600HP Big Turbo Audi S3 | Part 2 | Eurofed Builds

On this addition of Eurofed builds we check back on the big turbo S3. For this build our client had tasked our performance team with creating the ultimate Audi S3 that is capable of producing at minimum 600HP on pump gas. 

However the challenge was not only in producing the necessary amount of horsepower. This is to be the clients daily driver, that upgraded performance needs to have everyday reliability and drivability with minimum sacrifices. That means taking every aspect of the Audi S3’s power train into account and upgrading where necessary. With that challenge in mind the big turbo kit of choice was the Garret G3-770 Big turbo kit from PAG parts. (see parts list below)

Last time we saw the S3 it was completely disassembled and we went over what parts are necessary for building a 600HP+ Audi S3. Fast forward the S3 has been fully assembled with a fully built 2.0T by our Audi technicians and a base-line tune from EQT was uploaded to allow the motor to be broken in.

Here we discuss the importance of utilizing proper engine break-in procedures when building a high performance engine and the overall fitment of the Garret G3-770 Big turbo kit from PAG parts.

What Does It Mean To Break-in a Built High-Performance Engine? 

When assembling a built performance engine with new forged internals you are essentially building a brand new engine. While the parts are stronger and more reliable than what was originally utilized from the factory, they need time to adjust and settle to use. The internals of an engine, especially one making 600HP, endure a lot of stress from combustion. If a built motor is not properly broken-in it can vastly increase the potential of premature engine failure down the road.

How to break-in a built engine?

The basis of the break-in procedure is driving the vehicle for at least 500 miles and not putting excessive stress on the engine.

  1. Change gear at a low RPM
  2. Do not floor the accelerator
  3. Avoid short trips

How long does the engine break-in procedure take?

Typically it is recommended that the vehicle is to be driven in the manner specified above for about 1000 miles. After the 1000 miles period, an oil change service is performed by a certified automotive technician. The oil from the initial build and break-in process is analyzed.

The condition of the oil will dictate the overall health of the engine and if performance engine break-in procedures had been done. Once the engine is deemed ready for extra load by our certified european performance technicians you can engine your fully built engine and all of its extra horsepower

Fit And Finish Of The Build

Our service advisor Seth noted that no modifications were needed for the overall fitment of the Audi S3 big turbo kit from Pag parts. The assembly process was as easy as putting together a factory engine. The only modifications done for fitment was on the intake to make room for the APR catch can

Driving Impressions Of The Build

While the engine is still currently in the break-in process, that does not allow our team to fully test the performance capabilities of the new set up. However it does present the opportunity of driving the vehicle extensively under low load, such as you would on your normal daily commute. This goes back to creating a high horsepower audi S3 with the everyday drivability and ease of that does not yield any drawbacks. Therefore creating the perfect test for the initial challenge of the build

Up to this point the big turbo Audi S3 operates exactly as you would expect any normal S3. The only indication from the driver’s seat that the vehicle has been extensively modified is the increased exhaust note from the Milltek performance exhaust and a slight vibration under deceleration due to the upgraded Black Forest Industries engine mounts.

Big Turbo S3 Parts and Supporting Modifications

Where Can I Have Performance Modifications Installed On My Audi At A Shop Near Me?

At Eurofed Automotive we offer performance solutions for Audi’s with a variety of options from the top performance vendors in the industry from our multiple locations across the American Southeast.

Contact your local Eurofed to learn more about our industry leading performance solutions.

Making Sure Your Vehicle is Road Trip Ready!

Road Trip Essentials : Get Ready For Summer

Warm weather means pack your bags and get ready for a family road trip. Before any vacation, make sure your vehicle is capable of going the distance and up-to-date on all of its necessary services.

At any of our 13 Eurofed locations, we offer road trip preparations that includes the key services and factory maintenance needed to increase your vehicle’s reliability for any extensive drive.

Eurofed recommends services, beginning with a full multi-point inspection performed by one of our factory-certified technicians. Technicians provide a full assessment of the overall health of the vehicle and recommend the necessary factory-scheduled services to perform. 

Followed by an oil change service, utilizing the manufacturer specified type provided by Liqui Moly Oil and a tire rotation service.

Next a vehicle alignment service is performed with our state-of-the-art Hunter Engineering equipment to make sure the vehicle’s suspension is in proper working order within manufacturer’s stated specifications.

After all services have been performed on the vehicle our technician will perform a factory service light reset and set it to its next scheduled service interval. Tire pressure lights and other schedule service warnings will be addressed here.

Before you take your vehicle on its next road trip, contact your local Eurofed location and ask about our road trip services. Protect your vehicle and family for miles to come this summer!

AMS Performance Authorized Dealer

Eurofed Is Now an Authorized AMS Performance Dealer and Installer.

AMS Performance specializes in performance for turbocharged vehicles. Upgraded turbos, Intercoolers and supporting modifications or components of the highest quality are just a few products offered through the company. AMS is the industry leader for reliable engine performance and transmission upgrades.


