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lopo cam specs vs ho?

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    lopo cam specs vs ho?

    Does anybody knows if lopo cam has the same duration and lsa as a ho cam (I know that ho has higher lift)
    “Cars are the only thing on earth that will beat you, break you, make you bleed, make you cry, spend all your money, spend all your time, not work and not care that you will love more, the more they abuse you.” -Anonymous

    #2
    No. Ho has more duration, by at least 5 degrees at 0.050

    85 4 door 351 Civi Crown Victoria - Summer daily driver, sleeper in the making, and wildly inappropriate autocross machine
    160KMs 600cfm holley, shorty headers, 2.5" catted exhaust, 255/295 tires, cop shocks, cop swaybars, underdrive pulley, 2.73L gears.
    waiting for install: 3.27's, Poly bushings, boxed rear arms, 2500 stall converter, ported e7's, etc

    06 Mazda 3 hatch 2.3L 5AT (winter beater that cost more than my summer car)

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      #3
      HO is something like 210/210 @ .050 and .440/.440 lift though I think '88. '89-up added a little duration to either the intake or the exhaust.

      Lowpo specs seem to be pretty hard to come by, since all the ones I've seen seem to be for a lowpo flat cam, when the cam in question is usually a lowpo roller. If I were really ambitious I'd stick my old lowpo roller in a block and measure it ....

      Advertised specs for replacement lowpo flat cams seem to usually be in the 190 @.050 range. Bit less lift too. Consider that it's intended to be run in a small engine AND run super-smooth even with lots of intake and exhaust restrictions AND make peak horsepower at something like 3500rpm ....


      Wait, I'm an idiot typing all that. Have a search for my thread on SpeedPro replacement cam specs and part numbers.
      Last edited by 1987cp; 11-30-2011, 08:01 PM.
      2012 Mazda5 Touring | Finally working on the LTD again!

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        #4
        Does anyone know what the power band range (rpm) is for a 1989 HO cam in a 91 GM AOD w/2.73?
        It seems to really start pulling at 25 mph up to about 65 mph.
        90 Colony Park LS with GT 40 heads and intake. HO cam, 65 MM TB, 67 MM EGR spacer. Has a 75 MM Pro Flow mass air sensor. Borla XS mufflers. 3L55. Shift kit, 2000 stall Tq convertor...Bilstein shocks, front and rear sway bars.
        90 Colony Park LS 64,000 miles all original. 3L55 tow package....front and rear sway bars.
        91 Grand Marquis GS....HO motor..Bilstein shocks poly bushings and police swaybars. This one handles the best.
        70 Torino Squire with M code 351 Cleveland 3.00 has Magnaflow mufflers. Hidden headlights and power windows. All original

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          #5
          2500-5200 rpm IIRC for the HO cam in stock HO engine.

          as for speeds... that moment you feel the sudden rush in acceleration... that's about 2500RPM... If you're holding first... then yeah... 55-60mph would probably be your shift point so the trans would actually kick into 2nd a little under 65. Without a tach though, there's no real good way to know.

          Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
          rides: 93 Crown Vic LX (The Red Velvet Cake), 2000 Crown Vic base model (Sandy), 2003 Expedition (the vacation beast)

          Originally posted by gadget73
          ... and it should all work like magic and unicorns and stuff.

          Originally posted by dmccaig
          Overhead, some poor bastards are flying in airplanes.

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            #6
            the 5.0L "Base Engine" camshaft (E5ZE-AA, F1AE-AA) has the following specifications.

            .379
            .395
            244
            256


            Read here for the original thread; http://www.crownvic.net/ubbthreads/u...9566#Post29566
            2003 Town Car Signature - 3.27 RAR, Dual exhaust and J-mod - SOLD 9/2011
            89 Crown Victoria LX HPP -- SOLD 9/2010
            88 Grand Marquis LS - The Original -- Totaled 5/2006


            I rebuild AOD/AODE/4R70W/4R75E transmissions....Check out my Facebook page: https://www.facebook.com/pages/North...48414635312478

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              #7
              Ford CV/GM is 244/256 gross duration and .378/.395 lift

              Mustang HO Ford cam is 266/266 gross duration and .445/.445 Lift

              Explorer and truck 5.0/5.8 is 256/266 duration and .396/.448 lift

              Lightning Flat Tappet Melling is SYB-30 197/209 @ .050 duration and .416/.443 lift

              5.8 HO Truck flat tappet cam is Melling SYB-35 206/221 @ .050 and .445/.453 lift

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                #8
                Found the specs for the lopo cam: http://forums.corral.net/forums/5-0-...-5-0l-cam.html
                “Cars are the only thing on earth that will beat you, break you, make you bleed, make you cry, spend all your money, spend all your time, not work and not care that you will love more, the more they abuse you.” -Anonymous

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                  #9
                  Originally posted by 90ltd View Post
                  guess you never bothered to read my response when you first posted this?

                  From post #6 --- the 5.0L "Base Engine" camshaft (E5ZE-AA, F1AE-AA) has the following specifications.

                  .379
                  .395
                  244
                  256
                  2003 Town Car Signature - 3.27 RAR, Dual exhaust and J-mod - SOLD 9/2011
                  89 Crown Victoria LX HPP -- SOLD 9/2010
                  88 Grand Marquis LS - The Original -- Totaled 5/2006


                  I rebuild AOD/AODE/4R70W/4R75E transmissions....Check out my Facebook page: https://www.facebook.com/pages/North...48414635312478

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                    #10
                    Man were talking about same thing. Its just the numbest you listed represent actual valve lift. And the numbers posted in the link show true cam lift.
                    “Cars are the only thing on earth that will beat you, break you, make you bleed, make you cry, spend all your money, spend all your time, not work and not care that you will love more, the more they abuse you.” -Anonymous

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