If you are going to go turbo you would be well advised
to at the very least to install a set of forged pistons.
Polishing and shot peening the rods will also help to
hold the motor together.
I built and own a turbo V-Max and I guaranty
that you will not be happy with 5 psi boost.
A set of pistons will cost about $600.00 thats cheap
insurance against detonation and a blown motor.
I run 8.5 to 1 Arias pistons and boost to 20 psi with no
piston problems, the difference in a stock piston and a
turbo piston is not only to do with compression ratios.
The thickness of the piston in the combustion area and ring
lands are very important WHEN detonation occurs
(not if).
GARY V.
VMOA 614
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