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  1. #1
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    225 Promax Rev limter options.

    My stock/original 1997 2.5 225 promax pulls a 32 ET with 1.75 gears hard to the limiter at 103 MPH every time out.
    If I wanted more speed I'd either have to have this prop pitched up, buy a 34" cleaver or similar or raise my limiter.

    Besides Brucato (which isn't in the budget right now) are there any decent ways to bring the limiter up to 7k or so?
    2003 TUFF 21 (#0.1), 300xs - new ride
    1986 Valero YT, 225 Promax - sold
    1987 Viper, 140 cross flow - sold

  2. #2
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    If I had a "plain jane" ole pm doing that, I wouldn't touch it! Get a bigger prop..............

  3. #3
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    do you still have oil injection? you could delete it and the rev limiter and call it good

  4. #4
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    Oil injection is removed as are the "black boxes" for idle stabilization and timing retarding both for simplicity and reliability. I didn't know you can unplug the limiter... How is that done?
    2003 TUFF 21 (#0.1), 300xs - new ride
    1986 Valero YT, 225 Promax - sold
    1987 Viper, 140 cross flow - sold

  5. #5
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    You cannot unplug the limiter as its built into the ECU's program. You can send it in to the get the limiter raised. Not cheap though.

  6. #6
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    Might want to get a lightweight flywheel if you're raising the limiter.
    2004 Deep Impact 36 Triple 300 Verados
    1998 Donzi 35 ZFC Triple 300 Verados FOR SALE
    1989 24ft Skater, Twin Diamond Marine 280's with Diamond Tuners, 34p Cleavers. A few pieces of JL Audio equipment.- SOLD
    1988 18ft Talon- SOLD

  7. #7
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    Quote Originally Posted by tony97gt View Post
    Might want to get a lightweight flywheel if you're raising the limiter.
    Oh nevermind then - this thing runs to well to monkey with it. Maybe I'll just have the prop tweaked.

    thanks for the info.
    2003 TUFF 21 (#0.1), 300xs - new ride
    1986 Valero YT, 225 Promax - sold
    1987 Viper, 140 cross flow - sold

  8. #8
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    Quote Originally Posted by Fullthrottleguy View Post
    Oh nevermind then - this thing runs to well to monkey with it. Maybe I'll just have the prop tweaked.

    thanks for the info.
    Good for you!

  9. #9
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    Quote Originally Posted by Fullthrottleguy View Post
    Oh nevermind then - this thing runs to well to monkey with it. Maybe I'll just have the prop tweaked.

    thanks for the info.
    Smart move!

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