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  • Powerbreaking HURTS my ET... what gives?

    Okay guys... this is my first season racing. I've been out 4 times at 3 different tracks. Each time I go, I improve, but each time I go, I do better just hammering the gas from 0rpm.

    I have a 97 A4, near stock, 3.08's open. Please don't tell me to get LSD or 3.42's... that's not what I want to hear [img]smile.gif[/img] I just want help with my launch so I can beat my 16.04 and get into 15's before I start to mod the car.

    I have tried reving to 1800, 1500, 1300, 1000 and I am always at least a tenth slower than when I just mash the pedal.

    I know on one of my local tracks, I dont' spin at all, so this doesn't make any sense there. The other 2 I do spin.

    Any ideas? Or is this normal for some cars? I've done no weight reduction and i'm 230 myself. I'm pretty sure the tuning is good. I dyno'd at 163 hp and 196 trq. New plugs/wires, cleaned out TB, oil change, injector cleaner all the maintainance stuff.

    Thanks!
    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>

  • #2
    Well...

    if you mash from idle and dead hook.. and then mash from brake torquing it up higher and spin, you're obviouslely launching harder.. you just don't have enough traction..

    If you WOULD hook you would do better.

    I would say your runs at the one track were you did hook are a little flawwed.

    With an open differential it will be much easier to spin, even with 3.08's.

    Most stock converertered A4's I know do MUCH better when they brake torque their car as HIGH a spossible.. even 2000-2500 RPM's if you can without spinning while your stalling.

    If you have traction issues, there's not much you can do... unless you get an LSD.
    Keith - Chicago<br /><a href=\"http://www.hptuners.com\" target=\"_blank\">HP Tuners - PCM Reprogramming</a><br /><a href=\"http://www.dxsoftware.com/magnus/\" target=\"_blank\">97 Firebird V6 to LS1 swap</a><br /><b>V8 9.967@132.78</b> 1.322 60\' NA Heads/Cam<br /><b>V8 10.295@128.48</b> 1.363 60\' NA Cam Only<br /><b>V8 10.987@119.31</b> 1.422 60\' NA Stock Internals<br /><b>V6 13.674@98.22</b> NA<br /><b>V6 12.394@104.91</b> N20 100HP

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    • #3
      I can't stall mine higher than 1800-1900...it just won't go any higher. Perhaps I am pressing the brake too hard and not letting it off early enough?

      It must be my technique(or lack thereof) because everyone else says they powerbrake as high as possible too.

      Maybe I just need to work on that more.
      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>

      Comment


      • #4
        That sounds right for a 97.. mine was the same way.. 00+'s can brake torque higher.. which is why they cut better 60's and sometimes run better.

        ie: Bird Of Prey
        Keith - Chicago<br /><a href=\"http://www.hptuners.com\" target=\"_blank\">HP Tuners - PCM Reprogramming</a><br /><a href=\"http://www.dxsoftware.com/magnus/\" target=\"_blank\">97 Firebird V6 to LS1 swap</a><br /><b>V8 9.967@132.78</b> 1.322 60\' NA Heads/Cam<br /><b>V8 10.295@128.48</b> 1.363 60\' NA Cam Only<br /><b>V8 10.987@119.31</b> 1.422 60\' NA Stock Internals<br /><b>V6 13.674@98.22</b> NA<br /><b>V6 12.394@104.91</b> N20 100HP

        Comment


        • #5
          Thanks Keith... I guess i'll work on this for my last run of the season in 2 weeks. I'm taking a gas can so I can run with an empty tank but get more passes. We're going to spend the whole day there and TealV6 is trucking accross the border for some v6 moral support.

          My best at that track is 16.3@85, but since then i've done soem work and gotten 16.0's at 2 different tracks so i'm hoping for good things!

          [img]smile.gif[/img]
          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>

          Comment


          • #6
            <blockquote>quote:</font><hr>That sounds right for a 97.. mine was the same way.. 00+'s can brake torque higher.. which is why they cut better 60's and sometimes run better.<hr></blockquote>

            also, jeffa (NBMA4V6) ran better times than me when we were both stock (torque converter). when we raced, it seemed he beat me in the 60ft.
            2000 NBM M6 Camaro Z28<br />323/335

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            • #7
              Hey Evan, when are you going to race with your new converter? I want some results on that converter because i've spoken to Andre and am planning on ordering from him this winter.

