In a message dated 98-04-15 12:25:33 EDT, you write:
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According to Butch Gilbert who has raced MGBs for donkey's
years, the 3-synchro MGB gearbox is good for about 10 extra
peak HP at the rear wheels compared to 4-synchro boxes.
Rich Gordon at Trafalger spares speculated that the reverse
should be true due to the 4-synchro box's bearing and shaft
size. Could it be the size and weight of the flywheel
that's really making the difference?
I'm inclined to trust Butch, but am seeking more opinions
before I pull the engine and start swapping gearboxes.
Thanks,
Andy
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Andy,
I have never heard the above before but I am inclined to agree with Trevor.
Ten HP at the rear wheels is just too much. I can tell you a few things from
my own experience with the 3 syncro vs. the 4 syncro. The 4 syncro is about
40 lbs heaver than the 3 or so I'm told. My experience with the 4 is that it
is rather mushy and hard to shift in a hurry. The 3 syncro is very slick to
shift and while not as bullet-proff as the 4 is easier to race. IAC both are
easy to rebuild and there are parts.
Rod Schweiger
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