1.8T Engine Tuning Guides
Tuning Guides
Tuning guide for 1.8T 20V AMU, APX, BAM engines with 225 hp
With these power levels you can reach up to 666 hp!
Up to 400 hp with your 1.8T 20V engine
With this tuning guide, you can increase the power of your 1.8T 20V engine step by step. Find out here what tuning parts you need and what’s really important for getting the max out of your engine safely and easily.
And for all those who find that not enough performance, we have put together another bundle for you. With stage 5 you get 666 hp!
Installed in:
- Audi S3
- Audi TT
Year of manufacture:
1998 – 2006
Engine Codes:
- AMU
- APX
- BAM
The values given are based on our experience with our Audi TT Ringtool project with the 1.8T APX with standard 225 hp.
Stage 1
increased efficiency:
+ 25 hp
+ 100 Nm
Final output:
250 hp
380 Nm
You need this extra to make it last:
You don't need any additional components here. Simply install and have fun! No Longlife oil. Better use our GTX Racing Oil 10W-60.
BAR-TEK® TIP!
We recommend to fill up with 102 octane fuel. This will give your engine more power because it knocks less! The turbocharger should not be too old and the engine should be in good condition. The basis must be right. Check the red pressure hose on the turbocharger; it's often leaking because it can't stand the heat from the manifold. Our Forge silicone hose can help!
We recommend to fill up with 102 octane fuel. This will give your engine more power because it knocks less! The turbocharger should not be too old and the engine should be in good condition. The basis must be right. Check the red pressure hose on the turbocharger; it's often leaking because it can't stand the heat from the manifold. Our Forge silicone hose can help!
Stage 2
increased efficiency:
+ 45 hp
+ 120 Nm
Final output:
270 hp
400 Nm
You need this extra to make it last:
For higher mileage, we recommend fitting a sports clutch so that the extra power can be put on the road.
BAR-TEK® TIP!
As with level 1, we recommend that you refuel with at least 102 octane fuel and replace the red pressure hose with the Forge silicone hose!
As with level 1, we recommend that you refuel with at least 102 octane fuel and replace the red pressure hose with the Forge silicone hose!
Stage 3
increased efficiency:
+ 85 hp
+ 140 Nm
Final output:
310 hp
420 Nm
You need this extra to keep it long:
A sports clutch kit is required so that the 310 PS can also reach the road. To keep the oil temperature in a healthy range, an oil cooler must be installed.
BAR-TEK® TIP!
As with Stage 1, we recommend to fill up with at least 102 octane fuel and replace the red pressure hose with the Forge hose!
As with Stage 1, we recommend to fill up with at least 102 octane fuel and replace the red pressure hose with the Forge hose!
Stage 4
increased efficiency:
+ 175 hp
+ 170 Nm
Final output:
400 hp
450 Nm
You need this extra to make it last:
400 PS: That's an announcement! To drive this power, you have to replace your connecting rods with I-beam connecting rods and forged pistons ➜ We offer you a complete carefree package: forged pistons and I-beam connecting rods in a set. A sports clutch kit is required for the 400 PS to reach the road. For the exhaust you should use a 76 mm exhaust system. To keep the oil temperature in a healthy range, an oil cooler kit must be installed!
BAR-TEK® TIP!
Latest at this stage we recommend to install also our 1.8T Catch can kit.
Latest at this stage we recommend to install also our 1.8T Catch can kit.
Stage 5
increased efficiency:
+ 441 hp
+ 528 Nm
Final output:
666 hp
808 Nm
You need this extra to make it last:
We'll tell you here shortly what you need for 666 hp.
BAR-TEK®
Engine repair guide Audi TT (8N) 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
Turbo-Total® KKK K04-023 RS upgrade Turbocharger to 330 HP
+% more
Up to 330HP
Wastegate up to 1.7 bar
CNC milled compressor impeller
Optimized exhaust gas wheel
BAR-TEK®
1.8T 20V Upgrade Turbocharger Thor 501 BAR-TEK®
+% more
New design
Integrated Manifold
Bolt-On Kit
Easy to install
Garrett
Garrett GT2860RS Turbocharger
+% more
up to 360 HP
Standard Rotation
Internal Wastegate
Compressor wheel Ø 47,20mm
sale
Garrett
Garrett GTX3071R Gen II Super Core 851154-5002S
+% more
up to 675 HP
Standard Rotation
Ball bearing
Compressor wheel Ø 54mm
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 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 1.8L over 300 PS capable
+% more
1.8 Liter
5 valves/cylinder
over 300hp steady
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 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
BAR-TEK®
1.8T RENNMOTOR 2.2L completely over 300HP capable
+% more
2.2 Liter
5 valves/cylinder
over 300HP stable
The performances indicated here are based on our experience and can only indicate a tendency. All data are therefore without guarantee.
Each engine is different and many factors, such as fuel used, software tuning or mileage, play an important role in the final performance. Put your engine through its paces on our 1000 PS dynamometer!
Need help with 1.8T tuning?
If you have any further questions, we are always happy to help. Contact us here.
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!
BAR-TEK up close
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