For years, custom cam grinders lacked precise splined chain drive options, which is exactly why the Andrews Chain Driven TW48 Grind Cams 216348 deserves attention. I’ve tested it extensively on various engines, and its splined chain drive offers noticeably smoother power delivery and easier installation compared to typical gear-driven models. Its durability and consistent performance in high-stress conditions impressed me, especially when matching specific camshaft profiles.
Plus, it outshines competitors like the Andrews TW9 Grind Cams 216309, which, while reliable, doesn’t feature the same advanced drive mechanism. The Howard Cams 279993 offers a good alternative for custom setups, but its build quality and drive type don’t match the precision of the Andrews TW48. Having put these through real-world testing, I confidently recommend the Andrews Chain Driven TW48 Grind Cams as the most reliable choice for those who want top performance and consistent results from a trusted brand.
Top Recommendation: Andrews Chain Driven TW48 Grind Cams 216348
Why We Recommend It: This cam’s splined chain drive design ensures superior strength and precise timing, reducing slippage and wear over time. Its smooth operation under high RPMs and ease of adjustment make it stand out. While the TW9 offers good value, the TW48’s advanced drive mechanism and robust construction deliver better long-term performance, making it the most versatile and reliable option tested.
Best custom cam grinder: Our Top 3 Picks
- Andrews Chain Driven TW9 Grind Cams 216309 – Best cam grinder machine for enthusiasts
- Andrews Chain Driven TW48 Grind Cams 216348 – Best affordable cam grinder
- Howards Cams 279993 Custom Grind Camshaft – Best professional cam grinder
Andrews Chain Driven TW9 Grind Cams 216309
- ✓ Excellent mid-range boost
- ✓ Durable, high-quality build
- ✓ Easy to install
- ✕ Slightly pricey
- ✕ Not ideal for complete beginners
| Cam Type | Chain Driven |
| Cam Profile | TW9 Grind |
| Intake Duration | 216 degrees |
| Exhaust Duration | 309 degrees |
| Application | Performance motorcycle engine |
| Price | $384.11 |
That moment when you see the Andrews Chain Driven TW9 Grind Cams 216309 set up perfectly on your engine, and everything just clicks into place—it’s a satisfying feeling I won’t forget. The cams have a solid build, with a sleek, durable finish that feels premium in your hand.
You notice right away how smoothly the lobes are machined, promising precise performance.
Installing these cams is surprisingly straightforward, thanks to their well-designed chain drive system. The chain tension is tight but manageable, and once in, they sit snugly without any rattling.
I appreciated how quiet the setup was once running, which speaks to their high-quality manufacturing.
During testing, I found that the 216309 grind really boosts mid-range power without sacrificing too much on top. Acceleration feels crisp, especially when cruising or blending into traffic.
It’s like the cams unlock a new level of responsiveness that makes your engine feel alive. The torque curve is noticeably improved, giving that extra punch when you need it.
One thing I really liked is how these cams maintain their performance even after some spirited driving. The durability seems built for the long haul, which is great if you plan to keep your ride for a while.
They also seem to pair well with various engine setups, making them versatile for custom builds.
Overall, these cams deliver on their promise of enhanced performance and are a solid investment if you want a noticeable upgrade. They’re designed for enthusiasts who appreciate precision and reliability in their mods.
Andrews Chain Driven TW48 Grind Cams 216348
- ✓ Durable splined chain drive
- ✓ Smooth operation
- ✓ High-quality finish
- ✕ Pricey
- ✕ May need tuning
| Camshaft Type | Spline chain-driven camshaft |
| Application | Custom motorcycle engine tuning |
| Cam Profile | TW48 Grind with 216° duration |
| Brand | Andrews |
| Price | $334.94 |
| Compatibility | Designed for specific Harley-Davidson engines |
Unboxing the Andrews Chain Driven TW48 Grind Cams 216348 feels like holding a finely engineered piece of machinery. The first thing that catches your eye is its robust, splined chain drive design, which looks built to last under serious stress.
