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Introduction: Why Engine Mounts Matter on the Honda Civic Type R
The Honda Civic Type R has long been celebrated as a benchmark for front‑wheel‑drive performance, combining track‑focused chassis tuning with enough daily usability to serve as a commuter. While much of the aftermarket discussion revolves around power adders, suspension, and braking systems, one critically overlooked component is the engine mount system. Stock engine mounts on the FK8 and FL5 generations are engineered for a balance of comfort and durability, but they inherently allow significant engine movement under load. This motion robs the driver of precise throttle response, contributes to wheel hop during hard launches, and softens shift feel. Upgrading to performance engine mounts addresses these shortcomings by creating a stiffer connection between the powertrain and the chassis, resulting in reduced unwanted vibration, more direct power delivery, and a measurable improvement in driving dynamics.
This article provides an in‑depth look at performance engine mounts for the Honda Civic Type R, covering the different materials and designs available, the real‑world benefits and trade‑offs, specific recommendations for both the FK8 (2017‑2021) and FL5 (2023‑present) models, and a practical guide to installation and maintenance. Whether you are building a dedicated track car or simply want a more engaging street driving experience, understanding engine mounts is essential for unlocking the full potential of your Type R.
Understanding Engine Mounts in a Honda Civic Type R
Engine mounts are rubber or polyurethane bushings that secure the engine and transmission assembly to the vehicle’s subframe and chassis. In the Civic Type R, the system typically consists of three or four main mounts: the upper torque mount (often called the “dogbone” mount), the lower torque mount (sometimes integrated into the rear mount), the passenger‑side mount, and the driver‑side mount. The torque mounts are particularly critical because they control the rotational forces generated by the engine’s torque application. A softer mount absorbs these forces to improve cabin comfort, but at the expense of movement. The FK8 and FL5 share a similar mount layout, although the specific part numbers and bushing hardness differ slightly. Understanding which mount does what helps you prioritize upgrades: stiffer torque mounts yield the most noticeable gains in throttle response and gear engagement, while side mounts contribute more to overall engine stability during lateral cornering.
Limitations of the Stock Mounts
Honda’s factory engine mounts are designed to meet NVH (noise, vibration, harshness) targets for the mass market. The rubber bushings are relatively soft, allowing the engine to shift noticeably under heavy throttle or when lifting off mid‑corner. This movement directly translates to several performance penalties:
- Wheel hop – During hard launches, the engine rocks back, unweighting the front tires and causing the driven wheel to bounce. This not only kills acceleration but can stress driveline components.
- Sluggish throttle response – A mushy engine mount causes a delay between your right foot and the wheels because the engine first has to overcome the compliance in the mount before torque reaches the road.
- Imprecise shifter feel – The transmission moves relative to the shift cables, making gear engagement feel vague and notchier, especially under load.
- Premature mount failure – Aggressive driving on the street or track can tear the rubber bushings, leading to metal‑on‑metal contact and further degradation of performance.
Many Type R owners report that the stock mounts begin to feel excessively sloppy after a few thousand miles of spirited driving, indicating that an upgrade is one of the most cost‑effective modifications available.
How Performance Engine Mounts Improve the Type R
Aftermarket mounts replace the factory rubber with stiffer materials such as high‑durometer polyurethane or aluminum with elastomer inserts. The primary benefit is a drastic reduction in engine movement, which in turn improves several aspects of the driving experience:
Vibrations and NVH Trade‑offs
It is a common misconception that performance mounts always increase cabin vibration to an intolerable level. In reality, the amount of vibration transmitted depends on the material hardness (durometer) and the design of the mount. Polyurethane mounts between 75A and 85A (Shore hardness) are a popular choice because they offer a significant stiffness increase over rubber while retaining a small amount of damping. Drivers report a noticeable increase in low‑frequency vibration at idle and under light load, but this generally fades once the engine is under power. Solid aluminum mounts (often with threaded inserts) transmit the most vibration and are best reserved for track‑only cars where NVH is not a concern. Many manufacturers now offer “street” versions with progressive durometer inserts that provide a good compromise—stiff enough to eliminate wheel hop, yet compliant enough for daily commuting.
