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  1. #1
    Pistonwash's Avatar
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    About intake grates:

    There are really only 3 or 4 Aftermarket intake grates you can use on the FZ's. This is the TBM vs. R&D as you can clearly see them side by side. I lost 2.5 mph with the TBM because it is more agressive than the R&D and as you can tell they are designed completely differently.


    This is the first difference, as you can see is the location of the front wing and slightly tell of the steepness of the pitch or angle of the grates from the rear. Plus the R&D is farther forward than the TBM.

    Click image for larger version. 

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    Next is the side view where can see the angle of attack a little bit better..the TBM works very well in the heavy chop. It keeps the nose down at higher speeds but also you lose top-end. Off the holeshot, it really hangs on and loads the pump hard.

    Click image for larger version. 

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    Finally, you can see where the rear wing of the R&D differs from the TBM. The TBM is opened more for water flow and is also more steep in it's aggressiveness.

    Click image for larger version. 

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    After I took this pic I did the normal Tommy Jordan "massage" on the R&D and I probably won't use the TBM unless I race in the Bay with heavy chop. The TBM is well-made but probably needs to be re-engineered with those two screws holding the front wing in place. That is a scary notion to me that my life is in the balance of these tiny screws holding that wing together @ 90mph.


  2. #2
    Just relax and enjoy the ride. XLT Chad's Avatar
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    Good information. Thanks for sharing.

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  4. #3
    mun802's Avatar
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    What's the tommy Jordan massage lol ?

  5. #4
    Pistonwash's Avatar
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    The Tommy Jordan massage...you get a glass of wine and soak the grate in it before you take a file and get all the rough edges off! Lol! But, really...you just file down the casting imperfections and "airplane" the front sharp edges from incoming water. It helps with the flow. Make sure all mounting surfaces are true and flat also.

  6. #5
    mun802's Avatar
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    Thanks for the help pistonwash, that's this weekends job then

  7. #6
    Pistonwash's Avatar
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    Quote Originally Posted by mun802 View Post
    Thanks for the help pistonwash, that's this weekends job then
    Be careful not remove a lot of material...don't get crazy with it. Just round off the front edges and file down imperfections that you see protruding from around the grate. Make sure the mounting bolt holes are true and flat. This will help with your all-around performance of the intake grate.

  8. #7
    mun802's Avatar
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    Quote Originally Posted by Pistonwash View Post
    Quote Originally Posted by mun802 View Post
    Thanks for the help pistonwash, that's this weekends job then
    Be careful not remove a lot of material...don't get crazy with it. Just round off the front edges and file down imperfections that you see protruding from around the grate. Make sure the mounting bolt holes are true and flat. This will help with your all-around performance of the intake grate.
    Thanks for the tips

  9. #8
    Pistonwash's Avatar
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    Quote Originally Posted by mun802 View Post
    Quote Originally Posted by Pistonwash View Post
    Quote Originally Posted by mun802 View Post
    Thanks for the help pistonwash, that's this weekends job then
    Be careful not remove a lot of material...don't get crazy with it. Just round off the front edges and file down imperfections that you see protruding from around the grate. Make sure the mounting bolt holes are true and flat. This will help with your all-around performance of the intake grate.
    Thanks for the tips
    Thats what this place is all about! You will pick up a little speed and better hook-up when you do this.

  10. #9
    305coco's Avatar
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    Quote Originally Posted by Pistonwash View Post
    Quote Originally Posted by mun802 View Post
    Thanks for the help pistonwash, that's this weekends job then
    Be careful not remove a lot of material...don't get crazy with it. Just round off the front edges and file down imperfections that you see protruding from around the grate. Make sure the mounting bolt holes are true and flat. This will help with your all-around performance of the intake grate.

    +1 like mike said only "round off" the leading edges of the grate, and for all you that like to tinker out there,



    DO NOT
    sharpen the leading edges of the grate, you will overstuff the hell out of the pump!!

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