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  1. #1
    kensmith's Avatar
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    How good are stock internals 08 rxt 18 lbs boost

    I am going to tear down my motor are the stock rods good? I guessing cast pistons?

  2. #2
    SplishSplash's Avatar
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    If your guessing, don't. They should be forged on the intercooled engines.
    If your replacing them, Forged is the way to go. Don't know about the rods.

    What other mods are you planning to do to handle 18lbs?

  3. #3
    kensmith's Avatar
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    Quote Originally Posted by SplishSplash View Post
    If your guessing, don't. They should be forged on the intercooled engines.
    If your replacing them, Forged is the way to go. Don't know about the rods.

    What other mods are you planning to do to handle 18lbs?
    The mods have already been done.

    4" kanaflex intake
    Engine Tech 68-140 supercharger
    Aqua Sport exhaust spacer
    Riva rear exhaust
    Riva thermostat
    Riva catch can
    Riva Gen3 intercooler
    Riva valve train upgrade retainers/springs RS19050-VTU
    HKS blow off valve
    Riva ARP flywheel bolts
    Deka #80 injectors
    Riva 300 camshaft
    MaptunerX
    PLX wideband air/fuel sensor module
    Riva RRFPR RS12050-RRFPR-08
    Riva intake manifold girdle RS12050-IMG


    Riva pump wedge
    Riva intake grate
    Riva wear ring
    Solas 13/17r
    Riva OPAS delete



  4. #4
    kensmith's Avatar
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    Are the stock 08 RXT pistons, rods valves good or do the need to be replaced ? Any options on this ?

  5. #5
    Got Boost? psycho rxp's Avatar
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    Quote Originally Posted by kensmith View Post
    Are the stock 08 RXT pistons, rods valves good or do the need to be replaced ? Any options on this ?
    The stock pistons are good to a point, but for high rpm high boost applications, I usually open the bore to give .005 piston to wall clearance. Stock piston Clarence is pretty tight.

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