Holley EFI 550-628N Engine Variable Timing Adjuster
Holley EFI 550-628N Engine Variable Timing Adjuster
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Holley EFI 550-628N Engine Variable Timing Adjuster

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Key item features

  • Now supports 2015-2017 Coyote engines
  • HP EFI kits available
  • Plug and Play main harness for 2011-2017 Coyote engines w/ stock cam shafts using stock coils (558- 110)
  • Plug and Play main harness for 2011-2017 Coyote engines w/ stock cam shafts using Holley EFI coils (558-122)
  • Compatible with HP or Dominator EFI
  • Pre-calibrated Ford sensor drop downs in the Holley EFI software
  • Ti-VCT Cam control down to 400 RPM
  • Commanded timing matched within 1 degree
  • User programmable tables enable the end user to fine tune aftermarket Ti-VCT compatible camshafts
  • 4 Built in Diagnostic LEDS make diagnostics easy in the event of a cam or crank sensor failure
  • Integrated stock cam position tables â€" eliminate tuning guess work, optimal drive-ability and power right out of the box
  • Main harnesses come terminated with Ford TPS and IAC connectors, making it easy to convert from a DBW throttle body to a manual throttle body
  • Installation of an external MAP sensor is required, we recommend part number 538-13 for N/A applications
  • Main Harnesses includes a Power Tap Connector, as a convenient source for power and grounds when adding additional sensors or actuators
  • CANBus communication between Coyote Ti-VCT and Holley EFI ECU for high speed data transfer and diagnostics
Current price is $2,969.95
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  • Free 90-day returns

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Columbus, 43215
Arrives by Wed, Apr 29
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