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Balance shaft discussion

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Old May 20, 2025 | 11:53 AM
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Question Balance shaft discussion
I don’t believe that the balance shafts are removed, but a smooth shaft is installed to replace it and the sprocket is still used to drive the water pump chain


https://zzperformance.com/products/n...lance-shafts-1
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Old May 20, 2025 | 11:34 PM
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Originally Posted by Oldblue
I don’t believe that the balance shafts are removed, but a smooth shaft is installed to replace it and the sprocket is still used to drive the water pump chain
They do It both ways. The more effective technique is to removing the extraneous rotating mass completely along with a bit of chain inertia, but it's more work.
Last edited by PulpFriction; May 21, 2025 at 07:48 PM.
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Old May 21, 2025 | 06:35 AM
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So if they remove the shafts, how is the water pump driven?
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Old May 21, 2025 | 07:47 PM
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Originally Posted by Oldblue
So if they remove the shafts, how is the water pump driven?
A (shorter?) chain drives the water pump, different guides, no more balance sprockets? Maybe a guide sprocket? I've seen pics, but didn't study it. Possibly more than one arrangement
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Old May 22, 2025 | 07:42 AM
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I’m not seeing a plausible route for a shorter chain.
I’m not seeing a plausible route for a shorter chain.
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Old May 22, 2025 | 09:20 PM
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Electric water pump, especially if the object is to maximize HP.
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Old May 23, 2025 | 08:47 AM
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Originally Posted by donbrew
Electric water pump, especially if the object is to maximize HP.
Yep, that would be the ultimate.

Did a quick google, one of the 1st hits-



​​​​​​​
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Old May 23, 2025 | 10:23 AM
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An (available?) kit, without endorsement-

https://jasonwaterstuning.com/produc...hort-chain-kit




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Old May 23, 2025 | 10:41 AM
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Ah! That is how it’s done! Thanks !
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Old May 23, 2025 | 11:10 AM
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Looks like there is a boss on the block for just that purpose.
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