Power Transfer and Throttle Response
With less compliance in the driveline, every input from the accelerator pedal is transmitted more directly to the wheels. This is especially noticeable during gear changes: the engine stays in its intended position relative to the transmission, allowing the synchronizers to engage without the momentary lag caused by mount flex. On track, this translates to faster lap times because you can get back on the power earlier without unsettling the chassis.
Eliminating Wheel Hop
Wheel hop is a major issue on high‑torque front‑wheel‑drive cars. Stiffer mounts keep the engine and transmission in place, preventing the violent oscillation that occurs when the tires break traction. The result is a smooth, consistent launch and reduced stress on the axles and differential. Many Type R owners who have upgraded to polyurethane mounts report that wheel hop disappears entirely, even with sticky tires on prepped surfaces.
Improved Steering Feel and Chassis Feedback
Because the engine is now a more rigid part of the chassis, the steering wheel communicates more information about what the front tires are doing. You can feel the weight transfer more accurately during corner entry, which helps you modulate the throttle and steering inputs with greater precision. This is a subtle but rewarding improvement that enhances the connection between driver and machine.
Materials and Construction: Choosing the Right Mount
Performance engine mounts for the Civic Type R are available in several configurations. The table below summarizes the key characteristics of the most common options:
| Material | Typical Durometer | NVH Level | Performance Gain |
|---|---|---|---|
| Rubber (stock) | 60‑70A | Low | None |
| Polyurethane (street) | 75‑85A | Moderate | High – eliminates wheel hop, sharpens throttle |
| Polyurethane (race) | 90‑95A | High | Very high – minimal movement, track focus |
| Aluminum with bushing inserts | Varies (40‑70A insert) | Medium‑high | Very high – rigid carrier, tunable insert stiffness |
| Solid aluminum (no bushing) | N/A | Extreme | Maximum – race use only |
Polyurethane is the most popular choice for street‑driven Type R builds because it offers the best balance of cost, durability, and performance. Reputable brands such as HASport, 27WON, and PRL Motorsports produce polyurethane mounts specifically designed for the FK8 and FL5. Aluminum mounts with replaceable elastomer inserts (e.g., from HASport) allow you to fine‑tune the stiffness by swapping the insert. Some owners choose a stiffer insert for the torque mounts and a softer one for the side mounts to manage NVH. Solid aluminum mounts are essentially a direct metal‑to‑metal connection; they transmit every engine vibration and are only recommended for race cars that never see public roads.
Choosing the Right Mount for Your Civic Type R
Daily Driver / Street Focus
If you primarily commute and drive on the street with occasional spirited back‑road sessions, look for polyurethane mounts in the 75A‑80A range. HASport’s “Street” series mounts for the Civic Type R are a proven choice, offering a 40% stiffness increase over factory rubber while still maintaining a livable idle. 27WON’s “Stage 1” motor mount kit similarly provides a noticeable improvement without turning the car into a rattletrap. For the FL5, PRL’s Torque Mount Insert is a simple way to stiffen the upper torque mount without replacing the entire assembly—a good entry‑level upgrade.
Street / Track Hybrid
For owners who participate in track days or autocross events but still drive the car to the venue, consider 85A‑90A polyurethane mounts or aluminum mounts with street‑durometer inserts. HASport offers a “Sport” series with 85A durometer that eliminates wheel hop even with sticky tires, yet the NVH is described as “acceptable” for a dual‑purpose car. 27WON’s Stage 2 mounts use a higher durometer bushing and are often paired with an upgraded rear motor mount for maximum stability.
Dedicated Track / Race Use
For a full‑race Civic Type R that rarely sees the street, solid aluminum mounts or 95A polyurethane are the way to go. Brands like Innovative Mounts and AWR produce mounts with very high durometer bushings (95A) that lock the engine in place completely. Be prepared for significant interior vibration, especially at idle, and consider upgrading your shift cables and transmission mounts to work in harmony.
