Mk4 1.8 t large turbo package – MK4 1.8T large turbo package unlocks a world of exhilarating efficiency potentialities, remodeling your journey right into a beast of the highway. This complete information delves into the guts of this thrilling improve, exploring every part from set up intricacies to efficiency comparisons, and security issues.
We’ll unravel the secrets and techniques of varied turbo package sorts, highlighting potential beneficial properties and limitations. An in depth desk will break down package specs, efficiency estimates, and value ranges. Dive deep into set up procedures, troubleshooting potential hiccups, and in the end, optimizing your automobile for optimum energy and effectivity.
Overview of MK4 1.8T Huge Turbo Equipment
Unleashing the beast inside your MK4 1.8T usually requires greater than only a tune. An enormous turbo package is a big improve, remodeling the guts of your automotive and doubtlessly unleashing a torrent of energy. This improve is not for the faint of coronary heart, however the rewards may be exhilarating.A “large turbo package” for an MK4 1.8T primarily swaps the manufacturing unit turbocharger with a bigger, higher-capacity unit.
This modification dramatically will increase airflow, permitting for a big enhance in horsepower and torque. The exact nature of the improve hinges on the particular package chosen.
Frequent Kinds of Huge Turbo Kits
Totally different large turbo kits cater to varied efficiency targets and budgets. Some kits deal with attaining substantial energy beneficial properties, whereas others prioritize reliability and ease of set up. Understanding the nuances of every package kind is essential for making an knowledgeable determination.
Equipment Traits and Efficiency Good points
| Equipment Sort | Turbo Specs | Horsepower Acquire | Price Vary |
|---|---|---|---|
| Garrett GT3076R Equipment | Bigger compressor wheel, elevated turbine circulate. Typically contains upgraded exhaust manifolds and piping. | Usually 250-350 hp acquire over inventory. Efficiency is extremely depending on the particular tuning and supporting modifications. | $2,500-$4,000 |
| BorgWarner EFR Equipment | Recognized for its environment friendly design and sturdiness. Typically paired with customized consumption techniques for optimum efficiency. | Comparable efficiency to the GT3076R package, however could exhibit barely completely different traits relying on the particular package and configuration. | $2,000-$3,500 |
| Customized Constructed Equipment | Tailor-made to particular person wants and efficiency targets. Permits for exact element choice and optimization. | Probably larger horsepower beneficial properties in comparison with off-the-shelf kits, however value and complexity can range tremendously. | $4,000+ |
These are only a few examples, and the market gives many different choices. Every package has a singular set of specs and related prices. Cautious consideration of your funds, desired efficiency, and expertise degree will assist you choose the most suitable choice to your MK4 1.8T.
Set up and Modification Procedures
Remodeling your MK4 1.8T with an enormous turbo package is a rewarding journey, however meticulous planning and execution are key. This part delves into the sensible elements of set up, guaranteeing a easy and profitable improve. The detailed procedures and troubleshooting steps will information you thru each stage, from preliminary preparations to closing changes.The set up course of entails cautious disassembly and reassembly of current elements, alongside the combination of the brand new turbo package.
Correct execution of those steps is essential to realize optimum efficiency and stop potential points. Thorough understanding of the modifications and obligatory changes is significant for a profitable end result. This part offers complete steerage, equipping you with the information and steps wanted for a seamless set up.
Disassembly and Part Preparation
Earlier than diving into the set up, meticulous disassembly is crucial. This course of entails fastidiously disconnecting varied elements, preserving their unique positions for reassembly. Documentation of the unique positions and connections is advisable.
- Disconnect the battery to keep away from electrical hazards.
- Take away the air consumption system, guaranteeing cautious dealing with of hoses and connections.
- Disconnect the intercooler hoses and contours for straightforward entry to the turbocharger meeting.
- Take away the outdated turbocharger meeting following the producer’s directions. Correct instruments and methods are very important for secure elimination.
Modifications and Changes
Particular modifications are essential to accommodate the brand new turbo package. These modifications are essential for seamless integration and optimized efficiency. Fastidiously comply with the producer’s directions to make sure correct alignment and performance.
- Improve the exhaust system to deal with the elevated exhaust output. This usually entails changing the downpipe and exhaust manifold.
- Modify the engine mounts to accommodate the elevated energy and torque output of the large turbo package.
