Quote:
Originally Posted by ps2fixer
if the intake was designed like this, it would have a very hard time getting much air even with the carb wide open.
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That's the thing. If we're talking about racing or pulse and gliding or accelerating in general then yes, the intake design will affect pumping losses.
But if we're talking about cruising at a steady speed like 70mph in the video, then the intake doesn't matter all that much.
As you said, the engine will have a hard time getting much air even with the carb wide open. If you can cruise at your desired speed even with the carb wide open you wouldn't benefit, in that state, from an engine that has a huge, low restriction intake because the throttle would not be wide open. It would be shut to the point you end up with the exact same total intake restriction and therefore pumping loss.