Quote:
Originally Posted by XfireZ51
Graham,
Yes since the dyno graphs are at WOT, both injectors are obviously operational. By your response I take it is the fingerprint of the induction system harmonics.
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Sorry, obviously didn't read the question enough, my bad. There are many things that influence the characteristics of the engine. Fundamentaly we design the engine from the combustion chamber out. The variables include, zip tube length, plenum volume, runner length, runner gemetry, port length, port geometry,port volume, combustion chamber, exhaust geometry, valve timing, exhaust runner length, cam profile, timing etc. If we look at the modifications the aftermarket has done to the LT5 the fundamental characteristics of the engine have not really changed that much, so the shape torque curve, or it's relationship to BMEP, versus engine rpm will not change that much either. Now , obviously the peaks occur at different rpm, but the rest is what it is, without major geometry and architecture changes.
Graham