The AMS Alpha 12 Twin Turbo Package has been outfitted on our shop 2017 Audi R8 V10 Plus build. This turbo kit includes two GTX Garrett Turbos, SSP billet clutches and basket, dual fuel pumps and a stand alone MoTec engine management system. Check out our video below for a full in depth look at our AMS Alpha 12 Audi R8.

Eurofed is proud to have one of the first Audi R8’s with this Alpha 12 AMS package installed. Horsepower output is expected to be north of 1200 horsepower. Be sure to check out our AMS Alpha 12 Audi R8 V10 Plus at upcoming events and contact your local Eurofed location to shop AMS Performance parts.

600HP+ Unitronic Audi TTRS

The performance capabilities of cars today almost seem unreal. For most performance platforms just by merely installing a set of downpipes and a tune you are able to see gains of 100HP to even 200HP over stock without the need of additional supporting mods.

Just a decade and a half ago performance gains such as that would require a full engine build with reinforced internals to handle the extra power. However even at that point the reliability of those builds wasn’t exactly guaranteed and you would surely be a glutton for punishment if you attempted to daily drive a car built to that level of performance.

But then you fast forward to today where almost every single performance engine and drivetrain is overbuilt from factory which in turns leaves a lot left on the table for the aftermarket!

Which brings us to the Mk3 Audi TTRS, the fastest and last iteration of the TT that Audi plans to sell. Being powered by a 400HP 2.5L 5-cylinder turbocharged engine, internally called the 07K EVO, and put to the ground via a dual-clutch transmission it definitely is no slouch. However that is nearly just the tip of the iceberg for this platforms potentials.

You see Audi’s original claim to fame was there 5-cylinder turbocharged monsters, The Audi sport quattro, that obliterated the rest of the competition on various rally stages during the legendary group B era of the WRC. A theme of domination that later translated to the Trans-AM Series in America as well.

So when Audi had planned to bring back their fabled 5-Cylinder engines, they made it a point to make sure that new 2.5T EVO was worthy of carrying the torch and boy did they deliver! Because the performance capabilities of this platform are simply incredible.

Not only are the internals more than strong enough to handle a 50% increase in power with no need to be beefed up, but the fuel system is the real party trick of it all. For most engines they are equipped with one fuel injector per cylinder, while that is sufficient it does create a barrier for tuners to make power because the injectors with become maxed out and the engine will run out sufficient fuel delivery.

The beauty of the 07k EVO is that they come from factory with 2 injectors per cylinder which allows for a much higher ceiling for tuners to work with that in turn means much more potent tunes!

Which leads to our buddy Josh’s stunning TTRS that we recently completed at our Atlanta Store.
Thanks to the addition of the Unitronic Stage 2 kit, a set of Vargas Catch cans and some custom titanium intercooler piping created in-house by our fabrication team, this striking Audi TTRS is putting down a reliable and consistent 550HP on 93 octane and 620HP when filled with E85 fuel 🤯⁠⁠.

What’s more insane is that Josh could drive this monster everyday just like any other standard car with no compromises! Its only when you put the foot to the floor when you realize that this little TT could embarrass almost every single vehicle within a 5 mile radius.
This is by far one of the best dollar-per-performance values we have seen in modern cars and we highly recommend having it done if you have a 2.5T #07K EVO powered Audi! ⁠⁠Audi has truly given the enthusiast an opportunity to have their cake and eat it too!

– Will Bofill,

Marketing Director at Eurofed Automotive
◼Custom Titanium Intercooler Piping ⁠⁠
Unitronic Stage 2 ECU & TCU Tune ⁠⁠
◼ Unitronic Downpipe and Mid-pipe ⁠⁠
◼ Unitronic Carbon fiber intake with high-flow turbo inlet ⁠
Unitronic MPI Kit
◼ Unitronic Intercooler
◼ Vargasturbo Engine Oil Catch Can⁠⁠
◼ Vargasturbo DSG Catch Can

Where Should You Go to Address your Audi’s Engine Misfires

Audi Engine Misfires
Audi Services and Repair

Audi’s are known as the practical alternative to luxury motoring. They embody all the elements desired from a luxury vehicle but possess innovations designed for the rigours of everyday life. Audi is the perfect choice for professionals who need functionality but still have a passion for motoring.

However, something that can really ruin the functionality and performance of your Audi is regular misres. Disruptive to your driving experience and damaging to your car, misfires should always be investigated and never ignored. With this in mind, in this article, we will take a closer look at the different types of misre, what causes them, and the best place to go to seek repairs

How Does the Combustion Cycle Work?