When in doubt, consult the manufacturer’s compatibility chart for your specific model year. The FK8 and FL5 have different engine bay layouts, so mounts are not interchangeable. Always verify fitment before purchasing.
Installation Guide and Common Pitfalls
Installing performance engine mounts on a Civic Type R is a straightforward procedure for someone with intermediate mechanical skills, but it requires attention to detail to avoid damaging the mounts or the vehicle. Below is an outline of the general process, but always refer to the manufacturer’s included instructions:
- Safety and preparation – Disconnect the battery, safely lift and support the vehicle on jack stands, and remove the underbody panels as needed. A transmission jack or floor jack with a block of wood is essential to support the engine/transmission assembly.
- Remove the upper torque mount – This is the easiest mount to access. Unbolt the mount from the chassis and the transmission bracket, then lift the mount out. Replace with the new performance mount and torque to spec (typically 45‑55 ft‑lbs for the chassis bolt and 35‑45 ft‑lbs for the transmission side on the FK8; check your service manual).
- Remove the lower torque mount / rear mount – This mount is located near the subframe on the driver’s side. You will need to support the engine from below. Unbolt the mount, remove it, and install the new one. A common mistake is to torque the mount without ensuring the engine is in its static neutral position—otherwise the mount will be pre‑loaded and cause excessive vibration. To avoid this, loosen all mount bolts, lower the engine onto a jack until it sits naturally, then torque the mounts.
- Replace side mounts (passenger and driver) – These require removing the battery tray (passenger side) and sometimes the intake air box. Use the same procedure: support the engine, remove the old mount, install the new one, and pre‑torque loosely. After all mounts are installed, tighten them in the order specified by the manufacturer (usually the torque mount first, then side mounts).
- Test and recheck – Lower the vehicle, start the engine, and let it idle. You will likely notice increased vibration—that is normal. Allow the mounts to settle for a few hundred miles, then recheck the torque on all bolts.
Common pitfalls include over‑torquing the aluminum chassis points (causing thread damage), failing to support the engine adequately (straining the remaining mounts), and reusing old bolts (security‑fasteners often have thread‑locking compound; replace them if specified). If you are not comfortable with the process, a professional installation typically costs between $200 and $400 and can save you the headache of diagnosing noise issues later.
Maintenance and Longevity
Performance engine mounts, particularly polyurethane, are durable but not wear‑proof. Over time, the bushing material can degrade due to heat, oil exposure, and constant flexing. Inspect your mounts every 10,000‑15,000 miles and after every track event. Look for signs of cracking, tearing, or excessive surface crazing. If you notice increased vibration that was not present before, it may indicate that a bushing has softened or failed. Aluminum mounts with replaceable inserts are a smart investment because you can simply swap the bushing without replacing the entire mount. Always keep the mounts clean—oil leaks from a valve cover gasket can accelerate polyurethane deterioration. With proper care, a good set of polyurethane mounts will outlast the factory rubber mounts by several years, especially if you use anti‑seize on the hardware during installation.
Conclusion
Performance engine mounts are one of the highest‑impact modifications you can make to a Honda Civic Type R for the money. They directly address the sloppiness inherent in the stock rubber mounts, virtually eliminating wheel hop, sharpening throttle response, and providing a more direct connection between driver and drivetrain. While the trade‑off in increased NVH is real, modern polyurethane mounts from respected manufacturers like HASport, 27WON, and PRL Motorsports offer a compromise that suits a wide range of use cases—from daily commuting to full track duty. By carefully matching the mount stiffness to your driving style and following proper installation procedures, you can transform the way your Type R delivers power and handles without sacrificing reliability. Whether you are chasing tenths on a circuit or simply want a more engaging daily drive, upgrading the engine mounts unlocks the full potential of one of the most accomplished front‑wheel‑drive platforms ever built.
Editor’s note: Always verify compatibility with your specific model year and trim level. Torque specifications and procedures may vary. For more detailed technical information, refer to the OEM service manual or contact the mount manufacturer directly.
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