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Los ingenieros de BMW orinaban los cilindros de los blocks de formula 1 ? wtf ?

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  • Los ingenieros de BMW orinaban los cilindros de los blocks de formula 1 ? wtf ?

    Bueno, encontre este mito sobre el fabuloso motor 1.5 litros y 1.500 cv de Formula 1, y lo queria compartir, la teoria dice que los altos niveles de amoniaco en la orina, proveen nitrogeno, sintetizando mucho....que opinan ?





    Engine Myth: Urinating on Cylinder Block Improves Durability


    by Mike Magda

    posted Yesterday in News


    (4) Comments

    This story has been around for years and was popularized for mainstream audiences in 2004 when a British documentary-style TV show titled “Massive Engines” recounted the development of BMW’s famed 1,500-horsepower 1.5-liter Formula 1 engine in the ’80s.

    As the legend goes, BMW engineers wanted to build their F1 engine around the venerable M10 4-cylinder architecture, which was introduced in the ’60s. This strategy could be used to help market the company’s production vehicles by demonstrating the durability of OEM components.


    But engineers in those days knew that a new factory casting could be suspect in surviving the forces generated by 11,000 rpm and 50-plus pounds of boost in race trim with reportedly close to 80 pounds for qualifying. (That’s where the 1,500-horsepower numbers come from, and there are stories that BMW welded the wastegates closed for qualifying!). Fears of core shift, porosity and thin walls were always a concern to engine builders when using high-volume-production castings.


    So, the engineers adapted a policy to use only blocks that had been driven around a 100,000 miles with no problems. The theory being, any problems would have surfaced by then, and the blocks would be suitable for the additional machining needed for racing.

    BMW even left the blocks outside to weather the elements for a few months, again with the goal of “seasoning” the block to eliminate any internal casting stress and stabilize all the dimensions.

    And finally, BMW engineers reportedly relieved themselves on the blocks, either as a sign of good luck or there was a scientific premise that warranted testing. After all, ancient sword makers used to quench hot metal in urine, and sometimes blood, as a way to treat

    gt;




    Whether any of the individual tactics actually contributed to the block’s durability, the overall strategy certainly worked.

    The BMW M12/13 engine is regarded as one of the greatest engines ever in Formula 1 history, powering teams from Bennetton, Brabham and Arrows. The engine became obsolete in 1988 when F1 banned turbos.

    But now that Formula 1 is moving to 1.6-liter turbocharged V6 engines for 2014 (with significant boost and fuel restrictions), there is renewed interest in the BMW history and the fables associated with the engine and turbo era. All or parts of the “Massive Engines” episode with Chris Barrie have been picked up by a number YouTube channels, and the forum boards routinely revive the myth when discussing block choice and preparation.

    It was even discussed in depth on the F1Technical board, offering a theory that the high levels of ammonia in urine provide nitrogen — and you’ve heard of nitriding.





    In fact, the argument of seasoned vs. new when selecting iron cylinder blocks has been around since the aftermarket started providing product.

    There were even caveats for selecting used blocks; such as, never use a block pulled from a cop car or taxi as they didn’t cool down often enough to be worthwhile. Today, there have been considerable advances in casting methods, temperature control and metallurgy — in addition to near-perfect machining operations — that working with seasoned blocks is no longer necessary in racing. Teams may experiment with additional treatments, such as cryogenics or running hot oil through the block during honing, but there’s no need to scour junkyards anymore and certainly no reason to schedule restroom breaks outside the shop.


    fuente: http://www.enginelabs.com/news/engin...es-durability/
    Last edited by Proctologo; 28-08-2013, 08:28.

  • #2
    Re: Los ingenieros de BMW orinaban los cilindros de los blocks de formula 1 ? wtf ?

    de la misma fuente:



    Comment


    • #3
      Re: Los ingenieros de BMW orinaban los cilindros de los blocks de formula 1 ? wtf ?

      Junto un buen rato y le echo terrible meo al block del Williams.

      Comment


      • #4
        Re: Los ingenieros de BMW orinaban los cilindros de los blocks de formula 1 ? wtf ?

        1.500 cv un 1.5? Zarpadooo
        1 cv x cm3, que locura!!

        Comment


        • #5
          Re: Los ingenieros de BMW orinaban los cilindros de los blocks de formula 1 ? wtf ?

          Originally posted by Rodri147 View Post
          1.500 cv un 1.5? Zarpadooo
          1 cv x cm3, que locura!!

          y fijate en cuantos cilindros....

          Comment


          • #6
            Re: Los ingenieros de BMW orinaban los cilindros de los blocks de formula 1 ? wtf ?

            Vos pensas que los alemanes van a mear el block de un F1 sin saber que le hacen bien o mal??? Los alemanes no hacen nada al pedo.

            Cuando meas gran parte es urea. La urea aumenta la corrosión del acero. Lo meaban y lo dejaban afuera.....

            Lindo tufo y me imagino que luego lo iba a buscar el que lo había meado jaja.

            Copio info de inet para soportar mis dichos:

            Table 1. Effect of dissolved oxygen content on the corrosion rate of stainless steel alloys in urea
            solution.
            O2, ppm Corrosion rate, mm/year
            UNS No 31603 UNS No 31050
            0,5 30-40 active 1 10 active 1
            1 30-40 active 1 10 active 2
            3 30-40 active 1 0,03 passive 2
            5 0,12 passive 2 0,03 passive 2
            7,3 0,12 passive 2 0,03 passive 2
            Note: 1: Active corrosion, 2: The steel is in the passive state.

