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NW 150 is starting off with a positive reputation.

NW 150 NW 150 is offline

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  1. Fordguy2002
    10-06-2013 12:04 AM - permalink
    Hey I have a 76 f150 with the 390 I have got the flowtech headers in your post how hard was it to put them on will I have to jack the engine up at all
  2. Thesteeleboy
    08-14-2011 11:21 PM - permalink
    Looking at your garage pictures, I noticed your headers have two pipes in front and two behind the motor mount. Can you tell me what brand they are. The picture of the flowtech doesn't look like that.
  3. BoomerTexas70's
    06-22-2011 10:52 AM - permalink
    I have another project that needs to start and believe me i dont want to sell this, I just could use the money. I have posted a for sale in the classifieds if you are interested in the specs/stats and what all goes with the truck.
  4. lasitter
    07-18-2010 01:30 PM - permalink
    Please read messages back to front!!! The stock injectors are good to about 195hp, and making the engine breathe easier, the reduction of parasitic losses, etc., should push effective output well over 200hp.

    If you discover something interesting, keep me in mind.
  5. lasitter
    07-18-2010 01:29 PM - permalink
    Previous message continued: The first big ticket HP mod was a complete exhaust system, custom mandrel bent including downpipes, with single heavy-metal low-flow cat and low restriction muffler, and it's pulling much stronger over 3000.

    I'll soon be getting back HP by minimizing parasitic losses from the fan and WP, and in January I've got a legendary inline-six man doing my headwork, which I expect to yield large HP gains. I'm changing the cam at the same time, and NONE of the resulting HP will come at the expense of fuel economy.

    MPG wise, I'm getting close to 30 now (2.73 rear) @ 55 highway.

    I'm still interested in program changes via flashing, so I am interested in anything you've learned from your research.

    I'm also thinking I'll do something with the ignition, like MSD, indexing plugs, side gapping.
  6. lasitter
    07-18-2010 01:28 PM - permalink
    I have a 96 Std Cab Long box 4.9L SFI/MAF like yours, and I'm spending a lot of time scoping out answers to bumping the performance.
    Needless to say, I think the engine has a lot to offer, and annoys me no end to see people jumping into your thread to tell you that you're stupid for wanting what you want.

    I have gotten significant HP gains and am looking for still more.

    My 4x2 couldn't get power on the ground like your 4x4, so I had a Lockrite installed. Launches like nobody's business now.

    Got rid of the M50D in favor of a ZF which could handle any future power upgrades.

    K&F filter and modest timing bumps were cheap and easy and I absolutely DID see a difference.
  7. cadillacmob
    02-25-2010 11:17 PM - permalink
    is your truck lifted at all ? and is your front bumper shimmed out?
    02-10-2010 11:56 PM - permalink
    backpressure = bad if theres too much of it

    velocity = good

    the two are often confused...thats why 3" pipes are not good, loose the velocity, but the tiny stock ones create backpressure, and so do the ,muffler and cat (s) need a good free flowing setup that will hold the exhaust velocity, good headers and Y-pipe (s) and downpipes are what help the velocity...along with decent size tubing
  9. dgray69
    02-10-2010 02:24 PM - permalink
    hope this one works
  10. dgray69

About Me

  • About NW 150
    Driving and working on my two trucks. (96 F150 4x4 & 75 F100 4x4)
    2 Letter State/Province (use "--" for outside USA/
    Country of Residence
    Current Mileage
    150,000 - 199,999
    Miles per year
    5,000 - 9,999
  • Signature
    Witty73: Thats not something you hear out of a 79 F 350 owner often...."dang, this thing sits too high!"
    Flowmaster Super 10s,
    F100 in the sand,
    F100 in the sand(in cab)


Total Posts
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  • Last Activity: 12-15-2018 02:53 PM
  • Join Date: 06-06-2007
  • Referrals: 0


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