ZR-1 ZR-1 ZR-1 ZR-1 ZR-1 ZR-1 ZR-1
Haibeck Automotive Technology
Custom Engine Calibration
These changes can be made to an existing calibration
Calibration services that are available
A short list of the adjustable parameters:
Ignition Spark Timing
Knock Sensor Filtering
CAGS (forced 1 to 4 shift) Disable
EGR Activity ('93-'95)
MAT Sensor Ignition Spark Timing Retard Values
One or all of the above settings can be changed in an existing calibration. A change can be made without changing any other data in an existing custom calibration except for the specifically requested change.
$100 for the first modification, $50 for each additional modification. Each line above describes an individual modification.
Additional fuel and Anti-Backfire Mode for engines with headers:
These features can be added to an existing calibration for $100.
Operation without the secondary throttle control system:
The control of the secondary throttle system can be removed. With this modification the engine idles on the primary fuel injectors and runs on the primary and secondary fuel injectors when the throttle position reaches 1%. Normally there is no noticeable effect on drivability. All of the secondary throttle system parts can be removed except for the diagnostic sensor. Remove the vacuum hose from the sensor and leave the sensor port exposed to the atmosphere. This is a good alternative when secondary throttle system repair parts are not available. $200.