Tuning guide for 1.8T 20V AMU, APX, BAM engines with 225 hp
Up to 666 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.
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.
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 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 silicone hose can help!
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.
As with level 1, we recommend that you refuel with at least 102 octane fuel and replace the red pressure hose with the 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 silicone hose!
You need this extra to keep it long:
A sports clutch kit is required so that the 310 hp can also reach the road. To keep the oil temperature in a healthy range, an oil cooler must be installed.
As with Stage 1, we recommend to fill up with at least 102 octane fuel and replace the red pressure hose with the silicone hose!
As with Stage 1, we recommend to fill up with at least 102 octane fuel and replace the red pressure hose with the silicone hose!
You need this extra to make it last:
400 hp: 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 X-beam connecting rods in a set. A sports clutch kit is required for the 400 hp 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!
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.
You need this extra to make it last:
We'll tell you here shortly what you need for 666 hp.
For the workshop
Useful items for your workshop
For perfect tuning, you need the right expertise and tools. At BAR-TEK®, you’ll find everything you need to tune your engine. Here you’ll find a detailed repair guide, some of which include illustrations (where available for your engine), as well as the most important tools from our shop:
Cooling Guide
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
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.
Ready-to-Race Engines
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.
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 hp dynamometer!
Need help with 1.8T tuning?
If you have any further questions, we are always happy to help. Please feel free to contact us via our contact form.
YOUR TUNING EXPERT
BAR-TEK® – Your specialist for professional engine tuning
Bartek
Yours, Bartek
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General Engine Informations
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All 1.8T codes - installed transversely and longitudinally
