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Project: L-body headers

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  • Jon, my whole stainless 2.5" mandrel exhaust is connected with those. They hold like a mofo when torqued all the way and don't leak. They work for butt joint AND slip joint as they conform to fit.

    DP (clamp) Cat (clamp) intermediate pipe (clamp) pipe over axle (clamp) muffler (clamp) pipe (clamp) tips

    The clamp on the cat is grabbing less than .5" of the cat since it's a lot bigger than a slip fit onto 2.5" pipe for some odd reason (the muffler was dead on though). So it has even less surface area than a butt-joint and the clamp is stretched/deformed a lot more than other areas but it's holding on tight. That is the worst connection and supports the most weight as there are no exhaust mounts until after the axle where the stock hanger spot is used with a stainless rod welded to the pipe, and then a muffler strap mount from a 95 with a custom stainless strap, and then the 94 muffler mount clamped to the pipe coming out of the muffler with custom stainless L bracket and stainless u-bolt clamp.

    These clamps are used on semi's and such.

    The blue car's engine rocks more than the orange car I'm sure, as it right now has all stock mounts except for the prothane engine insert. The orange car will have 2 poly dogbones, the prothane insert, and the dual 5spd 92-93 mounts. The orange car doesn't have any flex pipe as is and the pipe doesn't hit anything which is pretty amazing.

    The orange car I'll put a flex pipe instead of a cat there, and the drive train is back 1" to align the axles with the hubs, but also needs to move back .5" in rotation (see the thread Rodney posted) with the dogbones. So that means the DP will be back 1" which should be fine, and also raised up .5" or so. When you get on it, the DP will lower so that's fine. In reverse if you hammer it it could rub though, depending on mounts.

    The system that is on blue will be on orange minus the cat, in it's place a flex pipe.
    Last edited by IsaacHayes; 03-05-2010, 05:51 PM.
    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


    • I just noticed the location of the 2nd O2 sensor bung. Will that clear the MBC? Wondering why it wasn't in the same spot the EGR would be. Hard to tell. I'll find out though, that's what this set is for!
      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


      • Those band clamps are aswesome. I have them on my car, and have been working great for about 2yrs so far!
        sigpic
        1994 Oldsmobile Cultass Supreme SL
        3400/Getrag 284 5spd
        1995 Chevy K1500 350c.i. 5spd Z71
        350/NV3500 5spd
        2014 Chevrolet Malibu LS

        Comment


        • I have a thought......... hows about selling a set of headers as a unwelded kit, with the pipes as shown, collectors, and flanges for anyone who has a weird car........just a thought.... look nice though! did i miss it or is there any dyno numbers

          Comment


          • I dont think it would be worth it if he just re-sold you the bends cut to what you need, but i really wish there was somthing available for those on a tighter budget. Im not entirly sure what can be sorted out, but im open to pm's.

            Comment


            • Originally posted by highmiler View Post
              I have a thought......... hows about selling a set of headers as a unwelded kit, with the pipes as shown, collectors, and flanges for anyone who has a weird car........just a thought.... look nice though! did i miss it or is there any dyno numbers
              You would need to weld everything together anyways so why wouldn't you just make your own then?

              I don't believe their are any dyno numbers but IIRC you should gain roughly 15-20 at the least.
              sigpic
              ----------
              BUILT Turbo 3400/4t65e-HD powered Grand AM in the making.

              Comment


              • We plan on making so less expensive "shorties", but one thing at a time. Don't want to get ahead of ourselves. Turbo manifolds have also been inquired about...
                Links:
                WOT-Tech.com
                FaceBook
                Instagram

                Comment


                • Will headers be built to fit a w?
                  sigpic
                  1994 Oldsmobile Cultass Supreme SL
                  3400/Getrag 284 5spd
                  1995 Chevy K1500 350c.i. 5spd Z71
                  350/NV3500 5spd
                  2014 Chevrolet Malibu LS

                  Comment


                  • You would need to weld everything together anyways so why wouldn't you just make your own then?

                    Yah, I kinda plan on it, It would help justify the $2800 tig welder in the garage....lol but I still need to get flanges, then buy mandrel bends, and some 3-1 collectors........ just be kinda nice to get it all in one shot.... these look like very nice pieces, I do understand the reasons for hesitation on a kit though the margins are in the labor not the parts

                    Comment


                    • Originally posted by ForcedFirebird View Post
                      ... Turbo manifolds have also been inquired about...
                      In line

                      Comment


                      • Originally posted by 19Cutlass94 View Post
                        Will headers be built to fit a w?
                        if you look back a page or 2, you will see your answer.



                        its yes, but not right now, you have to sit tight.

                        Its runs!!!>>>Aint No 60* Sound Like Mehttp://youtu.be/YKEmNwa141U

                        Comment


                        • Originally posted by Weston19 View Post
                          I dont think it would be worth it if he just re-sold you the bends cut to what you need, but i really wish there was somthing available for those on a tighter budget. Im not entirly sure what can be sorted out, but im open to pm's.
                          Doing it right just isn't cheap. And sometimes you just need to wait till you can afford it and go with what you got for now.

                          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


                          • like me! i have a 3400 waiting for lower intake gaskets. i could use silicon...

                            my Dad has those clamps on his modded 03 Z06. they are just fine. i know it's hard to believe, but they do work well.
                            Andy

                            sigpic

                            fastest 1/8: 10.19@ 67.17
                            fastest 1/4: 16.16@ 82.70

                            62mm TB, 1.6 roller tip rockers, Ostrich 2.0, UD pulley, TB heater bypass, K&N, 180* stat, No cat, 99Grand AM dual cooling fans. 4T65E swap FDR 3.69, EP LSD, F.A.S.T. transmission controller, TransGo shift kit.

                            Comment


                            • like me! i have a 3400 waiting for lower intake gaskets. i could use silicon...

                              my Dad has those clamps on his modded 03 Z06. they are just fine. i know it's hard to believe, but they do work well.
                              Andy

                              sigpic

                              fastest 1/8: 10.19@ 67.17
                              fastest 1/4: 16.16@ 82.70

                              62mm TB, 1.6 roller tip rockers, Ostrich 2.0, UD pulley, TB heater bypass, K&N, 180* stat, No cat, 99Grand AM dual cooling fans. 4T65E swap FDR 3.69, EP LSD, F.A.S.T. transmission controller, TransGo shift kit.

                              Comment


                              • Yeah with only .5" or so it's holding on to the cat just fine.
                                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

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