  1. Intake: Stroke 1 is known as the intake stroke. This is where air and fuel enter the engine through the inlet valve. This step requires the piston, cylinder, and crankshaft to work together.
  2. Compression: During stroke 2, the inlet valve closes to create a tight seal. The piston retracts back into the cylinder, increasing the pressure. This makes that air/fuel mixture in the engine highly flammable
  3. Power: Stroke 3 is where the power happens. The spark plugs create sparks within the engine, igniting the fuel. The combustion of the fuel releases a burst of hot gas, which causes the piston to drop. This allows the energy created to be released to the crankshaft, which gives your vehicle forward motion.
  4. Exhaust: Stroke four allows the outlet valve to open. This carries the exhaust gases created by the burning fuel out of the vehicle via the exhaust pipe.
  5. Repeat: The process then repeats itself, ensuring the crankshaft continues to spin.

Different Types of MIsfires

If any step in the combustion cycle is interrupted, then misre can occur. There are 3 types of misre which can occur, each for different reasons:

  • Lean Misre: This occurs when the air/fuel ratio in your engine is imbalanced and the mixture within the engine isn’t ammable enough for the spark plugs to ignite.
  • Ignition Misre: This type of misre usually occurs when there are issues with the spark plugs or the connected ignition systems. Ignition misre occurs when sparks are not created to ignite the fuel in the engine.
  • Mechanical Misre: If any of the mechanical parts of the combustion cycle fail, such as the pistons or valves, then mechanical misre occurs

What Causes Misfires to Occur?

As the engine represents a complex system of parts all working together to achieve one goal, there can be many reasons why a misre might occur. Being aware of these causes can help you to respond faster to any problems and seek remediation before damage can occur. Listed below are some of the most common causes of engine misfire issues:

  • Faulty or worn out spark plugs
  • Faulty spark plug connectors/wires
  • Failed MAF sensor
  • Faulty fuel pump
  • Clogged fuel injectors
  • Clogged fuel liter
  • Faulty intake gasket
  • Worn Piston rings
  • Faulty EGR valve
  • Head gasket leaks
  • Transmission issues
  • Clutch issues
  • Electronic failures
  • Battery issues
  • Crankshaft failure

It is important to never ignore misfires, particularly if they appear to be occurring more and more frequently. Frequent misfires put excess strain upon your engine and related systems causing a chain reaction of failures. This can cause excessive deterioration of parts, or in a worst case scenario, severe engine damage.

Audi Auto Repairs

If your Audi is having issues, bring it to any of our Locations for an inspection. To Experience the Eurofed Difference, schedule an Appointment and a service manager will respond as soon as possible.

Top 5 Audi A4 Problems

Audi A4 Problems

Top 5 Audi A4 Problems

Since the introduction of the Audi A4 in 1994, it has been a very popular compact executive luxury sedan. Overall, Audi has done an excellent job at capturing the high-end luxury market, due to its attention to design, power and handling. The A4 is considered a mid-tier Audi model starting at around $36,000 for a brand new vehicle. And even though a new car might not have any immediate issues, A4’s – like all cars – have known problems that all car buyers should be aware of when they start getting old.

Audi A4 Problems

Here are the top 5 problems with Audi A4 vehicles according to Repair Pal:

5) Decreased Power and Fuel Economy

This, unfortunately affects Audi A4 models built between 2006 and 2017 that use the 2.0FSI, 2.0TFSI and 3.2FSI engines. All these engines have been reported to be subject to carbon build up and might cause a check engine light. The only way to fix this is to have the intake manifold, parts and cylinder head professionally cleaned. It is recommended that this be done every 20,000 miles.

4) Vacuum Leaks, Oxygen Sensor, or Catalytic Converter Fault

A fault or failure in any of these would cause your Audi A4 Check Engine Light to turn on. The Oxygen Sensor is important for a vehicle to run efficiently and reducing carbon emissions. The Catalytic Converter also allows a vehicle to reduce emissions drastically and has been required by the EPA for decades.

A problem with the Oxygen Sensor or Catalytic Converter will call cause a failure of an emissions test, release a foul smell and will result in less power. Problems of this nature have not been reported in modeals built after 2012.

3) Clogged Plenum Tray Drains

There have been many reports with clogged drains causing problems with the Audi A4. Clogged drains cause water to enter the vehicle causing major damage to electrical components. Make sure to keep the drains free of debris like leaves, especially if you know a storm is coming.

This problem has not been reported by Audi models built after 2010 with an average mileage of 102,000 miles.

2) Engine Oil Leaks

Engine oil leaks in the Audi A4 are caused due to a failing or bad valve cover gasket. Leaks in the valve cover gasket cause oil to leak into the spark plug tubes, which results in an engine misfire illuminating the Check Engine Light.

This problem does not affect any models built after 2010 with an average mileage of 124,000 miles.

1) Failed Ignition Coil, Spark Plug, or Ignition Wire

This problem causes the Check Engine LIght to illuminate because of the ignition coil or spark plug misfires, which causes the engine to misfire in the Audi A4. The result is a spark plug or ignition coil replacement.

The good news is that you won’t have to worry about such problems if your Audi is a 2012 or newer model with an average of 102,000 miles.

If your Audi is have issues, bring it in for a free inspection. To experience our Industry Leading Service and Repairs, Schedule your Appointment or Contact a Location near you.