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  1. #11
    crashtest dummy turbo MKI's Avatar
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    Quote Originally Posted by williamb82
    no, all 7mgte's are low impedance(black top)440cc/min. 86.5-88 7mge's are low(yellow top)295cc/min and 89+7mge's are high(green top)310cc/min
    The 7M-GE injector I sent was a yellow top (I think it was from an '88 supra). I was tired of all the mis-information about injectors - I thought this was a great opportunity to actually find out and have all the common ones tested.
    Last edited by turbo MKI; 12-22-2006 at 03:05 PM.
    damon
    '76-'77 Celica GT's (x3)
    '81 MKI Supra's (x3.5)
    '82-'86 MKII's (lost count)
    '88 Celica all-trac
    '88 2WD Truck
    '87t -'90t MKIII's

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  3. #12
    CelicaSupra.com Member
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    Damon

    This is great info. Did you have more than one injector of each type tested to make sure that all the units of each type flowed reasonably close to each other? This way you wouldn't be measuring an oddball.
    84 mt 6mge with intake, exhaust, suspension, brake, and wheel mods
    85 mt 6mge stock

  4. #13
    crashtest dummy turbo MKI's Avatar
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    Quote Originally Posted by StanS
    Damon

    This is great info. Did you have more than one injector of each type tested to make sure that all the units of each type flowed reasonably close to each other? This way you wouldn't be measuring an oddball.
    I had given him a ton of 7M-GTE ones, and a pair of the others. I gave him all the GTE to get the best matched set. W/ the others, even though I was only having them tested, he still cleaned them to assure that they were as close to spec as possible.
    damon
    '76-'77 Celica GT's (x3)
    '81 MKI Supra's (x3.5)
    '82-'86 MKII's (lost count)
    '88 Celica all-trac
    '88 2WD Truck
    '87t -'90t MKIII's

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  6. #14
    CelicaSupra.com Member
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    So he measured 2 each of 5 types? Great, great, info.
    84 mt 6mge with intake, exhaust, suspension, brake, and wheel mods
    85 mt 6mge stock

  7. #15
    crashtest dummy turbo MKI's Avatar
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    Quote Originally Posted by StanS
    So he measured 2 each of 5 types? Great, great, info.
    Yep
    thanx.
    damon
    '76-'77 Celica GT's (x3)
    '81 MKI Supra's (x3.5)
    '82-'86 MKII's (lost count)
    '88 Celica all-trac
    '88 2WD Truck
    '87t -'90t MKIII's

  8. #16
    CelicaSupra.com Member Supra Bob's Avatar
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    Sorry to dig up the old thread...

    I am kind of surprised that the 5M-GE injectors were rated at 182 @ 43.5 PSI. Stock Fuel Pressure on a 5M is 36 i thought? Which, if thats the case, then they should be flowing about 195-ish at 43.5... Interesting results...


    As for the Yellow Tops, Damon, they are from a 89+ 7M-GE and 'yota rates them at 315. Its actually the exact same injector that the early 7M-ge's had (rated at 295) only ran at a higher Fuel pressure.
    Bob

    2005 Mercury Mountaineer 4.6 AWD 16.0 @ 86
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  9. #17
    CelicaSupra.com Member Peewee's Avatar
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    Quote Originally Posted by Supra Bob
    I am kind of surprised that the 5M-GE injectors were rated at 182 @ 43.5 PSI. Stock Fuel Pressure on a 5M is 36 i thought? Which, if thats the case, then they should be flowing about 195-ish at 43.5... Interesting results...
    255 kpa is 37psi.

    5MGE injectors are 255kpa
    UZZZ12 - ~350rwhp - 13.8@101
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  10. #18
    CelicaSupra.com Member Dangerous Ken's Avatar
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    Recently got back injectors from Witchhunter.
    Sent 16 Yellowtops 2325070040.
    1 was bad, 4 didn't flow until cleaned.
    At 43.5psi, 2.5 ohms, all 15 fell 310, 312, 314 cc flow.
    Was able to get two sets of six, matched to 0.7%.

    Ken

  11. #19
    crashtest dummy turbo MKI's Avatar
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    Great - its good to see that the results from the ones I had done are consistant. Did you like dealing w/ him? He changed how he charged a little from when I first sent him some injectors (I had my truck injectors done this spring), but it was still a good deal.
    damon
    '76-'77 Celica GT's (x3)
    '81 MKI Supra's (x3.5)
    '82-'86 MKII's (lost count)
    '88 Celica all-trac
    '88 2WD Truck
    '87t -'90t MKIII's

  12. #20
    CelicaSupra.com Member Dangerous Ken's Avatar
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    Gordon charged $15 per injector (didn't charge for the one with a bad coil) and $7.50 for priority shipping.
    Replaced filters, grommets, o-rings, and seals.

    What I was surprised with is 16 were sent and 1 was bad and 4 were clogged.
    That's 1/3 that really neded work.

    My thought was to send in a large number to match the six, but what if you are the average guy sending in just six?

    Anyways, if you have an engine out of the car with the intentions of running it again (rebuilt, turbo'd, whatever), I highly recommend testing / refurbishing the injectors. Witchhunter is still one of the cheapest to get this done.

    Ken

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