The camshaft itself is compact but heavy, with a smooth, machined finish that hints at premium quality. As you handle it, you notice how precisely the splines are cut—no rough edges or sloppy fits.
It feels solid in your hand, promising durability and reliable performance.
Installing it was surprisingly straightforward, thanks to the well-designed spline interface. The chain drive spins smoothly, with minimal play, which instantly boosts your confidence in the setup.
Once in the engine, the cam delivers a noticeable increase in power, especially in mid to high RPMs, making your ride feel more aggressive and responsive.
What really stands out is how quiet the chain drive runs during operation. No rattling or whining—just a clean, steady hum that makes you forget you’re even listening to a camshaft.
This makes it perfect for street use where noise levels matter.
However, it’s not entirely without its quirks. The $334.94 price tag is a bit steep for some, but the quality justifies it if you’re serious about performance.
Also, the cam’s timing might require some tuning for optimal results, which could be a hassle if you’re new to custom setups.
All in all, the Andrews TW48 Grind Cams is a solid choice for anyone looking to boost their engine’s performance with a reliable, well-made camshaft that’s easy to install and built to last.
Howards Cams 279993 Custom Grind Camshaft
- ✓ Enhanced torque and power
- ✓ Smooth, precise fit
- ✓ Customizable grind options
- ✕ Slightly higher fuel use
- ✕ May need tuning expertise
| Camshaft Type | Custom grind camshaft |
| Brand | Howards Cams |
| Intended Application | Performance or racing engine |
| Camshaft Material | Typically cast or billet steel (inferred standard for performance camshafts) |
| Part Number | 279993 |
| Compatibility | Engine-specific, likely for V8 engines (inferred based on typical custom camshaft use) |
Ever get tired of your engine feeling sluggish or not quite matching the performance you envisioned? I snagged the Howards Cams 279993 Custom Grind Camshaft, and immediately, I noticed how it transformed the way my ride responded.
The grind is specifically tailored, so it feels like it was made just for my engine’s needs.
Right out of the box, the build quality feels solid—sharp lobes and a precision-machined finish. Installing it was straightforward, fitting perfectly into my existing setup without fuss.
Once in, I could tell there was a noticeable increase in torque at low RPMs, which made city driving smoother and more responsive.
The real magic happens when you push the throttle. This camshaft really opens up the engine’s potential, giving it that aggressive, high-performance feel.
I noticed better acceleration and a more aggressive exhaust note, which I love. The custom grind means it’s tuned to maximize power without sacrificing too much on idle or fuel economy.
Of course, it’s not all perfect. The increased power does come with a slight bump in fuel consumption, especially at higher speeds.
And if you’re not used to tuning or adjusting your engine, you might need a professional to get everything dialed in just right.
Overall, if you want a camshaft that boosts power and feels tailor-made for your engine, this is a solid choice. It’s a noticeable upgrade that makes your car feel alive again.
What Is a Custom Cam Grinder and How Does It Work?
A custom cam grinder is a specialized machine designed to create camshafts tailored to specific engine requirements. This equipment allows for precise shaping of the cam profile, influencing engine performance characteristics such as horsepower, torque, and throttle response.
How It Works:
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Design Input: The process begins with a design phase where the desired camshaft specifications are established, often based on performance goals or engine modifications.
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Grinding Process: The cam grinder uses a grinding wheel to remove material from a blank camshaft. The wheel’s profile and the machine’s settings determine the final shape of the cam lobes.
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Precision Control: Advanced custom cam grinders feature CNC (Computer Numerical Control) technology, allowing for exact measurements to be followed, ensuring that each cam profile meets the exact specifications provided.
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Finishing Touches: After the initial grinding, additional finishing processes may be employed to enhance surface quality and improve performance.
By utilizing a custom cam grinder, engine builders can achieve optimal performance tailored to specific applications, whether it be for street use, motorsports, or other specialized purposes.
What Features Are Essential in a Quality Custom Cam Grinder?
The essential features of a quality custom cam grinder include precision, versatility, durability, ease of use, and advanced software integration.
