Rev limiter or rev-limited coil: which should I run?

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Accepted Answer

A rev-limited coil gives you one fixed limit, and you pull the flywheel to fit it. A rev limiter like the Steamer Power Guardian™ wires into the coil you already have, and you set any limit you want from your phone. Side by side. Fitting: a coil swap means the flywheel comes off. Guardian is three wires: kill, ground, two-step. The limit: a coil is one number, set when it was made. Guardian is any number you set in the STOKER app, with live RPM. Changing it: to rev past a rev-limited coil's number, you need an unlimited coil. With Guardian you change the limit in the pits in seconds. Extras: Guardian adds a two-step launch limit and a choice of soft, medium, or hard. Power: Guardian has its own battery and charges off USB-C. It needs nothing from the engine's electrical system. Running both. Already running a rev-limited coil? Guardian can only lower the ceiling, never raise it. Your limit is the lower of the two. Guardian can't override a rev-limited coil. To spin the engine past the coil's limit, fit an unlimited coil and let Guardian set the limit. What it costs. The Guardian is $149.99 on pre-order and $175 regular. It costs more than a rev-limited coil because it does more than one job: any limit you want, changed from your phone, plus a two-step and a choice of how it hits.