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pulley upgrade with no chip?

Discussion in 'Thunderbirds' started by acobra03, Apr 5, 2011.

  1. acobra03

    acobra03 New Member Established Member

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    Buena NJ
    I've got a friend with a 90 SC Bird. He ordered a 2.8 pulley and was told he could swap it with the stock pulley with an tuning, or chip. Does this sound right? I told him he needs a chip, he says it's not needed.
     
  2. Blown38

    Blown38 Active Member Established Member

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    Dumfries, VA
    He'll should be ok. The stock tune is really fat. He will gain the most down low tho. Up high it will start pulling timing due to high IAT or knock sensor activity.
     
  3. acobra03

    acobra03 New Member Established Member

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    Location:
    Buena NJ
    thanks Chris
     

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