620-75302 Computer Re-Calibration & Monitoring (ECU) - Non Supercharged Engines
Have you modified your stock Mercury EFI engine by
adding high performance exhaust, a bigger cam, a high flow flame arrestor, or
added a supercharger?
Hardin Marine can recalibrate your Mercury ECU (computer) to yield the very
most of your engines power The ECU precisely controls fuel requirements,
detonation control, idle speed and RPM limitations We have dyno-tested
multiple combinations and know what works! Call us with your application
requirements and we will lead you to maximum horsepower from you EFI
engine Allow approximately 4-7 days turn around time.
***Results will vary depending on boat design, propping, atmospheric conditions, environment and drivers. We cannot guarantee speed or plane time increases with the many different applications. MPH and power increase % are helpful rules of thumbs and are in no way guaranteed.
*** We Do not offer any outboard tuning options***
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620-75309 ECM 555 Computer Re-Calibration & Monitoring (ECU) - 496 Mag and HO, 525 Non Supercharged Engines
Have you modified your stock Mercury EFI engine by adding high performance exhaust, a bigger cam, a high flow flame arrestor, oradded a supercharger?
Hardin Marine can recalibrate your Mercury ECU (computer) to yield the very most of your engines power The ECU precisely controls fuel requirements, detonation control, idle speed and RPM limitations We have dyno-tested multiple combinations and know what works! Call us with your application requirements and we will lead you to maximum horsepower from you EFI engine. Allow approximately 4-7 days turn around time.
***Results will vary depending on boat design, propping, atmospheric conditions, environment and drivers. We cannot guarantee speed or plane time increases with the many different applications. MPH and power increase % are helpful rules of thumbs and are in no way guaranteed.
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121-1210 Max Volt Catalyst Eliminator Computer
The Catalytic Eliminator Computer (CEC) is designed specifically for marine engine application testing. A team of marine electrical engineers created this easy to use testing tool to define failed secondary or post O2 sensors needed for replacement. There is no cutting or splicing of wires; everything is plug and play! Perfect for testing a replacement performance or racing only non-O2 based exhaust system with a header system to obtain peak engine performance data.
If your boat has fouled its post oxygen sensors and is no longer under the factory warranty, then you know what it costs to have new sensors installed and the trouble codes cleared. This unit will bypass post O2 sensors and solve a failed/plugged or no cat application.
Note:
- Only works with the 4 pin plug switching style O2 sensors.
- Will not work on the newer wide band O2 sensors with 6 pin plugs.
- Works with Mercruiser applications ONLY.
WARNING! This module is not to be used on emissions regulated waterways. The intent of this module is to allow the running of a catalyzed marine engine without the catalytic converters installed and without triggering any ECU error codes. With the engine operating in this condition, the emissions control system will be rendered inoperative. For this reason, do not operate the vessel on emissions regulated waterways. This computer system is not legal for any purpose other than testing purposes and not for use on any state or federal waterway.
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620-75304 "SE" Special Edition Tuning Kit For MerCruiser 454 & 502 Magnum MPI Engines
This kit is an excellent choice for those just beginning performance
modifications on a MerCruiser Magnum EFI Series engine. This kit includes
the "SE" Special Edition flame arrestor that utilizes a high flow
K&N clamp-on style filter element and high velocity air inlet adapter which
increases air flow by as much as 20%. The included Flow Command adjustable
fuel pressure regulator allows you to tune to the proper air flow by allowing
adjustments from 25 to 65 PSI.
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620-75305 "SS" Sport Series Tuning Kit For MerCruiser 454 & 502 Magnum MPI Engines
Do you want quicker acceleration, faster planing, and increased performance of up to 15 HP? If so, the "SS" Super Sport tuning kit for your MerCruiser Magnum MPI engine is what you need. This kit includes the "SS" Sport Series flame arrestor that utilizes a clamp-on style K&N element with our high velocity style air inlet. This kit include re-programming of your factory ECU in which we will modify both the fuel and spark curves as well as increasing your rev limiter and injector timing to 5400 RPM. This kit also comes with an adjustable billet Flow Command fuel pressure regulator that allows you to tune your air fuel mixture for optimum performance.
