i was told years back about squishing the block on a motor and just wondering is this a true statement and is there any big gain in this
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squishing block
i was told years back about squishing the block on a motor and just wondering is this a true statement and is there any big gain in this
A pretty common practice on the mercury blind bore motors, big gain is another story, rather part of a combination of mods, port timing, open exhaust etc. If done poorly you've ruined your block as was demonstrated a few years ago by a very opinionated contributor to this site.
Even at that, I don't know if it has any use outside of "blue printing" a stock motor to allowable specifications in a "stock" racing class where no modifications are allowed.
There would definitely not be a BIG gain
Since 1925, about 150 different racing outboards have been made.
The rules are "RUN WHATCHA BRUNG"
Helping folks out around the globe.
When you say squish the block do you mean, squish the cylinder head to increase compression, or squish the crankcase to increase crankcase compression?
The head
Since 1925, about 150 different racing outboards have been made.
Port timing
How does it increase power? Top end or hole shot? How is it acomplished?
I would recommend a different thread to ask and answer the port timing question.
Since 1925, about 150 different racing outboards have been made.
He is refering to the BLOCK, not the head. That is a totaly differant thing.
Helping folks out around the globe.
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