Here's what we're removing:
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The next step is to go get the parts.
2' of flexible furnace ducting ( to make
the mock set up) - Hardware store
5" of rubber hose 3" inside diameter -
Hydraulic supply store
4 - hose clamps ( I used 4" ones) -
Hydraulic/hardware store
1-90 degree 1/2" brass fitting , 2 washers
and 1 O-ring to fit this fitting
(one end has to push a hose on the
other has to have threads) - Hydraulic/hardware store
1-90 degree 7/16" brass fitting , 2 washers
and 1 O-ring to fit fitting
(one end has to push a hose on the
other has to have threads) - Hydraulic/hardware store
1 nut to fit the 1/2 fitting
1 nut to fit the 7/16 fitting -
Hydraulic/hardware store
After getting these parts take the flexible
ducting and make a mock set-up.
Bend it to fit between the intake air
inlet and the airbox air outlet.
Watch out for the Master cylinder as it
is a tight fit.
If you make the bends correctly you can
miss it by about 1/2 an inch.
You also have to get the length measurement
right. Mine was around 15 3/4 inches.
Once you are satisfied with your mock
pipe, take it to a muffler shop and get them to bend you a piece of 3"
pipe exactly like the one you bent using the flexible ducting.
Below are some pictures of the mockup:
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When I got home from the muffler shop I
cut the 3" rubber hose in half , 2 1/2 " long. I put on of these on the
intake and the other on the air box outlet.
I then put the pipe i had made in place
between these two. This was to check for overall length. Mine
I had to cut some off as it was too long. I did this with a hack
saw.
Once it was the right length I did a test
fit. I put the pipe into the rubber ends. I then marked where
the valve cover hose I took off the original pipe was going to fit.
I put mine in the same place, about. I went to the other end by the
air box and marked where the 7/16 hose that came off the Silencer that
goes to the engine was going to be put.
I found that if I ran that hose over top
of the distributor then to my pipe it would be a perfect fit.
Once I was happy with where the 2 hoses
were going to be placed I went and drilled them.
For the 1/2 inch brass fitting I used a
9/16 drill bit. The 1/2 " drill bit was too small. I drilled
this hole. I made a test fit. I had to file the hole a bit
to get a perfect fit.
Then I took a round file and cleaned out
the inside and outside of the hole to make it all flat and even.
Also took of any burrs or rough edges.
For the other end of the pipe where the
7/16 fitting will go, I used the 1/2" drill bit. I drilled
this hole. I made a test fit. I had to file the hole a bit
to get a perfect fit.
Then I took a round file and cleaned out
the inside and outside of the hole to make it all flat and even.
Also took off any burrs or rough edges.
Once the holes are all drilled I took the
pipe and a metal file and cleaned up any sharp edges in the ends.
I did this because I cut my hand on one
end. I filed mine so they were fairly smooth inside and outside.
Then I took my air hose and blew the pipe
out. I gave it a quick wipe down. Then I sprayed throttle body
cleaner inside and outside to get rid of any oils or foreign material that
was left. I took a new clean rag and wiped the inside and outside
one last time before I painted it.
I taped the holes on the inside so
no paint would get in. I took a few rags and stuffed one in each
end so paint could not get in that way neither. I took some Tremclad
Flat Black and painted it. After a few coats and fully dried I went
on to assemble everything on to the tube.
It is now time to put the fitting on.
I wanted an airtight system so this is what I did. I put the a washer
on the threaded end of the 1/2 brass fitting. Then I put the O-ring
on after the washer. I put the fitting in it's hole. If you
done this right the O-ring should be between the pipe and the washer.
I then put another washer on the inside of the pipe on the fitting.
Then I put a nut on the threads and tightened it all up. I put it
on the engine a couple times to get the fitting in the right place for
the Valve cover hose to fit nice.
I then took the 7/16 brass fitting and
did the same. I then took throttle body cleaner and cleaned out the
fitting and the pipe one last time before I installed it. Make sure
you get none on the paint as it will take the paint off.
Cut rubber hose with clamps near by:
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Various pictures of the fittings being
attached to the 3" pipe:
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2.5" hose attached to air box:
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Pipe installed on engine without emission
hoses:
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Here's the finished product, looks great:
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If you choose to do this mod good luck,
and if you have any questions 
(Blu) on the Yotatech Forum.
NOTE: You should use some type of liquid
lock washer to ensure that the fitting inside the tube doesn't work itself
lose and get sucked down into your intake.
That could be a very expensive fix
if that happened.
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