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Brendan's 99 Grand Am GT update

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  • Brendan's 99 Grand Am GT update

    Ok so you guys remember my valvetrain noise thread and how the car sounded before. well i was never happy with it that way and never stopped my pursuit to end the noise.

    well after an amount of time i cant or feel like remembering its over.
    the car runs and sounds awesome. there is absolutely no noise except for the exhaust leak where the downpipe meets the rear header.

    well 2 weeks ago i took the engine apart to put the metal LIM gaskets in and figured while i was at it i would re-time it and tear apart the lifter and clean them and inspect the insides while i was at it.

    well i tried to get a video but the blackberry's video capturing quality sucks bad very very bad. so FML on that aspect but i did get some pics of it.

    ive got a few tuning issues to resolve. one being the idle which i need to bump up a tad since it still idles low enough to die when put in gear.
    the other issue is a stumble upon accel and when the engine has a load on it. Jon suggested i bump my AE table a tad.
    But i forgot to bring the laptop so i couldnt fix these issues so FML on that too.

    here are the pics since the video sucked bad.

    so all in all im happy now. the car has no valvtrain sound like it did before. im sure once i get another piece of gasket cut it will be quiet.

    if the pics are too big or anything let me know and ill fix them but there only 10x768

    yes i know thers the different tire on the pass front wheel i didnt feel like sitting there for a half an hour filling it up so that wheel went on.











    oh yeah and we cant forget where i got all the parts from. you cant even really notice they are there from a distance.
    Last edited by geldartb; 07-10-2009, 05:39 PM.
    sigpic
    99 Grand Am GT
    3400/3500 -Solid trans mount--TCE 65mm T-body---85mm LS2 maf---1 1/4' TCE intake spacers with 3400 upper--SLP Catback with flowmaster 80--TOG headers
    Modded 3400 lifters with LT1 springs---Comp Cams 26986 Springs
    1357 cam 227 233 .050 dur
    515 515 lift 112 lsa
    15.232@88.85mph on stock 3400---New time to come



  • #2
    idle video


    short driving video


    oh yeah and incase you dont remember what it sounded like before heres a comparison video.
    Last edited by geldartb; 07-10-2009, 05:35 PM.
    sigpic
    99 Grand Am GT
    3400/3500 -Solid trans mount--TCE 65mm T-body---85mm LS2 maf---1 1/4' TCE intake spacers with 3400 upper--SLP Catback with flowmaster 80--TOG headers
    Modded 3400 lifters with LT1 springs---Comp Cams 26986 Springs
    1357 cam 227 233 .050 dur
    515 515 lift 112 lsa
    15.232@88.85mph on stock 3400---New time to come


    Comment


    • #3
      I can tell the tune is a lot better cause there is no smoke coming out of the exhaust and it doesn't try to die. Time for a new track time
      Ben
      60DegreeV6.com
      WOT-Tech.com

      Comment


      • #4
        i think the smoke was partly cause it wasnt that warm that day. iirc i upped the idle a little bit more from the last video.

        ive actually gotten alot done with getting it to run decent. still needs a little bit of help in the tune dept since it still has a very slight hesitation on hard accel.

        looking through some of the scans i dont think ive gone over 60% throttle yet and it still hauls ass. ive got one from today with all the recent changes,ill add up later.

        EDIT
        heres the latest scan with all the changes i did this week
        http://www.scandepot.net/viewscan.php?pk=4741
        Last edited by geldartb; 07-10-2009, 07:20 PM.
        sigpic
        99 Grand Am GT
        3400/3500 -Solid trans mount--TCE 65mm T-body---85mm LS2 maf---1 1/4' TCE intake spacers with 3400 upper--SLP Catback with flowmaster 80--TOG headers
        Modded 3400 lifters with LT1 springs---Comp Cams 26986 Springs
        1357 cam 227 233 .050 dur
        515 515 lift 112 lsa
        15.232@88.85mph on stock 3400---New time to come


        Comment


        • #5
          How freaking thick are those intake spacers? WOW! Grand Ams must have tons of hood clearance.
          sigpic New 2010 project (click image)
          1994 3100 BERETTA. 200,000+ miles
          16.0 1/4 mile when stock. Now ???
          Original L82 Longblock
          with LA1, LX9, LX5 parts
          Manifold-back 2.5" SS Mandrel Exhaust. Hardware is SS too.

