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Thread: radix pulley issues

  1. #1
    sprayed99 Guest

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    I installed a radix with 3.4 pulley. made right @ 6psi. wanted alittle bit more so went with a 3.2 pulley now its making 10psi. I'm pulling it back off because that is way to much boost on a stock bottom end 5.3L. what pulley should I use to get 7-7.5 psi?

  2. #2
    Join Date
    Sep 2006
    Location
    Coon Rapids, MN
    Posts
    1,219
    Did you mic it

    04 Grand Prix GTP
    03 Z71 wanting a Turbo ,Stall, and Tune BAD
    THE SURGEON GENERAL SAYS NOTHING ABOUT SMOKIN A FORD

  3. #3
    sprayed99 Guest
    I did now and its a freaking 2.9 pulley. Note to self don't trust someone selling a radix pulley that doesn't even have a radix. New one on the way

  4. #4
    Join Date
    Jan 2007
    Posts
    3
    <div class='quotetop'>QUOTE(sprayed99 &#064; Feb 26 2007, 08&#58;48 AM) [snapback]84537[/snapback]</div>
    I installed a radix with 3.4 pulley. made right @ 6psi. wanted alittle bit more so went with a 3.2 pulley now its making 10psi. I&#39;m pulling it back off because that is way to much boost on a stock bottom end 5.3L. what pulley should I use to get 7-7.5 psi?
    [/b]
    Hmmm... I&#39;ve been running a Radix @ 10 psi boost on my truck for over a year now (about 25000 miles) and haven&#39;t had any issues. In fact I just tore the engine down to replace a faulty lifter and add a LPE GT2-3 cam and 3000 stall and the engine looked like new inside. No signs of detonation or wear at all.

  5. #5
    Join Date
    Jun 2004
    Location
    george west texas
    Posts
    3,694
    im running a 3.1 at 8#&#39;s....thats a good safe number
    '13 silverado LT...stock

    '11 lt 4x4 z71..tvs1900

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

  6. #6
    Join Date
    Nov 2005
    Location
    San Jose CA.
    Posts
    177
    I run a 3.2" and make ~9.5lbs peak boost on stock L33 low end. &#39;&#39;&#39;knocks on wood&#39;&#39;&#39;&#39; Tuning has a big part to play.
    626/762 2005 SIERRA 11.34@119.81
    My other ride is a '91 Electraglide custom.

  7. #7
    sprayed99 Guest
    I have a 3.1 on the way. I also have allen sending me a meth kit. should have some numbers soon.

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