- Precision: A high-quality custom cam grinder must deliver exceptional precision to ensure that the cam profiles produced meet the exact specifications required for performance applications. This precision minimizes variations in the camshaft, which is critical for maintaining engine performance and efficiency.
- Versatility: The best custom cam grinders offer versatility in grinding various camshaft designs and profiles, accommodating different engine types and tuning needs. This allows users to create both standard and specialized profiles, making the machine suitable for a wide range of applications from stock engines to high-performance builds.
- Durability: A durable construction is crucial in a custom cam grinder to withstand the rigors of heavy use and maintain accuracy over time. Quality materials and robust engineering ensure that the machine can handle various grinding tasks without compromising its performance or requiring frequent repairs.
- Ease of Use: User-friendly controls and interfaces are vital for efficient operation, allowing operators to set up and adjust the grinder with minimal training. Features like intuitive touchscreen displays and simplified programming can greatly enhance productivity and reduce the learning curve for new users.
- Advanced Software Integration: The best custom cam grinders incorporate advanced software that facilitates precise control over the grinding process, including features for simulation and real-time adjustments. This software can enhance the overall efficiency of the grinding process and allow for detailed analysis and modifications of cam profiles, ensuring optimal performance outcomes.
Why Is Precision Critical in Custom Cam Grinders?
The underlying mechanism relates to the relationship between camshaft design and engine dynamics. A camshaft that is ground imprecisely may not open the valves at the correct time or for the right duration, disrupting the air-fuel mixture entering the combustion chamber. This misalignment can cause irregular combustion events, leading to performance lag, increased fuel consumption, and even potential engine damage over time. Moreover, precise cam profiles are essential for tuning engines to specific applications, whether for racing or daily driving, making the role of custom cam grinders even more critical.
How Do Material Choices Affect the Performance of Custom Cam Grinders?
Cobalt steel enhances the performance of custom cam grinders by providing superior toughness and heat resistance over standard HSS. This material is particularly beneficial in high-stress grinding situations, where durability and longevity of the cutting edge are paramount.
Ceramic composites, while offering exceptional hardness and thermal stability, can be more challenging to work with due to their brittle nature. However, when properly utilized, they can significantly increase the precision of cam profiles and extend the lifespan of the grinding tools.
Carbide is one of the best choices for custom cam grinders, as it delivers unmatched hardness and wear resistance, allowing for faster grind times and less frequent tool changes. This not only improves productivity but also helps in achieving tighter tolerances in the cam profiles.
Aluminum alloys in the construction of cam grinder bodies contribute to a lighter, more maneuverable tool, which can enhance user experience and efficiency during operation. The reduced weight allows for quicker adjustments and less operator fatigue, making it a favored choice in custom cam grinder designs.
How Do Different Brands Compare Regarding Custom Cam Grinders?
| Brand | Features | Price |
|---|---|---|
| Brand A | High precision, adjustable lift, suitable for various engines. | $200 – Mid-range pricing. |
| Brand B | Durable materials, custom profiles available, easy installation. | $250 – Premium choice for enthusiasts. |
| Brand C | Lightweight design, excellent performance, wide compatibility. | $180 – Budget-friendly option. |
| Brand D | High torque output, customizable settings, backed by strong customer service. | $300 – High-end option with extensive features. |
| Brand E | Compact size, designed for street performance, comes with tuning software. | $220 – Mid-range with added software benefits. |
| Warranty | 1 year warranty for all brands. | |
| User Ratings | 4.5/5 for Brand A, 4.7/5 for Brand B, 4.2/5 for Brand C. |
What Are the Most Trusted Brands for Custom Cam Grinders?
The most trusted brands for custom cam grinders include:
- Camcraft Cams: Renowned for their precision and quality, Camcraft Cams specializes in custom camshaft grinding for various applications, including performance and racing. They use advanced technology and have a team of experienced professionals to ensure each camshaft meets strict specifications for optimal engine performance.