          Comment


          • #6
            1" any more and it wouldn't close. i think it might be the equivalent of the 3500 UIM and 1/2 spacers. if they were more than an inch id have to get custom on one of the cross braces on the hood.

            honestly i think its touching the hood but none of the paint has come off my UIM. i think that might be partly my engine either doesn't move or barely moves.

            that valve cover sucks i had one that i painted the same color but when i took it off the gasket came out and i seriously spent prob the better part of a half hour and still couldn't manage to get the gasket to stay in the cover. so i tried that one and it fit so thats what went on.

            this thing is a beast looking back at the scan i did today and im still only hitting 80% throttle and about 4200rpm and this thing was still pulling for more.
            sigpic
            99 Grand Am GT
            3400/3500 -Solid trans mount--TCE 65mm T-body---85mm LS2 maf---1 1/4' TCE intake spacers with 3400 upper--SLP Catback with flowmaster 80--TOG headers
            Modded 3400 lifters with LT1 springs---Comp Cams 26986 Springs
            1357 cam 227 233 .050 dur
            515 515 lift 112 lsa
            15.232@88.85mph on stock 3400---New time to come


            Comment


            • #7
              Nice car and that was what I was thinking about for my UIM on my 3500 but I keep hearing how the '99 plain manifolds don't flow very well.

              Also not to be critical of a nice car, but you REALLY need some exhaust tips.

              Oh and the valve cover gasket.

              I had to actually cut a little piece out of mine to get it back in. I just made sure to keep the cut at the top and it doesn't leak.
              Last edited by asylummotorsports; 07-11-2009, 10:58 AM.

              Comment


              • #8
                when the valve cover gasket when new(got them with the 3500 lim set) they went in no problem. they must expand alot when they get heated up.

                for the muffler thats only temporary until i find a better one. im leaning towards an edlebrock sdt or a borla pro xs both in crossflow config.

                Edelbrock 55762 SDT chambered muffler
                http://performanceparts.com/part.php?partID=282397

                BORLA ProXS mufflers 40477. obviously i wont be spending 300 bucks on a muffler ive found them for cheaper this was just the first link i found
                http://www.realtruck.com/product/115...oval_body.html

                until i get the new muffler im prob gonna get some better piping for the tips thats at a 90* instead of the wierd angle this pipe is.

                the 99 UIM sucks if you look inside it you can see a little shelf. on the 00+ its a smooth track straight in. i found this out after spending the time to open it up to 65mm.

                i have a 3500 UIM but i cant decide which im gonna go with in the long run. so unless someone chimes in that the 3500 UIM has some secret hidden power in it and is better than what i got now then what i got is staying.

                the shaving of the letters off took maybe 5 minutes with a flapper wheel and an angle ginder and then 5 minutes to smooth it out. i wanted the shaved look but didnt want to use the older plenum.
                Last edited by geldartb; 07-11-2009, 11:46 AM.
                sigpic
                99 Grand Am GT
                3400/3500 -Solid trans mount--TCE 65mm T-body---85mm LS2 maf---1 1/4' TCE intake spacers with 3400 upper--SLP Catback with flowmaster 80--TOG headers
                Modded 3400 lifters with LT1 springs---Comp Cams 26986 Springs
                1357 cam 227 233 .050 dur
                515 515 lift 112 lsa
                15.232@88.85mph on stock 3400---New time to come


                Comment


                • #9
                  From what I have read on here and other places, the later 3400 UIM actually outflows the 3500. I had my 3500 ported by Ben and noticed no improvement AT ALL, however I blame that on perhaps only doing the upper.

                  I'm going to get a 3400 UIM and see it it makes any difference.

