Yea...peak boost at redline.

 

in my opinion Paxtons are the best centrifugal supercharger. but they still lag down low like Procharger and Vortechs.

 

Well Paxton has been around for a lot longer than either other brand so they should know what they're doing a little bit more than the other brands.

 

they are the only Centrifugals that came factory on a car. they actually were factory for some Thunderbirds in the 50s

 

It seems like a lot of people think Paxton are a little so-so with little boost but once you start getting into higher boost that's when they really shine. But the fact is the same versatile. But peak boost at redline? For real?

 

the faster it spins the more boost it makes just like any other centrifugal. it's a belt drive turbo.

 

Yes centri's always hit peak boost at peak rpm. Wastegate will relieve some psi and flatten out.

 

I often hear that centrifugals lag. Maybe i'm just plain missing it, but i don't see how. When i think of lag i think of a delayed throttle response. So since it's belt driven wouldn't there be no lag? I realize no boost is being made at lower rpm, but response on the throttle should not be affected right?

 

compared to an NA engine they dont. compared to a positive displacement blower everything lags and turbos only lag if they are setup wrong. the reason is design. centrifugals and turbos makes more boost the faster they spin. because a centrifugal is restricted by the engine directly on how fast it spins it will lag compared to a turbo. plus they operate in vacuum at low RPMs (under 2500 from my experiance)

 

I see! Now what about SC's like Whipple and KB? Where do the usually see their peak boost?