northstar engine
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Northstar Engines and System Technical Discussion Discussion, northstar engine in Cadillac Engine Technical Discussion; Does anyone know where I can find pictures or schematics of the NS complete with hoses. Tryn to learn the ...
  1. #1
    ej2000n's Avatar
    ej2000n is offline Cadillac Owners Fanatic
    Automobile(s): 2007 STS
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    northstar engine

    Does anyone know where I can find pictures or schematics of the NS complete with hoses. Tryn to learn the engine and as you know there is limited view with the hood up. don't have the cash to for a FS manual right now.

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  3. #2
    irebroff's Avatar
    irebroff is offline Cadillac Owners Member
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    Re: northstar engine


  4. #3
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: northstar engine

    It was interesting to note that the new VVT Northstar has returned to premium fuel recommendation.

  5. #4
    mikeay's Avatar
    mikeay is offline Cadillac Owners Fanatic
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    Re: northstar engine

    I have one in pieces in my garage. If there is something specfic you want to see I can take a picture.
    It's a 4.6N* VIN Y out of a 97 Deville.

  6. #5
    chazglenn3's Avatar
    chazglenn3 is offline Cadillac Owners Connoisseur
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    Re: northstar engine

    Quote Originally Posted by Ranger View Post
    It was interesting to note that the new VVT Northstar has returned to premium fuel recommendation.
    The compression ratio is back up to 10:5:1 again. I'm pretty sure that what it is in my '99 STS.

  7. #6
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: northstar engine

    I think they were 10.3:1 and lowered to 10:1 in 2000.

  8. #7
    Counselor is offline Cadillac Owners Member
    Automobile(s): Cadillac 96 STS
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    Re: northstar engine

    Have a 96 STS northstar 4.6L been running regular in it and it runs fine getting 24.5 miles per gallon. Engine has 95,000

  9. #8
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: northstar engine

    The Northstar is equipped with a knock sensor and thus will run very well on regular. Use the search feature at the top of this page if you want more info on it.

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