                  Comment


                  • #10
                    yeah ive been reading up on the 3400 vs 3500 uim all along. but like i said until theres some significant gain ill stick with the 3400 uim for now.

                    i got a 3500 UIM that was ported by ben but have yet to put it on i wanted to get the car all straightened out engine wise before i threw other stuff on.
                    sigpic
                    99 Grand Am GT
                    3400/3500 -Solid trans mount--TCE 65mm T-body---85mm LS2 maf---1 1/4' TCE intake spacers with 3400 upper--SLP Catback with flowmaster 80--TOG headers
                    Modded 3400 lifters with LT1 springs---Comp Cams 26986 Springs
                    1357 cam 227 233 .050 dur
                    515 515 lift 112 lsa
                    15.232@88.85mph on stock 3400---New time to come


                    Comment


                    • #11
                      i heard that 3500 uim mani when the lim and heads are ported will suit it better and that the throttle response is quite noticeable but not sure if it made much horsepower difference between the 2
                      94 BerrettaZ26 3400,5 spd, aluminum flywheel, stg3+ spec clutch, poly mounts everywhere, strut and strut to rad braces, s&s headers, euro mirrors, and taillights, E36 headlights, blk widow spoiler, GTU rimz, intrax, KYB, OBD2 swap rear disk swap with ss lines and ss clutch line, addco rear bar

                      07 Chrysler 300 Base, with C frt bumper blk halo headlights and foglights. Coming soon tinted taillights and 22". The Family ride

                      Comment


                      • #12
                        the heads and lim are ported i bought the lim from ben here and i bought the heads off someone who was parting out but the came from ben.

                        so theres really not an unported part on the top half of the engine.

                        throttle response is already up there with this setup.
                        sigpic
                        99 Grand Am GT
                        3400/3500 -Solid trans mount--TCE 65mm T-body---85mm LS2 maf---1 1/4' TCE intake spacers with 3400 upper--SLP Catback with flowmaster 80--TOG headers
                        Modded 3400 lifters with LT1 springs---Comp Cams 26986 Springs
                        1357 cam 227 233 .050 dur
                        515 515 lift 112 lsa
                        15.232@88.85mph on stock 3400---New time to come


                        Comment


                        • #13
                          The 3500 UIM ports are smaller than the 3400, but a quick die grinder job and they open right up since there is no runner. Then it will flow good. Also there is more to it than just flow. There is more plenum space, different flow pattern, etc. Ben said it broadens the power band, which I noticed my motor isn't as peaky anymore, but just pulls all over. I don't have a before and after feel from just the UIM, cause I went from a small port lower to the large port lower and 3500 UIM all at once. But the 3000 RPM "vtec" kick in feel is no longer there. It just moves off idle and keeps pulling.
                          sigpic New 2010 project (click image)
                          1994 3100 BERETTA. 200,000+ miles
                          16.0 1/4 mile when stock. Now ???
                          Original L82 Longblock
                          with LA1, LX9, LX5 parts
                          Manifold-back 2.5" SS Mandrel Exhaust. Hardware is SS too.

                          Comment


                          • #14
                            I ran both a ported 3400 upper and a ported 3500 upper at Epping last year, the times were within 1 tenth, and I think that was more due to the fact that I had my street tires that day and my 60' times were all over the place. I cant say I've notice any gains with the 3500 upper on there.

                            Got Lope?
                            3500 Build, Comp XFI Cam 218/230 .050 dur .570/.568 lift 113LSA
                            Fully Balanced, Ported, 3 Angle Valve Job, 65mm TCE TB, S&S Headers.
                            Stage-1 Raybestos/Alto 4t60e-HD, EP LSD, 3.69FDR
                            12.61@105 Epping NH Oct 2015 Nitrous 100shot (melted plugs) 13.58@98.8 N/A 3200LBS

                            Comment


                            • #15
                              please forgive me but it's dumb question time...why do you have spacers on the intake?. i have never seen that before and now i am curious

                              Comment

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