Thread: OX66vsHPDI

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  1. 05-11-2006, 10:13 AM #1
    kensafishin
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    OX66vsHPDI

    For those that have had or have both of these motors give your opinions as to which is the more reliable motor.
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  2. bcbasser
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    #2 05-11-2006, 10:21 AM

    Re: OX66vsHPDI (kensafishin)

    The ox66 is/was a bullet proof motor...very reliable. I think the new HPDI is better than previous generations...Your fuel economy (HPDI) will be much better than that of the ox66. I went with the last year of the ox66 because I think it has some more intestinal fortitude than the HPDI....but that is just my 2 cents.
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  3. Scott
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    #3 05-14-2006, 06:55 PM

    Re: OX66vsHPDI (kensafishin)

    had problems with my 2004 225 0x66 and am currently having an 2006 225 HPDI rigged on my boat - should be done in a week or so. I have high hopes!




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  4. LeeinAlabama
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    #4 05-16-2006, 07:05 AM

    Re: OX66vsHPDI (kensafishin)

    I have had both. The EFI is great. I bought the HPDI and I love it. Now about the milage, the HPDI gets better milage 4500rpms down. Run it at 5800 plus and it drinks like the rest of 'em. I do like the 1.75 gears in my HPDI better. Can't go wrong w/ either. (IT TAKES GAS TO MAKE H.P.)
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  5. kensafishin
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    #5 05-16-2006, 08:33 AM

    Re: OX66vsHPDI (LeeinAlabama)

    I have 99' 225hp ox66 with 100-150 hours nothing wrong with it.I know I'll replace it later and was looking at motors and found 04'250hp 0x66 didn't know if its worth getting it or HPDI.
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  6. JeremyL
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    #6 05-17-2006, 05:55 AM

    Re: OX66vsHPDI (kensafishin)

    The HPDI is much better on fuel!! In my ox66 running a gunning in a Tourny I would burn at least one tank of fuel, with the HPDI I burned 1/2 of one tank, I think the savings in gas will ofset the price difference!!
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  7. 55excl
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    #7 05-20-2006, 05:01 PM

    Re: OX66vsHPDI (kensafishin)

    My friend has 1999 OX66 beats the hell out it. He just replaces water pump and plugs runs great. Mine is 2004 I think this motor is race proven thats why I bought mine. I know its outdated HPDI or 4 stroke is modern but Iam old fashion and dont want any problems.
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  8. KB337
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    #8 05-20-2006, 05:57 PM

    Re: OX66vsHPDI (55excl)

    All the crap I put my '03 ox66 225 through and she is still rollin'. It is a very reliable engine.


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  9. 55excl
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    #9 05-21-2006, 03:19 PM

    Re: OX66vsHPDI (LeeinAlabama)

    Scott, what problems? I have 2004 200hp little concerned? Rico
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  10. Scott
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    #10 05-23-2006, 02:45 PM

    Re: OX66vsHPDI (55excl)

    <TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 55excl &raquo;</TD></TR><TR><TD CLASS="quote">Scott, what problems? I have 2004 200hp little concerned? Rico</TD></TR></TABLE>

    I had excessive smoke and intermittant vibration - no pattern - in and out for service several times - finally upgraded to the HPDI




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  11. cottonmouth
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    #11 05-23-2006, 03:30 PM

    Re: OX66vsHPDI (kensafishin)

    I have ox66 that is a 2001 that is ONE HELL OF A MOTOR!!!! no problems and plenty of speed on 520 vs. I would buy another in a heartbeat.
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