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  • #1

    Dyno Results

    Just got the car Dynoed. I only did it N/A because I have a very strange problem with the injectors dropping pulse width when the nitrous kicks in. I need to figure that one out before I push the car with nitrous again. Here are the N/A numbers.

    231.5 RWHP @ 6000 rpms
    230.6 RWTQ @ 4700 rpms

    The car might have more above 6000 rpms but something happens at 6000 to cause the car to pull fuel. All the limiters (at least the ones I can see with HP Tuners) have been raised over 6400 but there is still some kind of limiter at 6000 rpms that I can't see.

    Hopefully, I will get the nitrous problem figured out and get some numbers on the juice.
    2001 Firebird 3.8L V6 M5,<br />It once had....<br />NX Nitrous Wet Kit, ZZP X-P Hot Cam, <br />3.42 LSD, Pacesetter Headers, <br />36# Injectors, HP Tuners<br />322 RWHP, 379 RWTQ<br />13.596 @ 102.56 w/100 shot
    Tags: None
  • #2
    Nice pull
    I will take on all comers...or come on all takers!!! Whichever you prefer.

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    • #3
      Nice! [img]graemlins/rock.gif[/img]
      I can't wait to get mine on a dyno. Yours did so well, and it's not even really an N/A cam. With my cam and the heads, I'd probably be even higher.
      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

      • #4
        nice. i need to send you my file.
        2000 FIREBIRD NBM<br />Thanks to:<br />TSP, ZZP, TCI, Comp Cam, Whisper, GM, Lakewood, TrafficJamz Car Audio,HP Tuner, Alterstart, texas drivetrain and performance, BMR<br /><br />1990 BLUE CAMARO RS<br />1980 z28 <br /><br />venom-vi vice president

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        • #5
          hmmm...yeah i think you're running lean on the juice..be careful man..with a cam and those numbers n/a you should be more like mid - high 12s with traction and a wet 100 shot..are you still on the stock injectors?..you wouldnt think you'd need to increase them because you're running a wet kit..but i wonder what all that pressure to the rail and the cam is doing to them..thats why i didnt go with a cam..i'd NEVER be able to tune for it lol ..but thats a VERY nice n/a pull..when you get the nitrous and the cam playing friendly..its gonna rock even MORE ..nicely done [img]graemlins/rock.gif[/img]
          <b>12 SECOND DUAL STAGE DRY NITROUS POWERED 98 A4 V6 CAMARO<br /><a href=\"http://www.mysickcamaro.50megs.com\" target=\"_blank\">www.MySickCamaro.50megs.com</a><br />Best ET: 12.82@103<br />Best MPH: 104.7<br />Best 60\': 1.75 - Stock TC</b><br /> </font><blockquote><font size=\"1\" face=\"Verdana, Helvetica, sans-serif\">quote:</font><hr /><font size=\"2\" face=\"Verdana, Helvetica, sans-serif\">Originally posted by Shodown:<br /><strong>1DV6 runs 12\'s...enough said. </strong></font><hr /></blockquote><font size=\"2\" face=\"Verdana, Helvetica, sans-serif\">

          Comment

          • #6
            I fell so stupid! I thought I checked this when I put the Cam in. Its the injectors. They are at max duty cycle. Did some searched and looked at it two ways.

            1. In the tech section it gives a formula for HP to Injector size. Based on that calculation, I am at 91% duty cycle, well over the recomended max of 80%

            2. During scanning, I am seeing the PCM requesting a 21.5 ms pulse width. Based on a formula on max pulse width, I need 20 ms at 6000 rpms. The injectors can not physically be open more then 20 ms.

            I NEED BIGGER INJECTORS.
            2001 Firebird 3.8L V6 M5,<br />It once had....<br />NX Nitrous Wet Kit, ZZP X-P Hot Cam, <br />3.42 LSD, Pacesetter Headers, <br />36# Injectors, HP Tuners<br />322 RWHP, 379 RWTQ<br />13.596 @ 102.56 w/100 shot

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            • #7
              thought so ;) ..give it a try man! ..i think youl'l actually see some better n/a numbers too..i dont think its the juice i think its the cam..you're running pretty close to locking them up with the cam alone..although the extra fuel for the nitrous does not utilize the injectors..it still needs to be supplied..rasing the fuel pressure at the rail..im not sure whether or not that would effect them..id get a set of 26# - 28# injectors..that should definitely do it [img]smile.gif[/img]

              [ January 22, 2005, 08:34 PM: Message edited by: 1DangerousV6 ]
              <b>12 SECOND DUAL STAGE DRY NITROUS POWERED 98 A4 V6 CAMARO<br /><a href=\"http://www.mysickcamaro.50megs.com\" target=\"_blank\">www.MySickCamaro.50megs.com</a><br />Best ET: 12.82@103<br />Best MPH: 104.7<br />Best 60\': 1.75 - Stock TC</b><br /> </font><blockquote><font size=\"1\" face=\"Verdana, Helvetica, sans-serif\">quote:</font><hr /><font size=\"2\" face=\"Verdana, Helvetica, sans-serif\">Originally posted by Shodown:<br /><strong>1DV6 runs 12\'s...enough said. </strong></font><hr /></blockquote><font size=\"2\" face=\"Verdana, Helvetica, sans-serif\">

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              • #8
                Damn those are some sweet numbers...

                get the injectors in! I wanna see that car in action...


