Quote:
Originally Posted by Steve Tinker
Didn't I read somewhere about a natually occuring harmonic vibration in the flat 6 engine design that happens at around 3,000 rpm?
I've always had it in the back of my head to drive either just below or just above the 3,000 rpm threshold - there again at my advanced years, I could be talking out of the back of my head too......
But the everyday sweet spot must be in the 3,500 to 4,500 rpm pulling through the gears - very addictive!
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75% of my driving is on LA freeways with the cruise control set @ 73mph & 2900rpm.
After rebuilding my engine & balancing all recipricating parts & flywheel & pressure plate, I was amazed at how much smoother the engine feels & sounds. So much so that it seems tamer & a little boring. That was the 1st time I was motivated to buy a louder muffler.