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Thread: Mega Squirt high quality custom harnesses

  1. #1
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    Default Mega Squirt high quality custom harnesses

    I've designed and built several Mega Squirt harnesses for various Datsun projects. I'm an Electronics Engineering Technologist so I've designed these harnesses for optimal noise immunity with high grade wiring to provide you with a highly reliable backbone for your Mega Squirt EFI system. Electronic noise can cause all sorts of gremlins in your system. To eliminate these issues all harnesses are configured with a robust grounding system as well as shielded cabling for all sensors. The wiring is heat and chemical resistant to provide you with years of trouble free use. EV1 connectors for the injectors use the quick disconnect plugs for ease of installation and removal – no more fighting with wire clips.

    The basic harness is designed to plug into the stock sensors and injectors found on a stock L28ET engine. This includes the injectors, 82-83 dizzy with optical encoder wheel (allows the use of stock or custom encoder wheels), TPS (after market – stock is a throttle position switch – MS requires a throttle position sensor which is a potentiometer rather than a switch), CHTS, Knock sensor (wired to main connector but not hooked up – MS requires extra hardware for the knock sensor), ignition coil, IAT (after market – stock IAT is built into the AFM but should be removed due to air restriction – MS uses a MAP sensor so the AFM is not required) and WBO2 sensor and power. Connectors for the IAT, TPS and WBO2 will vary from installation to installation so the buyer can provide their own connectors for installation during the build of the harness or install them on the prepped associated cabling. Spares can be run for extra power, etc as requested.

    Harness also includes two relays. One will provide power for an ignition enabled fuse panel which will provide fused power for the MS ECU, injectors, ignition coil, WBO2 and fuel pump as well as spares for additional power nearby the ECU. The second relay provides ECU control and powers the fuel pump. This can be configured to plug directly into the stock body wiring harness on the 280ZX and control the stock fuel pump using the stock fuel pump wiring if requested.

    Optional custom cabling such as COP/CNP distributorless wiring is also available. Typically the connectors will be installed with filter caps in close proximity to the COP/CNP connector to eliminate back EMF from the coil discharge and integrated into the harness. Custom lengths and spacing for connectors can be built to the buyer’s specification.

    Basic harness is $550 including harness relay system. Basic customization is also included in this price. Additional cost for extra sub harnesses such as the COP/CNP is typically about $150. I can also build and test your MS 2/3/3x ECU and load a base tune but this will be limited to my time schedule and number of custom orders. This will allow the buyer to plug in the harness and ECU and get the car up and running (provided the car is mechanically functioning correctly) with minimal fuss. A proper dyno tune is highly recommended for optimal performance.

    If you have any questions please feel free to contact me.

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    "Rachel" - 1972 Datsun 240Z
    "Kayla II" - 1983 Datsun 280ZX
    "Unnamed" - 1983 Datsun 280ZX Turbo
    "Unnamed" - 1993 Nissan 300ZX Convertible
    "Zathina" - 2009 Nissan 370Z 6MT PB Touring Sport

  2. #2
    Registered User madkaw's Avatar
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    Very nice indeed
    Steve
    71 240z,bw-5sp 2.4-40 over,balanced,e-88,big valves,ported&polished, stage2,header, triple Mikuni's 40's
    3.90 Subaru STI LSD

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