Factory Specs for Compression??

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Northstar Engines and System Technical Discussion Discussion, Factory Specs for Compression?? in Cadillac Engine Discussion; Any one know what the factory specs are for normal compression on a north* 98 concours here....
  1. #1
    fristim is offline Cadillac Owners Fanatic
    Automobile(s): 98 Concours 212,000 orginal motor,trans
    Join Date
    Jul 2003
    Springfield Mo

    Factory Specs for Compression??

    Any one know what the factory specs are for normal compression on a north* 98 concours here.

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  3. #2
    Raze's Avatar
    Raze is offline Cadillac Owners Enthusiast
    Automobile(s): 90 Eldo -SOLD-, 98 ETC -SOLD-, 86 XR4Ti Track Car, 07 Ranger
    Join Date
    May 2004
    Atlanta, GA

    Re: Factory Specs for Compression??

    The Factory Service Manual for my 98 ETC has the list at 140-170psi at cranking speed with throttle open

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