Black Jack Headers ,
KF blower ,
5153 NOS ,
Holley TBI ,
MAC Mufflers, controlled by commander 950 with the unreleased pro software,
tech edge v 2.0 wideband
The rest is small stuff
The Fageol supercharger kit made for the Iron head 2.8 v6 has a low profile
manifold that allows it to clear stock hoods. Because of this the manifold
has no provision for any pop off plate whatsoever. Being the the 60 degree v6
is so narrow , this manifold is already extended in its design to allow for
the long and narrow extruded max 25 Fageol supercharger and therefore the
front features the thermostat mount as well as three thermocouple bosses for
various sensors.
The manifold also features a 50 state legal egr passage system which runs under
the plenum area. Because of these features no extra space is available anywhere
for a pop off. Under the normal usage of the supercharger kit a pop off is not
nessesary. Reasons for this include the serpentine belt slipping if a backfire
were to occour and moderate boost levels.
In my circumstance the supercharger will be run at higher boost levels and will
also be aided with the wet 5153 tbi nos nitrous system.
I felt it nessesary to provide a escape path for the air to travel in the event
that a backfire should occour. The smallest BDS backfire plate kit part number
BDS-8026AK was aquired from Good Vibrations Motorsports in Whittier Califorina
(1-562-945-7669) www.dragparts.com .
The fortal and 6061 aluminum used for the project was aquired from WWW.EBAY.COM
and from sellers sciparts and speedymetals. The fortal bar just happened to
be the right sized scrap which I had actually purchased for the Novas front
and rear resevior Wet intercooler project , but oddly it ended up being just
right to pursue the project.
The other aluminum I used was 6061 1/4" thick.
I first had the grueling task of cutting through the solid fortal slab with non
other than a drill press to initiate the saw entry , then finished of with a
skillsaw as well as a sawzall. Ironically despite many hours of cutting neither
saws ruined a single blade. I am definately having the Nova intercooler water
jet cut professionally but for this project the end results wre good and kept
cost to a minimum.
The top half of the induction uses a holley tbi 670 cfm unit with a 5153 nos
plate sitting on top of a 670 to 4 barrell holley adapter. The holley adapter
sits on a fabricated 1/4" thick piece of 6061 aluminum rounding out the upper
induction.
Below is where things got tricky. The stock fageol series superchargers mount
with studs that are screwed into the case just adjecent to the case outlet.
Stock studs protrude through the lower manifold and are secured with special
nuts from the underside. Some of the studs because of their proximity to the
lower manifold plenum protrude into the actual area where boost is present
and into the egr passage below. This engineering feat in stock form uses
copper washers to "seal" boost from entering the stud holes and entering
the oil valley or egr passage. Originally when I ran the kit last year I had
run it without these washers because I had bought the kit used and they were
not included.
Normally I would just attept to recreate the mounting as it was originally
designed but due to the pop off slab and the fact that I mini welded egr block
off plates on the cylinder heads I had to come up with a slightly different
approach.
Since I also wanted to be able to unbolt the supercharger from the top side
posed another challange.
The solution ended up being a series of studs that attach the fortal pop off
slab onto the lower manifold , however these studs only penetrate the upper
mounting holes. Frome below the old exsisting stud hole provisions were
tapped and bolts with teflon tape were screwed into place to keep the boost
where it should be , in the plenum , not the oil valley.
With the aluminum slab mounted I then had to take two identical pieces of 6061
1/4" aluminum and mount one to the slab and another to the supercharger bottom.
This required drilling the mounting holes as well as counter sinking them 3/32"
and then drilling blanks out of the opposite plate so the allen heads would
not interfere with the mating of the two plates. I used the 8 holes on the
base of the blower to mount one section and 6 bolts to mount the other plate
to the slab using helicoils. Then each piece had to be cut out to allow air to
folw through them, meanwhile all this had to be mocked up in the engine bay to
make sure it was all inline with the belt system.
Today I have to clean all the parts and handmake gaskets, then all I have to
do Is wait for the headers to come back from jet hot , assemble, wire then Its
should come alive!
Blower on engine 2
Whats up Im down in florida at MMI. This is october 1 2004, as I write this. Truck is still in ohio engine was
fully broken in november and december driving 270 etc. A few folks around columbus saw it out and about then. Now its still in ohio
chilling and possibly painted up by my brother. I had the truck set for paint before I left.
Anyways I never did show persons the engine shot as was running on the new commander 950 and and wide band (Full closed loop)
So have at em