superchargers?

[antdog]

what the hell is boost. the how nitrous works post was cool. how about one on superchargers so I can make up my mind and know exactly what i'm saving up for.

[91mgt]

:ian:

superchargers and turbos do the same thing (different drive methods)....the provide postive air pressure in the intake - force more air into the motor. the boost is measured in psi....pressureized air. like really ram air :)

[Fosters]

Originally posted by 91mgt
:ian:

like really ram air :)

except you don't have to go 140 mph to gain half a lb of boost. (this was on a fox with a cervini ram air hood/ram air setup, and a boost gauge)

[txgti]

http://auto.howstuffworks.com/question122.htm

[Pull_T]

Boost is a measure of the air pressure level over and above normal atmospheric pressure that the supercharger pushes into the intake.

[modo]

boost is a measure of restriction and should not be the deciding factor when making a purchase. CFM is the important number

[txgti]

Originally posted by modo
boost is a measure of restriction and should not be the deciding factor when making a purchase. CFM is the important number

I agree with this philosophy a lot.

REason being.. an engine is basically jsut a large air pump. Air comes in, air goes out. In te [ropcess of this.. things happen to spin, and make their way bak to wheels. But the poiit is.. it's an air pump. THe more air it can move.. the better off the engine is, and the more power is created. CFM is EXTREMELY important.

[Pull_T]

Originally posted by modo
boost is a measure of restriction and should not be the deciding factor when making a purchase. CFM is the important number

Well, if you keep the motor/heads constant, then boost pressure will be a measure of what power adder flows the most air.

[txgti]

Originally posted by Pull_T


Well, if you keep the motor/heads constant, then boost pressure will be a measure of what power adder flows the most air.

That depends on where the individual companies are making their PSI readings at. You'd liek to think they're all doing it at the intake manifold.. but that's not always the case I've come to find out. ;)

CFM really tells you exactly how much air si being pushed by a particular compressor. IT's up to the efficiency of the kit at that point to get it into the engine. ;)

You lose a little bit of psi through intercooling. You can lose more if it's inefficient piing (read.. my blower kit)

[modo]

a s and a ys trim will both make 12 lbs of boost at 6000 rpm on my motor with 3.33 / 6.87 pullies

one is flowing ~ 800 cfm, the other ~ 1200 cfm

id rather have the ys

[txgti]

Check out the CFM ratings on these. ;)

http://www.procharger.com/models.shtml

[Matts88GT]

Im not a forced air inducted guru or anything, but what I have learned is, the point of a supercharger/turbocharger, is to compress the intake air, so that it makes it a ton more dense, therfore allowing you to put more into your cylinder.

Someone please correct me if im wrong, and I prolly am...:fart:

[txgti]

Put simply, yes. ;)

Forced Induction.. i.e forcing air into your induction for the engine.. or intake. ;)