NOTE: You will need to send us your ECU with this questionnaire for re-calibration.
***Results will vary depending on boat design, propping, atmospheric conditions, environment and drivers. We cannot guarantee speed or plane time increases with the many different applications. MPH and power increase % are helpful rules of thumbs and are in no way guaranteed.
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625-4614 Mercury Racing 700 Intercooler Hi-Flow Fitting Kit
This fitting kit replaces the stock fittings with larger higher flow fittings allowing better cooling performance. Fittings are -10 AN.
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620-75303 Computer Re-Calibration & Monitoring (ECU) - Supercharged Engines
Have you modified your stock Mercury EFI engine by
adding high performance exhaust, a bigger cam, a high flow flame arrestor, or
added a supercharger?
Hardin Marine can recalibrate your Mercury ECU (computer) to yield the very
most of your engines power The ECU precisely controls fuel requirements,
detonation control, idle speed and RPM limitations We have dyno-tested
multiple combinations and know what works! Call us with your application
requirements and we will lead you to maximum horsepower from you EFI
engine Allow approximately 4-7 days turn around time.
***Results will vary depending on boat design, propping, atmospheric conditions, environment and drivers. We cannot guarantee speed or plane time increases with the many different applications. MPH and power increase % are helpful rules of thumbs and are in no way guaranteed.
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This Part has options, please click the button below to order.
MULTIPLE PART NUMBER OPTIONS. CLICK PART OPTIONS FOR MORE INFO -> Holley Sniper 2300 EFI Kit - Shiny or Black Ceramic
Using the Sniper EFI 2300 you can put an end to cold start issues, hesitations, vapor lock, and flooding on your Fairlanes, Galaxies, Falcons, Comets, F100s, Javelins, Rebels, Mustangs, Thunderbirds, Cougars and more. A Sniper kit is the #1 way to upgrade your classic to fuel injection in a cost-efficient way with just 4 simple connections required. After a simple installation designed to be completed at home in your garage or driveway with limited tools and the support of Holley's comprehensive installation manual and videos, you'll be enjoying better engine performance, improved miles per gallon and easier starting. This kit supports up to 350 Horsepower Naturally Aspirated and 285 Horsepower on Forced Induction setups with 2 x 100 Lb/Hr Injectors.
You don't have to be a tuning genius or computer wiz to convert your build to EFI. Our simple calibration wizard allows you to just answer a few questions about your engine and the system will begin self-tuning with no laptop required. Use the high resolution 3.5" full color touchscreen for tuning and gauge displays.
Now that you're beginning your EFI journey, you don't have to stop here! Sniper is apart of a complete ecosystem designed specifically to work together and support all of your EFI needs. This kit pair's seamlessly together with plug-n-play Hyperspark Ignition systems (coil, ignition box and distributors), fuel system's (fuel pump kits, modules, in-tank systems), air cleaners & digital dashes to unlock the full potential of your build.
- Bolt on 2300 Flange Carburetor Replacement
- Self-tuning ECU means you don't have to be a computer/tuning wiz to have EFI!
- Simple Calibration Wizard (answer a few questions about your engine and it creates the base map, then starts tuning on its own!) - NO laptop required!
- Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition & RPM)
- High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays
- Supports up to 350HP with Two 100lb/hr Injectors
- Equipped with C4 / C6 Ford transmission kickdown lever as well as TH350, 400 and 700R4 provisions
- Accepts many common 5 1/8" OEM or aftermarket air cleaner assemblies
- Throttle body mounted ECU – no extra boxes to mount
- Integrated ignition timing control
- Internal fuel pressure regulator eliminates the hassle of plumbing an external fuel pressure regulator (Preset to 58.5 PSI)
- The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides realtime Fuel Map Learn!
- OEM Style TPS/IAC and Fuel Pressure regulator, for years of dependable service.
