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Weird valve spring question

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Old 07-31-2020, 02:08 AM
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Default Weird valve spring question

If you had a cam with different lift specs for intake and exhaust could you run 2 different pressures of valve spring?
Old 07-31-2020, 04:39 AM
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You would normally run the higher pressure springs. I’ve never heard of anyone running setting per intake/exhaust
Old 07-31-2020, 06:24 AM
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I have treated spring rates based more on ramp rates than gross lift. Never really heard of anyone splitting kits, but I am sure it happens.

When exhaust lift is lower, typically say .020, not enough difference to matter.
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Old 07-31-2020, 07:46 AM
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Originally Posted by Dr1rrrr
If you had a cam with different lift specs for intake and exhaust could you run 2 different pressures of valve spring?
Normally you will not see this until you enter the Max Effort very high RPM arena. Otherwise same springs all across.
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Old 07-31-2020, 11:50 AM
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Ok thanks guys I was just kinda curious if it was possible
Old 07-31-2020, 03:39 PM
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Definitely possible; definitely not the usual way.



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