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Thread: Beehive Springs

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    427
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    Default Beehive Springs

    Hi all. People in the know here are giving Beehive springs a bad rap. I had no choice but to use them, but if the are used for the intended application why are some people steering away from them ??..

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    I had to as well. Nothing wrong with them. I believe the issues lie in the setup. Its been shown the Beehives provide better valve control at a lower spring pressure compared to the dual spring higher tension equivalent. Which is good for lobes and lifters. The only downside is IF it breaks you don't have the inner spring to prevent dropping a valve. I know on mine I had to get a lower retainer that locates the base of the valve spring on its I.D, as my spring bases machined in the head were way too big.

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    427
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    Ok. Great thanks. I could not machine the spring pads on my Fuellies because they are pre historic and its a fragile casting in that area apparently..

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    Yeah the spring pads I bought are a comp cams design. They locate around the larger guide boss and its OD is 1.250 if I can remember correctly.

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    https://www.jegs.com/i/COMP-Cams/249/4688-1/10002/-1

    like these. But in whatever size suits your application.

    https://www.jegs.com/i/COMP-Cams/249/4706-1/10002/-1

    Or these.

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    They are a single spring, thats the only reason why I wouldnt buy them.. At least a dual or more will give you a fighting chance if a spring breaks. I'll take higher pressure and a safety net over less pressure and a single.

    Also more suitable for a hydraulic roller so no good for me this time around...

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    Agreed. Solid Rollers require the big guns.

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    AED
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    We will not use behive single springs in anything now after having two engines break a spring. We were lucky as both were only idling when it happened so luckily no damage but could have been a shit load worse. I have heard lots of horror stories through the HP engine industry of dropped valves etc. We now use a lot of the small diam. dual LS springs in everything now that requires a good spring to suit agressive hyd flat, solid flat tappet and hyd. roller set ups. We even had crow make a retainer to suit the 7* 11/32 collet and spring locators to suit alloy heads with .560 guides. Crow have just released them and I can recomend them, great set up. tell em Rod at AED sent you.

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    427
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    Now i'm starting to panic...

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    Do you know why the springs failed Rod?

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    Single wire spring, certain rpm, certain harmonic/jerk = snap.

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    427
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    Ok. Understand. Thanks mate. Long story short, anything can fail..possibly.

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    Quote Originally Posted by AED View Post
    We will not use behive single springs in anything now after having two engines break a spring. We were lucky as both were only idling when it happened so luckily no damage but could have been a shit load worse. I have heard lots of horror stories through the HP engine industry of dropped valves etc. We now use a lot of the small diam. dual LS springs in everything now that requires a good spring to suit agressive hyd flat, solid flat tappet and hyd. roller set ups. We even had crow make a retainer to suit the 7* 11/32 collet and spring locators to suit alloy heads with .560 guides. Crow have just released them and I can recomend them, great set up. tell em Rod at AED sent you.
    Rod, what brand of small dual springs do you use on the LS heads with these Crow retainers etc? Thanks

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    Quote Originally Posted by EH179 View Post
    Single wire spring, certain rpm, certain harmonic/jerk = snap.
    This is possibly true but then no cars would have single springs. Ovate wire beehive springs also have a constantly changing diameter so are supposed to be less susseptible to harmonics than your tradition straight valve spring.

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    Quote Originally Posted by immortality View Post
    This is possibly true but then no cars would have single springs. Ovate wire beehive springs also have a constantly changing diameter so are supposed to be less susseptible to harmonics than your tradition straight valve spring.
    Use at your own peril!

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