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B20Z w B18C Motor Help!

Discussion in 'Engine Building' started by hit-mo, May 9, 2009.

  1. hit-mo

    hit-mo New Member

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    B20Z Block w B18C Head Help!

    Hi all,

    Im new to this forum, just wanted some advice on a car i may be buying. Its a JDM ITR DC2 with a B20Z block and B18C head (JDM ITR). It has the following mods:

    Head:

    Skunk2 Pro 2 Cams
    Skunk2 Tuner Series Cam gears
    Skunk2 Pro Valves / valve springs / retainers

    Block:
    Golden Eagle Block Guard
    Balanced Pistons, Rods, Crank (oem b20z)
    B18C Girdle
    Thicker Head Gasket
    ITR Oil Pump

    Gearbox:
    Stock ITR S80 box
    Exedy Stage 1 Clutch
    Balanced Flywheel (oem b18c)

    The build up can be seen here: Untitled Document

    It also has a Skunk Pro Intake manifold. With the stock exhaust manifold and intake mapped on CHROME management it made 220bhp at the fly (153.5whp) and 142lbf.ft torque. VTEC engages at 5900rpm and tops out at 8600rpm.

    Before I buy it, I just wanted to know if it was safe to run the engine at such high rpm with the bottom end as it is, or will I need to uprgade the pistons, rod or even sleeve the block? Also what should be the absolute highest rpm I should run it at with the current set up? And what sort of power should I expect to run with a good exhaust system (inc. manifold) and intake?

    Any help would be greatly appreciated, thanks :)
     
    Last edited: May 9, 2009
  2. red91efhatch

    red91efhatch New Member

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    redline for b20z is 6800 max, you can run higher but it will wear out. at the very least shot peen the rods for more strength but aftermarket rods and pistons are best for b20/vtec setups.
     
  3. esi42

    esi42 Member

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