Harryman2002

Right now, I am saving to buy a Supercharger for my 02 GT and I know that the Kenne Bells are more fun to drive in the city because of their instant boost. But they are so much more expensive, than a procharger or a vortech. Is the power curve in the Centri ones really that much different than a KB or other similar to that? I drive it as my daily driver, and in the summer I will be taking it to the drag strip fairly often, and I definantly want to feel the extra power around the 2000-3500 RPM range.

The car is a 5spd too.

teej281

Centris dont make full boost til redline...power is more of a curve than an line like the twin screw.

2000AZ5.0GT

umm, that's completely untrue, but thank you. My car makes full boost at 5400RPM......Redline is 7100.....sounds like a bit of a discrepancy?

lizzyfan

Boost is noticable around 2800 rpm and just keeps coming on

teej281

I will rephrase that. Your car will see full boost before redline, but your motor has to be spinning fast enough to make full boost.

Harryman2002

So does that mean that before 2800RPM the car will feel like it did before the S/C was even put on?

southfillyboy2p0

Not sure about centris but with a KB, as long as you don't mash the pedal, the car will feel the same. I go about 30 miles a day and only hit boost if I'm fooling around.

teej281

If youre trying to hit boost much before that, thats not advisable honestly. Boost hitting at 3000rpm is a pretty good thing to have that way you dont have to worry about hitting boost during normal driving. Im more of a fan of the twin screw blowers as i just got a ride in a whipple cobra, but i always liked the twin screw more than the centri.

2000AZ5.0GT

No. When you have a naturally aspirated engine, the manifold pressure will always be in vaccuum. You will never see 0 pressure, IE, there will always be slight vacuum, however, with any type of blower, or turbo, even if you're not "making" boost, you're still at 0 vacuum.

In a NA car, it would take you until about 4000+RPM to see close to 0 vacuum, even when your not in boost, with a centri car, you're still MAKING power.

teej281

You should still see vacuum with a boosted car until you are actually WOT, correct? Thats what i thought was the case anyways. Probably wrong about that too though.