[ivymike1031]

I think you guys had better be more clear about what you mean by "lag" before the discussion proceeds any farther.

454, your version of "lag" would seem to be something along the lines of "the time it takes for the engine to reach max rpm from idle." (engine angular acceleration is the key parameter)

I had thought that lag was more along the lines of "the time it takes to reach full intake manifold boost after the throttle is opened." (manifold pressure is the key parameter)

Yogs, your version seems to be about the same as mine.


454, if I'm right about what your version of "lag" is, then I've got something in mind that probably has less lag than "Accessory/flywheel-less NA engines": a low-inertia engine with an integrated electric motor assist (like the honda insight), if the controller is properly configured.