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Thread: wanna go boosted

  1. #11
    Join Date
    Feb 2010
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    142
    well im shooting for at least 500 and was thinking 10-12 pounds. whats the life spand on a 12-15 pound motor and no its not a dd

    Hand p&p heads, 219-227 .607 .613, pacesetter, tbss intake, 92mm t-body, cai, e-fans, 14 bolt, 4.56, true trac, pi 2800, 33's, 4l80e built by me
    In the makin
    Boost.

  2. #12
    Join Date
    Nov 2007
    Location
    Pittsburgh, PA
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    3,581
    dont get to caught up in a PSI number as that means nothing. my old 4.8 on 9 psi did over 500 rwhp without breaking a sweat.

    if you have a power goal in mind then just do what it takes to get that number, it may be 6 psi or 15 depending on the tuneup and parts chosen
    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

  3. #13
    Join Date
    Apr 2008
    Location
    Birmingham, AL
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    Quote Originally Posted by Quik View Post
    dont get to caught up in a PSI number as that means nothing. my old 4.8 on 9 psi did over 500 rwhp without breaking a sweat.

    if you have a power goal in mind then just do what it takes to get that number, it may be 6 psi or 15 depending on the tuneup and parts chosen
    very true!!! a well setup combo will make alot more power at 5psi than a junky setup will at 15... boost doesnt make power, air flow makes power
    01 Silverado

  4. #14
    Join Date
    Feb 2010
    Posts
    142
    5.3 with p&p heads and cam to match 219-227 .607-.613, tbss intake, heads have 30 thousands shaved off, is what im running now and am planning to boost, im told that the cam and the shaved heads arnt good for boost ? the origional plans had nothing to do with fi so i guess its expected that it wont be the perfect combination for boost on the first go around

    Hand p&p heads, 219-227 .607 .613, pacesetter, tbss intake, 92mm t-body, cai, e-fans, 14 bolt, 4.56, true trac, pi 2800, 33's, 4l80e built by me
    In the makin
    Boost.

  5. #15
    Join Date
    Mar 2007
    Location
    Newark, Delaware
    Posts
    931
    It's obviously not the perfect combination for boost, but it'll work. Your compression ratio is probably around 10:1(assuming you're running an LM7) and that is about the same as the L33 HO 5.3's that many people have had great success boosting.
    Big slow mud truck with a TUNE!!!!!!

  6. #16
    Join Date
    Dec 2008
    Location
    Sherman, Texas
    Posts
    183
    Pick up the new Hot Rod magazine for a read, they had a junkyard stock bottom end 4.8L with heads, cam, intake, and twin turbo's lay down 1200hp at 26 psi and held it fine

    02 Fully forged Iron Ls1 233/239 595/603 112lsa,
    milled, ported& polished heads,
    K&N CAI, shorty headers,
    off road x-pipe, Pypes M-80s dumped,
    TCI 3600 stall ,TransGo shift kit,
    True Trac w/3:73s, 4/6 drop,
    and a Fast LSXRT 102

  7. #17
    Join Date
    Jan 2008
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    1,550
    Quote Originally Posted by Razgriz1 View Post
    Pick up the new Hot Rod magazine for a read, they had a junkyard stock bottom end 4.8L with heads, cam, intake, and twin turbo's lay down 1200hp at 26 psi and held it fine
    That's probably my favorite article I've read. That made my mind up on doing a turbo on my truck. Now just to save up and piece it together. To the OP, you can always get a set of 317's off someone for pretty cheap and sell your heads. That would drop your cr a good bit. And really if you want you can get a ls6 cam for cheap too.

    04 RCSB 5.3, Homemade 80mm FM, TU1, TH400

  8. #18
    Join Date
    Aug 2009
    Location
    venice, florida
    Posts
    231
    ive been reading alot about 5.3's w/317's- will net you a 8.5-1/8.6-1 cr, and these guys are turning out easy 600 to 700hp. look up 5.3 turbo van, its a awd chevy express- now one of my favs! and another one was synergy motorsports also in a truck, granted it was a twin setup.
    5.3 2wd upgrades: Nelson tune, stainless lt's, magnaflow, e-fans, msd's, cai.

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