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EC Stage 3 Performance Kit for Predator 212 Hemi
EC Stage 3 Performance Kit for Predator 212 Hemi
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EC Stage 3 Performance Kit for Predator 212 Hemi

Part Number: 212H-003
Online Price: $385.00
Stage 3 Performance Kit for Predator 212 Hemi – EC High RPM Engine Upgrade
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Description

EC’s Stage 3 Performance Kit for Predator 212 Hemi Engines


Get Tillotson 225R-Level Power Without the Premium Price


Unleash the full potential of your Predator 212 Hemi with EC’s Stage 3 Performance Kit—engineered to deliver the horsepower, torque, and high-RPM capability of the renowned Tillotson 225R, all without the cost of a full engine swap.


This kit transforms your stock Predator 212 Hemi into a race-ready, high-revving powerhouse—ideal for go-karts, mini bikes, and competitive racing builds. Expect stronger acceleration, higher top-end RPMs, and improved throttle response, all while maintaining long-term durability.


Why Choose the EC Stage 3 Kit?

The biggest leap from Stage 2 to Stage 3 comes from two performance-defining upgrades:

  • A high-flow WC22 round slide carburetor
  • An aggressive .265" lift TTS-265 Banzai camshaft

These upgrades radically improve airflow and valve timing, unleashing explosive power above 4500 RPM—making this the go-to combo for short tracks, high-speed runs, and serious performance enthusiasts.

Recommended Clutch Engagement:

  • Ideal: 3800–5000 RPM
  • Minimum: 3500 RPM


What’s Included in the EC Stage 3 Performance Kit

1. Wildcat WC22 Round Slide Carburetor Kit

  • Based on the PZ26, with EC’s custom casting and calibrated fuel circuits
  • Flows approx. 85 CFM—ideal for engines with ported heads
  • Optimized for Predator Hemi, Wildcat 223, GX200, Clone, and Tillotson platforms
    Pro Tip: Port your cylinder head to take full advantage of this carb’s airflow.


2. TTS-265 Banzai Camshaft + 26lb Valve Springs

  • Race-proven .265" lift camshaft with a wide, flat torque curve from 4500 to 7000+ RPM
  • Delivers exceptional throttle response and top-end performance
  • Used in Tillotson 225RS builds for a reason—it dominates in short-track and sprint racing


3. SK100 Rev Wheel Billet Aluminum Flywheel

  • Lightweight, low-drag fin design for reduced rotating mass
  • Built-in 34° ignition timing for enhanced combustion
  • Neodymium magnets improve spark energy for a cleaner, stronger ignition
    Important: This flywheel has a taper specific to the Predator 212 Hemi.
    Not compatible with Honda/Clone or Predator Non-Hemi engines.


4. ARC 3.308 Billet Connecting Rod

  • Designed to handle 5500+ RPM and high-output builds
  • Reinforces the rotating assembly for long-lasting reliability
  • CNC-machined for smooth operation


5. 70mm Fire Ring Head Gasket

  • Composite gasket with embedded fire ring ensures a high-pressure seal
  • Resists blowouts and thermal expansion better than thin steel gaskets
  • Perfect for performance engines with aluminum blocks and heads


6. Replacement Side Cover Gasket

  • Included for convenience when swapping cams
  • Ensures a clean, leak-free reassembly


Exhaust Header Compatibility (Not Included)

To allow for personalized builds, headers are not included in this kit.

Header Fitment Guidelines:

  • Minimum Inside Diameter: .870"
  • Best Performance Range: .930"–.960" (open, no muffler)
  • If using a muffler, use only the 4106 RLV Muffler
    Avoid: Screw-on lawnmower mufflers or “weenie” pipes—they severely limit power output.

Need help choosing the right header? Browse our Exhaust Section or contact us for expert advice.


??? Recommended Fluids & Spark Plug Setup

Engine Oil:

  • Break-In Oil: Maxima 5W-16
  • Running Oil: Maxima RS 0W-20

Spark Plug:

  • Torch K7RTI Fine Wire Iridium
    • Enhances cold starts, ignition precision, and throttle response
    • Gap: .026"–.032"

Avoid using Autolite 3910X – Although popular, these plugs tend to foul easily in gas-powered engines, leading to misfires and poor performance.

FAQ

Q1: What kind of performance gains can I expect from the EC Stage 3 Kit on a Predator 212 Hemi?

The Stage 3 Kit transforms your Predator 212 Hemi into a race-ready, high-RPM engine with power comparable to a Tillotson 225R. Expect improved acceleration, broader torque, and higher top-end RPM, especially above 4500 RPM.


Q2: How is this kit different from EC’s Stage 2 Kit?

Stage 3 introduces two major upgrades:

  • A WC22 round slide carburetor (85 CFM)
  • The TTS-265 Banzai camshaft with .265" lift
    These significantly increase airflow and valve timing, giving you much more performance at higher RPM ranges than Stage 2.


Q3: Is this kit compatible with all Predator 212 engines?

No. This kit is only compatible with the Predator 212 HEMI engine.
The included billet flywheel has a taper specific to the Hemi version and is not compatible with:

  • Honda GX200
  • Non-Hemi Predator 212
  • Clone engines


Q4: Do I need to port my cylinder head for this kit to work?

No, but porting your head is strongly recommended. The WC22 carb flows approximately 85 CFM, and a ported head will allow you to take full advantage of this airflow for maximum performance.


Q5: What clutch engagement RPM is recommended?

  • Ideal Engagement: 3800–5000 RPM
  • Minimum: 3500 RPM
    Lower settings may reduce acceleration and responsiveness.


Q6: What kind of exhaust header should I use?

Use a header with:

  • Minimum inside diameter: .870"
  • Best performance range: .930" to .960"
  • If a muffler is required, use only the 4106 RLV Muffler
    Avoid screw-on lawnmower mufflers and “weenie” pipes—they choke power and reduce performance.


Q7: What spark plug do you recommend?

Torch K7RTI Fine Wire Iridium

  • Gap: .026"–.032"
  • Offers better ignition, throttle response, and cold starts
    Avoid Autolite 3910X—they often foul early in gasoline engines, causing misfires and hard starts.


Q8: What engine oil should I use with this kit?

  • Break-In Oil: Maxima 5W-16
  • Running Oil: Maxima RS 0W-20
    Using high-quality oil helps protect your upgraded internals under high RPM conditions.


Q9: Can I install this kit myself?

Yes, if you're experienced with small engine builds. The kit is bolt-on friendly, but it does require:

  • Camshaft, flywheel, and rod replacement
  • Valve lash adjustment
  • Carb tuning
    We recommend this for intermediate to advanced builders or racers.


Q10: Is this kit legal for use in racing classes?

This kit is not legal in most stock or spec classes due to its cam and carb upgrades. Always check your class rules or consult with your race director before use.

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