Can someone explain to me the attraction of a lumpy cam?

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  • BlackbirdM3
    R3VLimited
    • Jan 2012
    • 2766

    #16
    I hate the sound of V8s, especially american ones. They sound like motor boats. I run a huge cam, lots of lift, overlap and duration on the datsun and it idles pretty smoothly. I must say that a well tuned straight 6 with a big cam and good exhaust is one of the best sounds ever. Smooth like ripping silk.

    Will
    '59 Alfa Romeo 101.02 Giulietta Sprint
    '69 Alfa Romeo 105.51 1750 GTV (R.I.P)
    '69 Datsun 2000 roadster Vintage race car
    '88 BMW M3

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    • Rc 415
      Mod Crazy
      • Jun 2011
      • 723

      #17
      I love choppy cams and v8's
      Your signature picture has been removed since it contained the Photobucket "upgrade your account" image.

      1987 Delphin 325IS
      LS1•TSP 228r• condor speed shop solid subframe, diff, fcab, mounts•Airlift air ride suspension•e36 ps rack•Eibach sways•16" Spal puller•bbk 310mm front & rear•17" BBS RS•
      Build Thread
      1993 alpine 2 325IC
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      • phreshkid
        R3V Elite
        • May 2009
        • 4655

        #18
        I ran an aggressive cam in the ol' m10 for the 1600 and it was slightly lopey. I loved it. It really woke that engine up over 3k rpms. That car really moved.
        world renown Harry Potter expert
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        • LJ851
          R3V OG
          • Nov 2010
          • 7918

          #19
          because racecar?







          I love the sound of a large overlap cam. A properly built high performance engine is a symphony to my ears at idle, revving and full song. I do have favorite cylinder counts and crank shapes.

          Go to a Top Fuel event and listen to a top fuel car warm up in the pits. If your soul doesn't stir when they switch over from alcohol to nitro, you might not have one.
          Lorin


          Originally posted by slammin.e28
          The M30 is God's engine.

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          • IronFreak
            No R3VLimiter
            • Dec 2012
            • 3702

            #20
            Originally posted by LJ851
            because racecar?







            I love the sound of a large overlap cam. A properly built high performance engine is a symphony to my ears at idle, revving and full song. I do have favorite cylinder counts and crank shapes.

            Go to a Top Fuel event and listen to a top fuel car warm up in the pits. If your soul doesn't stir when they switch over from alcohol to nitro, you might not have one.
            I was going to reference top fuel as well. I remember my first time in the pits, 13 years old, heartland park in KS. Standing right behind the dragster, they cranked that monster over and my balls dropped, I had become a man. They switched to nitro and I could feel the oxygen getting sucked out of my own lungs, the pounding of those cylinder about crushed my chest cavity.

            I'll never forget that experience. Overlapping lopey ass cams are the songbird of HP, embrace it!

            #Merica!
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            Rebellion Forge Custom Fabrication

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            • phreshkid
              R3V Elite
              • May 2009
              • 4655

              #21
              The M30 is God's engine.
              world renown Harry Potter expert
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              • LJ851
                R3V OG
                • Nov 2010
                • 7918

                #22
                Originally posted by phreshkid
                The M30 is God's engine.




                Lorin


                Originally posted by slammin.e28
                The M30 is God's engine.

                Comment

                • JasonC
                  Site Manager
                  • Aug 2006
                  • 14451

                  #23




                  LSx's have kind of a higher pitch sound to them, I prefer the deeper traditional sound of the older V8s. Don't get me wrong, if I here a LSx come thumping in, i'll turn my head and smile ;D






                  With 4 poppers and 6 bangers, i'll still be grinning if they are cammed up. Even my Corvair has a small cam



                  When they are smooth and quiet, it's kind of boring to me....

                  1992 BMW 325iC
                  1978 Chevrolet Monte Carlo
                  1965 Chevrolet Corvair Monza 140hp

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                  • F34R
                    sLaughter
                    • May 2009
                    • 12385

                    #24
                    I had a cammed m20...it was not much fun down low, but mid to up top it was INSANE! Lumpy cams= fun!
                    ~ Puch Cafe. ~ Do business? feedback ~ Check out my leather company ~

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                    • george graves
                      I waste 90% of my day here and all I got was this stupid title
                      • Oct 2003
                      • 19992

                      #25
                      Well crap. I guess I need to turn in my "man card". ;)
                      Originally posted by Matt-B
                      hey does anyone know anyone who gets upset and makes electronics?

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                      • rturbo 930
                        R3VLimited
                        • Dec 2005
                        • 2610

                        #26
                        The Camaro sounds like it might actually go somewhere if you put your foot down. The 540i just sounds lame.

                        Love a lopey idle. My Z has a cam in it. It has a lumpy idle, but runs smooth overall, and really comes on after 3000rpm. Just wish I had a decent car to put it in so I could let it stretch its legs.

                        Not mine, but it has the same cam, and similar work done:

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                        • mrsleeve
                          I waste 90% of my day here and all I got was this stupid title
                          • Mar 2005
                          • 16385

                          #27
                          Originally posted by goarmy
                          The sound has more to do with firing order and degrees of rotation between firings, their V8's fire at every 90 degrees.
                          This made me chuckle. You should hear a 60* V6 with a bit of work done to it even with minimal overlap lope and rumble at idle.... LOL I have seen an LQ1 throw a fireball out WG loud pipe about 3 feet long when the the throttle plates slam closed...

                          Firebird knows exactly what I am talking about..... ;)


                          Lopey Cam is the song of high performance no more no less, sadly I have been away from such things so long, I feel as if I have forgotten it all
                          Last edited by mrsleeve; 06-30-2015, 03:48 PM.
                          Originally posted by Fusion
                          If a car is the epitome of freedom, than an electric car is house arrest with your wife titty fucking your next door neighbor.
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                          • Fusion
                            No R3VLimiter
                            • Nov 2009
                            • 3658

                            #28
                            Why is an engine 'built' rather than 'rebuilt', 'custom', or 'upgraded'.
                            All engines are built.

                            Always lol'd at the 'built not bought' slogan too. Like did you buy the cam or make it yourself by pouring moulten iron in your garage and then lathing it to spec?

                            /rant, thanks for your attention

                            Comment

                            • Exodus_2pt0
                              R3V Elite
                              • Dec 2011
                              • 5943

                              #29
                              Originally posted by Fusion
                              Why is an engine 'built' rather than 'rebuilt', 'custom', or 'upgraded'.
                              All engines are built.

                              Always lol'd at the 'built not bought' slogan too. Like did you buy the cam or make it yourself by pouring moulten iron in your garage and then lathing it to spec?

                              /rant, thanks for your attention
                              Do you do your own work? Or do you pay someone else to do it for you? Not talking shit, just an honest question that could shed light on why you feel the way you do.

                              Also, Molten.
                              No E30 Club
                              Originally posted by MrBurgundy
                              Anyways, mustangs are gay and mini vans are faster than your car, you just have to deal with that.

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                              • LJ851
                                R3V OG
                                • Nov 2010
                                • 7918

                                #30
                                Originally posted by Fusion
                                Why is an engine 'built' rather than 'rebuilt', 'custom', or 'upgraded'.
                                All engines are built.


                                Bullshit.

                                Many people can and do assemble an engine, properly building an engine is a whole other thing.
                                Lorin


                                Originally posted by slammin.e28
                                The M30 is God's engine.

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