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The
GTS4 AWD RB20DET Injector Upgrade.
Page
2 of 2 on the Injector Upgrade to 550cc's
Click photo's to enlarge. |
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The
TurboClub RB20 Intake.
Nissan Skyline GTS4 AWD |
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Having done all the work on the intake, I
was pretty used to taking it on and off by now so
decided to get stuck into it and remove the
complete manifold system to get at ALL the hoses
underneath.
I had decided that just to replace the blown one
with everything in place may have been possible,
but did not account for more blown hoses in the
future.
AS the GTS4 is over 10 years old I figured it
would be smarter in the long run to do the lot
while also doing the Injector swap. |
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TurboClub Coolant
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Air Bleed Chamber to suit TurboClub Intake
Manifold.
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The standard manifold has a small chamber on
the front at the highest point of the motor to
allow air to be bled from the cooling system
by loosening off a bolt. As the TurboClub
Intake has the throttle body on the front with
the original bleed removed, a custom unit was
fitted to achieve the same result but with the
added advantage of a sight glass.
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Once I had removed the top half of the manifold it
was fairly easy to remove the fuel rail and
injectors. I did not guess that it was going to be
more trouble than I thought.
The bolts on the intake to head were not to hard
to get to, and the main trick was to unbolt a
bracket on the firewall end underneath that
supported a few hoses on the block. |
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The problem that no-one mentioned was that the
electrical socket is keyed for the RX7 injectors
differently to the Nissan RB20 injectors.
This means I also have to get the correct plugs
and rewire into the loom. Probably no big deal but
something I had not taken into account when
everyone said the RX7 injectors were a straight
swap. |
Now fixed by cutting off the plastic bits!! |
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The original Fuel Rail seems to have enough volume
and I cant think that it would need to be replaced
with are more expensive name item. |
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Of course after upgrading to 550cc injectors the
Air:Fuel ratio was not going to be too correct
unless I add more air volume for the same amount
of fuel at any RPM point. |
So what I did was enhance
the Air Flow Meter (AFM) orifice to double the
standard size
here
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NISSAN
Skyline HR32 GTS4 AWD 
