1.8T Engine Tuning Guides
Tuning Guides
Tuning-Guide for 1.8T BFB engines with 163 hp
More driving fun with your Audi A4 - up to 666 hp!
Reliable tuning for your Audi A4 with 163 hp as standard
If you’re looking for a way to tune your Audi A4 (1.8T with engine code BFB) safely and professionally, you’ve come to the right place. Our tuning guide reveals the four tuning stages needed to get from the standard 163 hp to a final horsepower of 666. It contains all the products and steps for exploiting your engine’s full potential.
Installed in:
- Audi A4
Year of manufacture:
2002 – 2008
Engine Code:
- BFB
Stage 1
increased efficiency:
+ 30 hp
+ 95 Nm
Final output:
193 hp
320 Nm
You need this extra to make it last:
You don't need any additional components here. Simply install and have fun! Do not use Longlife oil. Our fully synthetic GTX Racing oil 10W-60 is better.
BAR-TEK® TIP!
We recommend 102 octane fuel: More power for your engine because it knocks less! Your turbo should not be too old and your engine should be in good condition. The base must be right. Check the red pressure hose on the turbocharger. This often leaks due to the heat of the manifold.
To reduce coking to a minimum and keep the engine clean, we recommend installing our oil catchtank kit with TÜV.
We recommend 102 octane fuel: More power for your engine because it knocks less! Your turbo should not be too old and your engine should be in good condition. The base must be right. Check the red pressure hose on the turbocharger. This often leaks due to the heat of the manifold.
To reduce coking to a minimum and keep the engine clean, we recommend installing our oil catchtank kit with TÜV.
Stage 2
increased efficiency:
+ 77 hp
+ 115 Nm
Final output:
240 hp
340 Nm
You need this extra to make it last:
The original clutch can't transfer this extra power, so you need a sports clutch. For the conversion to K04-01 upgrade turbocharger you have to install a racing cat and our upgrade air mass meter.
BAR-TEK® TIP!
If you have already installed a sports cat, an intake hose and an upgrade charge intercooler, you can continue to use them. The sport catalytic converter is very important for the 1.8T engines in the Passat and Audi A4.
If you have already installed a sports cat, an intake hose and an upgrade charge intercooler, you can continue to use them. The sport catalytic converter is very important for the 1.8T engines in the Passat and Audi A4.
Stage 3
increased efficiency:
+ 157 hp
+ 175 Nm
Final output:
320 hp
400 Nm
You need this extra to make it last:
To drive this incredible power, you have to replace your connecting rods with H-beam connecting rods. A sports clutch kit is required to get the 320 hp on the road. For the exhaust you should use a 76 mm exhaust system.
BAR-TEK® TIP!
Good chip tuning is required for this conversion. You can send us your control unit or have your vehicle tuned directly in our workshop. Another tip from us: You should build the downpipe in 70 mm, as the Passat and Audi A4 have a very narrow body at the bottom of the axle beam. You should move the catalytic converter downwards. This will reduce the exhaust temperature and protect the turbocharger!
Good chip tuning is required for this conversion. You can send us your control unit or have your vehicle tuned directly in our workshop. Another tip from us: You should build the downpipe in 70 mm, as the Passat and Audi A4 have a very narrow body at the bottom of the axle beam. You should move the catalytic converter downwards. This will reduce the exhaust temperature and protect the turbocharger!
Stage 4
increased efficiency:
+ 503 hp
+ 583 Nm
Final output:
666 hp
808 Nm
You need this extra to make it last:
We'll tell you what you need for 666 hp here shortly.
BAR-TEK®
Engine repair guide Audi A4 (B6) 1.8T
Audi 2.5 TFSI (CEPA)
Audi 2.5 TFSI (DAZA)
Audi A4 (B6) 1.8T
Audi TT (8N) 1.8T
VW Golf 4 1.8T
VW Golf 5 TFSI
VW Golf 6 2.0 TFSI
VW Golf 7 2.0 TSI
VW Golf 8 2.0 TSI
VW Passat (3B) 1.8T
+% more
All data at a glance
One less source of error
Detailed instructions
Technical drawings
Cooling guide
increased efficiency:
Final output:
This is how you improve the cooling:
If you want to get the full performance out of your engine, you must not forget the cooling. Even a little extra power puts a lot of strain on your engine! The thermal load increases and affects all areas of your vehicle, even the transmission suffers from the new power. At best, the hard-earned power is reduced again; at worst, your engine suffers major damage. So that you can tune your engine safely and reliably, we provide you with everything you need for perfect cooling. Although it is ideal to install all parts together in a cooling bundle, you don't necessarily have to order everything at once. Each product helps you to improve cooling.
Turbo guide
increased efficiency:
Final output:
The perfect turbocharger for your tuning project
The turbocharger is one of the most important tuning measures of all, as there is huge performance potential in the compression ratio. This is why you will find all the turbos from the guides and suitable alternatives in this special turbo guide, for example if you prefer a specific manufacturer. We have also compiled a lot of information for you on the subject of turbochargers, which you should take a look at. In addition to the detailed turbo tips, there is a page on running in engines correctly, turbo lag and, of course, our 14 turbo rules.
