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New CAT engines

Discussion in 'Engines' started by German Yachting, Jun 23, 2020.

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  1. Capt Ralph, Feb 25, 2021
    #21
    Capt Ralph

    Capt Ralph Senior Member

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    Taller pistons and ported heads.
    I wonder what the final compression ratio is loaded at high hp?
    It has to be a scary number.
    Remember, new pistons AND new rods, crankshaft and block castings around the crank.

    Either a better engine or tighter grenade.
  2. Capt J, Feb 25, 2021
    #22
    Capt J

    Capt J Senior Member

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    Sounds like the old chevy days with forged cranks and 4 bolt mains on higher hp motors. LOL...... I haven't heard of any catastrophic failures on the 1900 hp C32s. So perhaps with the beefing up they'll be fine. Seems like a BIG jump in HP.....1900 to 2400hp from a block origionally designed for 1600hp.
  3. Capt Ralph, Feb 25, 2021
    #23
    Capt Ralph

    Capt Ralph Senior Member

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    Think of what you call the original 1600hp engine.
    Similar to many family trees of Cat's other engines, they were originally a tractor or off road equipment block usually making a few hundred reliable (life time) horse power.
    The reliable torque and operating cost was desirable in these conditions.

    Ah, But a marine engine. Well that 's take that 500HP engine out of that bulldozer and bolt on lots and lots of expensive parts that will make a boat go fast.
    1000, 1200, 1400, 1600 HP after a few years.

    So, That's a GREAT BIG jump in HP to get to 1552 HP originally designed for 4-500 hp.
    Then the CAD/CAM to 2400 hp (block cast changes)
  4. Slimshady, Feb 25, 2021
    #24
    Slimshady

    Slimshady Senior Member

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    Agree with the thoughts but hp per litre displacement match their competitors
    ChiTown likes this.
  5. Punisherzx12r, Feb 25, 2021
    #25
    Punisherzx12r

    Punisherzx12r Member

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    C15's have come in trucks with 600 HP for decades...turned up to 800 hp and still run a million miles
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