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Old 06-27-2005, 07:52 AM   #11
ValkBandit
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Default Re: Monday's Science Lab: V-twin Engines 101

slow news day?
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Old 06-27-2005, 08:22 AM   #12
longride
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Default Re: Monday's Science Lab: V-twin Engines 101

I guess you haven't heard a VTX with straight pipes yet!
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Old 06-27-2005, 08:31 AM   #13
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Default Re: Monday's Science Lab: V-twin Engines 101

Calling a boxer a V twin? You tard!!
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Old 06-27-2005, 08:41 AM   #14
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Default Re: Monday's Science Lab: V-twin Engines 101

Imagine a Guzzi-style V-twin with a 179 degree angle between the cylinders. Still a V-twin, no? Now, add a degree. Arguably not a V, but for the discussion of forces and vibration, the description of the flat twin as a V-twin can be made, IMO.
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Old 06-27-2005, 08:42 AM   #15
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Default Re: Monday's Science Lab: V-twin Engines 101

Same can be said about the parralel twin. Wheres the V in that???
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Old 06-27-2005, 08:43 AM   #16
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Default Re: Monday's Science Lab: V-twin Engines 101

Can't say as I have, but then I'm not a fan of straight pipes on any street bike.
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Old 06-27-2005, 09:48 AM   #17
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Default This is why twins won't go away...

Inline fours don't balance too well either and their vibration tends to "grate" the human body more than a twin's does. Water cooling helps the issue of one cylinder behind the other and a twin's power output characteristics are arguably much more usable on the street. Right now I ride a V-four (I'd love to see some balancing schematics on that) but am thinking of switching to a big twin next. BTW, the most inherently balanced engine configuration out there is the inline six with 30 degree crank. That's why many luxury cars (BMW, Jaguar and, until they recently switched to counterbalanced V6's, Mercedes) use them. No counterbalancing required and they're smooth as silk!
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Old 06-27-2005, 09:50 AM   #18
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Default CORRECTION

Make that an inline six with a 60 degree crank! I forgot my crystal meth this morning...
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Old 06-27-2005, 10:18 AM   #19
sportbikebandit
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Default Re: Monday's Science Lab: V-twin Engines 101

Interesting article, Steven, great lunch time reading.
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Old 06-27-2005, 10:36 AM   #20
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Default I agree

The loping rythm of a V-twin is much more easy on the senses over long distances. Inline 4s can be very buzzy and don't most of them need balance shafts too?



My current stable of cars, trucks and motorcycles includes:



45 degree V twin

90 degree V twin

inline 4

inline 6

V-8



And yes there is nothing as creamy as an inline 6. It's a shame that Mercedes and Lexus have both dropped them in favor of V-6s. Mostly likely becuase v -6s can be produced on a V-8 production line and they are easier to package.
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