found some injectors in the jy-which ones to use

  • #1

    found some injectors in the jy-which ones to use

    I was at the pull-a-part today looking for some injectors for my NA2T build. First I came across the famous 1970's Mercedes 450 and got all 8 injectors from it. Are these 420cc or 440cc? I can't remember. I know injectors rarely go "bad" but these are in pretty bad shape. Almost all the pintle caps are gone, think i can fix that but some of the connectors are FUBAR, not too sure if I'm going to be able to use these. I did however find a 1986 toyota supra. Pretty sure it was a non-turbo. I'm trying to figure out what size these supra injectors are. The plastic wire connector part is a kind of a greyish white color and the pintle caps are green. The injector body is black and I'm pretty sure they are low-imp as they measured out at about 2.4ohm. I tried to do some research but cannot determine what size injectors these are for sure. Can anyone give any info/insite? Whichever set I use (if either) I plan on having them cleaned and flow tested and all that. The Supra injectors are in much better shape than the Mercedes and I hope to use them if it is at all worth it. I also managed to get the injector connectors in case I need them. So, what size are these Supra injectors and should I even use them for my NA2T build? BTW, I have a set of stock dual/side feed, low-imp turbo injectors that I can use but would prefer to start with a little more headroom if possible. Thanks for any info anyone can provide.
  • #2
    Go to witchhunter.com and look up injector flow ratings using the part numbers on the side of the fuel injectors.

    You will need to have those junkyard fuel injectors cleaned and flowtested before use. From all the Mercedes Benz and other fuel injectors that I have pulled from the junkyard, all of them were at least 10% - 20% below their rated flow values before cleaning.
    1984 300ZXT
    1986 300ZX 2x2 NA2T
    2000 Porsche Boxster
    2007 Toyota Yaris
  • #3
    0
  • #4
    I did what Bemis said and witchhunter came back with them being 190cc injectors! The picture looked identical to what I have and the wire connector is exactly like the earlier Z31. Maybe this was a MKII supra?? The number on the side of the injectors are 23250-45011
    I don't know if this supra was turbo or not because the exhaust manifold and all the intake plumbing were gone. This sucks, I was all excited that I found some bigger injectors for next to nothing! Hopefully I can salvage the Mercedes injectors. Thanks for the help.