all right now this is what we're talking about
this is the street demon carburetor and as you can see
it's a totally new design this carburetor has been designed from the ground
up all new stuff
and because it's a street carburetor you gonna find stuff like this universal
throttle linkage here
its gonna have an electric choke and it's got a dual pattern here on the base
plate
that's going to allow you to bolt it up either to a standard Holley flanged intake
or even a spread bore intake like
you know though the factory installed on your car perhaps or a lot aftermarket
intakes have that pattern is well
now as cool as all that other stuff is here's here's what really
makes a good streak carburetor now you gonna notice the primaries here
well the only measure an inch and 3/8ths know what that's going to do for is
give you great throttle response
and good fuel economy but look what happens when we open this thing all the way
up
there we go now this secondary here's called their
goggle valves a very unique design as you can see it's actually missing
whats usually here between the two throttle plates
and it's one big one here and when you dump that thing open it's
gonna introduce all kinds
of air and fuel in there going to give you a real kick in the pants all right now that's
just a little bit of a look at what's on the outside of these things but
there's also a very unique version I want to show you here
now this is also available I want you take a good close look at it the main
difference
is the main body here is made from a aerospace composite now thats actually a
high-tech polymer what that's going to do for years it's gonna
help to keep the the fuel inside the bowl there
up to 20 degrees cooler that's especially important because you know
today's fuels have 10 to 15 percent ethanol in them
of course by keeping the fuel cooler
that's going to help you get a lot denser fuel charge into the carburetor
make a little bit more power now I've taken one of these apart over here
and a we;ve show you what's on the outside let's take a look at what's on
the inside
now I know that I just talked a minute ago about the
main body here this is the aluminum version of that polymer body
now this is a die-cast piece here and the reason for that is it really allows you
to control the casting process
and ultimately allows you to do a whole lot less machining on the peace here
now one thing I want you really take a good look at is there's to these huge
fuel reservoirs here these are you what might otherwise be
referred to as the
the fuel bowls now with that kinda capacity this thing is gonna feed
a pretty healthy street engine I read a report where this thing dynoed on a 425
horse engine feed it
adequately so it shouldn't have any difficulty at all with my small block
over there it's a 355 cubic inch about a 400 horse engine
now here's the baseplate really cool stuff going on here's another look at
that
goggle valve their man that thing is really cool as you can tell
it's got ported vacuum source here
couple a direct vacuum sources here it's got plenty of vacuum
force just about anything that you gonna run on the street plus here's a pretty
unique deal
Demon really did us a Service here. they put a little neural knob
right here on the curb idle adjustment and that allows you to make those
adjustments without the use a screwdriver
now you are going to have to use a screwdriver though for these idle mixture screws
up here but
hey no big deal right up front easy to get to
easy to make those adjustments now this is the first one that i ever took apart so I had
just a little bit trepidation about it but you know what it took to take it
apart
a Phillips screwdriver in a small needle nose pliers now
there are eight screws that's what you use a Phillips head screwdriver on
and this another couple of little
eclipse that are on the linkage there and once you get them things off their
the whole thing is just really easy to disassemble now let's take a look at the
top part in this carburetor here
see what really helps make it work all right well lets flip this top over
so we can get a better look at it what your gonna notice here's where it has a
single 3/8ths inch
fuel inlet here and it's got a integral fuel transfer tube
now what that's going to do there's a needle and seat on both sides here where
the fuel comes in and of course
their controlled by a pair of floats here now
we've got our secondary and our primary Jets here and up front here we've got
the accelerator pump housing it transfers fuel through this little tube
right here to this quarter's that are visible from the
from the top side now here's what really makes this thing
work though this is there their
triple stack boosters and once we get a good look inside of there you'll see
that
I'm what this is going to do is really atomize the fuel really well
and that of course is going to give you a whole lot better
throttle response drivability and even make sure that
because that complete fuel atomization you can even get to improvements
in fuel economy well alright
that pretty much takes care of the well at least a simple overview how that
carburetor works how it comes apart
all the major components of it so it's about time for me to get back to work
we're about out a time for today but
I've got one more decision I need do i go with the pretty carburetor
or do I go with the high-tech polymer carburetor
tough decision but I think I'm gonna go with this just for the little bit a
performance edge
i'm gonna bolt it up we'll see you back here couple weeks i'm gonna give you a full driving report on it