Plug & Play Holley EFI Wiring Harness (Casper's Electronics) / Holley ECU Package for 1986-87 Turbo Buick V6 Grand National, Regal T-Type or '89 Turbo Trans Am Vehicles!
Compatible with HP, Dominator, Terminator X and XMax ECUs (SELECT BELOW)
We have been a direct Holley EFI certified dealer and installer for ten years! Partnering with Casper's Electronics, we're now bringing the Holley EFI system to the Buick Grand National platform! Casper's Electronics has spent upwards of a year developing and testing the harness to ensure it's quality is unmatched. Couple that with our vast and deep rooted experience in tuning and calibrating vehicles on Holley EFI and you'll bring new life to your Turbo Buick V6 equipped build!
MAP LOCATIONS - factory location to utilize factory boost/tach module - second located at the back of the intake.
* 70A FUEL PUMP FEED- easy plug and play upgrade your fuel pump with 8 gauge wire.
* UNIVERSAL COIL CONNECTOR - Use smart coils, truck coils, original CCCI, or any future options - completely plug-n-play.
* BATTERY CABLES / POWER DISTRIBUTION - Included with all harnesses.
* FAN CONNECTION - Available and driven by 40A relay.
* CAN BUS - Under dash and under hood.
* ALTERNATOR FIELD FIX - Built in.
* AUX CONNECTOR - With Inputs/Outputs, including sensor return, +5V, switched 12V, constant 12v and ground available, add auxiliary connections under hood without cutting or splicing.
* FACTORY INTEGRATION - If you use the factory CCCI, your factory tach will work. If you use the factory MAP, your boost gauge will work (analog dash cars)
* POWERMASTER - Feeds for powermaster on all harnesses.
* A/C - Included on all harnesses.
* FUEL / OIL PRESSURE - Connectors included on all harnesses.
* INCLUDES INJECTOR HARNESS - Using connectors of your choice
* INCLUDES COIL HARNESS - Choose your setup (easily upgradable later)
A few notes about the production process..
* All new high temp, automotive spec wire - 125*C rated
* With the exception of the heater feed (OEM), all connections are sealed.
* Assembled on the same lines, with the same processes as our OEM harnesses.
* All splices in the harness are ultrasonic wire bonds.
* All harnesses are machine cut, stripped, and crimped.
* 100% electronic inspection of harness prior to shipping - includes point-to-point inspection and resistance testing.
* CASPERS has been building engine control harnesses for the aftermarket and as a Tier 1 OEM supplier for 35 years while specializing in the Turbo Buick since 1988.
* Currently, 75,000 harnesses are produced here in the US in our Loveland, Colorado facility utilizing approximately 3 million feet of wire - every month! .
* 3 Full ISO Quality/Safety/Environmental Certifications
* All harnesses are 100% MADE IN THE USA.
WHICH ECU TO USE WITH MY BUILD?
Dominator: Race cars that use both Hot/12V and Ground side Outputs, Low Impedance Injectors, Methanol Fueled, or those that want the MOST data. 40 Inputs and Outputs and a O2 Sensor than the Terminator Series. Will Control 4L80 Transmissions.
HP ECU: Street/Race Cars Converting from FAST XFI to Holley. Only Four Inputs/Outputs. Will control low impedance injectors and accepts both hot/ground inputs. No 4L80E Transmisson Control
Terminator X: Street Cars with 200R4 or TH400 Transmissions, High Impedance Injectors Only
Terminator X Max: Street Cars with 4L80E Transmission, High Impedance Injectors.