Holley [1] has released updated V2 versions of its HP and Dominator EFI management systems, adding a host of features — including boost control for turbo and some supercharged applications.
[2]“Current owners of the HP and Dominator boxes can also upgrade to the V2 software free of charge by going to holleyefi.com [3],” says Doug Flynn, product development manager at Holley.
Other upgrades include expanded data logger capabilities, integration with traction control and a new configurable gauge panel display.
“We’ve been working with Davis Technologies [4] on the traction control,” adds Flynn. “It does require a separate Davis/Holley traction-control module.”
The boost channel can be configured to control boost based on time, gear, speed and manual inputs. There’s also a function that can build boost on the starting line by altering timing, fuel and even nitrous application, and there are over-boost safety limits.
[5]The traction-control feature also requires associated driveshaft-signal hardware in addition to the Davis/Holley module. Once the driveshaft speed information is available, the Holley ECU can be programmed to reduce timing, nitrous, boost or drive-by-wire throttle position to combat tire spin.
Other new features include quick-start ignition and fuel strategies for LSX engines and quick-start fueling for all engines, option for VE-based fueling strategy, configurable user password protection and additional time-based timing retards.
The Holley HP system can be programmed with a laptop or optional 5.7-inch LCD touch screen. It works with a variety of EFI systems and comes a plug-n-play capability for LSx engines. The Dominator is preferable for high-end racing applications with additional input and output options. It includes electronic-transmission controls and dual-channel wide-band O2 sensor controls.
Holley offers a wide variety of EFI kits, including the Stealth Ram, that utilize the HP management. There’s also a step-by-step HP and Dominator component selection guide in the Holley catalog to set up the proper EFI system for street or race applications.