HomeForumsTechnical – GeneralFuel SystemsInjectors to suit application

This topic contains 21 replies, has 8 voices, and was last updated by Profile photo of jlss jlss 8 years, 3 months ago.

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  • #10964
    Profile photo of jlss
    jlss
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    Member since: May 7, 2015
    Posts: 155

    hey guys after a set of 8 injectors for a 304 Holden soon to be supercharged with a whipple 2.4 inter cooled system?? I’ve been looking at the original injectors on eBay that have been capped to higher lb from 19 up to 42??? Wondering what they are like if anyone has used them ?? Or buying the newer ls style green Bosch ones that are 42s and if I do do I need to modify them??? And also would I be better off buying a new set of say Lucas 42 ev1 style or a set of Holley or yeah any help would be awesome cheers???? :bye:  :bye:

    #10966
    Profile photo of exec24
    exec24
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    Member since: April 8, 2015
    Posts: 435
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    im not sure if they will suit, but i currently have a set of 8, 36lb supercharged v6 injectors that have been reco’d and never used their currently on ebay too so you might have seen them already

    i bought them for my 355, had them reco’d then got told wont need them

    • This reply was modified 8 years, 12 months ago by Profile photo of exec24 exec24.
    #10968
    Profile photo of VRSenator065
    VRSenator065
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    • VR Senator LSx454 1960 Kombi (project) 1921 Nash Hot Rod (future project)

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    I just bought Injector Dynamics for mine, they are basically a Bosch motorsport injector then tweaked.  they are expensive but pretty widely regarded as one of the best.  I went ID750 for my application.

    #10972
    Profile photo of cava454
    cava454
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    Member since: February 20, 2015
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    60lb minimum on this combo.

    #10992
    Profile photo of Immortality
    Immortality
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    Member since: August 31, 2015
    Posts: 535

    Rather then just us all throwing numbers out there for what ever injector size we think it it needs the OP is better off going to one of the many online fuel injector calculators which will tell you what you will need with a lot more accuracy.  All you really need to know is the expected power output, and the fuel pressure you will be running which really depends on the injector type/brand you intend to use although most injectors are tested/rated @ either 3 bar or 3.5 bar.  The rest of the info will be on the website.

    This is one I like to use https://www.rceng.com/technical.aspx

    • This reply was modified 8 years, 12 months ago by Profile photo of Immortality Immortality.
    #10997
    Profile photo of VRSenator065
    VRSenator065
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    ^nice work Immortality, have put that link in the Tech section :good:

    #18175
    Profile photo of Brock
    Brock
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    Member since: July 4, 2016
    Posts: 10

    That’s awesome info, I’m running 60lbs Siemens vdo deka injectors on e85 mafless tune runing 10 lbs boost with side mount blower on a 304 with 210/50@495 cam hypertek flat tops on a kalmaker tune, got 380hp at the tread with loads of talk. Auto 2800 hi stall, stage 11 shift kit 3:9 gears. Loving it for a 5 ltr! 100 shot noz for Xmas would be nice.

    #18184
    Profile photo of VRSenator065
    VRSenator065
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    That’s awesome info, I’m running 60lbs Siemens vdo deka injectors on e85 mafless tune runing 10 lbs boost with side mount blower on a 304 with 210/50@495 cam hypertek flat tops on a kalmaker tune, got 380hp at the tread with loads of talk. Auto 2800 hi stall, stage 11 shift kit 3:9 gears. Loving it for a 5 ltr! 100 shot noz for Xmas would be nice.

    You got a build thread of this bad boy on here, or have I just missed it?  Its not in your build link on your info on the left?

    #18234
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    Michael
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    Member since: March 2, 2015
    Posts: 208
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    Someone buy my 8x 1700cc Bosch injectors.

    $500

    #18235
    Profile photo of cava454
    cava454
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    Member since: February 20, 2015
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    What’s your number.

    #18236
    Profile photo of VRSenator065
    VRSenator065
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    Coz i know this is crazy, but just call me maybe….

    #18404
    Profile photo of jlss
    jlss
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    Member since: May 7, 2015
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    Sorry for late reply guys ended up going with the bosch green 42’s was told for the setup they were the minimum. Seems to be running fine so far so fingers crossed. :good:

    #18407
    Profile photo of VRSenator065
    VRSenator065
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    Great to hear. There’s so many ways to skin a cat…..

    #18409
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    sands vs
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    Sorry for late reply guys ended up going with the bosch green 42’s was told for the setup they were the minimum. Seems to be running fine so far so fingers crossed.

     

    Have you checked your AFR ?

    #18411
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    cava454
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    Seems small for the combo. I would of gone 60’s. Leaves some head room.

    • This reply was modified 8 years, 3 months ago by Profile photo of cava454 cava454.
    #18413
    Profile photo of VRSenator065
    VRSenator065
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    But a prob Cav is the bigger you go the less control you have at small flows which comes into play in the tune for a streeter which spends a lot of time at very light throttle openings.  Bigger isn’t always better.  Goldilocks, not too small, not too big, but just right. ;-)

    #18414
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    cava454
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    60’s trim up nicely.  Would like to see the duty cycle on those 42’s.

    I’ll have big ones in mine.

    • This reply was modified 8 years, 3 months ago by Profile photo of Admin Admin. Reason: language
    #18417
    Profile photo of VRSenator065
    VRSenator065
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    You should coz basially race car, lets face it, will spend most of its life at wot….

    Btw, bit poor when a moderator has to be moderated for language….

    #18420
    Profile photo of cava454
    cava454
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    Member since: February 20, 2015
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    Haha I forget sometimes

    I still don’t know how to abuse my powers LOL

    #18424
    Profile photo of VRSenator065
    VRSenator065
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    That allright buddy, i am here to help ha ha.

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