            The urea synthesis process is helped by an increase in temperature, which on the other hand however will also increase the corrosion rate of metallic materials.




            Un abrazo!

            Comment


            • #7
              Re: Los ingenieros de BMW orinaban los cilindros de los blocks de formula 1 ? wtf ?

              Comentario al margen.
              Manejar un fórmula en clasificación con ese pedazo de turbo... pedazo de lag.. y la wastegate trabada.. JAJAJA.

              Comment


              • #8
                Re: Los ingenieros de BMW orinaban los cilindros de los blocks de formula 1 ? wtf ?

                Originally posted by Ibiza20v View Post
                Vos pensas que los alemanes van a mear el block de un F1 sin saber que le hacen bien o mal??? Los alemanes no hacen nada al pedo.

                Cuando meas gran parte es urea. La urea aumenta la corrosión del acero. Lo meaban y lo dejaban afuera.....

                Lindo tufo y me imagino que luego lo iba a buscar el que lo había meado jaja.

                Copio info de inet para soportar mis dichos:

                Table 1. Effect of dissolved oxygen content on the corrosion rate of stainless steel alloys in urea
                solution.
                O2, ppm Corrosion rate, mm/year
                UNS No 31603 UNS No 31050
                0,5 30-40 active 1 10 active 1
                1 30-40 active 1 10 active 2
                3 30-40 active 1 0,03 passive 2
                5 0,12 passive 2 0,03 passive 2
                7,3 0,12 passive 2 0,03 passive 2
                Note: 1: Active corrosion, 2: The steel is in the passive state.

                The urea synthesis process is helped by an increase in temperature, which on the other hand however will also increase the corrosion rate of metallic materials.




                Un abrazo!
                Excelente Ibiza!

                Comment


                • #9
                  Re: Los ingenieros de BMW orinaban los cilindros de los blocks de formula 1 ? wtf ?

                  no te entendi, Ibiza. No hice una valoracion , sino que se reporte el hecho de que los ingenieros orinaban los blocks, los dejaban al aire libre durante meses, o inclusive usaban blocks con 100 mil millas para competicion. Eso me llamo mucho la atencion (las 3 formas)....aunque el orinarlas era como una especie de ritual de Buena suerte....
                  Last edited by Proctologo; 28-08-2013, 09:58.

                  Comment


                  • #10
                    Re: Los ingenieros de BMW orinaban los cilindros de los blocks de formula 1 ? wtf ?

                    estos aportes al foro son excelentes!!

                    Comment


                    • #11
                      Re: Los ingenieros de BMW orinaban los cilindros de los blocks de formula 1 ? wtf ?


                      " ....But engineers in those days knew that a new factory casting could be suspect in surviving the forces generated by 11,000 rpm and 50-plus pounds of boost in race trim with reportedly close to 80 pounds for qualifying. (That’s where the 1,500-horsepower numbers come from, and there are stories that BMW welded the wastegates closed for qualifying!). Fears of core shift, porosity and thin walls were always a concern to engine builders when using high-volume-production castings.


                      So, the engineers adapted a policy to use only blocks that had been driven around a 100,000 miles with no problems. The theory being, any problems would have surfaced by then, and the blocks would be suitable for the additional machining needed for racing.

                      BMW even left the blocks outside to weather the elements for a few months, again with the goal of “seasoning” the block to eliminate any internal casting stress and stabilize all the dimensions.

                      And finally, BMW engineers reportedly relieved themselves on the blocks, either as a sign of good luck or there was a scientific premise that warranted testing. After all, ancient sword makers used to quench hot metal in urine, and sometimes blood, as a way to treat

                      Comment


                      • #12
                        Re: Los ingenieros de BMW orinaban los cilindros de los blocks de formula 1 ? wtf ?

                        Originally posted by Proctologo View Post
                        no te entendi, Ibiza. No hice una valoracion , sino que se reporte el hecho de que los ingenieros orinaban los blocks, los dejaban al aire libre durante meses, o inclusive usaban blocks con 100 mil kilometros para competicion. Eso me llamo mucho la atencion (las 3 formas)....
                        De los blocks con 100.000 millas entendí como que usaban esos porque estaba probada la duración.

                        Comment


                        • #13
                          Re: Los ingenieros de BMW orinaban los cilindros de los blocks de formula 1 ? wtf ?

                          me cago en el block, digo me meo....

                          Comment


                          • #14
                            Re: Los ingenieros de BMW orinaban los cilindros de los blocks de formula 1 ? wtf ?

                            La corrosión y los ciclos térmicos alivian las tensiones que quedan dentro del material cuando se lo funde y enfria.

                            El meo por la urea es un acelerador de la corrosión.

                            Por otro lado las 100.000 millas era para asegurarse que ese motor había pasado por varios ciclos térmicos (enfriarse - calentarse) y como un control de calidad implícito por fallas mallores.

                            Esto pasa siempre. Por ejemplo, si uno cambia los resortes de válvulas y los deja con el motor en ralenti unos 30min y los deja enfriar luego es raro que pierdan carga como si pasaría si uno con el resorte en frio y sin uso anterior le pega lo tira en el motor y lo pasa de vueltas.

                            Un abrazo!

                            Comment


                            • #15
                              Re: Los ingenieros de BMW orinaban los cilindros de los blocks de formula 1 ? wtf ?

                              Buena data Ibiza, gracias.

                              Comment

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