Friday, 29 November 2013

APR Stage I+ ECU update


After all preparations, that were made before, all that's left to do - is to update the engine ECU with the new program. That's was done at the local APR dealer store: PIT STOP Israel.


ECU programming in progress

After ~15min: ECU programming is done
OK. So what we have here?
ECU was updated to the new APR v3.4 program, that was released a month before.
Now, the new ECU program "understands", that we have the upgraded fuel pump and it will adjust it's parameters in order to extract more power, especially in middle-high RPM's range. Personally, I feel that there also is growth in torque in low range RPM's.
The engine now is more flexible and produce more torque, than before - thanks to VWR cold air-intake and HPFP upgrade, the upgrades that have been made earlier.

You may see the (power/torque)/RPM graph below:

APR Stage I+FP+Intake VS Stock
The bottom line:  335 HP and 450 NM of torque at the engine crank and more important thing: very smooth power delivery through the all engine RPM's range.
It's a +70 HP and +100 NM gain from the stock Cupra R/Audi S3 engine. I think, it's a great result for relatively low amount of money: less than 2500$ is spent on the tuning parts.

Now, driving a car is become a real pleasure:
The linear throttle response in low-middle RPM's ends with the burst of the power in the high RPM's range. Now, I want to drive this car all the time. :-)

More info on APR 2.0 TFSI ECU upgrade:
APR VAG 2.0T FSI 230-272HP - APR ECU Upgrade

Odometer: 19,000 km.

Thursday, 28 November 2013

HPFP upgrade

High pressure fuel pump (HPFP) is a one of a components in 2.0 TFSI engine, that strongly affects it's performance.

The 2.0 TFSI specific Hitachi fuel pump is driven by the engine camshaft, through the cam follower and produce the pressure, that enough for the stock engine power, but it not able to achieve the pressure level, that needed to bypass the 300 HP mark. Furthermore - it's max fuel pressure in the middle range RPM's is not enough to produce the amount of power and torque, that's supported by the engine in this range.

OK. That's the problem of 2.0 TFSI engine. What's is the solution?
The solution is comes in face of the Autotech HPFP upgrade kit.

Autotech High Volume Fuel Pump Upgrade Kit 2.0T FSI
The guys from Autotech say's, that: "Our HPFP Kit can achieve flow rates 50% higher than the original pump, essentially removing pump limitations from the equation, even on high-end turbo upgrades."

Also, the cam follower has been expected and found in the good condition.
2.0 TFSI cam follower
However, it has been changed to the new one. According to it's wear condition, it may reside without any problems for 30K km.
Cam follower and the camshaft in the 2.0 TFSI engines has at least two revisions. It's strongly recommended to use the latest revision of the cam follower, that made from more hardened material.
Cam follower part#:  06D 109 309 C. The previous revision was: 06D 109 309 B. Don't use it anymore. The malfunction due to wear or break of cam follower will lead to serious engine damage!
Fuel pump O-Ring also was changed to the new one. The ring part#: 06E 127 248.

Autotech provide the detailed DIY instruction about how to upgrade the fuel pump. But my suggestion is to perform installation in the authorized garage, that have the knowledge and the tools to deal with the engine components.

OK. That's it!
The HPFP fuel pressure limitation has been removed. Now, the engine ECU is ready to be upgraded with the new program, that will take this fact into account.
The result? There will be more power! Very soon.

Odometer: 18,950

Wednesday, 27 November 2013

Volkswagen Racing air-intake

The important thing for high-output turbo engine - is a proper cold air intake system.
I chose the Volkswagen Racing cold air intake (VWR) system, that (by the way) recommended by APR.

VWR intake
This system is selected not by accident. According to dyno tests, it's allow the engine to produce the maximum power and very good air-flow starting from low RPM's and this is especially important in high RPM range. It's delivers gains as much as 9% greater at peak power, than the stock air-intake. Also, it has an excellent build quality.

The system comes with certificate of authenticity with a hologram sign and serial number.
VWR Certificate of Authenticity

VWR system was mounted by TIG Motorsport Engineering
As your may see, this system has a very solid and professional build and looks great.
VWR air-intake installed
I like how it performs. Now, I'm started to hear the engine "breath" in the middle-high RPM's :-)

Odometer: 18,900 km.

Sunday, 24 November 2013

Fuel Filter change

Because I'm a second owner of this vehicle and has no idea where it was previously filled with the gas, I decided to change the fuel filter.
I always use spare parts with the same or better quality than the stock parts: it's very important if you want to enjoy your car for a long time without any problems.

MANN WK 69

The filter, that was fitted is MANN WK 69, original part #: 1K0 201 051 K.
It's fully compatible with my vehicle according to the MANN's online catalog. It is important, that it has integrated 6.6 bar pressure regulator as it should be.

Odometer: 18,800 km.