- Set up a bigger intercooler to handle the elevated air temperature.
- Improve the gasoline system to deal with the elevated gasoline demand. This may occasionally contain a gasoline pump improve and/or gasoline injectors.
Required Instruments and Components
A complete toolkit is crucial for the set up course of. Guarantee you have got all the mandatory instruments and elements to reduce downtime and potential points.
- Varied sockets, wrenches, and screwdrivers are required for disassembling and reassembling elements.
- A torque wrench is crucial for tightening fasteners to the right specs.
- Particular instruments for working with exhaust techniques are obligatory, corresponding to exhaust clamps and pipe cutters.
- Excessive-quality hoses and clamps are required for connecting the intercooler, exhaust, and different techniques.
Step-by-Step Set up Process
An in depth step-by-step process, illustrated with diagrams (if relevant), is essential for a profitable set up.
- Fastidiously set up the brand new turbocharger meeting, guaranteeing right alignment and safe connections.
- Reattach the intercooler hoses and contours, guaranteeing correct connection and sealing.
- Reconnect the air consumption system, double-checking for leaks and correct fitment.
- Reconnect the exhaust system, verifying correct connection and securing the exhaust clamps.
- Reconnect the gasoline system elements and guarantee correct connections.
- Confirm all connections and tighten all fasteners to producer specs utilizing a torque wrench.
- Begin the engine and carry out an intensive test for leaks and strange noises. Tackle any points promptly.
Potential Issues and Troubleshooting
| Set up Section | Potential Issues | Troubleshooting Steps |
|---|---|---|
| Turbocharger Set up | Misalignment, incorrect tightening | Re-check alignment, use a torque wrench, seek the advice of the producer’s guide. |
| Intercooler Set up | Leaks, improper connection | Verify for leaks, re-tighten connections, use high-quality hoses and clamps. |
| Gas System Set up | Leaks, inadequate gasoline stress | Verify for leaks, guarantee correct gasoline stress, seek the advice of a mechanic if obligatory. |
| Exhaust System Set up | Leaks, improper exhaust clamps | Verify for leaks, re-tighten exhaust clamps, use correct instruments and methods. |
Efficiency Comparability and Tuning
Unleashing the total potential of your MK4 1.8T requires a eager understanding of massive turbo kits and their efficiency traits. Choosing the proper package and tuning technique is essential for maximizing energy and effectivity whereas sustaining engine well being. This part delves into the nuances of varied kits, tuning approaches, and their influence on the engine’s lifespan.A well-tuned large turbo setup can considerably improve the MK4 1.8T’s efficiency, nevertheless it’s very important to keep in mind that efficiency modifications usually include trade-offs.
Cautious consideration of tuning methods and potential modifications is vital to attaining optimum outcomes whereas preserving the long-term well being of your engine.
Efficiency Comparability of Huge Turbo Kits
Totally different large turbo kits supply various ranges of efficiency. Elements corresponding to compressor maps, turbine housing designs, and total element high quality affect the output. Some kits deal with low-end torque, whereas others excel in high-rpm energy supply. Contemplate your driving fashion and supposed use when choosing a package.
- Equipment A: This package, recognized for its aggressive design, usually delivers substantial beneficial properties in horsepower at larger RPM ranges. It would require extra subtle tuning for optimum efficiency throughout your entire RPM spectrum.
- Equipment B: This package emphasizes a broader powerband, with spectacular torque output throughout a wider vary of engine speeds. It is likely to be extra appropriate for on a regular basis driving or spirited road use.
- Equipment C: Recognized for its reliability and effectivity, this package strikes a stability between efficiency and longevity. Whereas it won’t supply the height energy of different kits, it is usually a safer possibility for these prioritizing a dependable setup.
Tuning Methods for Optimum Efficiency
Optimizing efficiency entails adjusting engine parameters to leverage the turbo’s capabilities. Totally different tuning methods goal particular elements of engine conduct, from gasoline supply to ignition timing.
- Engine Administration Tuning: A vital ingredient in maximizing efficiency. Software program modifications permit for exact changes to gasoline maps, ignition curves, and different engine parameters. This fine-tuning can considerably influence energy output and effectivity.
- Gas Supply: Growing gasoline supply is significant for supporting larger energy outputs. This requires fastidiously calibrated gasoline pumps and injectors. A mismatched gasoline system can result in diminished efficiency or engine injury.
