I think you got it wrong on this one mate...

The gasses won't be exiting at the same rate, because of a eventually restriction in flow. If the exhaust port is extreme small this will cause a powerdrop ofcourse, but also the pressure in the cylinder on TDC will be higher then with a right ported head.

I think your forgetting the pressure on TDC.. The pressure on the time isn't always atmosferic. If it flows good you will have a under pressure which causes a higher velocity of gasses entering --> Helping your turbo to spool.

Also a under pressure wil be caused by a high exiting velocity of the exhaustgasses. Also high velocity will make sure the gasses have a high energy when hitting the turbo --> Less lag?



Bit different from the story so far, so i'm really curious to your reactions. I'm i right or am i missing somthing