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DynoCams MOD1-224 for 223/224 Engines
DynoCams Mod1-224 camshaft for Predator 224 & Wildcat 223 engines
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DynoCams MOD1-224 for 223/224 Engines

Part Number: MOD1-224
Online Price: $106.00
DynoCams Mod1-224 Camshaft | Modified Predator 224 & Wildcat 223 Racing Cam
Availability: In Stock.

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Description

DynoCams Mod1-224 Camshaft - Limited Modified & Modified Racing Cam for Predator 224 & Wildcat 223 Engines


The DynoCams Mod1-224 Camshaft is a purpose-built, limited-modified racing cam designed to push performance to the edge of most class rulebooks. Closely related to the popular 308 grind, the Mod1-224 delivers a broad, race-focused powerband with slightly increased duration and overlap—unlocking more top-end power in more extreme combinations while maintaining predictable midrange performance.


Compared to the 308, the Mod1-224 trades a small amount of torque below peak RPM for a stronger high-RPM pull, making it an excellent choice for racers looking to fine-tune performance without drastically reshaping their engine’s power curve.


This camshaft is ideal for modified Predator 224cc, Wildcat 223, and stroked 212/196cc builds where airflow, cylinder head capability, and carburetor size are no longer limiting factors.


Performance Characteristics

  • Designed to meet the upper limits of the limited modified class rules
  • Slightly more duration and overlap than the 308 grind
  • Improved top-end power in fully modified builds
  • Broad, controllable powerband suitable for competition racing
  • Moderate drivability depending on carburetor and cylinder head combination

The Mod1-224 is a smart alternative for racers who want something different from the standard 308 without making extreme sacrifices in torque, drivability, or tuning window.


Ideal Pairings & Valvetrain Recommendations

The Mod1-224 camshaft performs best when paired with high-flow components:

Recommended Cylinder Heads

  • Big-valve, ported cast heads
  • EC WC946-5 or similar high-flow designs
  • Billet cylinder heads for extreme builds

Carburetor Range

  • 24–28mm carburetors
  • Ideal for larger Tillotson-style or equivalent diaphragm carbs

Recommended Rocker Arm Ratios

  • 1.1 Ratio – Increased low-RPM torque below peak
  • 1.2 Ratio (Most Popular) – Best overall balance
  • 1.3 Ratio – Increased top-end RPM and peak power
  • 1.4 Ratio (Extreme Builds Only)
    • Requires cylinder heads capable of .400”+ valve lift
    • Best suited for billet heads or highly developed cast heads


224-Core Design for Stroker Compatibility

All Mod1-224 camshafts use a modern .550” journal 224-core, engineered specifically for today’s stroker engine combinations:

  • Narrowed cam lobes for connecting rod clearance
  • Additional clearance between lobes for 58mm stroke crankshafts
  • Thinner compression release to clear crank counterweights

This design allows the Mod1-224 to drop into stroked 196cc and 212cc engines without requiring additional crank or cam tunnel clearancing.


Engine Compatibility

Direct-Fit Applications

  • Harbor Freight Predator 224cc Non-Hemi
  • Ducar 224cc Non-Hemi
  • Wildcat 223 Hemi
  • Wildcat 240 Non-Hemi

Fits Engines with .550” Cam Journals

  • Predator 212 Hemi
  • Tillotson 212E
  • Ducar 212
  • Honda GX200 / 196cc Clone

Important Stroker Note:
For 196cc or 212cc engines using 58mm or longer crankshafts, a 224-core camshaft is required to prevent compression-release interference. The Mod1-224 fully meets this requirement.

Does NOT Fit

  • Predator 212 Non-Hemi
  • Predator 224 Hemi


Required Supporting Components

For safe operation at the intended RPM range, the following components are mandatory:

  • Billet connecting rod
  • Billet or aluminum flywheel


Technical Specifications

Recommended Class: Modified
Target (Max) RPM: 9,000 RPM
Spring Pressure (Intake / Exhaust): 34–36 lbs
Valve Lash (Intake / Exhaust): .003"
Ignition Timing: 34° BTDC

Cam Profile


Intake

Exhaust

Open

42.0° BTDC

78.0° BBDC

Close

83.5° ABDC

46.0° ATDC

Lift

.310"

.310"

Centerline

108.0° ATDC

108.0° BTDC

Duration @ .050"

247.6°

247.6°

FAQ

What engines does the DynoCams Mod1-224 camshaft fit?

The Mod1-224 is a direct fit for Predator 224cc non-hemi, Ducar 224 non-hemi, Wildcat 223 hemi, and Wildcat 240 non-hemi engines. It also fits Predator 212 hemi, Tillotson 212E, Ducar 212, and Honda GX200 / 196cc clone engines that use a .550” cam journal.


Does the Mod1-224 camshaft work in stroked engines?

Yes. The Mod1-224 uses a 224-core camshaft with narrowed lobes, added rod clearance, and a thinner compression release, making it ideal for stroked 196cc and 212cc engines using 58mm or longer crankshafts—without requiring crank clearancing.


How does the Mod1-224 compare to the 308 camshaft?

The Mod1-224 is very similar to the 308 grind but features slightly more duration and overlap. This results in stronger top-end power, especially in fully modified engines, with a small tradeoff in torque below peak RPM.


What racing classes is the Mod1-224 designed for?

The Mod1-224 is designed for limited modified and modified racing classes, operating near the upper limits of most rule sets while maintaining a broad and controllable powerband.


What carburetor size works best with the Mod1-224?

The Mod1-224 performs best with carburetors in the 24–28mm range, especially when paired with high-flow, big-valve cylinder heads.


What rocker arms should I use with the Mod1-224 camshaft?

  • 1.1 ratio: Improved low-RPM torque
  • 1.2 ratio: Best overall balance (most popular)
  • 1.3 ratio: Increased top-end power
  • 1.4 ratio: Extreme builds only, requires .400”+ capable heads


What supporting parts are required?

A billet connecting rod and billet or aluminum flywheel are required for safe operation within the camshaft’s intended RPM range.


What is the maximum RPM for the Mod1-224?

The recommended maximum RPM is approximately 9,000 RPM, depending on valvetrain stability, spring pressure, and overall engine combination.


Does this camshaft fit Predator 212 non-hemi engines?

No. The Mod1-224 does not fit Predator 212 non-hemi engines or Predator 224 hemi engines.


Is the Mod1-224 suitable for trail or recreational riding?

This camshaft is intended for racing and modified competition use. Idle quality and low-speed drivability depend heavily on the carburetor, cylinder head, and valvetrain combination.

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