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3. Last years 4th gear
run overlay'd with this years 4th gear run from box 1 above.
Note weaker low end and midrange, but stronger high end. This
came primarily from different cam-to-engine timing. Instead of
several degrees of cam advance like I was running last year,
I ran some cam retardation. You can clearly see from the overlay'd
curves where the power 'rocks' around a certain rpm.
Also, these are 'only' Schrick
260 cams.
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4.
Last years all gear run overlay'd
with this years all gear run from box 2 above. Note that
where it matteres, shift to shift, the engine pretty much was
in the power band at the tall end of the rpm range. This indicates
the redarded cam timing makes the car much faster in a sprint,
but slower in mid-range driving. Interesting trade-offs, eh?
Oh, the dyno operator missed the 1-2 shift for a second or so
during this years all gear run. |
