Engine Latest Topicshttps://gearcrushers.net/forums/forum/524-engine/Engine Latest TopicsenHolly Fuel Injectionhttps://gearcrushers.net/forums/topic/20597-holly-fuel-injection/ Tomorrow I have a meeting with "The Car Guys Garage" to see about tuning the GM Crate HT383 engine with the Holly Terminator Stealth EFI Master (NOTE: This is the Holley Terminator Stealth BUT with the HP/Dominator ECU..  Starting v6 never upgrade ECU FW with handheld plugged in.  How can you tell if you have the HP/Dominator ECU?  Guy said the back of the ECU on the far right is a blue plug like the one shown here its HP/Dominator ECU.  The blue plug is where you plug your USB cable from laptop to)

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Sounds like they have some good reviews and so figured let's give them a shot at figuring out how to get my truck running like it should. It has been very very difficult to find anyone that even wants to touch this Holly setup.  Apparently starting at $650 they are willing to give it a shot.  They said 2-3 days of tuning and running it on the dyno I'll have it back purring like a kitten.

I'm hoping the fuel economy gets a bit better.  Its worse now then ever before the new engine and the fuel conscious Holly EFI

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Holly Terminator 550-441k - $3500 (on average)

Holley has you covered with the new Terminator Stealth Throttle Body Fuel injection System. Now you can have all of the benefits of EFI and maintain the traditional looks of a carburetor. Holley's Terminator Stealth EFI systems have the same great self-tuning features of our Terminator EFI in a new stealthy package! - Easy to install - No computer experience required - Handheld tuner included - Simple multiple choice set-up wizard - Self-tunes while you drive - Upgradable to complete laptop control without buying another ECU - Carburetor replacement EFI from the fuel systems experts!

Features:

  • Carburetor looks with the drivability of EFI
  • Trouble-free performance with today’s fuels - put an end to vapor lock and fuel varnish problems!
  • Fits V8 engines from 250-600 horsepower
  • 4150 style 4BBL mounting flange - Bolts on in place of carburetor
  • Available in Polished, Classic Gold and Hard Core Gray™ finishes
  • Fully self-tuning ECU - No laptop required
  • Includes full color, 3.5” touch screen LCD for both basic and advanced tuning options
  • Timing control option for GM Small Cap HEI and Ford TFI distributors
  • Connections for Ford, GM TH350, 700R4 and other transmission linkages
  • Optional free software upgrade for full laptop control
  • Easy plug and play harnesses with minimal connections
  • Virtually maintenance free - keeps your vehicle reliable and ready to drive
  • Master Kits include complete fuel system: fuel pump, filters, 40ft of hose (feed & return), billet regulator and all fittings including fuel tank return line bulkhead fitting
Quote

The Terminator X Stealth 4150 2x4 kit comes ready to install. All you need to have is a fuel system that can support EFI fuel pressures (43-58 PSI) and Holley recommends an ignition system that has timing control, such as the Sniper HyperSpark systems.

Specs:

  • BrandHolley EFI
  • CFM950
  • Emission Code3
  • FinishHard Core Gray
  • Flange Size4150
  • Fuel Pressure43 Psi
  • Height3.25"
  • Injector Size80Lb/Hr @ 43PSI
  • Product TypeTerminator Stealth Kit
  • Throttle Bore1.750 inch
  • UPC090127732908
  • Part Number550-441K

Manual included

 

 

holly_550-441k_manual.pdf

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