20/03/2020
When it comes to maximising the potential of a high-performance engine, every component plays a crucial role. For those seeking the absolute pinnacle of air intake efficiency and responsiveness, Individual Throttle Bodies (ITBs) represent a significant upgrade over traditional single throttle body setups. Among the leading names in this specialised field, Kinsler stands out, offering a product that is not just an upgrade, but a bespoke solution for enthusiasts and racers alike.
What are Kinsler ITBs and Why Choose Them?
Kinsler Individual Throttle Bodies (ITBs) are a sophisticated air intake system where each cylinder of an engine has its own dedicated throttle body. This contrasts with a conventional setup where a single throttle body controls airflow to all cylinders via a shared intake manifold. The primary advantage of ITBs is the direct and precise control of airflow to each cylinder, leading to:
- Improved Throttle Response: Each cylinder receives an immediate and unhindered air supply, resulting in a sharper, more immediate response to throttle inputs.
- Enhanced Power Output: By optimising airflow to each cylinder, ITBs can lead to significant gains in horsepower and torque, particularly in the mid-range.
- Better Fuel Economy: More precise air-fuel mixture control can contribute to improved fuel efficiency, especially during cruising.
- Distinctive Induction Sound: The individual operation of the throttle bodies creates a highly desirable and aggressive induction note.
Kinsler ITBs are renowned for being the best individual throttle body system available on the market for those serious about achieving maximum horsepower. Their customisation options are extensive, allowing tuners to tailor the system precisely to their engine's specific requirements and the desired performance characteristics. This level of bespoke engineering sets Kinsler apart.
Unrivalled Customisation Options
The true strength of Kinsler ITBs lies in their unparalleled customisation. Unlike many off-the-shelf ITB kits that offer limited adaptability, Kinsler provides a truly bespoke solution. This allows you to fine-tune the intake system to perfectly complement your engine's unique build, ensuring no component becomes a bottleneck.
Key Customisation Features:
- Throttle Plate Size: You can select the ideal throttle plate diameter to match your engine's displacement and airflow requirements. Available sizes include 51mm, 55mm, 57mm, 60mm, 62mm, 64mm, 67mm, and 70mm.
- Runner Length: Kinsler can specify the optimal runner length to tune the engine's torque curve, enhancing low-end grunt or high-RPM power as desired.
- Injector Rail Configuration: Options for primary and secondary injector rails are available, allowing for staged fuel injection for more precise fuel delivery across the rev range.
- CNC Matching: For the ultimate in airflow optimisation, Kinsler can CNC match the intake runners to your specific cylinder head port. This eliminates any discrepancies between the ITB and the cylinder head, ensuring a seamless flow path. This is particularly important for heavily ported or aftermarket cylinder heads, where standard ITBs might become a restriction.
Material and Finish Options:
Beyond the core performance-related customisations, Kinsler also offers aesthetic choices to match your build:
- Material: Choose between lightweight Aluminium or the even lighter and more exotic Magnesium for the throttle body construction.
- Colour: Available in Red, Blue, Black, Silver, or a custom 4-piston colour scheme to perfectly match your engine bay's theme.
Injector Type and Inlet Angle:
Further customisation extends to:
- Injector Type: Select the type of fuel injectors that best suit your engine's fuel delivery system.
- Inlet Angle: The inlet angle can be adjusted by up to 15 degrees to provide crucial extra hood clearance, a vital consideration in many custom builds.
Flow Characteristics: The Kinsler Advantage
One of the most critical aspects of any intake system is its ability to flow air. Kinsler ITBs are designed with airflow efficiency as a paramount concern. While many ITBs on the market are designed to work with stock or mildly ported cylinder heads, Kinsler's customisation ensures that their ITBs can keep pace with even the most aggressively ported heads. For instance, a 62mm set of Kinsler ITBs can flow an impressive 410cfm on a flow bench. This is more than sufficient to allow even a highly modified cylinder head to breathe freely, preventing the ITB itself from becoming a performance-limiting factor.
To put this into perspective, consider the following:
| Throttle Body Size (mm) | Approximate Flow Rate (CFM) | Typical Application |
|---|---|---|
| 51 | ~280 | Smaller displacement, naturally aspirated engines |
| 55 | ~320 | Mildly modified naturally aspirated engines |
| 60 | ~370 | Performance naturally aspirated, mild forced induction |
| 62 | 410 | Highly modified naturally aspirated, moderate forced induction |
| 67 | ~460 | High-output forced induction, race engines |
| 70 | ~500+ | Extreme racing applications |
Note: These are approximate flow rates and can vary based on specific design and testing conditions. Kinsler's ability to CNC match to cylinder heads further optimises actual in-engine flow.
The Ordering Process: A Personalised Approach
Kinsler's commitment to a tailored solution extends to their ordering process. When you add a Kinsler ITB manifold to your cart and proceed to purchase, you're not just buying a part; you're initiating a consultation. Kinsler will contact you directly to discuss your specific engine combination, your performance goals, and what you aim to achieve with the ITB system. This conversation allows them to recommend the most suitable runner length and throttle body size for your application.
Alternatively, you can simply call Kinsler directly to discuss your needs and receive expert guidance. This personalised approach ensures that you receive a system that is perfectly matched to your engine, avoiding guesswork and potential compatibility issues.
Lead Time and Availability
It's important to note that Kinsler ITBs are typically MADE TO ORDER. This bespoke manufacturing process means that delivery can take between 6 to 8 weeks. For those with urgent build schedules, it is advisable to call Kinsler in advance to inquire about current stock levels and potential lead times for your specific configuration.
Frequently Asked Questions
Q1: How do Kinsler ITBs improve engine performance?
A1: Kinsler ITBs improve performance by providing each cylinder with its own dedicated throttle body, allowing for more precise airflow control, quicker throttle response, and optimised volumetric efficiency, leading to increased horsepower and torque.
Q2: Can Kinsler ITBs be used with aftermarket cylinder heads?
A2: Yes, absolutely. In fact, Kinsler ITBs are highly recommended for use with aftermarket or heavily ported cylinder heads. Their CNC matching service ensures that the ITBs perfectly complement the cylinder head ports, preventing them from becoming an airflow restriction.
Q3: What is the typical lead time for Kinsler ITBs?
A3: Kinsler ITBs are made to order, and the typical lead time is between 6 to 8 weeks. It's always best to contact Kinsler directly to confirm current lead times or check for available stock.
Q4: What is the advantage of choosing Kinsler over other ITB manufacturers?
A4: Kinsler's key advantage is their extensive customisation. They offer a wider range of sizes, materials, and the crucial option of CNC matching to your cylinder heads, ensuring a truly bespoke system that maximises your engine's potential.
Q5: How do I determine the correct size Kinsler ITB for my engine?
A5: The best approach is to consult with Kinsler directly. They will discuss your engine's specifications, camshaft profile, intended use, and cylinder head modifications to recommend the optimal throttle body size and runner length for your specific application.
Conclusion
For enthusiasts and racers who demand the absolute best in engine tuning and performance, Kinsler Individual Throttle Bodies are the ultimate choice. Their commitment to bespoke engineering, unparalleled customisation options, and superior airflow characteristics ensure that your engine will perform at its peak. While the investment and lead time are considerations, the gains in power, response, and the sheer quality of the system make Kinsler ITBs a worthwhile investment for any serious performance build.
If you want to read more articles similar to Kinsler ITB: The Ultimate Throttle Body, you can visit the Automotive category.