- Ignition Timing: Optimizing ignition timing enhances combustion effectivity, instantly impacting energy and torque. Nonetheless, extreme changes can compromise engine longevity.
Influence of Tuning Choices on Engine Reliability and Longevity, Mk4 1.8 t large turbo package
Aggressive tuning methods can considerably have an effect on the engine’s lifespan. Whereas elevated efficiency is commonly the purpose, engine well being needs to be a precedence.
- Engine Parts: Excessive-power setups usually require upgraded elements like stronger connecting rods, pistons, and bearings to deal with the elevated stress. Upgrading these elements can improve reliability.
- Cooling System: Elevated energy calls for necessitate a sturdy cooling system. Modifications to the cooling system, together with upgraded radiators, followers, and thermostats, are important for guaranteeing dependable operation.
- Upkeep Schedule: A complete upkeep schedule is crucial for guaranteeing the long-term well being of a tuned engine. Elevated energy usually calls for extra frequent oil modifications and element inspections.
Exhaust and Consumption System Modifications
Modifying exhaust and consumption techniques can considerably influence efficiency. Optimizing airflow and exhaust fuel circulate is vital.
- Exhaust System: A free-flowing exhaust system is essential for improved efficiency. Excessive-performance exhaust techniques usually function optimized mufflers and downpipes to reduce backpressure and maximize exhaust velocity.
- Consumption System: Optimizing the consumption system improves airflow, contributing to raised efficiency. Modifications embody chilly air intakes, high-flow filters, and upgraded consumption manifolds.
Dyno Chart Examples
Dyno charts visually symbolize efficiency beneficial properties achieved by means of varied tuning choices. The charts under illustrate the potential enhancements attainable with completely different large turbo kits and tuning methods.
Instance Dyno Chart A (Equipment A): Demonstrates important beneficial properties in horsepower and torque at larger RPM ranges. Word the noticeable distinction in energy supply in comparison with inventory.
Instance Dyno Chart B (Equipment B): Exhibits a broader powerband with notable torque output throughout a variety of RPM.
Instance Dyno Chart C (Equipment C): Shows balanced efficiency throughout the RPM spectrum, highlighting a smoother and extra constant energy supply in comparison with different kits.
Issues for Selecting a Equipment
Choosing the proper large turbo package to your MK4 1.8T is essential for maximizing efficiency and reliability. It is not nearly slapping on an even bigger turbo and hoping for the perfect; meticulous consideration is vital to avoiding complications down the road. Correct planning ensures a easy improve journey, turning your dream of boosted efficiency right into a actuality.Understanding the intricacies of your current engine and drivetrain, alongside an intensive evaluation of obtainable kits, is significant.
This part delves into the crucial elements to contemplate when choosing an enormous turbo package, from compatibility to value evaluation. This detailed strategy empowers you to make an knowledgeable determination, guaranteeing your MK4 1.8T improve delivers the facility and reliability you need.
Compatibility with Current Engine and Drivetrain
Compatibility is paramount. A package designed for a selected engine configuration will not seamlessly combine with a special one. Fastidiously study the package’s specs to make sure it aligns together with your engine’s current elements, together with the block, head, and crankshaft. The turbocharger’s dimensions and mounting factors should even be suitable together with your engine bay structure. Mismatched elements can result in severe points, hindering efficiency and doubtlessly damaging your engine.
This meticulous analysis is crucial to keep away from expensive modifications and make sure the package seamlessly integrates into your current setup.
Model and Producer Comparability
Totally different manufacturers supply various ranges of high quality, efficiency, and help. Researching respected producers is crucial. Search critiques and testimonials from different homeowners who’ve put in related kits. This permits for a extra complete understanding of potential strengths and weaknesses of every model. Contemplate elements corresponding to construct high quality, engineering experience, and customer support responsiveness.
Understanding these elements helps guarantee you choose a package that aligns together with your expectations and future help wants.
Price Evaluation
The full value of an enormous turbo package improve goes past the package’s price ticket. Contemplate the price of set up, which may range considerably based mostly in your mechanical expertise and entry to specialised instruments and services. Skilled set up by a certified mechanic will probably add to the associated fee, however ensures correct set up, minimizing potential points. Moreover, tuning is essential for optimum efficiency and effectivity.
