1.8T Engine Tuning Guides
Tuning Guides
Tuning guide for 1.8T AGU engines with 150 PS
Maximum power for Golf 4 and A3 with engine code AGU
Ultimate power for AGU engines with 150 hp
We help with your tuning project – In this tuning guide you’ll find the four tuning stages that will get your AGU engine up to as much as 320 hp. The guide doesn’t just tell you all the parts you need – it provides important tips as well. This is the safe and sure-fire way to maximum power!
And for all those who find that not enough performance, we have put together another bundle for you. With level 5 you get 666 hp!
Installed in:
- VW Golf 4 (Type 1J)
- Audi A3 (Type 8L)
Year of construction:
1998 – 2002
Engine code:
- AGU
The parts listed below should also fit in the largely identical engines AGN, AQA, ARZ, AUM and AUQ with an output between 125 and 180 hp.
The values given are based on our experience with our Golf 4 GTI project.
Stage 1
increased efficiency:
+ 40 hp
+ 100 Nm
Final output:
190 hp
310 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 GTX Racing Oil 10W-60 oil is better.
BAR-TEK® TIP!
We recommend filling up with 102 octane fuel. This will give your engine more power because it knocks less! The turbocharger should not be too old. Engine in good condition. The basis must be right.
We recommend filling up with 102 octane fuel. This will give your engine more power because it knocks less! The turbocharger should not be too old. Engine in good condition. The basis must be right.
Stage 2
increased efficiency:
+ 55 hp
+ 110 Nm
Final output:
205 hp
320 Nm
You need this extra to make it last:
To bring the extra power to the road, you need a sports clutch, because the original clutch cannot transfer the power. For the conversion to K04-01 upgrade turbocharger you have to install a racing cat and our upgrade air mass meter. A downpipe is a must.
BAR-TEK® TIP!
If you have already installed a sports cat, an intake hose and an upgrade intercooler, you can continue to use them. With an upgrade intercooler you also have the complete performance available in summer! If you want to get 220 hp right away, order the tuning kit level 3 directly! That saves money.
If you have already installed a sports cat, an intake hose and an upgrade intercooler, you can continue to use them. With an upgrade intercooler you also have the complete performance available in summer! If you want to get 220 hp right away, order the tuning kit level 3 directly! That saves money.
Stage 3
increased efficiency:
+ 110 hp
+ 150 Nm
Final output:
260 hp
360 Nm
You need this extra to make it last:
You also need a sports clutch here. For the conversion to K04-01 upgrade turbocharger you have to install a racing cat and our upgrade air mass meter. A downpipe is a must. Our 1.8T oil cooler ensures optimum operating temperatures.
BAR-TEK® TIP!
With the tuning kit stage 3 you have the extended extension stage of the kit stage 2. Here you have 380 ccm injectors and an upgrade manifold as well as an optimized software! If you have already installed a downpipe, an intake hose and an upgrade intercooler, you can continue to use them. With a large upgrade intercooler you also have the complete performance available in summer!
With the tuning kit stage 3 you have the extended extension stage of the kit stage 2. Here you have 380 ccm injectors and an upgrade manifold as well as an optimized software! If you have already installed a downpipe, an intake hose and an upgrade intercooler, you can continue to use them. With a large upgrade intercooler you also have the complete performance available in summer!
Stage 4
increased efficiency:
+ 170 hp
+ 190 Nm
Final output:
320 hp
400 Nm
You need this extra to make it last:
To drive the full 320 hp power, you have to replace your connecting rods with X-beam connecting rods. A sports clutch kit is required to get the horsepower on the road. For the exhaust you should use a 76 mm exhaust system. The pump must be an upgrade, otherwise there is a risk of engine damage due to slimming.
BAR-TEK® TIP!
A proper 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: Your brake system is no longer up to the high performance. You can convert it to a Brembo 4-piston brake or to the Audi S3 8L.
A proper 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: Your brake system is no longer up to the high performance. You can convert it to a Brembo 4-piston brake or to the Audi S3 8L.
Stage 5
increased efficiency:
+ 516 hp
+ 598 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.
