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Thread: SC 1500HD Tuning

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  1. #1
    Join Date
    Sep 2003
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    Cedar Park, TX
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    Truck feels much smoother and pulls alot better . The shift points really helped also. I'll run it with the Gtech tomorrow if its not raining and post up the results. It was 15.1 - 15.2 before....

    Mike
    '02 1500HD, 6.0L, magnacharger, 2000stall, custom magnaflow with electric cutout, E-fans, Nelson custom tune, Auburn LSD.
    '79 L82 vette, Summit 355, Dart Pro1 heads, Comp 274 cam, Holley TBI, Built TH350 with 2500stall
    '93 Blazer, full size 2dr 4x4, new project.....

  2. #2
    Join Date
    Mar 2003
    Location
    San Antonio, TX
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    Badass Mike!!!

    I'm glad you like it, just from the shift points I bet you gained a tenth.

    That 4L80E really came out nice, those shifts are awesome, it's not a jarring feeling guys, it's more of a shift and launch feeling.

    We'll have to get together again, along with some other truck members and head out to the track. I think you're only about 30mins away.

    Keep us updated and thanks for posting,

    btw, You're the only one who's bought and installed the LS1Truck.com sticker, hmmmm, lol.

    later,

    allen

  3. #3
    Join Date
    Apr 2003
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    Mansfield, Texas, USA
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    Originally posted by L82gofast@Oct 31 2003, 03:56 PM
    Truck feels much smoother and pulls alot better . The shift points really helped also. I'll run it with the Gtech tomorrow if its not raining and post up the results. It was 15.1 - 15.2 before....

    Mike
    In the words of Eric Cartman...."sweeeeet". What did ya do with that evil called TqMgt? What are your shift points up to now?
    The superior man is modest in his speech, but exceeds in his actions. - Confucius

    "He who asks of life nothing but the improvement of his own nature, is less liable than anyone else to miss and waste life."- Henri Frederic Amiel

    '01 Chev Z71 LT - '85 BMW 745i TURBO - '88 BMW 750iL - '88 Ford F150 XLT Lariat - '79 MB 240D - '79 MB 280S Euro
    '80 MB 380SE-5.0 Euro - '85 MB 300SD - '87 MB 300SDL - 1990 MB 300SEL - '91 MB 300SE - '91 MB 560SEL

    Let's face it, the red hair... makes 'em wet.


  4. #4
    Join Date
    Mar 2003
    Location
    San Antonio, TX
    Posts
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    We took TM out and it definitely made a difference. He said it used to feel like it was bucking during the shifts.
    The shift points are at

    1st = 5700rpms
    2nd = 5600rpms
    3rd = 5400rpms , but I'm not sure if it's safe taking that big ass fast truck that fast, lol, if so, it's definitely moving.

    Set the speed limiter at 200mph, he said he was going to try and hit on the way home, heheheh

    For those with chargers and superchips, there's a lot more in there.


    later,

    allen

  5. #5
    Join Date
    Mar 2003
    Location
    San Marcos Texas
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    4,393
    Originally posted by farmtruc@Oct 31 2003, 03:37 PM
    Badass Mike!!!

    I'm glad you like it, just from the shift points I bet you gained a tenth.

    That 4L80E really came out nice, those shifts are awesome, it's not a jarring feeling guys, it's more of a shift and launch feeling.

    We'll have to get together again, along with some other truck members and head out to the track. I think you're only about 30mins away.

    Keep us updated and thanks for posting,

    btw, You're the only one who's bought and installed the LS1Truck.com sticker, hmmmm, lol.

    later,

    allen
    Sticker should be good for 50 HP at least!
    2006 Superior Blue Trailblazer SS AWD, Stock as a rock

    Sold: 2002 GMC Sportside Denali front end with a 2002 LS1, FLT level 5, Yank 2600, Trick Turbo, T76, Nelson intercooler, 60LB injectors, Warbro fuel pump, Eaton locker, Magnaflow, 3.42, Nelson Performance Tuning (speed density).