              Keep my informed man [img]smile.gif[/img]
              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>

              Comment


              • #8
                We went last week with the converter is in car, he couldn't hook- at all, so his time's aren't much improved- but just wait til the drag radials and the LCA's EVAN= [img]graemlins/burnout.gif[/img]
                AIM: escalier deverre<br />\'02 Pearl Blue Metallic RSX-S (daily driver)<br />\'98 Black Firebird<br />98 V6 turbocharged to 02 LS1 swap<br />\'02 LS1/4L60E<br />LS6 Block, LS6 Intake Manifold, Thunder Racing 215/220 .600/.523/115 Cam, Titanium Retainers, Crane Double Valve Springs, 125 shot NX Wet Kit w/ NOS brand Purge, True Dual \"H\" Pipe w/ two chambers and dumps, 17x11(rear) and 17x9.5(front) Black Powdercoated ZR1 Replicas on 315 and 275 BFGoodrich Comp T/A\'s (Street)/ET Drags/Skinnies on Weldlites(Track), 3.42/LSD

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                • #9
                  Play with tire psi for traction and improved rolling resistance.
                  30 psi in the rear
                  40 psi in the front
                  Stalling it up makes you spin correct? and then you go slower or stalling it up and you still dead hook and go slower?
                  You might not want to run the car close to empty because all that gas is helping traction.
                  Next time you go to the track watch for guys n gals who seem to be frequent racers there. Watch how they line up and stage. There is a grove to get in, try that.
                  Race car - gone but not forgotten - 1997 firebird V6
                  nitrous et & mph: 12.168 & 110.95 mph, n/a 13.746 & 96.38 mph
                  2013 Dodge Challenger SRT8: 12.125, 116.45
                  2010 Ford Taurus SHO: no times yet

                  Comment


                  • #10
                    I agree about the groove that you wanna be in, only if your an all out drag car like the funny cars, come on were talking about a v6. I dont think finding a groove in a car that doesnt have 6000 hp will make any difference in the 1/4, well any noticeable difference.
                    Longtubes, true duals, ram air, caspers tps tec, ls1 26lb injectors, supersix powerpack, heads milled .020, comp cam .507 220/224 114 ls, forged internals and chromeoly pushrods, bored .030 over, tb spacer, tranny built with stiffer springs and kevlar bands, bigger servo, transgo stage 3 shift kit, edge 3600 stall, 1 pc aluminum ds, 3.73 superior gears, lsd rear ,custom pcm tuning, walbro 255 in tank,

                    Comment


                    • #11
                      <blockquote>quote:</font><hr>Originally posted by SLOWBRAEATER:
                      I agree about the groove that you wanna be in, only if your an all out drag car like the funny cars, come on were talking about a v6. I dont think finding a groove in a car that doesnt have 6000 hp will make any difference in the 1/4, well any noticeable difference.<hr></blockquote>

                      And your track experience is??????
                      How many runs have you made down the 1/4 mile?
                      By the end of November I shall have close to if not just over 600 passes on my bird, how many do you have?
                      I've got several on mom's 98 and 00 c5's, my buddies nitroused skylark etc

                      My reasoning for saying stage in the groove:
                      He has 308 gears and an open rear. If he starts experimenting with idle and higher stall launches he may eventually find that a higher stall works very well for him. Actually he is the first person I have spoken to that has said that he goes slower when he stalls it up.
                      My guess is he stalls it up, launches and spins a bit.
                      Transfering all 200 hp to one tire and getting traction isn't that easy.
                      I suggested adjusting tire psi to improve traction.
                      The groove tends to have more rubber there and promotes traction.
                      Outside the groove tends to be a bit slicker than compared to the rest of the area. There tends to be more concrete showin through.
                      The staging area crew tend to favor the groove with the mops and track bite.
                      Transferring all of 200 hp to one tire when the start rpm is stalled up in the groove should aid traction and improve times.
                      But you knew that right? :rolleyes:
                      Race car - gone but not forgotten - 1997 firebird V6
                      nitrous et & mph: 12.168 & 110.95 mph, n/a 13.746 & 96.38 mph
                      2013 Dodge Challenger SRT8: 12.125, 116.45
                      2010 Ford Taurus SHO: no times yet

