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909Re: [Cadillac_Performance_Association] Re: 4.9L performance parts

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  • Scott Pearson
    Dec 3 9:04 PM
      Just advancing the timing will only confuse your ECM. If you're going to
      advance the timing, you should also change the base timing in the
      calibration.

      Scott

      ----- Original Message -----
      From: "shwgidy" <shwgidy@...>
      To: <Cadillac_Performance_Association@yahoogroups.com>
      Sent: Wednesday, December 03, 2003 5:37 PM
      Subject: [Cadillac_Performance_Association] Re: 4.9L performance parts


      > Yeah your right porting the exhaust outlet will improve the hp a
      > lot. I have heard that a K&N filter and a fastchip.com chip will
      > give another 20hp. But I dont know about the fastchip, I think
      > advancing the timing 3-5 degrees does the same thing....
      >
      > If you do the allante intake swap be forwarned that there a lot of
      > possible trouble areas...
      >
      > -Brian
      >
      >
      >
      > --- In Cadillac_Performance_Association@yahoogroups.com, William
      > Lucke <wlucke@s...> wrote:
      > > The 4.9 will stay together at 6000 RPM... but it takes a lot of
      > work to get power from it, as the intake and exhaust ports are not
      > balanced. The intakes flow well, but the exhausts are small, in
      > typical emissions engine style, and require a LOT of porting to get
      > flow from them. Will look into that upper intake...
      > > Thanks
      > >
      > >
      > > Will
      > >
      > >
      >
      >
      >
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