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  • Wideband Dyno Inside, Tuning Questions

    Here are my modifications:

    Bored 0.030 Over
    Custom 3.5" Cold Air Intake
    Pacesetter Ceramic Headers and Y-Pipe
    Offroad 3" Exhaust from Y-Pipe to SLP Dual/Dual Muffler
    Taylor Ignition Wires
    GM 22# Fuel Injectors

    Dyno Results (Load Bearing Dyno, Most Accurate):

    188 Horsepower @ 5250 RPMS
    210 Torque @ 4200 RPMS

    Estimated Engine Power (Assuming 16-18% Loss through RWD Auto w/2 Piece Steel DS):

    225-230 Horsepower
    245-250 Torque

    Wideband Air/Fuel was:

    13.5 @ 3200-3400rpms
    13.4 @ 3500-3600rpms
    13.3 @ 3700rpms
    13.2 @ 3800-4000rpms
    13.1 @ 4100-5100rpms
    13.0 @ 5200-5300rpms
    12.9 @ 5400-5500rpms
    12.8 @ 5600rpms

    PCM is going off to Texas Speed now for tuning. According to Viper's guide, they should prob add a little bit of fuel down low and take out some up top to get all the numbers to 13.2ish. That combined with some conservative timing advance matched to 92 octane fuel, correct? Comments?
    1997 Pontiac Firebird 3.9L<br /><br /> - TSP Dyno Tuned<br /> - Bored 0.040<br /> - ARP Rod Bolts / Head Studs<br /> - Custom CAI<br /> - Pacesetter Ceramic Headers / !Cat<br /> - 3\" Catback w/SLP Firehawk Muffler<br /> <a href=\"http://www.cardomain.com/memberpage/649312\" target=\"_blank\">http://www.cardomain.com/memberpage/649312</a>

  • #2
    i would fatten it up slightly at like 3700 to 4400 an dmight lean it out slightly after 4900 where your making peak hp. HOpefully those dyno a/f #'s are right on...considering its a load bearing dyno I'd hope so.
    00 GTP<br />98 Camaro v6<br />See, told ya I\'d be rockin another 4th gen :D<br />V6 & V8 tuning available at <a href=\"http://mysite.verizon.net/whenn1/\" target=\"_blank\">http://mysite.verizon.net/whenn1/</a>

    Comment


    • #3
      "fatten" do you mean richen?
      please clarify and be specific
      thanks!!
      so his AFR is close to perfect except for what you just advised?
      like:
      13.3 0000-3700 rpms
      13.4 3700-4400 rpms
      13.2 4400-4800 rpms
      13.1 4900-5500 rpms
      12.9 5600- rpms

      I really dont know what is perfectly Ideal, I'm just trying to find out what I should be shooting for during PE. ????
      thanks
      2k2 camaro, K&N, SLP whisper lid, Konis, AEM, HP Tuners, Angel eyes/Halos, CF SS ram air hood, 4.10s, Zexel Torsen, UMI SFCs, CrossFire, BFGs, Gatorback, Catco, Flows, and TLC! DONT feed the Trolls!

      Comment


      • #4
        i would try to get it to 12.8:1 from 3700-4400 on the street & lean it out to 13.0-13.2 thereafter till peak hp then back to 13.0-12.9 after peak hp. Specific enough?
        00 GTP<br />98 Camaro v6<br />See, told ya I\'d be rockin another 4th gen :D<br />V6 & V8 tuning available at <a href=\"http://mysite.verizon.net/whenn1/\" target=\"_blank\">http://mysite.verizon.net/whenn1/</a>

        Comment


        • #5
          and we should do this via PE right?
          my car was running as high as 16.0
          then it went down to 14.7
          and disabled fuel learn
          2k2 camaro, K&N, SLP whisper lid, Konis, AEM, HP Tuners, Angel eyes/Halos, CF SS ram air hood, 4.10s, Zexel Torsen, UMI SFCs, CrossFire, BFGs, Gatorback, Catco, Flows, and TLC! DONT feed the Trolls!

          Comment


          • #6
            00 GTP<br />98 Camaro v6<br />See, told ya I\'d be rockin another 4th gen :D<br />V6 & V8 tuning available at <a href=\"http://mysite.verizon.net/whenn1/\" target=\"_blank\">http://mysite.verizon.net/whenn1/</a>

            Comment


            • #7
              how do we control our commanded AFR? PE right?

              Comment


              • #8
                Originally posted by ezrollin:
                how do we control our commanded AFR? PE right?
                yes but if you don't know what your you can explode a piston on the first test drive !!!!
                www.turbov6camaro.com
                1997 3800 Series II Camaro
                4600 Stall for my ride to the mall :chug:
                7.18 @ 99.77 1/8 -1.8x sixty (current quickest v6 fbod)
                11.23 @ unk 5 1/4 - 7.19 1/8 - 1.83 sixty

                Comment


                • #9
                  on initial startup it runs high AFR (15.0).
                  after that it runs 10s , 11s, 12s
                  (talking about commanded AFR lo res)
                  I set my PE delay to 0.
                  changed injectors to 21.99.
                  I still have my PE temp(IAT) table stock.

                  I gotta wait 1 more week for wideband to get here.