Count on extra bills for tuning, which could embody dyno testing and software program changes. A complete value evaluation will present a transparent image of the general monetary dedication concerned.
Efficiency and Reliability Comparability
| Equipment Model | Worth (USD) | Estimated Efficiency (HP) | Reliability Score (1-5, 5 being highest) |
|---|---|---|---|
| TurboTech | $2,500 – $3,500 | 300-350 | 4 |
| Apex | $3,000 – $4,000 | 350-400 | 4.5 |
| Customized Constructed | Variable | Variable | Variable |
This desk offers a normal comparability of potential kits. Costs and efficiency figures are estimates and may range considerably relying on particular configurations and choices. Reliability scores are based mostly on reported experiences and critiques. Seek the advice of with skilled mechanics or on-line communities for extra detailed and up-to-date info. Do not forget that a better value would not all the time equate to superior efficiency or reliability.
Thorough analysis and analysis of the package’s elements and engineering are important.
Potential Points and Upkeep
This part delves into the potential pitfalls and proactive measures to make sure the longevity and dependable efficiency of your MK4 1.8T large turbo package. Understanding these points empowers you to make knowledgeable choices about upkeep and stop expensive repairs down the highway. Correct care and a focus to element will translate right into a rewarding driving expertise.
Turbocharger Failure
Turbocharger failure is a typical concern with high-performance setups. Extreme enhance pressures, inadequate oil circulate, and contaminated oil are important contributing elements. Common oil modifications, utilizing high-quality artificial oil, and checking oil stress are essential preventive measures. The turbocharger is a crucial element, and its failure can result in important downtime and restore prices.
Increase Leaks
Increase leaks are one other potential drawback. These can stem from varied sources, together with broken hoses, gaskets, or connections. Visible inspections and stress checks are important for early detection. Promptly addressing any recognized leaks is significant to keep up optimum efficiency and stop additional injury. A meticulous strategy to hose and gasket substitute can guarantee a lift leak-free expertise.
Upkeep Procedures
Common upkeep is vital to a long-lasting large turbo package. A well-maintained package interprets to raised efficiency and an extended lifespan. A complete upkeep schedule ought to embody:
- Common oil modifications utilizing high-quality artificial oil, adhering to the producer’s suggestions.
- Systematic inspection of all hoses, gaskets, and connections for indicators of harm or put on.
- Monitoring of enhance stress and oil stress throughout operation, utilizing applicable gauges.
- Cautious consideration to intercooler operation and cleanliness.
These proactive measures are crucial for the well being of your large turbo package.
Preventative Measures
Preventative measures go hand in hand with common upkeep to increase the lifespan of your turbo package. These embody:
- Utilizing high-quality, high-temperature-resistant elements.
- Implementing a sturdy cooling system to manage temperature and stop thermal stress.
- Guaranteeing correct air consumption filtration to keep away from contaminants getting into the turbocharger.
- Using high quality {hardware} for all connections and mounts to stop loosening or breakage.
Components Alternative/Improve
Contemplate these elements for improve or substitute to reinforce the longevity of your large turbo package:
- Excessive-flow oil strains for improved oil supply.
- Excessive-quality turbocharger bearings and seals for prolonged service life.
- Upgraded intercooler core for enhanced cooling capability.
- Improved enhance controller for exact enhance stress management.
These upgrades can considerably lengthen the lifespan and efficiency of your system.
Troubleshooting Frequent Points
- Low enhance stress: Confirm enhance stress readings and guarantee all connections are safe. Verify for enhance leaks and make sure the air consumption is unobstructed.
“Increase stress issues are sometimes brought on by a mixture of points, not only one single issue.”
- Turbocharger whistling or whining sound: This may occasionally point out an issue with the bearings or seals. Have the turbocharger inspected by knowledgeable mechanic.
“A whistling sound is a warning signal and should not be ignored.”
- Oil leaks: Examine for leaks across the turbocharger, oil strains, and associated elements. Tackle any recognized leaks promptly.
“Tackle oil leaks instantly to stop important injury.”
Engine Administration and Management: Mk4 1.8 T Huge Turbo Equipment
An enormous turbo package unlocks severe energy, however unleashing that energy responsibly calls for a refined strategy to engine administration. Correct management is essential for each efficiency and longevity. Ignoring this facet can result in points starting from poor gasoline economic system to potential engine injury. Let’s delve into the important function of engine administration on this enhanced powertrain setup.Engine management items (ECUs) are the brains of the operation, meticulously managing gasoline supply, ignition timing, and different crucial parameters.
