3'' exhaust now on - FirebirdV6.com/CamaroV6.com Message Board

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  • 3'' exhaust now on

    Well i did have a 2.5'' i pipe and a 80 series flowmaster, now i just added a 3'' carsound cat, 3'' 45* bend for the s pipe and a 3'' i pipe. what a difference in sound and it feels quite nice now too. now all's i need are my hearders!

    [ August 16, 2003: Message edited by: FireFighter ]</p>
    2005 Cavalier LS Sport M5<br /> <a href=\"http://members.cardomain.com/firefighter8615\" target=\"_blank\">http://members.cardomain.com/firefighter8615</a>

  • #2
    damyum nobody cares :(
    2005 Cavalier LS Sport M5<br /> <a href=\"http://members.cardomain.com/firefighter8615\" target=\"_blank\">http://members.cardomain.com/firefighter8615</a>

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    • #3
      [img]graemlins/thumbsup.gif[/img] Glad you made the upgrade! 2.5" is hardly even an upgrade over stock. [img]smile.gif[/img]
      Matt
      1998 Mystic Teal Camaro M5
      Whisper Lid, Pacesetter Headers, Catco Cat, Dynomax Super Turbo, B&M Shifter, BMR STB, LSD, P&P Intakes, GT2 Cam, Comp OE Lifters, 1.7 Roller Rockers, Pushrods, SSM Heads, DHP PowrTuner.

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      • #4
        i know i never really felt anything with the 2.5'' over stock.
        2005 Cavalier LS Sport M5<br /> <a href=\"http://members.cardomain.com/firefighter8615\" target=\"_blank\">http://members.cardomain.com/firefighter8615</a>

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        • #5
          Now hurry up and go to the track and be the first one to prove by 1/4 times that 3" makes a difference over 2"!! [img]graemlins/burnout.gif[/img]

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          • #6
            <blockquote>quote:</font><hr>Originally posted by SlimJim1284:
            Now hurry up and go to the track and be the first one to prove by 1/4 times that 3" makes a difference over 2"!! [img]graemlins/burnout.gif[/img] <hr></blockquote>

            I dont think anyone would argue that point. Going from a 2" exhaust to a 3" would prove many gains [img]tongue.gif[/img]

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            • #7
              <blockquote>quote:</font><hr>Originally posted by 317indy:


              I dont think anyone would argue that point. Going from a 2" exhaust to a 3" would prove many gains [img]tongue.gif[/img]
              <hr></blockquote>

              Not on the 3.8
              99 3800 NBM Camaro - (Xcessive Xcelleration Racing Team)<br />Ram/Cold Air Induction (custom)<br />Modified 4l60e Valve Body<br />Z28 Catback<br />SS Hood <br />Modified 99 GM 3800II <br />JB Performance Engineering<br />jfbperformance@cox.net

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              • #8
                <blockquote>quote:</font><hr>Originally posted by 317indy:


                I dont think anyone would argue that point. Going from a 2" exhaust to a 3" would prove many gains [img]tongue.gif[/img]
                <hr></blockquote>


                That's not a fair statement. A stock 3.8 may suffer... only one way to find out. Dyno! Bigger isnt' always better ;)
                1997 silver Camaro RS<br />|T-Type Powered|<br /><a href=\"http://www.kwfbody.com\" target=\"_blank\">Looking for a local F-Body club in K/W, Ontario, Canada?</a>

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                • #9
                  It has already been proven by Toast on this board. He ran a 15.3 with an air filter and a ravin muffler. When he converted it to a catco cat and 3inch flowmaster cat back he ran a 14.8. I don't know why anyone beleives it dropped off half a second or more???? I know him, and he wouldn't lie about it, he has time slips to prove it.

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                  • #10
                    <blockquote>quote:</font><hr>Originally posted by Ted:
                    It has already been proven by Toast on this board. He ran a 15.3 with an air filter and a ravin muffler. When he converted it to a catco cat and 3inch flowmaster cat back he ran a 14.8. I don't know why anyone beleives it dropped off half a second or more???? I know him, and he wouldn't lie about it, he has time slips to prove it.<hr></blockquote>

                    Yes it is true. One misconception on the 3.8 is that they need a ton of backpressure. Indeed the 3.8 doe need some back pressure but a balance can be achevied in doing so. 1st let me point out taht no matter what anybody say the 3.8 LOVES to breath and weather it is bring in the air or expelleing it the more the better. On the other hand you can't do full exhaust and expect any gain if you have not done no intake work. Ther must be an equal balance there that must be acheved in order for any gains to be noticed. Also on a mostly N/A car you need to have a balence in exhaust too. If you run with out a cat into a SLP Loudmouth for example you are going to lose too much backpressure and a ton of power but, if you run a highflow cat into a 3 inch exhaust that exits into a flowmaster(which by its design uses the engine's backpressure to help move exhaust gas around the chambers) then you would achevie that balance. I chose flowmaster for 2 reasons; 1st for the sound, 2nd so i can achevie that right amount of backpressure needed with out scrificing power.
                    2004 Dodge Dakota 3.7 litres of raw power!!<br />Nothing but a 6!<br />Do you know for sure? John 3:18

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                    • #11
                      track times wont be a judging thing tho because i added some other stuff with the exhaust
                      2005 Cavalier LS Sport M5<br /> <a href=\"http://members.cardomain.com/firefighter8615\" target=\"_blank\">http://members.cardomain.com/firefighter8615</a>

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                      • #12
                        Toast, well said. Even though I'm still jealous of you having a better time than me with less mods. [img]graemlins/crybaby.gif[/img]
                        <b>99 Camaro Z28 A4</b><br />R.I.P. 00 Firebird 3.8<br />14.89 @ 90, 2.03 60\'

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                        • #13
                          my bad, lol, i meant 2.25". anyway here we go again, sry I started it lol.

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