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  1. #1
    camar0's Avatar
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    TApping intercooler blockoff plate

    I have an older blockoff plate that has no NPT fitting in it....

    is it ok to just drill and tap a hole in it for boost gauge?

    if so, what is the drill hole and npt needed?


  2. #2
    Yellowsierra's Avatar
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    Quote Originally Posted by camar0 View Post
    I have an older blockoff plate that has no NPT fitting in it....

    is it ok to just drill and tap a hole in it for boost gauge?

    if so, what is the drill hole and npt needed?

    Im not sure about the drill bit needed but it should say on the package for the tap. The Tap is 1/8 NPT.

    Justin

  3. #3
    fabrication guru rapidacceleration's Avatar
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    Q drill .332"
    and a 1/8-27NPT tap

  4. #4
    Wakeskate or Die!!! RobbieMWD's Avatar
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    Quote Originally Posted by rapidacceleration View Post
    Q drill .332"
    and a 1/8-27NPT tap

    What size standard drill bit would that be?

  5. #5
    DaveC's Avatar
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  6. #6
    camar0's Avatar
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    do i need to use locktite or teflon tape when putting in the sending unit to blockoff plate?

  7. #7
    fabrication guru rapidacceleration's Avatar
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    definatly teflon tape.

  8. #8
    West Texas RXP skoepp's Avatar
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    use some teflon tape. Also check out the instructions as says to not mount sending unit direct to manifold.
    I ran mine like that for a while with no problem but now i got both my sending units connected to about 8 inch of hose off block off. You can zip tie the unit to the steering cable and it will be nice and out of the way.

    I am assuming they say that as to maybe any heat from manifold may damage it, but not sure.

  9. #9
    West Texas RXP skoepp's Avatar
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    Here is the only pic i could find. You can see sending unit routed to block off in bottom right corner.
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  10. #10
    The ski's have taken a "backseat" to the Corvette DarthAWM's Avatar
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    Quote Originally Posted by camar0 View Post
    do i need to use locktite or teflon tape when putting in the sending unit to blockoff plate?
    Man you gotta use teflon tape on NPT threads, its state law, look it up

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