[jluetjen]

Ok Jack. I guess I'll need to wait for someone to get 150HP from a 2.2T by retarding the cams -- it's a relatively straight forward change to make. Now if you're saying that by putting a more radical cam into a 2.2T you could get upwards to 150HP, I would agree. What you're describing in many respects is a 2.2E which made 150 HP at 6200 RPM and 141 lb-ft at 4500 RPM. Sure the E had a higher CR, but near as I can tell, CR doesn't make a huge impact on 911 engines, although it will help to fill in the top and bottom extremes of the rev range when the cylinder pressures are low.

I'd also be interested in seeing an engine where someone's making 180+ HP through 30 mm intake ports, or 200 HP plus through 32 mm intake ports.

If it is so easy to do, why isn't the first and most common mod made to a T to just retard the cam and get 150 HP? The cost is almost $0.00. You would think that every T in the world would have this adjustment made to undo the detuning that Porsche made at the factory. It defies logic that everyone is missing such an easy tuning opportunity.

So in some respects we're agreeing. Imagine that! But we'll still agree to disagree on the ultimate limits that in many cases the head ports impose.

I'll just let it go now.