[laynlo15]

Originally Posted by Katech_Zach

The max blower speed (contingent on removing all restrictions in front of the rotors) that maggy has dyno tested is 25k rpm with a cable 125mm throttlebody. Sure you can spin it faster, but this is definitely the danger zone where you know what you are getting into. Anytime you have a smaller throttlebody than this or you have a restrictive intake, the blower will be fighting itself at these blower speeds and ultimately will get really hot.

this question is too open ended, you need more engine background data to determine what is safe for your combination.

Boost level are based on a lot of different things (camshaft size, exhaust back pressure, displacement, etc). Again, need more info

That was my point, only a few are willing to run blower speeds above 25,000 but some have and with success, but its always a risk to do it.