what with the thread on electric turbos (go ahead let the dumbasses waste their money) and some stuff i'm reading about (custom forced induction for AMC v8s...mmmmm), i've been thinking a lot on centrifugal and positive displacement induction systems.

so how exactly does the fuel from a carb stay vaporized in a wet supercharger?

and could a dry system (i.e., designed for fuel injection) work by forcing air through a carb, rather than drawing it through?

thanks

paxton offers a blow thru setup.
a draw thru centrifigul would be a hard one to do.. if ya wana stay carbed, then look into a blow thru..

basicly theres a box that the carb sits inside of, this way the floats, throtle shaft etc is presurised, there is also usualy a boost line that go's to your mecanical fuel pump's vent line to increase fuel presure under bossted conditions.

there was a HUGE $$$ draw through done by paxton with a Novi on a mustang afew years back.
I would just hate to sneeze it.

Originally posted by WillyPete
what with the thread on electric turbos (go ahead let the dumbasses waste their money) and some stuff i'm reading about (custom forced induction for AMC v8s...mmmmm), i've been thinking a lot on centrifugal and positive displacement induction systems.

so how exactly does the fuel from a carb stay vaporized in a wet supercharger?

and could a dry system (i.e., designed for fuel injection) work by forcing air through a carb, rather than drawing it through?

thanks

Basically, the wet flow positive displacement superchargers (Roots blower) keeps the fuel atomized by the sheer turbulance of the air flow inside the intake tract.
I've never seen a working wet flow centrifugal blower. The fuel gets slung to the outside of the blower case. (Even on the Paxton. How many other projects like it are there??)

For my money, a Roots blower is the best for a 'wheelin application. Roots blowers increase low end torque MUCH better then centrifugal blowers. My motor never sees more then 3900 rpm, so a cetrifugal is a waste of time.
The only problem with a roots blower is the height of the system, might cause some visibility problems. On a J-truck, I think you would be ok, the 401 is a pretty small (dimensions) motor, a couple inches of body lift would work wonders for hood visibilty also.

Matt