Project
Inject
Dave's Modifications Site
gives a guide to the DIY conversion of Blue/Black Holden motors
to Black motor EFI
Page 1
Ever wondered how you could get a performance boost from your 202? Had troubles ironing flat spots out of
your Varajet? After more economy? Like to increase the level of technology under your bonnet?
These are common issues raised by people all over Australia and New Zealand.
I too had these issues and more!
Determined to do something about it,
I set forth to embark on Project Inject. That is, the conversion of the common Varajet-II carburettor
of the blue 3.3L Holden Commodore to the VK Commodore analog
tuned-port fuel injection.
To perform this fuel injection conversion,
you will require a fair few parts. Fortunately, these parts
are relatively easy and inexpensive to obtain. Note: If you take the head off a donor vk efi with the rest of the efi bits that connect to it, you have 80% of the parts needed straight away! The complete
(if my memory serves me correctly!) itemised list of parts for
a COMPLETE conversion can be seen below. At the end of the
article is a list of substitutions and alternative parts.
-
1 Bright red intake manifold with EGR valve
-
1 VK EFI Throttle body
-
1 Throttle position switch
-
1 VK EFI Air Conditioning Idle Solenoid (if
donor car is fitted with Air Conditioning)
-
2 Induction pipes between the throttle body
and the airflow meter
-
1 VK EFI Airflow Meter
-
1 VK EFI Air box and filter
-
1 Auxiliary Air Valve
-
1 Hose from the intake pipe to the Auxiliary
Air Valve
-
1 Throttle bracket
-
1 Fuel rail
-
6 Bosch injectors, part number 0 280 150 203
-
1 Fuel pressure regulator
-
1 Fuel return line
-
1 VK EFI or VL Commodore fuel tank
-
1 External Fuel pump
-
2 Fuel dampers (One at the pump, and one
mounted on the throttle bracket)
-
1 Fuel filter and mounting bracket
-
1 VK EFI Coolant Temperature Sensor
-
1 VK or VL Commodore overflow and washer
bottle assembly
-
1 VK EFI Cylinder head
-
1 VK EFI Computer (ECM - a Bosch LE-Jetronic unit)
-
1 VK EFI injection harness
-
1 VK EFI rocker cover [has extra mounts]
-
1 VK EFI extractors
-
1 VK Tachometric Relay (7 pin)
-
1 15A fuel pump power fuse
-
1 VK EFI throttle cable
-
1 Mechanical fuel pump block-off plate
(text continues next
page)
|
 The
Project Car - an Indigo
Blue 1982 Holden Commodore VH SL/X, which was factory
optioned with cruise control. |
 The (messy) engine bay before the conversion.Non-stock items that can be seen
include Genie extractors, twin thermo fans and a 2.85L Commodore air cleaner housing and cold-air intake.
|
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