[Joshinator99]

Originally Posted by ZLRob

There is a huge misconception about boost and I wish there was more education put out regarding it. Folks chasing higher boost numbers will be ultimately disappointed when they are not making the power that is supposed to come with it because PD blowers have a narrower window of efficiency than a turbo or a centrifugal blower does. If you are spinning these blowers too hard, they heat soak due to not being within their efficiency window and you wind up actually losing power instead of making more of it. The X factor here comes into play if you are using meth injection. Then everything I just said goes out the window, but that presents a whole different set of potential challenges, complications, and even dangers.

That, plus the faster you spin the blowers the more you tax the drive bearings which realistically only have a maximum rating of 20,000 RPM, so meth injected or not, you'd just have to sit there and replace them very quickly because of that. A lot of us including myself are over that but I also want to stay relatively close to the max still. If I remember right, I'm spinning mine in the high 22K or the low 23K RPM. For others, well, you know, godspeed on that.. Lol.

Very well said.

Boost is not your friend. Build your motor to move air efficiently and you’ll make more power with much lower boost numbers.