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  1. #1
    Just a bit of BOOST
    Join Date
    Jun 2019
    Location
    Sacramento, CA
    Posts
    1

    Question Fuel Injector Equivalents

    Hey All,

    Does anyone know of a new(er) injector that can be swapped in place of the stock 30# units, with the stock PJ ECM? I was able to find (7) 30# injectors and had them cleaned and tested, but was told that none of them meet the specifications. I've scoured through Ebay and Craigslist to try and find something that could work, but I'm at a bit of a loss and not sure what to do. Any help would be greatly appreciated.

    Thank you

  2. #2
    Administrator SVOeric's Avatar
    Join Date
    Mar 2002
    Location
    Richmond, KY
    Posts
    12,914
    SVO's: 86-1C & 86-1E
    The bigger trick to injectors on SVO's -- they use Low Impedance injectors (2.3ohms if memory serves). Where most of your more modern injectors are high impedance (12-14 ohms range).
    The 30# hr flow converts to about 309 cc/min -- but you won't get the correct flow if a high impedance injector is used -- also fair possibility of burning killing the injector driver in the computer.

    what may be a better idea, maybe even more cost effective...
    Buy a extra set of used 30# injectors here (or elsewhere, they can be found fairly cheap)
    Send them to someone that does injector cleaning -- we have a vendor that does that for us, SVPU.com --
    send them 8 injectors, they clean and flow them all, and using the flow ratings, you grab the 4 injectors that have the best/closest performance.
    you then have 4 cleaned spares, to sell or to keep just in case.
    Eric C
    SVOCA Webmaster

  3. #3
    OVER-BOOST!! GAboySVO's Avatar
    Join Date
    Dec 2002
    Location
    Acworth, GA
    Posts
    3,286
    SVO's: 2 - 9Ls
    Looks like rock auto has some re-manufactured units.

    https://www.rockauto.com/en/moreinfo...33660&jsn=2267
    Mike S

    '86 SVO 9L Leather
    '86 SVO 9L Road Warrior
    '96 300ZXTT

  4. #4
    OVER-BOOST!! gbeaird's Avatar
    Join Date
    Apr 2002
    Location
    Pearland, Texas
    Posts
    2,127
    SVO's: '86 2R
    Quote Originally Posted by SVOeric View Post
    The bigger trick to injectors on SVO's -- they use Low Impedance injectors (2.3ohms if memory serves). Where most of your more modern injectors are high impedance (12-14 ohms range).
    The 30# hr flow converts to about 309 cc/min -- but you won't get the correct flow if a high impedance injector is used -- also fair possibility of burning killing the injector driver in the computer.

    what may be a better idea, maybe even more cost effective...
    Buy a extra set of used 30# injectors here (or elsewhere, they can be found fairly cheap)
    Send them to someone that does injector cleaning -- we have a vendor that does that for us, SVPU.com --
    send them 8 injectors, they clean and flow them all, and using the flow ratings, you grab the 4 injectors that have the best/closest performance.
    you then have 4 cleaned spares, to sell or to keep just in case.
    To add: Paul's team turns the injector cleaning/testing service usually in one business day. It took forever for _me_ to send our set to them, but we got them back very quickly, with new pintle caps and o-rings. SVPU may even have a source for new injectors if yours fail. Definitely a source to check.
    Gene Beaird,
    86 2R SVO, G Stock,
    Pearland, Texas

  5. #5
    12 PSI Boost
    Join Date
    Sep 2009
    Location
    Surrey, BC
    Posts
    26
    I had my 4 original injectors tested and cleaned (locally here in Canada) last year, out of my 85.5. 1 turned out to be no longer usable. I reluctantly bought a re-manned Autoline / OEM injector and installed it, only to have it also leak fuel at the body. I then bought and installed 4 new injectors from Rock Auto (I believe they were the Standard brand) and those have worked well ever since. I assume they are the 35lb equivalent.

  6. #6
    Pimpin Pumpkin Carver Laredo's Avatar
    Join Date
    Aug 2006
    Location
    Stillwater, MN
    Posts
    1,190
    SVO's: 86 2R
    I have purchased several sets of injectors over the years from Racetronix with 100% satisfaction.
    "If there's no plan, what can go wrong...?"

  7. #7
    Administrator SVOeric's Avatar
    Join Date
    Mar 2002
    Location
    Richmond, KY
    Posts
    12,914
    SVO's: 86-1C & 86-1E
    Remember 35# are 85.5 / 86, 30# are 84 / 85 -- just don't want to get people confused that they are interchangeable, cause they really arent
    Eric C
    SVOCA Webmaster

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