                  This PE commanded AFR is calculated/determined by IAT, ECT, and TPS (which I set to 0).
                  Looks like I really should use the RPM table.

                  Weird I'm getting knock, even though it says that my commanded AFR is rich (10s-12s AFR)
                  2k2 camaro, K&N, SLP whisper lid, Konis, AEM, HP Tuners, Angel eyes/Halos, CF SS ram air hood, 4.10s, Zexel Torsen, UMI SFCs, CrossFire, BFGs, Gatorback, Catco, Flows, and TLC! DONT feed the Trolls!

                  Comment


                  • #10
                    Originally posted by slow6:
                    on initial startup it runs high AFR (15.0).
                    after that it runs 10s , 11s, 12s
                    (talking about commanded AFR lo res)
                    I set my PE delay to 0.
                    changed injectors to 21.99.
                    I still have my PE temp(IAT) table stock.

                    I gotta wait 1 more week for wideband to get here.

                    This PE commanded AFR is calculated/determined by IAT, ECT, and TPS (which I set to 0).
                    Looks like I really should use the RPM table.

                    Weird I'm getting knock, even though it says that my commanded AFR is rich (10s-12s AFR)
                    i have to command a 7 AFR to gett 11 AFR dont trust that thing also you gas milage is going to suck now too
                    www.turbov6camaro.com
                    1997 3800 Series II Camaro
                    4600 Stall for my ride to the mall :chug:
                    7.18 @ 99.77 1/8 -1.8x sixty (current quickest v6 fbod)
                    11.23 @ unk 5 1/4 - 7.19 1/8 - 1.83 sixty

                    Comment


                    • #11
                      Originally posted by slow6:
                      on initial startup it runs high AFR (15.0).
                      after that it runs 10s , 11s, 12s
                      (talking about commanded AFR lo res)
                      I set my PE delay to 0.
                      changed injectors to 21.99.
                      I still have my PE temp(IAT) table stock.

                      I gotta wait 1 more week for wideband to get here.

                      This PE commanded AFR is calculated/determined by IAT, ECT, and TPS (which I set to 0).
                      Looks like I really should use the RPM table.

                      Weird I'm getting knock, even though it says that my commanded AFR is rich (10s-12s AFR)
                      Wow. Sounds to me like you might want to do some reading about tuning before making all these changes. Why would you want to always run in PE mode??

                      [ January 21, 2006, 01:53 PM: Message edited by: 98Camaro3.8 ]
                      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.

                      Comment


                      • #12
                        Originally posted by 98Camaro3.8:
                        </font><blockquote>quote:</font><hr />Originally posted by slow6:
                        on initial startup it runs high AFR (15.0).
                        after that it runs 10s , 11s, 12s
                        (talking about commanded AFR lo res)
                        I set my PE delay to 0.
                        changed injectors to 21.99.
                        I still have my PE temp(IAT) table stock.

                        I gotta wait 1 more week for wideband to get here.

                        This PE commanded AFR is calculated/determined by IAT, ECT, and TPS (which I set to 0).
                        Looks like I really should use the RPM table.

                        Weird I'm getting knock, even though it says that my commanded AFR is rich (10s-12s AFR)
                        Wow. Sounds to me like you might want to do some reading about tuning before making all these changes. Why would you want to always run in PE mode?? </font>[/QUOTE]word
                        www.turbov6camaro.com
                        1997 3800 Series II Camaro
                        4600 Stall for my ride to the mall :chug:
                        7.18 @ 99.77 1/8 -1.8x sixty (current quickest v6 fbod)
                        11.23 @ unk 5 1/4 - 7.19 1/8 - 1.83 sixty

                        Comment


                        • #13
                          ok, then how can you command an AFR without running in PE?? how can you control fueling without PE?
                          v6s dont use VE, unless !MAF
                          yes, gas mileage sux
                          2k2 camaro, K&N, SLP whisper lid, Konis, AEM, HP Tuners, Angel eyes/Halos, CF SS ram air hood, 4.10s, Zexel Torsen, UMI SFCs, CrossFire, BFGs, Gatorback, Catco, Flows, and TLC! DONT feed the Trolls!

                          Comment


                          • #14
                            Originally posted by slow6:
                            ok, then how can you command an AFR without running in PE?? how can you control fueling without PE?
                            v6s dont use VE, unless !MAF
                            yes, gas mileage sux
                            fueling is controld buy the maf..... you should not have to worry about PE usless you are WOT
                            www.turbov6camaro.com
                            1997 3800 Series II Camaro
                            4600 Stall for my ride to the mall :chug:
                            7.18 @ 99.77 1/8 -1.8x sixty (current quickest v6 fbod)
                            11.23 @ unk 5 1/4 - 7.19 1/8 - 1.83 sixty

                            Comment


                            • #15
                              Originally posted by slow6:
                              ok, then how can you command an AFR without running in PE?? how can you control fueling without PE?
                              v6s dont use VE, unless !MAF
                              yes, gas mileage sux
                              VE doesn't have anything to do with normal ops.

                              You don't have to be in PE mode to command an AFR. You can set it seperately for Startup, Open Loop, Closed Loop, and PE. You don't need/want to run around town with a 13:1 AFR.

                              [ January 22, 2006, 02:07 AM: Message edited by: 98Camaro3.8 ]
                              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.

                              Comment

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