Originally Posted by infernometallicSS
If there is anyone in the Phoenix area that has either type of blower that wants to give me a ride along, please let me know.
That's exactly what you need to do. Ride or, better yet, get behind the wheel of the types you're considering. To me, it's an easy choice. I want all of the boost I'm paying for whenever I hit the go pedal. At 7 to 8psi, there's little or no difference in peak power centri vs P/D. If someone tells you there's a big difference, they're either ignorant or trying to sell you something. Centri's rule when the boost gets higher. P/D's rule at mild boost levels....plain and simple.
Before anyone's panties get bunched, I'm not saying centri's aren't capable of making great power. That's not what is being discussed here. 7 to 8 psi on a street machine.....What a YSI does at 15psi is very impressive. If I wanted those boost/power levels, that would be my choice. I don't and I'm guessing the OP doesn't either.