- Included clamp-on oxygen sensor kit for 2.25" exhaust ensures a leak free oxygen sensor installation, with Stainless Steel T-Bolt clamps and a Stainless Steel (Weldable) oxygen sensor flange
- Sniper EFI Software free to download which allows for realtime tuning
- Printable throttle body flange template included
- Certified to ISO 8846, SAE J1171 & United States Coast Guard Requirements for Ignition Protection & Fire Resistance. Making Sniper EFI the perfect choice for carburetor to marine fuel injection conversions!
- A Flame Arrestor is REQUIRED for marine installations, such as part number, 720-1 or 720-13
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710-550-86 Holley Super Sniper Quadrajet EFI Kit - Classic Gold
Are you tired of rebuilding the 50+ year old Rochester™ Quadrajet® (Q-Jet™) on your classic Chevrolet, GMC, Buick, Oldsmobile, or Pontiac? The Sniper EFI Quadrajet™ is here to help! The first bolt-on spreadbore electronic fuel injected throttle body system that does not require any additional adapters, sealing plates, or intake manifold swaps! The Sniper EFI Rochester Quadrajet™ (Q-Jet) system retains the same great features as the 4150 Sniper EFI version such as; four 100lb/hr Injectors, built-in timing control, a 3.5" full-color touchscreen, and much more! This throttle body will support up to 500 horsepower naturally aspirated. In addition to all of these great tried and true features, the Sniper EFI Rochester Quadrajet™ (Q-Jet) system will fit most stock air cleaners and offers multiple fuel inlet configurations that allow for a stock appearing installation!
When it comes to converting to EFI, Sniper is the absolute best way to upgrade your car to fuel injection with just 4 simple connections required. Sniper is designed to be installed at home in your garage or driveway with limited tools and the support of Holley's comprehensive installation manual and videos. An afternoon in the garage and you will be enjoying improved engine performance, better MPG's and easier starting. After the simple installation it's time to let your Sniper begin the self-tuning process. Our user-friendly calibration wizard allows you to just answer a few questions about your engine and the system will begin self-tuning with no laptop required. You don't have to be a computer wiz or specialize in tuning to use a Sniper EFI system! Use the high resolution 3.5" full color touchscreen for tuning and gauge displays.
Sniper EFI is part of a complete ecosystem! Your new Sniper kit pair's seamlessly together with Holley's Sniper Hyperspark Ignition, Fuel System's, Air Cleaners, Throttle Body & Digital Dash to unlock the full potential of your build. Complete your fuel injection journey by checking out our full offer of ignition, fueling and accessories!
- Fits most stock Rochester Quadrajet™ (Q-Jet) air cleaners
- Self-tuning ECU means you don't have to be a computer/tuning wiz to have EFI!
- Simple Calibration Wizard (Answer a few questions about your engine and it creates the base map, then starts tuning on its own!) - NO laptop required!
- Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition & RPM)
- High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays.
- Supports up to 500hp with Four 100 Lb/Hr Injectors!
- Throttle body mounted ECU – no extra boxes to mount
- Designed to deliver the signature Rochester Roar at Wide Open Throttle!
- Integrated ignition timing control
- Transmission provisions on throttle lever for TH350/TH400 and 200R4/700R4
- Brake Booster adapter included, if required
- Universal Throttle and transmission kickdown bracket included
- The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides realtime Fuel Map Learn!
- OEM Style Throttle Position Senser (TPS)/ and Idle Air Control (IAC) for years of dependable service.
- Included clamp-on oxygen sensor kit ensures a leak free oxygen sensor installation, with Stainless Steel T-Bolt clamps and a Stainless Steel (Weldable) oxygen sensor flange
- Certified to ISO 8846, SAE J1171 & United States Coast Guard Requirements for Ignition Protection & Fire Resistance. Making Sniper EFI the perfect choice for carburetor to marine fuel injection conversions!
- A Flame Arrestor is REQUIRED for marine installations, such as part number, 720-1 or 720-13
- Requires external fuel pressure regulator, such as: 12-886 or 12-879
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This Part has options, please click the button below to order.
