Why round exhaust pipe?

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  • dieselgeek
    Legendary BangShifter
    • Oct 2007
    • 9809

    #286
    This isn't "bigger man" and I certainly am not "fallowing" you. I'm letting everyone else here know that you do not know what you are preaching because you have never tested exhaust on a running engine.

    Now, read carefully and educate yourself:
    I've completed over 3000 Engine Dynamometer Tests on naturally aspirated engines ranging from "street/strip" applications to full bore, top tier racing applications. THREE THOUSAND. How do I keep track of that? by logging data on each pull and using a naming convention that lets me easily count the number of types of tests I ran. Much of that is directly testing exhaust trying different headers, collector and runner dimensions, then tracking our data and reporting back what works. We've also tested cam profiles, compression ratios, valvetrain "lofting," and a number of other engine performance related subjects TO SEE IF WHAT'S SAID ON THE INTERNET IS ACCURATE (most of it is not). I've tested Vizard's approaches including two different groups who tried DV's "terminator chamber" design on headers trying to fit an optimized exhaust into an actual chassis.

    Setting up a real engine, in a real dyno cell, and making real tests with real exhausts (you should see how many different exhaust designs hang on the wall at Barton Racing, a real shop ya know?) is not "keyboard racing" and it's not simply reading to everyone about what I read in a book I bought at Barnes and Noble for $23.

    If you can't tell the difference, or are unwilling to accept that, then fine. You can talk out your rectum about any topic you want here because it's clear no one takes you seriously. But do NOT open your mouth telling others what I do, or do not do, especially when you don't have the slightest clue what you're talking about.

    Tell me all about your experiences when YOU perform some kind of test on a running engine. Until then, you're a blathering clown simply wasting bandwidth on this forum.
    www.realtuners.com - catch the RealTuners Radio Podcast on Youtube, Facebook, iTunes, and anywhere else podcasts are distributed!

    Comment

    • TC
      Banned
      • Nov 2007
      • 11805

      #287
      Originally posted by dieselgeek View Post
      This isn't "bigger man" and I certainly am not "fallowing" you. I'm letting everyone else here know that you do not know what you are preaching because you have never tested exhaust on a running engine.
      I intimidate you that much, that is funny!!!!!!, I also love that all I have to do is post something, knowing that it'll make you respond....... Just love that type of power..........

      And running an engine on a dyno doesn't mean you know how to build an engine, it just means you know how to pull a lever and watch numbers on a screen and press buttons on a laptop...... KeyBoard Hot Rodder Indeed.........
      Last edited by TC; September 7, 2012, 08:43 AM.

      Comment

      • dieselgeek
        Legendary BangShifter
        • Oct 2007
        • 9809

        #288
        Originally posted by TC View Post
        I intimidate you that much, that is funny!!!!!!, I also love that all I have to do is post something, knowing that it'll make you respond....... Just love that type of power..........
        That's not power, or intimidation: that's simply being an annoying idiot. What's it feel like to be on a forum where literally no one wants you here? Keep hassling people like me and you'll end up like Stich, without a place to talk about how you're such an awesome "hotrodder" who couldn't change a spark plug if life depended on it.

        Don't you have a teenage kid? put him on here and we'll walk him through how to finish his Megasquirt project and get at least one of your nonrunning piles to move under it's own power. After all, if a ten year old can assemble and tune a MS, then I'm sure your teenager can do it. And think about it, he'll actually demonstrate to you what a running engine sounds like! :-)
        Last edited by dieselgeek; September 7, 2012, 08:44 AM.
        www.realtuners.com - catch the RealTuners Radio Podcast on Youtube, Facebook, iTunes, and anywhere else podcasts are distributed!

        Comment

        • TC
          Banned
          • Nov 2007
          • 11805

          #289
          See got you to respond in less than 10 seconds, you must just wait for me to respond just so you can jump on me, what a troll........ You just don't even realize how much power I have over you, I love it.........

