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Does delta 272 cam work with EX valvesprings?

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    Does delta 272 cam work with EX valvesprings?

    I had some issues with KMS valvesprings that ill get into later....
    I ran my delta 272 with f22a1 valvesprings without a problem to 6800rpm. Does anyone here run this cam with f22a6 valvesprings?
    Now if i'm correct when i talked to a pro race "biso" with his all Motor 400hp F22a1 block, he told me he was using stock F22a1 valvesprings to 9000rpm. I want to rev my new motor out to atleast 7000....so i dont think thats a problem. Biso told me he runs an exospeed camshaft though...
    12.5 at 114.6mph 15psi
    11.7 and 11.5 20.5psi
    F22a1
    60-1 td06h turbo
    Darton mid sleeves
    85.5 wiseco 8.8:1 forged pistons
    Crower pro billet rods
    Custom ported head.
    KMS valves
    F23 headgasket
    ARP H23 headstuds
    H23 upper intake manifold
    F22a6 lower intake manifold
    Intake manifold is gutted
    AEM EMS 1040u
    FIC 850cc injectors
    Walbro 255 pump
    H23 manual trans
    Prelude shifter assembly
    Forbidden short throw
    Nitrous Express Kit installed, never used on this motor

    #2
    Rocket says D16 springs are good until easily 8-9k...

    and they are softer than F22 springs...

    I ran mine to 7k pretty regularly and they were all still square when I pulled everything apart...

    The 272 only has like 10.5mm of lift...

    Are A6 springs supposedly stiffer or what? Do they carry a different part # than A1 & A4 springs...??? If the urban legend of the mysterious A6 cam is true... then A6 springs might give you a teeny tiny margin of comfort...

    Is the problem with the KMS springs the one you had before? or this a new thing? The replacements they sent didn't work?
    Last edited by ZigenBallZ; 05-21-2005, 01:30 AM.
    RIP Lifsatrip7

    ...

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      #3
      From what I know, the 272 does work with EX valvesprings. A couple people on here are running 272's with their stock valves. Although, it is recommended to upgrade, it is not completely necessary unless you plan on revving much higher than normal is what I have understood. I am running the 260 regrind on my f22a6 springs, but I did adjust them when I installed, most people don't do that.
      My Member's Ride Thread, Comments Welcome!!!

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        #4
        You adjusted your springs? Or did you adjust your valve lash?

        Not trying to be an ass, but if you can adjust the springs I've never heard of it.
        -Jay

        Comment


          #5
          Originally posted by SteveB
          You adjust installed height of valve springs with hardened shims.
          That's exactly what you do. I didn't do it myself though, I had the help of another member to adjust, it was my first time, I recommend doing the same if you are not entirely sure.
          Last edited by Nycxeracer; 05-21-2005, 12:08 PM.
          My Member's Ride Thread, Comments Welcome!!!

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            #6
            Originally posted by SteveB
            Not trying to be an ass, but you're 19 years old, there's probably lots of things you haven't heard of.

            You adjust installed height of valve springs with hardened shims.

            sorry to be rude bluejayde i hate you and so does everyone else your so cocky my lord are you cocky


            btw what everyone else said on the springs
            Last edited by micksf22accord; 05-21-2005, 12:13 PM.


            Dynamic racing

            Look out for 4 point cb7 strut bars for dohc!!!

            Originally posted by deevergote
            bleh... i just put like 5 ounces of vodka in a 12 oz cup of mango iced tea...

            Comment


              #7
              Originally posted by micksf22accord
              sorry to be rude bluejayde i hate you and so does everyone else your so cocky my lord are you cocky
              that is rude, and don't start whoring this thread just to flame each other. edit that before he sees it micks
              Shift_BOOST

              BOOM!

              Comment


                #8
                i have a 272 on stock f22a1 springs, just adjusted the valvle lash, and she runs good, now i just need to adjust the timing a little! but i will when the turbo gets put on! oh yeah and after the engine is rebuilt totally!

                Comment


                  #9
                  Originally posted by micksf22accord
                  sorry to be rude bluejayde i hate you and so does everyone else your so cocky my lord are you cocky


                  btw what everyone else said on the springs
                  If you were sorry you wouldn't say it. You can't speak for everyone else, either.

                  SteveB is correct, I haven't heard of everything, that's why I made it VERY clear that I could be wrong.

                  Micks, I couldn't care less what you think, as the opinion of an idiot doesn't matter to me. There's no reason to whore up this post with what could have been done through PM, or through another one of your useless threads. I apologize to the threadstarter for whoring this thread, I'll probably delete the post later.
                  -Jay

                  Comment


                    #10
                    Originally posted by SteveB
                    Not trying to be an ass, but you're 19 years old, there's probably lots of things you haven't heard of.

                    You adjust installed height of valve springs with hardened shims.
                    Alright, I can accept that I was ignorant. What would putting washers in do besides shortening spring travel?

                    I guess I just don't understand the concept. Care to explain?
                    -Jay

                    Comment


                      #11
                      I'm still confused, why would you cut the valves or the seats? They work fine with the cam in stock form, why mess with it? Sounds like a ghetto way to do things.
                      -Jay

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