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Thread: Update, new pass TT Sierra

  1. #1
    Join Date
    Mar 2003
    Location
    San Antonio, TX
    Posts
    11,117

    Update, new pass TT Sierra

    The guys and I headed out to Sar with bud8fan, the owner.
    First and only pass tonight.

    Truck has a small miss when tbrakin at 3000rpms.

    Terrible launch but good mph and acceleration. Check this out.

    1.8355 sixty
    4.4074 330ft
    6.485 1/8 et
    118.11 1/8 mph

    Here's where the potnetial shows.
    Only a 9.77 et , but 150.8 mph

    Truck took off like a rocket after the eighth.
    That's over 32mph gain after eighth. Just comparing to others and looking good so far.
    We will get it lined out.
    It tbraked to 14psi at the shop with no two step but got progressively worse as we tried diagnosing the issue. Maybe a temperamental coil, ray will find.

    Looking forward to headin back out and entering that 8sec zone.

    Btw only change were the heads. Still 17psi and 18psi peak.
    Damn truck is movin!

  2. #2
    Join Date
    Nov 2007
    Location
    Pittsburgh, PA
    Posts
    6,868
    That's some good mph

  3. #3
    Join Date
    Mar 2003
    Location
    San Antonio, TX
    Posts
    11,117
    Ya, truck feels great.

    We'll get the issue fixed, fine tune, and turn up the pressure a little bit; no more than 20-22psi tho. We wanna keep the heads one for a while.

  4. #4
    Join Date
    Nov 2007
    Location
    Pittsburgh, PA
    Posts
    6,868
    That truck still 3500lbs

  5. #5
    Join Date
    Mar 2003
    Location
    San Antonio, TX
    Posts
    11,117
    ya, 3580

    gonna try and do some weight reduction.
    front bumper
    front horns/frame
    has an extra front crossmember; from when it was a bagged truck
    has a thick rear bumper xmember/bagged
    misc mounts/from being bagged

    be nice to get another 150lbs off of it.

  6. #6
    Join Date
    Nov 2007
    Location
    Pittsburgh, PA
    Posts
    6,868
    FYI.....I took my bumper off, frame horns, that gay factory triangle thing for the skid plate and weighed them. That was 75lbs all together

    I now have a SS cover bolted to grill and fenders

  7. #7
    Join Date
    Mar 2003
    Location
    San Antonio, TX
    Posts
    11,117
    Sounds like the route we'll be taking.

    as is, i know it has what we want in it.
    after that, it'll be a fun game trying to see how far we can take this truck using power : weight

  8. #8
    Join Date
    Nov 2007
    Location
    Pittsburgh, PA
    Posts
    6,868
    Look at my update for how to mount bumper cover

    I needed horns gone for my new intercooler as its 28" wide without end tanks.

  9. #9
    Join Date
    Jun 2004
    Location
    george west texas
    Posts
    3,718
    this thing was like it was shot out of a cannon at 1/2 track....started getting a lil sideways
    '13 silverado LT...stock

    '11 lt 4x4 z71..tvs1900

    '01 gmc twins 6.0 jakes 400 ladder bars w/ coilovers tuned by nelson performance

  10. #10
    Join Date
    Nov 2007
    Location
    Pittsburgh, PA
    Posts
    6,868
    Curious as I need a set if snails for my ford.

    How much tied up in turbos

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