          Comment

          • chevy3100truck
            Hero BangShifter
            • Apr 2011
            • 318

            #290
            Originally posted by TC View Post
            Vizard has seen extreme HP drops after installing glass packs on a car, which is a straight through flow type of muffler, reason why??, it effectively changed the length of the collector and thus changed the exhaust pulse and the engine no longer moved the air as efficiently........
            TC, you just need to shut up, if you think that glasspacks changing the collector length is whole reason for a drop in power you obviously do not understand fluid dynamics one bit. I'll give you a hint - yes you can see straight through glass packs, but are they smooth inside? Think about it for a while, or maybe go read a book on physics, fluid dynamics etc. so that your "outside the box" theories can be corrected by science. I think it's pretty well known on here that you never will complete anything and just like to have "out of the box theories" for the "look at me, I'm smarter than everyone here" effect, even though it has the complete opposite effect.
            Last edited by chevy3100truck; September 7, 2012, 09:06 AM.

            Comment

            • dieselgeek
              Legendary BangShifter
              • Oct 2007
              • 9809

              #291
              Lmao
              www.realtuners.com - catch the RealTuners Radio Podcast on Youtube, Facebook, iTunes, and anywhere else podcasts are distributed!

              Comment

              • TC
                Banned
                • Nov 2007
                • 11805

                #292
                see made you respond again......

                Comment

                • TC
                  Banned
                  • Nov 2007
                  • 11805

                  #293
                  Originally posted by chevy3100truck View Post
                  TC, you just need to shut up, if you think that glasspacks changing the collector length is whole reason for a drop in power you obviously do not understand fluid dynamics one bit. I'll give you a hint - yes you can see straight through glass packs, but are they smooth inside? Think about it for a while, or maybe go read a book on physics, fluid dynamics etc. so that your "outside the box" theories can be corrected by science. I think it's pretty well known on here that you never will complete anything and just like to have "out of the box theories" for the "look at me, I'm smarter than everyone here" effect, even though it has the complete opposite effect.
                  Then tell me why when he tested a FlowMaster, it gave him the same HP output as open headers.......... You would think the FlowMaster would be more of a restriction than the straight through design of a glass pack......

                  But it has nothing to do with that, it has to do with tuning the pulse wave......
                  Last edited by TC; September 7, 2012, 09:18 AM.

                  Comment

                  • dieselgeek
                    Legendary BangShifter
                    • Oct 2007
                    • 9809

                    #294
                    Originally posted by TC View Post
                    see made you respond again......
                    No, I'll post in here all day without you being around. Each additional post you make, is one less person who wants you to be here.

                    Meanwhile, why don't you do at least one of the things you bragged about on here? You know, Easy EFI tuning with HPT or megasquirt? Weren't you going to open up a tuning business, or was that before you got afraid of using a computer for something other than pretending to know something on the internet?

                    Sure would like to see you get off your ass and do SOMETHING with a hot rod. ANYTHING at this point, would be good. Right now you just look completely foolish for everything you claimed you were going to do, but every single time wussed out. What's the point of lecturing us on Exhaust tuning when you're not ever going to do it?
                    www.realtuners.com - catch the RealTuners Radio Podcast on Youtube, Facebook, iTunes, and anywhere else podcasts are distributed!

                    Comment

                    • chevy3100truck
                      Hero BangShifter
                      • Apr 2011
                      • 318

                      #295
                      Originally posted by TC View Post
                      Then tell me why when he tested a FlowMaster, it gave him the same HP output as open headers.......... You would think the FlowMaster would be more of a restriction than the straight through design of a glass pack......

                      But it has nothing to do with that, it has to do with tuning the pulse wave......
                      Again, you like to read so much, buy a book and learn something. Big difference between a glasspack and a straight pipe, and suprisingly enough a flowmaster style muffler is LESS RESTRICTION than 99% of the glasspack mufflers out there. Read a bit about fluid/gas flow & learn something.

