM. I don't see what advantage there would be to a 360.
I have owned 4 parallel twins and three V Twins. I never thought about the crank angles when I owned them until my present Versys. My first bike was a KZ400. At around 62 MPH it became a jackhammer. The rest of the twins I have owned have been pretty smooth. The V twins had the most character but but the engine in my Versys has a good feel to it as well. It has a broad torque range and revs quickly.I love all this discussion, and I wish I could ride a 270° twin because I love twins. I've owned both 360° and 180° twins and they both have the benefits and sound styles.
KZ400? ASAICB are 360 Degree. The old XS2 650s etc were the same. You did get the Brit bike vibes which either you loathed or absorbed i was just primative and knew no better. n But i will say to of my all time favourate motorcycles were both 360s a tigerT 90 350 and a tiger 750 TR7V 140 , both were single carbs funily enough.I have owned 4 parallel twins and three V Twins. I never thought about the crank angles when I owned them until my present Versys. My first bike was a KZ400. At around 62 MPH it became a jackhammer. The rest of the twins I have owned have been pretty smooth. The V twins had the most character but but the engine in my Versys has a good feel to it as well. It has a broad torque range and revs quickly.
the big two strok twins are an awesome motor, Did several alpine tours on a Suzuki T500 and a great engine for touring . The Suzuki did have a buzz y vibration to it, and like many of the two stroke twins back then, after a prolonged thrash , you arrived at your destination and the zero vibes off the bike made you feel flat as a sack it used to feel like the world had stopped suddenly. .Two stroke big bore twin.
Wait that wasn't in a bike. I guess 270 parallel twin since that's what I am likely going to have the most miles on in a couple weeks.
I've had two 600cc Skidoos and one 850. That 850 is rated for 165hp and could go zero to "oh shit" faster than I can comprehend.the big two strok twins are an awesome motor, Did several alpine tours on a Suzuki T500 and a great engine for touring . The Suzuki did have a buzz y vibration to it, and like many of the two stroke twins back then, after a prolonged thrash , you arrived at your destination and the zero vibes off the bike made you feel flat as a sack it used to feel like the world had stopped suddenly. .
I rade a 1974 RD200SX and even though it was a small st twin it had that zingy buzzy vibe to it and had similar outcome. Strange but Never felt the vibes to the extent on R5F 350 yam or RD400 or RD350 LC VPVs. The cT500 and the RD200SX just seemed to be harsh in the felt vibrations.
An Engine i am interested in, and one if it ever becomes proper mainstream could be the salvation of internal combustion in motorcycles and cars/ trucks /vans at any rate.