No the centri's don't use the "intake side", belt-driven doesn't = intake.Turbo's just use the exhuast side, and the centri's just use the intake side.
You can control the boost with a turbo, not on a supercharger. I guess you could blow off over a certain pressure, but there's no boost controller per sé, like a turbo. And you have to change pulleys on a screw, roots, or centri for more boost...they're all driven the same way.You can also control boost with a centri setup, whereas you'd have to change pulleys on a twin screw or roots type.
Like someone else said in this thread, after a downshift and with the proper gearing, there is no "lag" and you won't be out of the centri powerband.A centri might be a faster setup in some cases compared to a roots/twin screw.. but I'll still take the instant power and torque. The feel of instant power is worth it to me.
2.1L is the lower heat upgrade to the 1.7L... my bad.The 2.2L fits a GT??
well, i see a point. the old cobrs 2.2 was capable of higher boost levels while the new 2.2 gt one stil maxes out at 14psi. which probably is over spinning it anyway.
But then spend more money and build up your bottom end and then up your pulley to 14psi...
And then... spray...
you will not be dissappointed in a centri. the t trim will get you more HP than a small KB will think about putting down.