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Dyno'd my car - 3400 S/C

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  • #16
    Originally posted by 1988GTU View Post
    Only 12psi, nice numbers. 3400 right? Only thing I don't like is the dyno jet. Reason is that, the big debate is that a DJet reads 14% higher than a MDyno.
    I've always dyno'd on dynojets and I've found them to be fairly reliable and accurate when set up properly. The most important thing is repeatability and consistency between dyno's, so if you dyno on a dynojet once, do some mods and dyno on a dynojet again, you should be able to get an accurate measurement of any changes. Getting 100% accurate HP reading isn't really the most important thing. The most important thing is being able to read increases in HP for tuning and mods, so as long as it will do that it's fine.

    Originally posted by Azrael View Post
    I'm really damned impressed it didn't start knocking when the afr's went into the 14's. That water injection must have really helped. Hope to hear the results with the better fueling soon.
    I don't find that so strange. I dyno'd my car before at 9psi boost with maxed out stock injectors and my AFR got up to 14.5:1 at redline and I didn't have any detonation. And that was with no intercooler and stock timing. These motors are pretty knock resistant if you are using good fuel.
    '97 Grand Prix GT 3800 (sold)
    '00 Grand Am GT 3400 supercharged
    13.788 @ 103.73 mph, 320whp 300 ft/lbs
    Gotta love boost!

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    • #17
      Originally posted by AaronGTR View Post
      The most important thing is repeatability and consistency between dyno's, so if you dyno on a dynojet once, do some mods and dyno on a dynojet again, you should be able to get an accurate measurement of any changes. Getting 100% accurate HP reading isn't really the most important thing. The most important thing is being able to read increases in HP for tuning and mods, so as long as it will do that it's fine.
      True. What I have found is that people that often went to a Djet and lets say produced 400Whp with a 3000lbs car and a guy that went to a Mdyno and made 350whp in a 3500lbs car, the guy with the 350whp ends up winning the race.
      Lifting my front wheels, one jack at a time.

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      • #18
        Posts discussing water/meth injection have been moved to a new thread: http://60degreev6.com/forum/f108/wat...jection-t44808
        -Brad-
        89 Mustang : Future 60V6 Power
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        Follow the build -> http://www.3x00swap.com/index.php?page=mustang-blog

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