The Harley Sound - Howstuffworks
#1
03-25-2006, 10:19 AM
The Harley Sound - Howstuffworks
http://auto.howstuffworks.com/harley3.htm
I am not very mechanical and always wondered about the harley sound. The URL above gives a good explanation for all of those "software geeks" like me that have a harley.
People who know more about harley's than I do have told me that making the TC88 water cooled would change the sound of the bike and it would no longer sound like a harley. I do not see how making it water cooled would change the sound.
I am not very mechanical and always wondered about the harley sound. The URL above gives a good explanation for all of those "software geeks" like me that have a harley.
People who know more about harley's than I do have told me that making the TC88 water cooled would change the sound of the bike and it would no longer sound like a harley. I do not see how making it water cooled would change the sound.
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03-25-2006, 01:10 PM
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03-25-2006, 01:45 PM
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#8
03-25-2006, 07:46 PM
RE: The Harley Sound - Howstuffworks
I am not that familiar with the V-rod. I know it is water cooled.
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In a two-cylinder, horizontally opposed engine, the pistons are timed so that one fires on one revolution of the crankshaft and the other fires on the next revolution -- so one of the two pistons fires on every revolution of the crankshaft. This seems logical and gives the engine a balanced feeling. To create this type of engine, the crankshaft has two separate pins for the connecting rods from the pistons. The pins are 180 degrees apart from one another.
A Harley engine has two pistons. The difference in the Harley engine is that the crankshaft has only one pin, and both piston rods connect to it. This design, combined with the V arrangement of the cylinders, means that the pistons cannot fire at even intervals. Instead of one piston firing every 360 degrees, a Harley engine goes like this:
A piston fires.
The next piston fires at 315 degrees.
There is a 405-degree gap.
A piston fires.
The next piston fires at 315 degrees.
There is a 405-degree gap.
And the cycle continues.
At idle, you can hear the pop-pop sound followed by a pause. So the sound of a Harley is pop-pop...pop-pop...pop-pop. That is the unique sound of a Harley-Davidson motorcycle
--------------------------------------------------------------------
In a two-cylinder, horizontally opposed engine, the pistons are timed so that one fires on one revolution of the crankshaft and the other fires on the next revolution -- so one of the two pistons fires on every revolution of the crankshaft. This seems logical and gives the engine a balanced feeling. To create this type of engine, the crankshaft has two separate pins for the connecting rods from the pistons. The pins are 180 degrees apart from one another.
A Harley engine has two pistons. The difference in the Harley engine is that the crankshaft has only one pin, and both piston rods connect to it. This design, combined with the V arrangement of the cylinders, means that the pistons cannot fire at even intervals. Instead of one piston firing every 360 degrees, a Harley engine goes like this:
A piston fires.
The next piston fires at 315 degrees.
There is a 405-degree gap.
A piston fires.
The next piston fires at 315 degrees.
There is a 405-degree gap.
And the cycle continues.
At idle, you can hear the pop-pop sound followed by a pause. So the sound of a Harley is pop-pop...pop-pop...pop-pop. That is the unique sound of a Harley-Davidson motorcycle
