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TAPP Button to Roller Spider Conversion
Switching a TAPP clutch from a button spider to a roller spider? Keep your calibration and adjust arm weight to get back to target RPM.
A roller spider is more efficient than a button spider (there's less rolling resistance), so it may need less arm weight to hit the same RPM. You don't need to start calibration from scratch.
Recalibrate after the change
- Install the same calibration you were running on the button spider.
- Run the machine and read your top RPM.
- Adjust arm weight up or down to bring it back to your target RPM.
That's the whole process. Because the roller spider is more efficient, expect to end up at or below the weight you were running before.
Tip
Change one thing at a time. If you switch the spider and the spring together, you won't know which one moved your RPM.
See TAPP Clutch Target RPM Calibration for how arm weight moves RPM.
Need technical support?
Submit a ticket with your vehicle and what you're seeing, and our support team will get back to you.
