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Rpm

Discussion in 'The Hokey Ass Message Board' started by Hubbcat, Apr 27, 2013.

  1. Hubbcat
    Joined: Oct 15, 2002
    Posts: 561

    Hubbcat
    Member
    from Sweden

    So how much revs do my engine like?
    350 030 bore 400 crank 010 downsize to smaljurnal 327 rods,ross piston with the dome taking out to flat topp,64cc arf heads.
    having 6000 rpm cut out now,but the cam like more rev,can i put it to 6500?or even more?

    Thanks
     
  2. Hubbcat
    Joined: Oct 15, 2002
    Posts: 561

    Hubbcat
    Member
    from Sweden

  3. Flatheadguy
    Joined: Dec 2, 2008
    Posts: 2,037

    Flatheadguy
    Member

    I deleted my original response since this has been edited to make corrections by OP.

    Where in Sweden are you? Lots of hot rod and custom car activity there.
     
    Last edited: May 5, 2013
  4. Hubbcat
    Joined: Oct 15, 2002
    Posts: 561

    Hubbcat
    Member
    from Sweden

    Help.....................................
     

  5. c-10 simplex
    Joined: Aug 24, 2009
    Posts: 1,367

    c-10 simplex
    Member

    i wouldn't go any higher than 5,000. Have you done any balancing/blueprinting? Are the rods stock? What type of Ross pistons etc?
     
  6. Bad Daddy
    Joined: Nov 13, 2010
    Posts: 829

    Bad Daddy
    Member

    Throw it on a dyno and find out.
     
  7. landseaandair
    Joined: Feb 23, 2009
    Posts: 4,474

    landseaandair
    Member
    from phoenix

    Not sure what you mean by "cut out" but I think I'd cringe going over 6200 with that setup (assuming aftermarket 11/32" rod bolts). Maybe try a different cam and shoot for torque instead.
     
  8. Dane
    Joined: May 6, 2010
    Posts: 1,351

    Dane
    Member
    from Soquel, CA

    Not unless it was built and balanced for that rpm. It'll rev and go like hell till a skinny 327 rod breaks or a bearing spins.
     
  9. mustang6147
    Joined: Feb 26, 2010
    Posts: 1,847

    mustang6147
    Member
    from Kent, Ohio

    How much valve spring seat pressure ? If you wanna wind it up, your gonna need strong springs that match your cam.... I like 110 for the street
     
  10. Mustang6147 is asking the right questions...
    Your valves and springs need to be up to the task. Valve float will ruin your engine's life in a hurry. If you don't have all the specifics, the engine builder will know what the motor can handle—I'd ask it's creator.
     
  11. Lukcarnut
    Joined: Apr 6, 2013
    Posts: 41

    Lukcarnut
    Member
    from California

    I dont think 500 more RPM would hurt, Wouldent do it all the time tho
     

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