Hi Dick,
Thanks for the info. It makes sense now. If all the curves on page 9
include the Velocity Stacks, Valve grind, and Exhaust Headers -- that
is, all the curves on page 9 include everything from curve D on page 10,
except variations of the cam and compression Ratio, then it all makes
sense. Curve D on page 10 and curve A on page 9 are essentially, or are
the same engine, and the curves are the same -- close enough.
As he said, he neglected to note the presence of exhaust headers,
velocity stacks, and valve grind on the spec sheet for page 9. So, I'm
not nuts. :-)
I wonder how many times he's answered that question... :-)
BTW, how many questions will he answer?
:-)
Thanks,
Don
Sally or Dick Taylor wrote:
>
> Don, and interested parties---Below is the explanation on why "adding
> extractors" seemed to lower the final power figures, as shown on PP. 9 &
> 10 in the Comp Prep Manual. Courtesy of the "Author"
>
> Dick
>
> The figure "C" on page 10 is with the stock exhaust manifold while "D"
> on the same page is with the extractor system (Headers). Read the notes
> in the little box of specs on that page. The ":D" is not referring to
> another camshaft but to another TEST.You will note the date of the page
> 10 is several days before the page 9 tests. This means I started with
> the stock exhaust to show the difference then neglected to note it on
> the spec sheet on page 9 for the later tests.
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