ECU
UPGRADES
Now with Integrated Boost Control & 2-program switch!
The Ash-SPEC ECU upgrade
has become well known in the Z32 community for offering
reliable power with factory drivability while maintaining
factory safety features. Safely increase your Z's power
and torque output with increased boost levels and a
properly configured program for your car's modifications.
Upgrading of the ECU consists of removal
of the OEM EPROM chip containing the ECUs program, installation
of an EPROM socket for ease of chip replacement, and
installation and testing of a new Ash-SPEC EPROM. 16-bit
ECU upgrades (shown above) require a custom daughterboard
to contain the new performance program.
Upgrades are available for both NA
and TT models, 5speed or automatic, and vehicles will
pass even the most stringent California emissions tests
- guaranteed!
The Engine Control Unit
(ECU) is a a small computer which monitors all engine
sensors and controls all engine functions for fuel delivery,
ignition timing, rev limiter, speed limiter, valve timing
control and emissions control systems. This computer
operates based on a set of values of which Nissan generated
in their R&D process of the powerplant, however,
they left a lot to be desired by the enthusiast. A new
program catered to your vehicle's modifications is generated
and installed. Programming which allows for safe running
of higher boost levels while maintaining "safety mode"
configurations allow you to improve performance in a
reliable fashion.
The Ash-SPEC ECU upgrades
were developed using the ZEMulator to finely tune operating
engine parameters in both street and dyno conditions
using a wideband O2 sensor setup. The utmost care has
been taken in the development of these programs to ensure
that the program you receive has been extensively tested
to ensure performance, reliability, and safety. The
same electronics and methods used to produce dynocharts
like this were also used to develop these programs.
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PROGRAM CLASS SELECTION:
Due to variations in fuel quality throughout
the country, we have constructed a set of programs specifically
tailored for anything less than 93-octane fuel, minimum
of 91 octane. These programs are called the "C-CLASS"
programs. If you have 93 octane fuel available to you,
the "A-CLASS" programming will be your optimal
choice of program type as it will take advantage of
the greater detonation resistance of this higher quality
fuel. With the C-CLASS programming you can run higher
octane fuel without any issues - it is just designed
to allow safe engine operation with the lower octane
fuels.
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NEW! Integrated Boost Controller:
We have developed an electronic integrated boost controller for TwinTurbo ECUs that utilizes the OEM boost control solenoids and retains the factory safety boost feature! This setup has a remote adjustment knob that allows control over the boost pressure the turbochargers produce. This option is available for those who still have the OEM boost control system in the vehicle. This option is available for an additional $75 and can be found in the Product Options drop-down menu below. For those of you who have done an NA to TT conversion and do not have the OEM boost solenoids or do not have a twinturbo ECU, please contact us for ordering. We have boost solenoids available and can upgrade your non-turbo ECU to operate the boost solenoids for an additional fee.
Ordering Information
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