Turbo-Total
1.8T 20V Upgrade Turbocharger K04-01 Stage 1 BAR-TEK®
Stage 1 up to 260 HP
Stage 2 up to 320 HP
Standard turbocharger
+% more
up to 260 HP
Finely balanced
Reinforced bearing
Plug & Play
From
€1,930.21
Garrett
Garrett GTX2860R Gen II Super Core 849894-5001S
+% more
up to 475 HP
Standard Rotation
Ball bearing
Compressor wheel Ø 46mm
sale
Garrett
Garrett GTX3071R Gen II Super Core 851154-5002S
+% more
up to 675 HP
Standard Rotation
Ball bearing
Compressor wheel Ø 54mm
BAR-TEK®
1.8T 20V Upgrade Turbocharger Thor 501 BAR-TEK®
+% more
New design
Integrated Manifold
Bolt-On Kit
Easy to install
sale
BAR-TEK®
1.8T Top Mount Manifold V-Band BAR-TEK®
+% more
With V-band connection
Better response
Performance increase
Increased gas flow rate
Turbo-Total
1.8T top-mount manifold with ext. wastegate connection Turbo-Total®
+% more
Precise boost pressure control
Improved exhaust gas flow
Reduced turbocharger lag
Increased durability
BAR-TEK®
1.8T Top Mount Turbo Manifold Slotted T25
+% more
Shock Charging Turbo Manifold
Better response
Performance increase
Increased gas flow rate
BAR-TEK®
1.8T Audi S3 / TT / Cupra upgrade Turbo manifold High-Flow
+% more
34.5 mm diameter
optimum exhaust gas throughput
significant performance improvement
extremely temperature resistant
Race engines
increased efficiency:
Final output:
Racing engines from BAR-TEK®
If you don't feel like tuning your engine all by yourself, you can also get a ready-tuned engine from us. Our racing engines are designed for maximum performance and maximum driving pleasure and leave nothing to be desired. The components included are perfectly matched, finely balanced and suitable for the highest speeds. Because we use components from motorsport, such as forged pistons and steel connecting rods, our racing engines are extremely stable. This means you get a completely finished engine that not only delivers full power, but is also safe and has a long service life.
BAR-TEK®
1.8T Block 2.2L over 300 PS capable
+% more
2.2 Liter
5 valves/cylinder
over 300HP stable
BAR-TEK®
1.8T RENNMOTOR 2.2L completely over 300HP capable
+% more
2.2 Liter
5 valves/cylinder
over 300HP stable
BAR-TEK®
1.8T Block 1.8L over 300 PS capable
+% more
1.8 Liter
5 valves/cylinder
over 300hp steady
BAR-TEK®
1.8T 20V racing engine 1.8L completely over 500 PS capable
+% more
over 500HP stable
1.8l Liter
5 valves/cylinder
BAR-TEK®
1.8T Block capable on 2.0L over 300 PS
+% more
2.0 Liter
5 valves/cylinder
over 300HP stable
BAR-TEK®
1.8T Race Engine 2.0L completely over 300 PS capable
+% more
2.0 Liter
5 valves/cylinder
over 300HP stable
The performances indicated here are based on our experience and can only indicate a tendency. Each engine is different and many factors play a role in the maximum power to be achieved. These include fuel, software tuning or mileage. All information is therefore without guarantee.
Off to the performance dynamometer!
With us you can put your engine to the acid test: On our 1000 PS dynamometer. If you have any further questions, simply contact us by e-mail.
His first car was a Polo Mk1 with a 40 Weber twin carburetor and 129 PS (95 kW). His second was an Audi 50. Today Bartek tunes Lamborghinis to 1000 PS (735 kW). Even as a young boy, Bartek disassembled vehicles and put everything back together better. He wrote his high school diploma with oil on his fingers. The trained automotive mechanic with a focus on engines and gearboxes was determined to go into motorsports. In his 10 years in Formal 1, he supervised 73 races, including as engine mechanic for Ralf Schumacher at Toyota. Since 2010, he has dedicated himself fully to his company BAR-TEK® and helps his customers to bring VW and Audi engines to peak performance.
Expert in
Engine
Gearbox
YOUR TUNING EXPERT
BAR-TEK®
Motorsport –
Your specialist for professional Engine tuning
We love engines, performance and speed. Here you will find everything you need to increase the performance of your engine. Especially the professional engine tuning for VW and Audi is one of our specialties. We are also happy to advise you individually and show you on our dynamometer, what you can get out of your car. In addition, we take over the tuning completely for you. Just give us a call!
Bartek
Bartek
Bartek
Bartek
Europe's No. 1 in engine tuning
Europe's largest store for Audi and VW engine tuning.
Same day shipping
Orders before 12 o'clock go out the same day.
All items are BAR-TEK proved
All items are tested and checked by us.
15 years of engine tuning experience
Of which 10 years in the top class of motorsports!
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