    Sold: 1981 GMC LB RC 1500 2002 4.8L 4L60E 12 bolt 3.73 Richmond Lock Right AC PS Nelson Performance tuning

  6. #6
    Join Date
    Mar 2003
    Location
    San Antonio, TX
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    Originally posted by GMCwantsLS1@Oct 31 2003, 04:02 PM
    Sticker should be good for 50 HP at least!
    Ya, and they're only 5$, that's 1$ per 10 horsepower.

    Stickers

  7. #7
    Join Date
    Sep 2003
    Location
    Cedar Park, TX
    Posts
    193
    Holy smoke!!! you will love this Allen

    On the way home from work I was dragging a 750iL and doing pretty good and pop, massive exhaust leak!!

    Well I thought for sure my welding job on the O2 bung cracked or something since I am less than confident on my welding skills.

    So I babied it home, which really sucked cause there was Hemi's and ricers all over the place. It was redneck truck all the way home

    Turns out the EGR tube busted off at the manifold connection!

    So is it kick ass or what that we deleted the EGR tests

    I will weld up a block off plate or something to fix it. Glad it was something simple.

    That must have been that noise we sort of noticed when we were almost finished tuning.

    Too much back pressure, maybe I need some straight pipes. LOL

    Mike
    '02 1500HD, 6.0L, magnacharger, 2000stall, custom magnaflow with electric cutout, E-fans, Nelson custom tune, Auburn LSD.
    '79 L82 vette, Summit 355, Dart Pro1 heads, Comp 274 cam, Holley TBI, Built TH350 with 2500stall
    '93 Blazer, full size 2dr 4x4, new project.....

  8. #8
    Join Date
    Mar 2003
    Location
    San Antonio, TX
    Posts
    11,038
    You scared me there for a sec, lol, I had to skim thru the post real quick and find out what the problem was and then go back and read the entire post, hahaha, .

    That's definitely wierd it blew off, but now you got me thinking, I'll do some research and find out why. I didn't think there was that much pressure build up, lol.

    So, badass on the racing, I'm sure you surprise the hell out of a lot of ppl with that big fast truck, it moves pretty damn good, and in style.

    Ya, good thing on the egr, haha, maybe I tuned it so that it would blow off, lol, jk,

    keep me updated, i hope everything goes well removing it.

    allen

  9. #9
    Join Date
    Sep 2003
    Location
    Cedar Park, TX
    Posts
    193
    It was a blast running back to Austin! Truck moves nice. Throttle response is noticably better and the downshift when I puch it is kick ass!! Did'nt hit the 200mph limiter though But it gets over 100mph real quick

    The tube broke right at the flange connection on the passenger manifold. It must have been cracked before but did not have a noticable leak.

    It will be easy to block off this morning. I'll call magnacharger on Mon and find out how much they want for a new tube. Maybe I'll do just fine without it.
    I still think it would be better not to have that exhaust running into the blower....
    '02 1500HD, 6.0L, magnacharger, 2000stall, custom magnaflow with electric cutout, E-fans, Nelson custom tune, Auburn LSD.
    '79 L82 vette, Summit 355, Dart Pro1 heads, Comp 274 cam, Holley TBI, Built TH350 with 2500stall
    '93 Blazer, full size 2dr 4x4, new project.....

  10. #10
    Join Date
    Apr 2003
    Location
    Mansfield, Texas, USA
    Posts
    2,462
    Originally posted by L82gofast@Oct 31 2003, 07:50 PM
    On the way home from work I was dragging a 750iL and doing pretty good and pop, massive exhaust leak!!
    LOL, it's a natural blowoff valve!

    Psst...get you some slicks and take it to the track.
    The superior man is modest in his speech, but exceeds in his actions. - Confucius

    "He who asks of life nothing but the improvement of his own nature, is less liable than anyone else to miss and waste life."- Henri Frederic Amiel

    '01 Chev Z71 LT - '85 BMW 745i TURBO - '88 BMW 750iL - '88 Ford F150 XLT Lariat - '79 MB 240D - '79 MB 280S Euro
    '80 MB 380SE-5.0 Euro - '85 MB 300SD - '87 MB 300SDL - 1990 MB 300SEL - '91 MB 300SE - '91 MB 560SEL

    Let's face it, the red hair... makes 'em wet.


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