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  1. #1

    Join Date
    Jul 2007
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    Canandaigua Lake
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    New Grate And Impeller?

    Any idea what kind of WOT mph increase I could expect to an 07 GTX NA if I were to mod the grate, impeller and fill the ride plate holes? Any recommendations as to which to try? I am just a tick behind my buddies Honda turbo at WOT. I know, I probably should have bought the SC


  2. #2
    With a scoop grate you will just see better hookup in chop. By filling in the rideplate holes you will gain about 1mph top end. And touching the prop isn't going to do a thing unless your RPM need adjusting, i.e. if your not turning ideal RPM for a whole assortment of reasons such as problems, riding conditions, or engine mods you added.

  3. #3
    Site Admin Green Hulk's Avatar
    Join Date
    Apr 2005
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    Morgan City, LA
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    Pete, fill those ride plate holes and you should gain 1 mph.

    This is the impeller you want for your ski

    http://www.4-tecperformance.com/inde...roducts_id=502

    this is the tool you will need
    http://www.4-tecperformance.com/inde...roducts_id=307

    There isn't a commercially available air intake for your ski, but im sure you can fab something up to get some cooler fresh air to the engine.

  4. #4
    The ski's have taken a "backseat" to the Corvette DarthAWM's Avatar
    Join Date
    Nov 2007
    Location
    Odessa, TX
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    5,364
    In adittion to what those guys said, I would do a pump wedge before an intake grate(no point in redoing the stock grate, what I hear is that OEM does pretty dang good at flowing in smooth water)

  5. #5
    Quote Originally Posted by DarthAWM View Post
    In adittion to what those guys said, I would do a pump wedge before an intake grate(no point in redoing the stock grate, what I hear is that OEM does pretty dang good at flowing in smooth water)
    Good point! Wedge is good for 1~2mph top end. Drier ride too if you like that.

  6. #6

    Join Date
    Jul 2007
    Location
    Canandaigua Lake
    Posts
    13

    Thanks Guys

    Thanks guys, I see a winter project developing here.

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