340 or 408?

Trust me I definitely understand the general sentiment. But if you're looking at what you would actually feel by the butt dyno, The larger displacement area under the curve difference is huge.

In fact I would go so far as to say that even properly geared stalled etc the bigger engine is going to win by virtue of that increased area under the curve. It's making more power across a broader RPM range you can work with that.


No, it won’t. Think it through. Area under the curve is meaningless in ANY form of racing.

What matters is area under the curve between minimum and maximum rpm.

What happens at 2 or even 3k means nothing in a race.

On my drag stuff any thing under 5500 didn’t mean a thing. It never saw rpm below that.

If you are taking about street driving then you can use ANY testing at WOT because no one that has a clue is at WOT at that rpm.

And if they are it’s only in one gear.