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Thread: Which injectors, and next steps?

  1. #1
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    Default Which injectors, and next steps?

    Finally got my SS exhaust welded enough to take the truck for a spin.

    m1
    50mm f&b
    hughes 0814al cam
    1.92 ported r/t heads
    1.6 RRs
    95 exhaust manifolds

    truck is a 2000. No idea what the stock injectors are, but I put in what i THINK are 21lb injectors (ive had them 15 years, sitting for 5).

    My tune is obviously way off, but engine sounds good. Whats the next step, should I use stock or the ford (21lb or??) injectors? should I put a wideband o2 in? For SCT how is tuning done? dyno or?

    Sorry for noob question. Last time I installed these parts was 2005 and B&G flashedy pcm.

    thanks guysm

  2. #2

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    Stock injectors at your HP level is fine, as long as they are clean. Are you going to add headers? If your not going to add headers, you have a couple options find a place that is familiar with the Mopar system (SCT or HPTuners) and have them dyno tune it or contact FlyinRyan for a canned tune.

  3. #3


    krs1r/t's Avatar
    want more inchs STROKE IT

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    Your next step is definitely a tune. Get air/fuel gauge installed so you have data to give the guy tuning.
    www.performanceinjectionequipment.com
    He always did my tuning with Sct and factory pcm

    Bad Luck Truck
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    niebs's Avatar
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    Wideband and a tune for sure.

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    thanks guys.

    no headers. ive had them crack, and clearance issues suck. the 95 mnifolds are a healthy 2 1/8" out, so its decent.

    Whats the wideband to get these days? I had an LM-1 but that was ages ago. I also tried to tune some with an SMT-6 but it just didnt work well, is there a way to tune an SCT yourself, starting with a canned tune from someone?

    Thanks

  6. #6

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    Quote Originally Posted by spawn_x View Post
    thanks guys.

    no headers. ive had them crack, and clearance issues suck. the 95 mnifolds are a healthy 2 1/8" out, so its decent.

    Whats the wideband to get these days? I had an LM-1 but that was ages ago. I also tried to tune some with an SMT-6 but it just didnt work well, is there a way to tune an SCT yourself, starting with a canned tune from someone?

    Thanks
    Funny. I've had the iron manifolds crack before any headers. Depends on the quality of the header.
    I've used the AEM brand wide band. That seems to have the latest requirements for hdmi tuning and it's all built in the gauge itself.
    I wouldn't think you'd start with a "canned" tune because you did put in a more potent cam w M1.
    I have no knowledge of setting up an STC tune other than w an outside acquisition of such.
    I have a bit stronger cam than you in my 2000 cc, heads mildly worked over with the bigger valves, stock injectors w a 52 tb, the Air Gasp mani, Spintec headers, MSD ign, Mopar performance pcm and the truck ran fine w no tune.
    Not saying I'm at peak performance but it's going ok for everyday driving at around 14.3 average afr.

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    I forgot all about it, but I need to set the fuel sync first. Ordered the AEM. Will get the fuel sync set and hook up the wideband and see where Im at. I think the stock injectors are in right now (theyre both pink, my old and the ones that came on the truck)

    Thanks bros!

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    If you're still looking to install new injectors, I have a set of Accel 21# injectors that I installed on my 95 V8 Dakota, but they were too much for the OBD1 system to handle, so I put the stock ones back in. The Accel's have less than 50 miles on them, so they are like new. Paid over $300 new from Hughes, will sell them for $200 if you have any interest. I will send pics also.

  9. #9

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    Quote Originally Posted by theo View Post
    If you're still looking to install new injectors, I have a set of Accel 21# injectors that I installed on my 95 V8 Dakota, but they were too much for the OBD1 system to handle, so I put the stock ones back in. The Accel's have less than 50 miles on them, so they are like new. Paid over $300 new from Hughes, will sell them for $200 if you have any interest. I will send pics also.
    PM sent

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    Got my truck back from Martin Saine (Thanks!) and started to do some test driving.

    I got the AEM installed but not sure whats off, its showing on the lean side at idle like 16-20 but my snap on 2500 showing rich on the o2 sensor. When I pop the throttle real sharp it stumbles, and I see afr on the wideband go over 20 and fall back down.

    At cruise the aem falls down to 14s etc.

    When playing with throttle at low rpms, the snap on gives me p0201/0202/etc momentarily, injector codes. Maybe try injectors?

    Also put a new Denso o2 in.

    Ill reach out to PIE for the tunr

  11. #11


    99dart's Avatar
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    Are you talking about the O2 sensor for the AEM gauge or factory O2 sensors in exhaust? NTK or Mopar sensors work best in exhaust.
    99 DA CC R/T
    13.97@100 w/modded kegger & ported TB
    12.96 @103 new 365 C.I
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