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Thread: 4.8 track time

  1. #1
    Join Date
    Oct 2011
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    San Antonio TX
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    4.8 track time

    I put a TSP 220 581/581 112 last week, had it tuned by Nelson Perf thursday and took it to the track friday and ran a 15.18 but dont remember trap speed. Ill post a pic of the timeslip tommorrow. Im happy with it but still waiting to put the gears in. Maybe then ill break into the 14s. The turbo CCSB still ran a best of 15.2 but then again havent done anything else to it. It will also be getting gears pretty soon.


    4.8, TSP 220, 6L90 swap, 3400 Stall, 4.10s w/30" drag radial and T76 @ 16lbs.
    Best ET 11.54@114 w 1.52 60ft
    Raceweight 4905 lbs.

  2. #2
    Join Date
    Jul 2008
    Location
    Mesa, AZ
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    Not too bad considering its just a 4.8.

    What are all the mods on the CC? 15.2 with a turbo just doesnt sound right.
    T-RAV
    99 GMC | 5.3 | Skinny White Guy Tuned

  3. #3
    Join Date
    Oct 2011
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    San Antonio TX
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    Quote Originally Posted by bangbangskeetskeet View Post
    Not too bad considering its just a 4.8.

    What are all the mods on the CC? 15.2 with a turbo just doesnt sound right.
    The CCs a 2010 5.3 6l80 with 3.08s g80 on 275/55/20. We put a MP T70 turbo on it last year, non intercooled it ran a best of 14.8. We intercooled it and our current best is 15.2.


    4.8, TSP 220, 6L90 swap, 3400 Stall, 4.10s w/30" drag radial and T76 @ 16lbs.
    Best ET 11.54@114 w 1.52 60ft
    Raceweight 4905 lbs.

  4. #4
    Join Date
    Mar 2003
    Location
    San Antonio, TX
    Posts
    11,117
    Get some gears in that regcab. I think second gear went past 100mph lol.
    Needs some 4.10's min! And a big stall converter is u can sacrifice a little fuel mileage.

  5. #5
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    Oct 2011
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    San Antonio TX
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    Hopefully this weekend, 4.10s and a locker are going in


    4.8, TSP 220, 6L90 swap, 3400 Stall, 4.10s w/30" drag radial and T76 @ 16lbs.
    Best ET 11.54@114 w 1.52 60ft
    Raceweight 4905 lbs.

  6. #6
    Join Date
    Aug 2004
    Location
    Magnolia, TX
    Posts
    3,273
    I ran a 14.5 with 4.10 and an open diff. No cam!

  7. #7
    Join Date
    Oct 2011
    Location
    San Antonio TX
    Posts
    1,184
    Nice. 4.8 or 5.3


    4.8, TSP 220, 6L90 swap, 3400 Stall, 4.10s w/30" drag radial and T76 @ 16lbs.
    Best ET 11.54@114 w 1.52 60ft
    Raceweight 4905 lbs.

  8. #8
    Join Date
    Aug 2004
    Location
    Magnolia, TX
    Posts
    3,273
    Quote Originally Posted by RS/SS 4.8 View Post
    Nice. 4.8 or 5.3
    4.8, check the link in my sig.

  9. #9
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    Oct 2011
    Location
    San Antonio TX
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    All that with just a gear swap! Man i should drop a good amount of time on mine then. Heres to hoping for a faster time.


    4.8, TSP 220, 6L90 swap, 3400 Stall, 4.10s w/30" drag radial and T76 @ 16lbs.
    Best ET 11.54@114 w 1.52 60ft
    Raceweight 4905 lbs.

  10. #10
    Join Date
    Feb 2012
    Location
    Dallas
    Posts
    238
    wait turbo 5.3l cc in the 15s?

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