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EC 1600-BLU 1800RPM Springs for 1600 Clutch
1600-BLU 1800RPM Springs for 1600 Clutch
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EC 1600-BLU 1800RPM Springs for 1600 Clutch

Part Number: 1600-BLU
Online Price: $3.00
1600-BLU 1800 RPM Clutch Springs for EC 1600-Series Racing Clutch
Availability: In Stock.

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Description

1600-BLU 1800 RPM Clutch Springs for EC 1600-Series Drum Clutch


The 1600-BLU Clutch Springs are designed specifically for EC’s 1600-Series 1" drum clutches, widely used in governed racing classes like the Restricted Single Cylinder class in lawnmower racing, where engines are limited to 3650 RPM.


These blue springs lower clutch engagement from 2200 RPM to 1800 RPM, giving you a broader tuning window and an extra 400 RPM of usable range. This added flexibility allows you to fine-tune your gear ratios for quicker acceleration or higher top-end speed, depending on your track and setup.


Key Features:

  • Engagement RPM: ~1800 RPM (stock engagement is 2200 RPM)
  • Use Case: Ideal for RPM-limited racing classes
  • Improved Tuning: +400 RPM range allows more precise gearing options
  • Compatibility: Specifically for EC 1600-Series clutches
  • Construction: High-strength performance spring steel
  • Installation: Sold individually3 springs required per clutch


Important Notes:

  • These springs are engineered for EC’s 1600-Series clutches.
  • While they may fit other brands or models, engagement RPM can vary due to differences in drum-to-shoe air gaps and shoe mass.
  • Improper installation or use in incompatible clutches may result in failure or poor performance.


Perfect For:

  • Racing lawnmowers in RPM-restricted classes
  • Builders tuning clutches for low-end torque or better launch
  • Anyone using EC’s 1600-series clutch system looking for more control

FAQ

Q1: What clutch do these springs fit?
A: These springs are specifically designed for EC’s 1600-Series 1" drum clutches. Fitment on other clutch models is not guaranteed.


Q2: What RPM does this spring engage at?
A: The 1600-BLU springs engage at approximately 1800 RPM, compared to the stock 2200 RPM.


Q3: How many springs do I need per clutch?
A: Each EC 1600-Series clutch uses three springs, and they are sold individually.


Q4: Can these springs fit other clutches?
A: While they may physically fit, engagement RPM may vary due to differences in clutch design (shoe weight, drum gap, etc.). Use with non-EC clutches is not recommended.


Q5: What are the benefits of lower engagement RPM?
A: Lowering the engagement point allows for better low-end acceleration, smoother launches, and more precise gear ratio tuning—especially important in RPM-limited racing classes.

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