I totally agree. With and without the new intake intake manifold, the SC'd VQ makes an average of 236whp from 3000 to 6000rpms. There's basically no change in power. From 6000 to 7000rpms, the new intake manifold makes an average of 338whp and without the manifold it make 315whp. From 3000 to 7000rpms, the new manifold makes an average of 287whp and without it's average is 276whp. It should be noted that only from 6300rpms to 7000rpms is the new intake manifold making any significant additional power. With a manual in gears 1 through 3, you spend very little time time accelerating from 6300 to 7000rpms therefore the car will not realize much of measurable gain. Not until 4th and 5th gear will the car be marginally quicker, but by then you're well over 110mph which is a speed most of us don't use on any basis. Even with a blower, I have a hard time believing this $800 intake manifold is worth the money or the effort. It sure looks sweet though.

NA motors are very dependant on a well tuned intake runner design. It tickles me when people say the stock intake manifold is restrictive in the upper rpms when the Nissan tech papers say that this intake manifold achieves 105% volumetric efficiency in the midrange and nearly 100% efficency above 6000rpms. Those are seriously impressive numbers. Forced induced motors aren't nearly as dependant on tuned intake manifolds because these setups develop their own atmosphere and can easily overcome the volumetric inefficencies. I'm fairly certain that adding this new intake manifold will result in a 10-15% decrease in 2000-5000rpm power and a slight gain in higher rpm power. In the end, it will be a slower NA car.

People need to understand that average power is what counts, not some blip in power for 500-700rpms. A car that gains 10% in power from 3000-7000rpms is going to be a bit faster than the one that gained 20% in power from 6000-7000rpms. Peak numbers are for attracting buyers, average power is what wins races.

 

yeah, i doubt i will buy one, but it sure looks pretty.