                BTW run the car N/A anytime recently? what kind of mph were you pulling?
                -Eric<br /><a href=\"http://www.cardomain.com/id/mustangeater82\" target=\"_blank\">2000 NBM V6 Camaro 5-speed</a> T-top <i>converted</i><br /><b>14.467@95.45mph</b> <i>$0 in mods</i><br /><i>The member formerly known as MustangEater8251</i>

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                • #9
                  Those are quite good numbers! i wanna see numbers like that when my warranty goes away ;)
                  2000 Navy Blue T-top Camaro A4<br />TSP Rumbler <br />Carsound Hi-flo Cat<br />!MAF screen<br />Whisper lid<br />HPP3

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                  • #10
                    14.7 @ 96.8 N/A.

                    It was not on purpose, I turned the heater back on instead of arming the nitrous. Didn't figure it out until I crossed the finish line in third gear. :mad:

                    I started thinking about the HP and the injectors. The HP the formula talks about is motor HP. I am way over if you figure my 231 RWHP works out to almost 270 HP at the motor.

                    I am getting a set of 36# injectors that came off a GTP. They should work up to about 375 RWHP either N/A or boost. My cam already makes the idle really loppy, these injectors should make it down right obnosious.
                    2001 Firebird 3.8L V6 M5,<br />It once had....<br />NX Nitrous Wet Kit, ZZP X-P Hot Cam, <br />3.42 LSD, Pacesetter Headers, <br />36# Injectors, HP Tuners<br />322 RWHP, 379 RWTQ<br />13.596 @ 102.56 w/100 shot

                    Comment

                    • #11
                      yeah those will do it..im probably gonna be getting a set of 36# myself for juice..about the idle..try raising your idle RPM about 200 RPMs [img]smile.gif[/img]
                      <b>12 SECOND DUAL STAGE DRY NITROUS POWERED 98 A4 V6 CAMARO<br /><a href=\"http://www.mysickcamaro.50megs.com\" target=\"_blank\">www.MySickCamaro.50megs.com</a><br />Best ET: 12.82@103<br />Best MPH: 104.7<br />Best 60\': 1.75 - Stock TC</b><br /> </font><blockquote><font size=\"1\" face=\"Verdana, Helvetica, sans-serif\">quote:</font><hr /><font size=\"2\" face=\"Verdana, Helvetica, sans-serif\">Originally posted by Shodown:<br /><strong>1DV6 runs 12\'s...enough said. </strong></font><hr /></blockquote><font size=\"2\" face=\"Verdana, Helvetica, sans-serif\">

                      Comment

                      • #12
                        Yea, I will have to play with the idle a little. When you need those injectors, let me know. I got them from a guy who works on GTPs and I bet he has some more. $50 for the set. Not bad.
                        2001 Firebird 3.8L V6 M5,<br />It once had....<br />NX Nitrous Wet Kit, ZZP X-P Hot Cam, <br />3.42 LSD, Pacesetter Headers, <br />36# Injectors, HP Tuners<br />322 RWHP, 379 RWTQ<br />13.596 @ 102.56 w/100 shot

                        Comment

                        • #13
                          really??..awesome..and these are a direct fit for our cars?..for $50 i'll take em anyway..hook me up! [img]smile.gif[/img] ..my email is doering18@yahoo.com
                          <b>12 SECOND DUAL STAGE DRY NITROUS POWERED 98 A4 V6 CAMARO<br /><a href=\"http://www.mysickcamaro.50megs.com\" target=\"_blank\">www.MySickCamaro.50megs.com</a><br />Best ET: 12.82@103<br />Best MPH: 104.7<br />Best 60\': 1.75 - Stock TC</b><br /> </font><blockquote><font size=\"1\" face=\"Verdana, Helvetica, sans-serif\">quote:</font><hr /><font size=\"2\" face=\"Verdana, Helvetica, sans-serif\">Originally posted by Shodown:<br /><strong>1DV6 runs 12\'s...enough said. </strong></font><hr /></blockquote><font size=\"2\" face=\"Verdana, Helvetica, sans-serif\">

                          Comment

                          • #14
                            Let me get the first set to make sure everything is cool with this. I will then get you the guys e-mail. He takes Pay-Pal. By the time you get them, I will know what changes need to be made in the PCM and let you know.
                            2001 Firebird 3.8L V6 M5,<br />It once had....<br />NX Nitrous Wet Kit, ZZP X-P Hot Cam, <br />3.42 LSD, Pacesetter Headers, <br />36# Injectors, HP Tuners<br />322 RWHP, 379 RWTQ<br />13.596 @ 102.56 w/100 shot

                            Comment

                            • #15
                              that would be awesome..i asked HP Tuners a while ago and they just said..

                              The most common method is to just multiply the existing Flow Rate vs KPA table by the increase in injector size. eg. if you currently have 22lb and are going to 36lb then muliply the whole Flow Rate vs KPA table by 36/22 or 1.636

                              ..for my stock 22# injectors the flow rate vs KPA table actually says 22.18 ..so that equation comes out to be 36.15 ..so it seems accurate
                              <b>12 SECOND DUAL STAGE DRY NITROUS POWERED 98 A4 V6 CAMARO<br /><a href=\"http://www.mysickcamaro.50megs.com\" target=\"_blank\">www.MySickCamaro.50megs.com</a><br />Best ET: 12.82@103<br />Best MPH: 104.7<br />Best 60\': 1.75 - Stock TC</b><br /> </font><blockquote><font size=\"1\" face=\"Verdana, Helvetica, sans-serif\">quote:</font><hr /><font size=\"2\" face=\"Verdana, Helvetica, sans-serif\">Originally posted by Shodown:<br /><strong>1DV6 runs 12\'s...enough said. </strong></font><hr /></blockquote><font size=\"2\" face=\"Verdana, Helvetica, sans-serif\">

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