he 1985-1988 Pontiac Fiero
V-6 Turbocharger System.
The Design One Systems
turbocharger system
provides a reliable,
fuel efficient method
to increase the performance
of a V-6 Fiero equipped
with either a manual
or an automatic
transmission.
The
Stage One System
provides 7-8 PSI boost
in manifold pressure
to produce about 200
horsepower and a
0-60 time of under 6
seconds without sacrificing
engine reliability.
The Stage Two System is
an add on to the
Stage One system.
It allows 9-10 PSI boost
and incorporates some
sophisticated engine controls
to add increased reliability
as well as increased
performance. Both stages
have been designed
for ease of installation
and maintenance, and
all materials necessary
for the installation are
included in the kit.

Stage One
- Turbocharger -
The turbocharger is a
high technology unit
utilizing some of the
most recent advances
in materials and design.
The center bearing housing
is water cooled by the
engine coolant. This is
to prevent coking of the
oil after shutting off
the engine, a feature
which substantially
increases turbocharger
bearing life. The maximum
boost pressure is controlled
by a wastegate which is
integral to the turbocharger.
The turbocharger has been
sized to produce a usable
performance increase at a
relatively low engine RPM
without compromising high
RPM performance. The result
is a high performance road
car without the wear that
goes with high RPMs.

- Intake System -
A new high flow reusable
air filter is included in
the kit. All the tubing
supplied is 304 Stainless
Steel and is connected
to the turbocharger and
intake manifold with high
temperature silicone hose.
A compressor by-pass valve
is also used to allow
the compressor to be
by-passed when there
is a high manifold vacuum.
This not only prevents
damage to the turbocharger
during quick throttle closing,
like when shifting during a
hard acceleration, but also
helps maintain compressor
RPM while shifting gears
thus reducing turbo lag.
The M.A.T. (manifold air
temperature) sensor is
relocated for optimum
performance and the stock
M.A.P. (manifold air pressure)
is replaced with 2 atmosphere
version. All emission
controls are retained to
ensure clean operation.

- Exhaust System -
All of the exhaust system
components are constructed
of 304 Stainless Steel to
insure long term reliability.
The turbocharger outlet
includes a provision for
the original oxygen sensor.
On Fieros equipped with an
automatic transmission the
stock stainless steel
exhaust system is retained.
Those equipped with a manual
transmission get a completely
new exhaust system with catalytic
converter and special low
restriction mufflers.

- Heat Shielding -
All of the heat generating
components are protected
from the heat sensitive
ones by heat shields constructed
of materials from the most
recent advances in thermal
shielding. These heat shields
are stainless steel clad ceramic
and high temperature aluminum
clad ceramic and contain no
asbestos but provide safe
insulation of the heat
generating components in
the engine compartment.

- Computer Control
- The engine is controlled
by the stock Engine Control
Module (ECM) which is calibrated
with respect to ignition timing
and fuel delivery to operate
properly under boost conditions.
Any problem with the stock ECM
can easily be diagnosed by
the stock GM service trouble
codes and serviced by any
qualified mechanic.

- Documentation -
The installation manual,
included with each system,
describes the theory
of operation, installation
and maintenance procedures,
trouble shooting and
repair tips, and recommended
operating procedures.
Only simple hand tools
are required for the
installation. All special
tools are provided. Installation
time is approximately
14-16 hours.
- Spare Parts -
Design One Systems maintains
a complete inventory of all
components used in the
turbocharger system for
maintenance and repair.
In an emergency, virtually
any part can be delivered
within 48 hours.
 |
Stage Two Upgrade
he Stage Two System
which is an add on
to Stage One, includes
all of the features
as follows:
- Engine Control
Module - The Engine
Control Module (ECM) is
modified to accept input
from a knock sensor in
order to control the ignition
timing . When detonation
(knock) is detected by the
knock sensor, the ignition
timing is retarded to
eliminate the knock.
This allows the ECM to
compensate for varying
conditions which may be
conducive to knock, like
low octane gasoline or
excessive heat in the
combustion process. The
result is a more optimum
control of the engine under
all operating conditions:
that means efficient and
reliable, high performance
power.

- Knock Sensor -
The knock sensor detects
detonation in the engine
combustion chambers and
supplies information to the
ECM about its severity.
The ECM uses this to
reduce the ignition advance
in order to eliminate
the detonation. If the
engine is operating in
the boosted mode, the ECM
will retard the ignition
timing to eliminate the
harmful detonation.
 |
- Pricing for Stage One -
F.O.B Oklahoma City, Oklahoma
- 1985-1988 with manual
transmission -
$3200 suggested Retail.
- 1985-1988 with automatic
transmission -
$3000 suggested Retail.
- Pricing for
Stage Two,
F.O.B. - Oklahoma
City, Oklahoma
- 1985-1988
with manual transmission -
$800 suggested Retail
- 1985-1988
with automatic transmission
- $800 suggested
Retail
ptions and other performance items
will be available as they are developed.
If you do not see an item you would
like, please ask us about it.
To ask questions, make
comments or otherwise
discuss the Northstar
or Turbo conversions,
try our Forum on
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