dave2020@mindspring.com wrote:
> Car X came from the factory with a given compression ratio. The
factory >replacement is now a different piston that bumps the CR
significantly.
If that piston indeed supersedes the original part - i.e., the
factory discontinued the original one and now calls for the new
one in the application in question - it is legal in Stock (and
Street Prepared).
> Which takes precident, the factory authorized replacement
statute, or the stock >Compression Ratio Statute?
There is no "stock Compression Ratio Statute." Nor a "Ride Height
Statute," nor a "Weight Statute." You can't protest a compression
test result. If you protest, you must protest the use of illegal
means to raise compression. And a factory-specified replacement
for the original part is not illegal.
> I know the pistons in question bumps the CR. What I haven't
verified myself is the >factory replacement issue. The info did
come from a reliable source though.
The wording "as specified by the manufacturer" covers this
contingency. If the manufacturer has done away with one part and
replaced it with another - and this change can be documented -
the new part is legal.
Jay
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