                      Comment

                      • chevy3100truck
                        Hero BangShifter
                        • Apr 2011
                        • 318

                        #296
                        BTW, the flowmaster will mess with the pulse wave as well (in case you can't figure that out)

                        Comment

                        • JeffMcKC
                          Legendary BangShifter
                          • Oct 2007
                          • 7024

                          #297
                          Drama
                          2007 SBN/A Drag Week Winner & First only SBN/A Car in the 9's Till 2012
                          First to run in the .90s .80s and .70's in SBN/A
                          2012 SSBN/A Drag Week Winner First in the 9.60's/ 9.67 @ 139 1.42 60'
                          2013 SSBN/A Drag Week, Lets quit sand bagging, and let it rip!

                          Comment

                          • SuperBuickGuy
                            No Life Outside BangShift.com
                            • Jan 2008
                            • 32272

                            #298
                            Originally posted by chevy3100truck View Post
                            Again, you like to read so much, buy a book and learn something. Big difference between a glasspack and a straight pipe, and suprisingly enough a flowmaster style muffler is LESS RESTRICTION than 99% of the glasspack mufflers out there. Read a bit about fluid/gas flow & learn something.
                            so why not simply answer "a glasspak flows less because it creates a low pressure area inside the muffler?" then you would say "because the pipe is no longer smooth, the exhaust slows down and creates a pressure difference, that difference allows the sound to collide with itself and cancels some of the noise out." and finally you'd close with "that noise cancellation creates restriction in the exhaust thereby slowing the exhaust down. The flowmaster uses a difference principle and causes LESS restriction because the exhaust flows through the muffler and the sound waves bounce inside the muffler. Again, those sound waves cancel some of the other sound waves out thus reducing the sound."

                            Or don't you know that basic principle? seriously, at least TC puts out an opinion to be discussed, right or wrong, it helps others understand the mechanics of engines. I'd even venture to guess that the attackers have heard that opinion before and had someone with more patience then they have (a grownup) explain why that principle is right, wrong, or incomplete. Others resort to personnal attacks, which seriously makes people question whether or not they have any idea about what they're talking about. Still others have no clue and have read another article which tells them that a flowmaster doesn't restrict flow - those people are known as Trolls. Don't be a troll.

                            Oh yes, to those who think they're the judge of what's on the net - if you're stupid enough to believe everything you read on the net, then you deserve the result you get.
                            Last edited by SuperBuickGuy; September 7, 2012, 10:13 AM.
                            Doing it all wrong since 1966

                            Comment

                            • jcharliem
                              Superhero BangShifter
                              • Feb 2008
                              • 1148

                              #299
                              Originally posted by dieselgeek View Post
                              ...What's it feel like to be on a forum where literally no one wants you here? Keep hassling people like me and you'll end up like Stich, without a place to talk about how you're such an awesome "hotrodder" who couldn't change a spark plug if life depended on it...
                              Frankly, I'm a bit surprised the guys who control this theater tolerate his non-sense by allowing him to continue to muck this place up. He's a few clicks below 'ol Stich. TC has two things going for him: 1) he's consistent, and 2) his posts are laughable (they're typically re-treads from somewhere else). Obviously, he doesn't see himself as others do.
                              Nitrous, baby!!...

                              Comment

                              • MR P-BODY
                                Superhero BangShifter
                                • Apr 2012
                                • 2359

                                #300
                                I gave the info I seen on headers and I believe I gave a pretty good reason why
                                to primary lengths and why they should be equal... some may disagree and thats
                                fine... since all I'm doing is saying it... if I could have grabbed all my test data
                                before I retired I would have posted it.... but I cant(that data was not allowed
                                to go with me)....... have fun boys
                                EDIT
                                I got to get back out to the shop to finish putting my engine together...
                                I want to be on the dyno on Wednesday
                                Last edited by MR P-BODY; September 7, 2012, 10:36 AM.

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