SuperChargers for 370Z

Originally Posted by OKC370Z

Who said anything about swapping blowers? The intent of my statement above is for STREET applications. My opinion is that you're better off with a centrifugal rather than a roots type blower because of power delivery, based on what type of motor you have in the first place.

Small motors that make power at higher rpm levels will benefit more from a roots type blower due to lack of torque and power in the lower rpm range. larger motors with good torque characteristics benefit from using centrifiguls since they already have the torque and power down low and need help breathing on the top end.

Both supercharges will work and peform well but after owning both and in different applications I preffer the centrifugal with a motor like the 3.7 in the Z. And the reason why is becaue of traction, I don't have any desire to set my Z up like a drag car just to get better traction when I can make as much usable horsepower with a centrifugal as a roots and have more tractible power in the range I would use it.

Originally Posted by Boosted Josh

I don't know about you but 3.7 liters is small in my book.

Originally Posted by OKC370Z

It's all relative as far as size and an engines characteristics. Myself, with the good torquedelivery and gearing of the 3.7 in the Z, I beleive the the centrifugal is the better choice for tractibility and control. I have had a few FI rods in my day and it is important to match the FI systems up with the the motor based on the characteristics of the motor i.e. cams, power delivry, before hp and tq levels and where in the power band their the strongest/weakest.

By no meas is the 3.7 a big torquey motor, but it does offer good torque down low and the gearing puts it in the meat of that torque pretty quick. So, to maintain a level of traction and control the centrifugal is the way to go in my book.