An enormous turbo package, with its elevated calls for, requires a devoted ECU to keep up optimum efficiency and security. Tuning is crucial to optimize the ECU’s management for the improved energy output, enabling the automobile to carry out safely and effectively.
ECU Modifications for Optimum Management
Correct engine administration with an enormous turbo package necessitates changes to the manufacturing unit ECU or a full-fledged remap. The manufacturing unit calibration is not designed for the additional enhance; modifications are wanted for exact management. This ensures that the engine features appropriately underneath high-pressure circumstances and that the turbocharger would not expertise pressure. Modifications will usually embody optimized ignition timing and gasoline maps, tailor-made to the elevated airflow and stress.
In essence, the ECU turns into the conductor of the turbocharged symphony, guaranteeing easy and highly effective operation.
Tuning Methods and Efficiency Impacts
Varied tuning methods exist for managing the engine’s response to the upgraded turbo system. Totally different approaches influence gasoline effectivity and emissions. A technique centered on maximizing energy may sacrifice some gasoline economic system. Conversely, a extra conservative strategy could yield improved gasoline effectivity at the price of some energy. The choice of the tuning technique usually is determined by the motive force’s priorities and the particular efficiency targets.
Totally different ECU Tuning Choices and Their Results
| Tuning Possibility | Efficiency Influence | Gas Effectivity | Emissions |
|---|---|---|---|
| Aggressive Energy Tuning | Most energy output, doubtlessly aggressive throttle response | Decreased gasoline economic system | Elevated emissions, doubtlessly exceeding regulatory limits |
| Balanced Tuning | Good stability of energy and gasoline effectivity | Average gasoline economic system | Average emissions |
| Effectivity Tuning | Optimized for gasoline economic system | Improved gasoline economic system | Decrease emissions |
These tuning choices symbolize a spectrum of selections, every influencing efficiency in numerous methods. Cautious consideration of the trade-offs between energy, gasoline economic system, and emissions is crucial when choosing a tuning technique. Bear in mind, there is no one-size-fits-all answer; the perfect strategy is determined by the particular wants and priorities of the motive force.
Security and Authorized Elements
An enormous turbo package improve can considerably improve your MK4’s efficiency, nevertheless it’s essential to strategy this modification with a safety-first mindset and a eager consciousness of the authorized panorama. Correct set up, adherence to laws, and understanding of insurance coverage implications are paramount. This part will discover these crucial areas, guaranteeing you make knowledgeable choices and revel in your boosted journey safely and legally.This part delves into the very important elements of security and legality surrounding the set up and operation of an enormous turbo package.
We’ll study the potential hazards, authorized limitations, and the function of insurance coverage on this context. Understanding these elements is crucial for a secure and accountable modification.
Security Issues Throughout Set up
Correct set up procedures are paramount for security. Improper set up can result in catastrophic failures, doubtlessly inflicting hurt to the installer or others. A radical understanding of the set up course of is essential. At all times prioritize security throughout all phases of the modification.
- Thorough Planning and Preparation: Detailed planning and meticulous preparation are important. This entails understanding the package’s specs, having the proper instruments, and assembling the required gear.
- Skilled Set up or Knowledgeable Steering: Contemplate skilled set up for intricate duties, particularly should you lack expertise with such modifications. Should you select DIY, search steerage from skilled mechanics or on-line assets. An in depth understanding of the method is paramount for a secure end result.
- Environmental Elements: Make sure the work space is well-ventilated and free from distractions. Correct lighting and applicable protecting gear (eye safety, gloves, and many others.) are essential.
- Part Integrity: At all times examine all elements for any indicators of harm or put on earlier than set up. Defective elements can compromise the system’s integrity, doubtlessly resulting in harmful conditions.
Authorized Implications and Rules
Modifying your automobile can have authorized implications. Totally different jurisdictions have various laws concerning automobile modifications. Understanding native legal guidelines is crucial to keep away from authorized points.
- Native Ordinances: Analysis native ordinances and laws regarding automobile modifications. Some areas have restrictions on efficiency upgrades and exhaust techniques.
