In a message dated 11/5/2006 11:41:47 AM Hawaiian Standard Time,
peak power at about 6,500
OK, "peak power" is always a questionable phrase to me. Long stroke 6
cylinder engines are generally designed for lower RPM max torque. When you
higher RPM range, especially above the factory redline, then I suspect that
you are talking about horse power. You'll note the factory manual indicates
horse power and torque values at a low 2700 RPM. I know that the stock BJ8
tach has a red line area between 5500 and 7000 but I trust that about as much
the accuracy of the RPM that the tach is indicating.
When visiting the historic races in Portland Oregon several years ago I
questioned one of the more successful Healey racers competing about his engine
development. He said that it cost "X" dollars to build an engine to rev
reliably at 5000 rpm. For every 500 additional RPM it costs twice as much.
numbers are correct it would cost 8 times more than the stock build to have
it reliable at 6500. Obviously he was talking about race engines but the
stock components are not up to the task except for an occasional blast between
stop lights. High performance engine parts are expensive and you will need
to get to 6500.