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Tennessee Thunderstix - Reaper .268 Performance Camshaft (224 Core)
Tennessee Thunderstix - Reaper .268 Performance Camshaft
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Tennessee Thunderstix - Reaper .268 Performance Camshaft (224 Core)

Part Number: TTS-680
Online Price: $68.99
Phone Order Price:$74.99
You Save:$6.00(8%)
Reaper .268 Camshaft – Honda Clone Kart Racing Performance Cam
Availability: In Stock.

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Description

Tennessee Thunderstix Reaper .268 Performance Camshaft- High-RPM Power Cam for Honda Clone Kart & Mini Bike Racing Engines


The Reaper .268 Camshaft from Tennessee Thunderstix lives up to its name—delivering aggressive top-end power for serious kart racing and mini bike performance builds. Inspired by the world’s hottest pepper and the personification of death, the Reaper isn’t just another .265–.268 lift cam—it’s a purpose-built evolution designed to dominate where other cams fall off.


Engineered for Maximum Top-End Performance

Built as the successor to the widely popular Banzai camshaft, the Reaper was developed specifically for:

  • Larger displacement small block Honda-clone engines
  • High-compression race builds
  • Racers demanding stronger pull from mid to high RPM

Unlike many cams in the saturated .265 lift category, the Reaper is optimized to increase average horsepower—not just peak numbers. The result is a broader, more usable powerband where it matters most on track.


Optimized Powerband for Racing Applications

  • Primary Power Range: 5000–8000 RPM
  • Secondary Power Range: 3500–7000 RPM
  • Peak Torque: 5000–6500 RPM
  • Peak Horsepower: 7000–7500 RPM

This camshaft is engineered to maximize average power between 5000–8000 RPM, ensuring stronger acceleration and sustained speed without sacrificing drivability. It remains compatible with lower clutch engagement setups, making it versatile across kart and mini bike racing applications.


Sleeper Performance – No Welded Lobes Required

The Reaper delivers elite performance in a non-welded “sleeper” design, keeping costs down while maintaining reliability. It is specifically designed to:

  • Work with stock-style valvetrain components
  • Require only 26 lb valve springs
  • Provide high performance without excessive complexity


Recommended Engine Setup

Best suited for:

  • 223cc+ engines
  • Compression ratios 10.5:1 to 11.75:1

Fuel Considerations:

  • Above 11.75:1 compression: race gas or methanol recommended
  • Below 10.5:1: reduced low-end gains and limited overall benefit

For smaller or lower-compression engines, consider:

  • Reaper Jr
  • Banzai II


Stroker-Compatible Design (224-Core Platform)

All DynoCams 224-core camshafts include:

  • .550” cam journal
  • Narrow lobes for rod clearance
  • Lobe-to-lobe clearancing
  • Reduced compression release for 58mm stroke compatibility

These features eliminate the need for crankshaft clearancing in stroker builds, making the Reaper ideal for high-performance engine combinations.


Engine Compatibility

Direct Fit:

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

Also Compatible (.550” Journal Engines):

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

Important:
Stroked 196cc/212cc engines using 58mm+ crankshafts require a 224-core camshaft to prevent compression release interference.

Not Compatible:

  • Predator 212 Non-Hemi
  • Predator 224 Hemi


Camshaft Specifications

  • Intake Lift: .268
  • Duration @ .050: 236° / 242°
  • Intake Centerlines: 112° / 100°
  • Recommended Valve Lash: .003–.006 (hot)
  • Includes 26 lb valve springs


Clutch & Torque Converter Setup

  • Minimum Engagement: 3400 RPM
  • Recommended Engagement: 4000–5000 RPM
  • Max Recommended RPM: 8000 RPM


Recommended Performance Build

  • Engine: 236cc+, Tillotson 236R/RX, 240RX, Wildcat 240
  • Cylinder Head: WC946-3 31/25mm CNC Ported
  • Carburetor: 24–26mm (90–110 CFM), PWK24-1K (gas)
  • Ignition: SK300 flywheel with PVL 12,000 RPM ignition
  • Exhaust: .960–.990 ID (open preferred)


Critical Safety Requirements

  • Billet connecting rod required above 6000 RPM
  • Billet or aluminum flywheel required above 6000 RPM

Failure to upgrade rotating components may result in catastrophic engine failure.


Learn More

For detailed cam comparisons and technical breakdowns:
https://www.eccarburetors.com/kart-racing-camshaft-honda-clone-reaper-banzai

FAQ

What engines is the Reaper .268 camshaft designed for?

The Reaper .268 camshaft is designed for Honda clone-style engines, including Predator 224, Ducar 224, Wildcat 223/240, Tillotson 212E, and GX200-based builds with a .550” cam journal. It is best suited for 223cc and larger engines.


What RPM range does the Reaper camshaft perform best in?

This camshaft is optimized for:

  • Primary powerband: 5000–8000 RPM
  • Peak horsepower: 7000–7500 RPM
  • Peak torque: 5000–6500 RPM

It is ideal for kart racing and mini bike setups that operate in sustained high RPM conditions.


Do I need upgraded valve springs to run this cam?

No. The Reaper .268 camshaft is designed to run with 26 lb valve springs, allowing use of stock-style valvetrain components while still delivering high performance.


What compression ratio works best with this camshaft?

For optimal performance:

  • Recommended: 10.5:1 to 11.75:1
  • Above 11.75:1: race gas or methanol is recommended
  • Below 10.5:1: performance gains will be limited, especially at lower RPM


Is the Reaper camshaft good for low-end torque?

The Reaper is designed for mid-to-high RPM performance, not low-end torque. Engines below 4500 RPM may see reduced gains, making it better suited for racing applications rather than casual riding.


Will this camshaft work in a stroked engine?

Yes. The Reaper uses a 224-core design, making it fully compatible with 58mm stroker crankshafts without requiring additional crankshaft clearancing.


What clutch or torque converter setup is recommended?

  • Minimum engagement: 3400 RPM
  • Recommended engagement: 4000–5000 RPM
  • Max RPM target: 8000 RPM

Proper clutch tuning is critical to fully utilize the camshaft’s powerband.


Is this camshaft safe to run with stock engine components?

No. For safe operation above 6000 RPM, you must upgrade:

  • Billet connecting rod
  • Billet or aluminum flywheel

Failure to do so can result in catastrophic engine failure.


What makes the Reaper .268 different from other .265/.268 cams?

Unlike many cams in this category, the Reaper is designed to:

  • Maximize average horsepower, not just peak numbers
  • Deliver a broader usable powerband
  • Maintain affordability with a non-welded design
  • Support high-performance builds without excessive valvetrain upgrades


Is this camshaft good for kart racing in regulated classes?

It depends on the rule set. Many sanctioning bodies restrict camshaft modifications, so always check your class rules before installation.

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