                      Comment


                      • #12
                        Well no disrespect intended but i dont jot it down in a book how many times i have raced at a track. If i would have to guess i would say around 500+. I think instead of fixing traction issues trying to get in a "groove" which i still dont think will make an et difference on a 200 hp car, I doubt he will be smoking the tires halfway down the track like a 6000+ hp funny car, I think he should get lsd and maybe some nittos that would fix just about any of his traction issues, why do you think just because you visited the track more than me that makes you better than me or the best at drag racing? I dont understand this point. I know practice makes perfect but i doubt you are so much more better than me even know you have been at the track 600 times, i am willing to bet i have been there atleast 500 but like i said i didnt take the liberty of jotting it down. I have been racing since i was 16 im 23 now. I suppose you are better than me because you had the priveleage of driving your moms vette at the track, sorry my mom doesnt have a vette. I have drove several fast cars including my dads friends nova that runs 10.20s that was a beautiful experience but yes you are the man and know more than anyone about drag racing :bows: i wasnt trying to affend you but i dont think its right you act like you are better than everyone here because you have raced 600+ times at a track. I have my share of bracket racing trophies and i am not under the impression i am better than anyone here. I know that alot of people here are great at racing even know they havent visited a track 600+ times.
                        Longtubes, true duals, ram air, caspers tps tec, ls1 26lb injectors, supersix powerpack, heads milled .020, comp cam .507 220/224 114 ls, forged internals and chromeoly pushrods, bored .030 over, tb spacer, tranny built with stiffer springs and kevlar bands, bigger servo, transgo stage 3 shift kit, edge 3600 stall, 1 pc aluminum ds, 3.73 superior gears, lsd rear ,custom pcm tuning, walbro 255 in tank,

                        Comment


                        • #13
                          Don't put words into my mouth.
                          I never said I was better than you.
                          I never said I am the best at drag racing.
                          You are the one saying that many times in your reply.
                          I am speaking from experience only, I was backing it up with how many times I have run down the 1/4.
                          I included the vette also to give another car to the mix. I got that car to cut 2.0 60 ft's (actually 2.01) on run flat tires with 276 gears with a combo of tire psi, running in the groove, staging etc. Basically I was using all the techniques possible to make the car go quicker w/o spending money.

                          This guy who started the post said he is new (first season racing).
                          I am just trying to provide him with any and every possible tip I know to help him improve his times.
                          I remember trying to get traction with the damn open rear and 308 gears, what a pain in the *** !!!!

                          He specifically says he does not want to get LSD and 342's. I know these would improve his times. Add a set of sticky tires and sure groove or no groove it is not a problem. He wants to maximize what he currently has.
                          You suggested getting LSD, he said he does not want to do that.
                          You did not offer an option he seemed to want. I offered a suggestion that seemed to fit what he was asking.

                          As for keeping records, yes I do. I save every time slip and dyno run so I can learn from it and possibly improve my times.
                          I also watch the old timers run at the track and learn from them.

                          Take a look at your post and then mine, who is poking fun at who?
                          Sure I added the :rolleyes: smiley to your reply. Well, for someone who is as experienced as you are, then you could have suggested this to someone who was asking for a way to improve his traction of his 308 geared, open reared f body w/o the install of LSD but you did not
                          Race car - gone but not forgotten - 1997 firebird V6
                          nitrous et & mph: 12.168 & 110.95 mph, n/a 13.746 & 96.38 mph
                          2013 Dodge Challenger SRT8: 12.125, 116.45
                          2010 Ford Taurus SHO: no times yet

                          Comment


                          • #14
                            Thanks James!

                            I've been toying with the idea of putting my fronts up to 40psi, but you're the first to comment on that.

                            And you're correct, i dont' want to add LSD until I've reached my goal. At the beginning of the season(my first race), I ran a best of 16.7 and averaged 16.9 passes!

                            Without adding any mods, just tuning, practice and studying, i've gotten down to 16.0!!! My goal is to reach the 15's BEFORE modding my car. I will not mod a sick car. At this point I beleive my car is healthy and tuned bang on.

                            I could hit 15's by stripping 100lbs out, but I want to maintain my driving comfort, so i'm going to focus on what's left, my inconsistant launches.

                            I will try your suggestions. I will bring a gas can to play with my fuel weight. I plan on making more passes this time(usually only 5) unless I get it early on. And last but not least I plan on having fun like I always do!!!

                            Thanks for the advice...
                            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>

                            Comment

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