Engine Building

Single vs. Dual Valve Springs for GM Ecotec Engines

Single vs. Dual Valve Springs for GM Ecotec Engines

Does a performance Ecotec really need dual valve springs? Learn how single and dual springs compare in pressure, spring rate, lift, dynamic control, installation and high-RPM performance.

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Ecotec Valve Float vs. Valve Bounce vs. Spring Surge

Ecotec Valve Float vs. Valve Bounce vs. Spring Surge

Valve float, valve bounce and spring surge are different forms of Ecotec valvetrain instability. Learn what each means, how they interact, and why hydraulic lash instability should be diagnosed separately.

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How RPM Affects Ecotec Valve Spring Requirements

How RPM Affects Ecotec Valve Spring Requirements

Higher RPM gives an Ecotec valvetrain less time to complete each valve event. Learn how engine speed increases spring demand and why RPM must be matched with camshaft profile, valve...

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Ecotec Valve Spring Installed Height: Why It Matters

Ecotec Valve Spring Installed Height: Why It Matters

Valve spring pressure depends on installed height. Learn how installed height affects Ecotec seat pressure, open pressure, spring travel, coil bind and high-lift camshaft compatibility.

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Why Baffle Pans Work Better Than Deeper Oil Pans BK Racing

Why Baffle Pans Work Better Than Deeper Oil Pans

Does a deeper oil pan really prevent oil starvation? Learn why baffled oil pans provide superior oil control by maintaining oil around the pickup during high-G cornering, braking, and acceleration,...

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