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Audi TT 1.8T
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 400 hp!
by
Bartek Bartoszewicz
Tuning Professional

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.

 

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.

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!

BAR-TEK® tips

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!

BAR-TEK® tips

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!

Product Bundle 1
Group 6
BAR-TEK® 1.8T AMU, APX & BAM Stage 1 - Bundle
Maximum performance for the small wallet
Perfect for the start
Top price-performance ratio
The engine software must also be adapted for every tuning!
Benzindruckregler einstellbar 1.8T; VR6; R32 BAR-TEK®
+
Pressure pipe
+
+
+
+
+
1.8T Turbosilikonschlauch 210/225 PS Forge FM225TH
Total
€903.04
incl. VAT

Immediately ready for shipment!

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!

Product Bundle 2
Group 6
Group 6
BAR-TEK® 1.8T AMU, APX & BAM Stage 2 - Bundle
With intercooler
Perfect ignition
Next level tuning
The engine software must also be adapted for every tuning!
Benzindruckregler einstellbar 1.8T; VR6; R32 BAR-TEK®
+
Pressure pipe
+
+
+
+
+
1.8T Turbosilikonschlauch 210/225 PS Forge FM225TH
Total
€2,829.80
incl. VAT

Immediately ready for shipment!

You need this extra to keep it long:

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!

Product Bundle 3
Group 6
Group 6
Group 6
BAR-TEK® 1.8T AMU, APX & BAM Stage 3 - Bundle
With forged pistons & con-rods
Ambitious tuning
More powerful turbo
The engine software must also be adapted for every tuning!
Benzindruckregler einstellbar 1.8T; VR6; R32 BAR-TEK®
+
Pressure pipe
+
+
+
+
+
1.8T Turbosilikonschlauch 210/225 PS Forge FM225TH
Total
€8,383.49
incl. VAT

Immediately ready for shipment!

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!

A good chip tuning is required for this conversion. You can send us your control unit or have your vehicle tuned directly on our four-wheel dyno.

A good chip tuning is required for this conversion. You can send us your control unit or have your vehicle tuned directly on our four-wheel dyno.

Product Bundle 4
Group 6
Group 6
Group 6
Group 6
BAR-TEK® 1.8T AMU, APX & BAM Stage 4 - Bundle
With upgrade manifold and RACE oil pump
Professional tuning
Maximum performance with your S3
The engine software must also be adapted for every tuning!
Benzindruckregler einstellbar 1.8T; VR6; R32 BAR-TEK®
+
Pressure pipe
+
+
+
+
+
1.8T Turbosilikonschlauch 210/225 PS Forge FM225TH
Total
€13,780.59
incl. VAT

Immediately ready for shipment!

Engine repair guide Audi TT (8N) 1.8T
Articlenumber: 2100748.10
All data at a glance
One less source of error
Detailed instructions
Technical drawings

Immediate delivery!

€37.77
Cooling bundle
Group 6
Group 6
BAR-TEK® 1.8T AMU, APX & BAM Cooling - Bundle
Optimal cooling
Maximum performance
Top value for money
The engine software must also be adapted for every tuning!
+
+
RS Thermostat und Lüfterschalter
+
Total
€579.66
incl. VAT

Immediately ready for shipment!

Originalteil
OEM
... and more!

Delivery 5 to 8 days

€672.23
... and more!

Delivery time 8 - 12 days

€1,486.52
Up to 330HP
Wastegate up to 1.7 bar
CNC milled compressor impeller
... and more!

Delivery time 60 days

€1,631.25
New Design
Integrated Manifold
Bolt-On Kit
... and more!

Immediate delivery!

€2,100.80
New design
Integrated Manifold
Bolt-On Kit
... and more!

Immediate delivery!

€2,520.97
With V-band connection
Better response
Performance increase
... and more!

Immediate delivery!

€672.24
Precise boost pressure control
Improved exhaust gas flow
Reduced turbocharger lag
... and more!

Immediate delivery!

€840.29
Shock Charging Turbo Manifold
Better response
Performance increase
... and more!

Immediate delivery!

€378.11
34.5 mm diameter
optimum exhaust gas throughput
significant performance improvement
... and more!

Immediate delivery!

€378.12
over 500HP stable
1.8l Liter
5 valves/cylinder
... and more!

Delivery 5 to 8 days

€7,941.13
1.8 Liter
5 valves/cylinder
over 300hp steady
... and more!

Delivery 5 to 8 days

€6,176.43
2.2 Liter
5 valves/cylinder
over 300HP stable
... and more!

Immediate delivery!

€5,647.02
2.0 Liter
5 valves/cylinder
over 300HP stable
... and more!

Delivery 5 to 8 days

€6,176.43
2.0 Liter
5 valves/cylinder
over 300HP stable
... and more!

Delivery 5 to 8 days

€8,403.32
2.2 Liter
5 valves/cylinder
over 300HP stable
... and more!

Delivery 5 to 8 days

€9,705.84

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.

Bartek Bartoszewicz
Tuning Professional
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
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YOUR TUNING EXPERT

BAR-TEK® Motorsport –

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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
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