S to a YS trim?

[tstang]

What kind of benefit/power gain is expected from this swap on a car that lets say made 500rwhp. Im being told that 8lbs on a YS is comparable to a S making like 16 or so. A couple of guys have run both these units and are raving about the results.

Just curious what peoples opinions are on this topic.
Thanks

[BLOWNBY]

I doubt 8 lbs with the YS will make the same as a S at 16. The big key is it will make way more up top. Meaning if a S made 550 rwhp at 16 psi it is probably maxed out. While the YS will probably make 675 rwhp at 19 psi with room to grow. Just numbers to give you an idea.

My s was maxed out and made 13 psi with 530 at the rear. Went to a ysi and made over 670 at the tire with 19 psi. A lot left in it thought. But to about 4500 they both made about the same power.