Thurman

Juice.... ftw....

explict

Nitrous sounds right
maybe even turbocharger. They usually dont start making boost until the throttle is up there

androdz

Wrong again, the new turbo's are already at max boost at 2,800 revs. So you have a flat powerband from 2,800 to 6,500 unlike a supercharger that keeps increasing boost. For example a centrifugal s/c on a 14 psi belt will make the 14 psi at the redline while the turbo will be @ 14 psi 2,800 with no parasadistic loose. Thats why they are > than s/c's

Andrew

MantaDreams

uh... parasitic?

that's about the best typo I have seen in a long time!
para-sadistic

sorry I usually don't like messin with people trying to make a useful reply, but I could not let that one go by.

ratnacage

Superchargers are direct driven off the crank pulley and are thus "always on." You can't flip a switch to "engage" or "disengage" The reason boost doesn't show up till the higher rpm's on a centrifugal is because the impeller speed isn't high enough to compress the air. On a roots type (like the Roush, Whipple, etc) boost come up right away because they are positive displacement type compressors. The only exception is like what was mentioned in a previous post about the bypass valve staying open until there's enough pressure to close it and cause "boost." But even in that case, the supercharger is still spinning it's just that the excess air is being recirculated back to the intake side of the SC so no boost is created.

brendend

what if you got a clutch on the pully like the a/c compressor? the pully is always moving when the engine is on but the compressor isnt always going? could you use the same idea for a s/c?

Ford_Dude

not on a Screw or Roots S/C because if it stops turning then air stops flowing
on centri it would work

Ford_Dude

Screw type S/C

Roots Type S/C

Centrifugal Type S/C

http://auto.howstuffworks.com/supercharger.htm

androdz

//blah gay *** spell check