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Thread: SD Tune on the 408

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  1. #1
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    how big of a throttle body are you running? 4" tube should easily support a 102mm TB since they're both the same size, right?
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  2. #2
    im running the volant intake, whatever size that is on my 90mm tb
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  3. #3
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    think about it this way...

    take a 1" diameter piece of house about 1" long and blow through it, very easy right?

    now take another 1" diameter hose and make it about 3' long and throw in a bend or two and blow through it again, not so easy huh?
    01 Silverado

  4. #4
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    4" is a restriction on a healthy 4xx motor. just cause the TB is one size doenst mean the air track to it is of equal flowing. Like anything else your breathing your a straw, the biggest it is the better its going to flow. bends and length effect flow seriously
    Quote Originally Posted by RedHeartbeat View Post
    how big of a throttle body are you running? 4" tube should easily support a 102mm TB since they're both the same size, right?
    dual 4" running to each side of truck and behind the headlights or down under neath the bumper with scoops to get fresh air
    2002 Lightning - GT headed 5.5Litre w/ Twin 7665s
    2002 Silverado - 427Lsx w/ Twin gt4202s
    2010 Silverado crewcab Z71 - 5.3litre w/ procharger
    2000 Wrangler - 5.3litre with some stance
    2014 Xsport- 3.5 Eco boost
    412 Motorsports

    it ain't that I'm too big to listen to the rumors, It's just that I'm too damn big to pay attention to 'em..That's the difference

  5. #5
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    couple things...

    We're in IL, hot summer, cold winter...won't that prose a problem to a SD tune?

    And as far as intakes...without MAF...couldn't he just stick a vette style filter on the TB and call it a day? (ignoring underhood temps...don't think those will be an issue)
    blown transmissions are about as useful as 97% of the guys on this forum

  6. #6
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    SD tune still references the IAT. Also the MAP sensor picks up the differences in temperature through the density of the air.
    2006 Silverado
    Little Black Bitch

  7. #7
    Join Date
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    Quote Originally Posted by oleshifty View Post
    couple things...

    We're in IL, hot summer, cold winter...won't that prose a problem to a SD tune?

    And as far as intakes...without MAF...couldn't he just stick a vette style filter on the TB and call it a day? (ignoring underhood temps...don't think those will be an issue)
    The myth of sd having issues with weather gets old. If ppl didn't post so much bulls1t then others would understand more

    Filter off tb is hot air
    2002 Lightning - GT headed 5.5Litre w/ Twin 7665s
    2002 Silverado - 427Lsx w/ Twin gt4202s
    2010 Silverado crewcab Z71 - 5.3litre w/ procharger
    2000 Wrangler - 5.3litre with some stance
    2014 Xsport- 3.5 Eco boost
    412 Motorsports

    it ain't that I'm too big to listen to the rumors, It's just that I'm too damn big to pay attention to 'em..That's the difference

  8. #8
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    May 2009
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    Quote Originally Posted by Quik View Post
    The myth of sd having issues with weather gets old. If ppl didn't post so much bulls1t then others would understand more

    Filter off tb is hot air
    Just bringing up things I've heard...figured the myths would get worked out here...and like I said...underhood temps shouldn't be a problem for him...
    blown transmissions are about as useful as 97% of the guys on this forum

  9. #9
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    you still have air coming off rad which is warm air
    Quote Originally Posted by oleshifty View Post
    Just bringing up things I've heard...figured the myths would get worked out here...and like I said...underhood temps shouldn't be a problem for him...
    2002 Lightning - GT headed 5.5Litre w/ Twin 7665s
    2002 Silverado - 427Lsx w/ Twin gt4202s
    2010 Silverado crewcab Z71 - 5.3litre w/ procharger
    2000 Wrangler - 5.3litre with some stance
    2014 Xsport- 3.5 Eco boost
    412 Motorsports

    it ain't that I'm too big to listen to the rumors, It's just that I'm too damn big to pay attention to 'em..That's the difference

  10. #10
    Join Date
    Jan 2008
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    8,031
    no wonder if i should get a SD tune?or 6.0 aint big enough?

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