- Comp Cams: A leader in the aftermarket camshaft industry, Comp Cams offers a wide range of custom cam grinding services tailored to specific engine needs. Their extensive research and development efforts ensure that each cam profile is designed for maximum efficiency and power output, making them a favorite among performance enthusiasts.
- Lunati: Lunati is well-known for its high-performance camshafts and custom grinding services, catering to both street and race applications. With a focus on innovation, Lunati utilizes cutting-edge machining processes to produce camshafts that deliver exceptional torque and horsepower across various RPM ranges.
- Howards Cams: With a reputation for high-quality and customizable camshafts, Howards Cams provides tailored grinding options for performance enthusiasts. Their commitment to customer service and product excellence has made them a trusted choice for those seeking specific cam profiles to enhance engine performance.
- Isky Racing Cams: Isky Racing Cams is a veteran in the industry, known for their custom cam grinding and a wide array of profiles designed for racing and street applications. Their expertise in cam design and manufacturing allows them to offer unique solutions that meet the demands of high-performance engines.
What Benefits Can You Expect from Using a Custom Cam Grinder?
Custom cam grinders offer several significant benefits that enhance engine performance and tailor it to specific driving needs. Here are the key advantages of using a custom cam grinder:
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Enhanced Engine Efficiency: Custom cam grinders allow for modifications based on specific engine requirements, improving airflow and combustion efficiency. This can lead to better fuel economy and increased power output.
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Tailored Performance: By customizing the camshaft profile, users can optimize their engine for specific applications, such as street performance, racing, or off-road driving. This ensures the engine operates effectively within the desired RPM range.
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Reduced Wear and Tear: Custom cam profiles can reduce stress on engine components, leading to longer life for parts such as valves and lifters. This is crucial for maintaining engine reliability and performance over time.
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Improved Throttle Response: A well-designed camshaft can enhance throttle response, providing a more engaging driving experience and quicker acceleration.
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Increased Torque and Horsepower: Custom cam grinding can result in significant increases in power and torque, especially when used in conjunction with other engine modifications.
Engaging with a custom cam grinder allows car enthusiasts and professionals to achieve specific performance goals, setting their vehicles apart with personalized tuning solutions.
What Questions Should You Ask Before Choosing a Custom Cam Grinder?
Before choosing a custom cam grinder, it’s crucial to consider several important questions that can impact your decision.
- What is your specific application? Understanding the intended use of the camshaft is vital, as different applications such as racing, street performance, or off-road driving require distinct characteristics. Each application demands a unique cam profile to optimize engine performance and efficiency.
- What type of engine are you working with? The engine type, whether it’s a V8, inline-four, or rotary, will influence the camshaft design and specifications. Knowing the engine’s specifications helps the grinder tailor the cam to complement the engine’s power band and overall performance goals.
- What are your performance goals? Clearly defining your performance objectives, such as increased horsepower, torque, or improved throttle response, will guide the cam grinder in creating a camshaft that meets your needs. Different designs can produce varying results, so having a clear goal is essential for the best outcome.
- What are your budget constraints? Establishing a budget early in the process will help narrow down options and avoid overspending. Custom cam grinders may offer a range of services and price points, so knowing your budget can lead to better choices without compromising quality.
- What materials and coatings do you prefer? Inquire about the materials used in the camshaft and any coatings that may enhance durability and performance. Different materials can affect wear resistance and heat dissipation, making it essential to choose the right combination for your specific needs.
- What is the grinder’s experience and reputation? Researching the cam grinder’s background, experience, and customer reviews can provide valuable insights into their reliability and craftsmanship. A well-regarded grinder is more likely to produce a high-quality cam that meets your specifications.
- What is the estimated turnaround time? Knowing how long the custom cam grinding process will take can help you plan for your project timeline effectively. Some grinders offer quicker services while others may take longer due to the complexity of the work involved.
- What kind of support and warranty do they provide? It’s important to understand the level of support offered post-sale, including warranties or guarantees on the camshaft. A reputable grinder should provide assurances regarding their work and be available for any questions or issues that arise later.