MULTIPLE PART NUMBER OPTIONS. CLICK PART OPTIONS FOR MORE INFO -> Holley Super Sniper Stealth 4500 EFI Self-Tuning Kit - Shiny, Black Ceramic
Wanting to convert your Dragster or Pro-street vehicle to Fuel Injection? Sniper, the #1 Fuel Injection Conversion system has you covered with the Stealth 4500. Featuring 8 100LB/HR Fuel Injectors this kit is the perfect option for any build looking to make between 800-1500HP. We have many Sniper options for builds going from mild to wild. This is the perfect set up for the more extreme build with multiple input and output options for sensor inputs and switched outputs to control external relays. 2.125" throttle plates, flows 1440 CFM for larger cubic inch engines. Included 2.5BAR Map sensor and programmable launch control via 2-step which can be triggered by the trans-brake input.
Simplicity is what we strive for when it comes to everything related to EFI conversion! Sniper is designed to be installed at home in your garage or driveway with limited tools and the support of Holley's comprehensive installation manual and videos. An afternoon in the garage and you will be enjoying improved engine performance, better MPG's and easier starting. You don't have to be a computer wiz or tuning professional to run a sniper kit on your build. Our calibration wizard allows you to just answer a few questions about your engine and the system will begin self-tuning with no laptop required. Use the high resolution 3.5" full color touchscreen for tuning and gauge displays.
Once you made your conversion to EFI, don't stop there! Sniper is an Ecosystem! This kit pair's seamlessly together with Holley's Sniper Hyperspark Ignition, Fuel System's, Air Cleaners, Throttle Body & Digital Dash to unlock the full potential of your build.
For a full list of features & benefits on what the Sniper Stealth 4500 has to offer, see below!
- Supports up to 1500HP Naturally Aspirated & 1250HP Boosted!
- Self-tuning ECU means you don’t have to be a computer/tuning wiz to have EFI!
- Simple Calibration Wizard (Answer a few questions about your engine and it creates the base map, then starts tuning on its own!) - NO laptop required
- Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition & RPM)
- Compatible with Draw through or Blow through forced induction applications
- High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays
- 2.125” Throttle Plates, Flow 1440 CFM for large cubic inch engines
- 2.5Bar MAP Sensor
- Integrated ignition timing control
- Programmable launch control via 2-step and timing retard. Both can be triggered by a trans-brake input
- Gen 3 Ultra Dominator Style 4 Bolt Air Cleaner Flange
- -8AN Fuel Inlets
- The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides realtime Fuel Map Learn
- Built-in Single Stage Wet or Dry progressive nitrous control
- Three Programmable 0-5V Sensor Inputs for Oil/Fuel/Dome or Nitrous Pressure or other critical information
- Six Programmable Ground Outputs, Five programmable ground inputs. These can be used to trigger or control external devices such as nitrous solenoids, boost control solenoids. Or to provide the ECU with an Input to turn on function such as an ignition timi
- One +5v Reference Output - +5V Power Supply for 0-5v Sensors, One Sensor Ground – Ground supply for 0-5v Sensors
- Throttle body mounted ECU – no extra boxes to mount
- Required external fuel pressure regulator, 12-848 is recommended
- Customizable secondary fuel pump output (TPS, RPM or Boost enabled)
- User friendly Boost Control with handheld adjustability
- Free Software included comprehensive datalogging tool to help you maximize the performance of your engine
- Real-time datalogging to the included 3.5” Touch Screen, allows you to save information to the SD card without needing a communication cable
- Programmable Target Air Fuel Ratios per Boost level
- Advanced boost control available via free Sniper EFI tuning software, including Boost vs RPM and Boost vs Time
- OEM Style TPS/IAC, for years of dependable service
- Included clamp-on oxygen sensor kit ensures a leak free oxygen sensor installation, with Stainless Steel T-Bolt clamps and a Stainless Steel (Weldable) oxygen sensor flange
- Patent Pending
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