- Insurance coverage Issues: Modifications can influence your automobile insurance coverage. Contact your insurer to know how the modifications may have an effect on your protection. Hold detailed data of any modifications made.
- Emission Requirements: Guarantee any modifications adjust to emission requirements. Exceeding these requirements can result in penalties.
- Modifications and Registration: Verify together with your native Division of Motor Autos (DMV) about modifications and registration necessities. Some jurisdictions could require registration updates or inspections after main upgrades.
Automobile Modifications and Insurance coverage
Insurance coverage suppliers usually regulate protection based mostly on modifications. Perceive the influence in your coverage.
- Coverage Changes: Modifications, particularly efficiency upgrades, may result in changes in your insurance coverage premiums. Be ready for potential will increase in premiums.
- Understanding Protection: Overview your insurance coverage coverage to know how modifications influence your protection. Modifications can have an effect on legal responsibility, collision, and complete protection.
- Doc Modifications: Preserve correct data of all modifications, together with dates, elements used, and any related work. This documentation may be very important if there are any claims.
Security Options and Enhancements
Sure security options needs to be thought of or modified to make sure enhanced security throughout operation.
- Braking System: Improve braking elements to deal with the elevated energy output. This may contain a extra highly effective braking system, corresponding to upgraded calipers or rotors.
- Cooling System: A extra highly effective turbocharger calls for a extra environment friendly cooling system. Guarantee ample cooling capability to stop overheating points.
- Suspension: Modifications may require a suspension improve to handle the elevated weight and energy. A stronger and extra secure suspension might help stop dealing with points and accidents.
- Further Security Options: Contemplate extra security options like a roll cage or a stronger chassis to reinforce total security.
Producer’s Suggestions and Necessities
Producers present particular pointers for modifications. Adhering to those pointers is essential for security.
- Seek the advice of Manuals: Confer with the producer’s proprietor’s guide for pointers and suggestions associated to efficiency modifications.
- Compatibility: Make sure that the modifications are suitable with the automobile’s unique design and specs.
- Guarantee Implications: Perceive how modifications may have an effect on your automobile’s guarantee. Unauthorized modifications may void warranties.
Visible Illustration of a MK4 1.8T Huge Turbo Equipment Set up
Remodeling your MK4 1.8T from a succesful each day driver to a spirited performer entails greater than only a few clicks of a mouse. The visible transformation, from inventory to supercharged, is a compelling journey, showcasing the facility and precision of the improve. This part delves into the visible elements of putting in an enormous turbo package, highlighting the before-and-after variations.The set up course of, whereas intricate, is rewarding to witness.
Visible cues, just like the exact placement of elements and the meticulous consideration to element, present a transparent indication of the package’s high quality and the installer’s experience. The transition from the acquainted inventory engine bay to the improved, turbo-charged surroundings is charming.
Engine Bay Transformation
The engine bay undergoes a big metamorphosis. The visible influence is profound. Earlier than the set up, the engine bay is usually clear however unadorned. After set up, the visible influence is dramatically altered by the addition of a extra highly effective, and sometimes bigger, turbocharger, intercooler piping, and varied supporting elements. The addition of customized mounts and bracing creates a extra strong and highly effective setup.
The engine bay turns into a showcase of meticulous engineering and performance-oriented design, reflecting the package’s centered intent.
Exterior Visible Modifications
Exterior modifications, whereas delicate, contribute to the general enhanced aesthetic. The visible variations should not overly pronounced, however delicate enhancements, like a barely extra aggressive entrance bumper, can improve the automotive’s sporty look. Probably the most noticeable exterior distinction is a possible slight energy enhance which is usually noticeable by means of an improved acceleration response, usually measured by way of faster 0-60 mph instances.
Visible Depiction of the Upgraded Turbocharger
The upgraded turbocharger, a key element of the large turbo package, stands out visually. The elevated measurement and weight of the turbocharger is a direct indicator of its elevated energy output. The turbocharger’s housing, usually extra elaborate and strong than the inventory unit, will usually show a extra superior design. The visible cues point out a shift from inventory to efficiency, showcasing the turbocharger’s superior engineering and its crucial function in boosting efficiency.
Visible variations between the upgraded and inventory turbocharger are notable, together with a bigger compressor wheel, upgraded bearings, and a extra environment friendly turbine housing.
