Feb 26, 2018 · Manifold vacuum is good guide to engine load, a bit like the old days when owners fitted a vacuum gauge on the …

Mar 9, 2026 · At wide-open throttle, calculated load should hit close to 100% regardless of RPM. This is actually a useful diagnostic …

Nov 3, 2024 · Calculated Load reflects how the engine is breathing during WOT at any point in time (regardless of elevation, engine …

Dec 23, 2025 · Find out why your fuel system fails under load. Diagnose volume restrictions and component failures causing fuel …

Dec 16, 2020 · If your Load value is fixed low for all conditions and RPM ranges stationary and while driving, my first thought is …

Jan 2, 2026 · When accelerating, the engine demands both high volume and high pressure, causing any weakness in the supply or …

May 29, 2026 · Is your car hesitating? Learn why your engine bogs down when accelerating, from fuel delivery issues to faulty …

May 1, 2015 · Calculated Load Value -- Indicates a percentage of peak available torque. Reaches 100% at wide open throttle at any …

I wrote a column on load as characterized by airflow in the August 2010 issue of Motor. The matrix I developed is shown in Fig. 1 on …

Nov 30, 2020 · I've been chasing a strange WOT shifting behavior where the engine seems to hit redline during shifting without …