Difference Between The FSI and TSI ENGINES Explained

What’s the difference between FSI and TSI ?

There have been some questions between the differences between the VW/Audi 2.0 liter FSI and TSI engines.  I will try and highlight the differences between them to help you understand the evolution of the TSI powerplant from the TSI.  I won’t be covering every difference, but I will try to go over the most significant differences.

Before we get too far into describing the differences I would like to clarify that TSI, FSI and TFSI have been used on varying models as marketing vernacular for VW/Audi.  Just looking at the engine cover is not always a sure fire way to identify one from the other.

What does FSI and TSI stand for?

FSI is short for “fuel stratified injection” or “fuel straight injection” and TSI is short for “turbo stratified injection”.  These are types of fuel injection systems that allow engines to run lean air-to-fuel ratios (better fuel economy) by creating a fuel rich “stratified charge” near the spark plug, but the side-effect is increased NOx (nitrogen oxide).  Catalytic converters can remove the extra NOx, but the high sulfur content in U.S. fuel contaminates and destroys them.  In Europe FSI engines use the lean burn for optimized power and economy, but the U.S. version uses the same air-to-fuel ratio as port-injected engines.

So, from this description we know that we are talking about a type of injection system, not an engine block.  You will see in the modern VW/Audi lineup that TSI, FSI and TFSI are used on a range of engines such as the 3.0, 4.0, and 4.2 liter engines.  What we are really looking at then when we are talking about the 2.0TSI and 2.0FSI are the differences between the EA113 engine code normally associated as the FSI, and the EA888 engine code normally associated as the TSI.

For the remainder of this article I am still going to refer to the differences between the FSI and TSI instead of the engine codes for the simple fact that it has become common practice to use them interchangeably for the EA113 and EA888 codes.

What is the same between FSI and TSI?

• Displacement:   1984cc
• Max Power:       200hp
• Max Torque:      206 lb ft
• Valves per Cylinder:        4
• Bore:     82.5mm
• Stroke: 92.8mm
• Firing Order:       1-3-4-2

What changed from the FSI to the TSI?

• Chain timing versus belt timing in the FSI
• Compression Ratio: 9.6:1 down from 10.5:1
• Engine Management: Bosch MED 17 from Bosch MED 9
• Oxygen Sensors: Addition of one for a total of 3, from 2
• Main bearing caps are now cross bolted to the block for additional strength.
• Oil spray jets to piston undersides for improved cooling and lubrication.
• More balanced cam shafts in the center of the block
• Improved fueling system running the HPFP (high pressure fuel pump) off of a dedicated lobe on the exhaust cam.
• Improved flowing cylinder head
• Updated internals with less internal parasitic loss
• Improved PCV system

From the list you can probably see that the TSI is a definite evolution from the FSI.  There is a common misconception that the EA113 FSI is the more “tuner friendly” because VW released it in the premium Golf R.  This was really the result of production and development timelines from VW, not strength and power limitations for the EA888 TSI.  As the EA888 TSI platform progresses you will be seeing some incredible power out of the latest evolution of VW/Audi’s small displacement turbo platform.

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A List Of Most And Least Hijacked Cars In SA

Whilst you can’t (with certainty) prevent car theft, there are several steps you can take to avoid becoming a victim - one of which is choosing a low risk vehicle.

As motorists in South Africa, hijacking and car theft are unfortunately a reality which are factored into our daily lives. We’re faced with decisions like whether or not to get insurance, install a tracker or park our car on the verge at our best friend’s braai.

According to crime statistics there were, on average, 40 hijackings per day during 2016, 50% of which occurred in Gauteng.

In February (2017) Ctrack, a global supplier of vehicle tracking, insurance telematics and fleet management solutions, released a report based on its hijacking and crime statistics. The report was compiled using data and analytics from January 2016 to December 2016 and listed, in order, which vehicle makes are targeted by criminals in South Africa. Suzuki is one of the least hijacked brands in South Africa and wasn’t mentioned at all on Ctrack’s list.

The top ten most hijacked passenger vehicle brands are (in order):

1. VW
2. Toyota
3. Ford
4. Citroen
5. Kia
6. Hyundai
7. BMW
8. Audi
9. Renault
10. Chevrolet

The following charts, showing the most hijacked cars in South Africa, are based on Ctrack’s report data:

Images Source : Business Tech

The top ten most hijacked sport / utility vehicle brands are (in order):

1. Toyota
2. Land Rover
3. Nissan
4. Mahindra
5. VW
6. Jeep
7. Porsche
8. Renault
9. Ford
10. Daihatsu

Whilst you can’t (with certainty) prevent crime, there are several steps you can take to avoid becoming a victim.

Keep these things in mind to avoid becoming a hijack victim:

1. Park in a secure area, with good lighting and preferably a guard on duty.
2. Have your keys ready, but out of sight, and only unlock your car when you’re close to it. Many Suzukis come with keyless entry which saves you from scrabbling around in your handbag in the dark.
3. Keep your valuables out of sight, preferably in the boot.
4. Drive with your windows closed and doors locked.
5. Stay vigilant. Be aware of your surroundings and watch your mirrors for any suspicious vehicles or pedestrians. Avoid distractions, like checking your phone at the robot, as this leaves you vulnerable.
6. Don’t remain stationary if you don’t need to. Slow down when approaching a red robot at night, so it’s green by the time you reach the intersection.
7. Keep a safe following distance (approximately one car length) and when stopped at a robot, allow yourself space to maneuver in case you need to make a quick getaway.
8. If you feel like you’re being followed, drive straight to your nearest police station or a busy, well lit public area.
9. Change your route regularly to avoid criminals being able to identify your routine.
10. Let people know in advance what time you’ll be arriving so that someone can open and close the gate for you.
11. Keep your own driveway well lit and cut back any overgrown shrubs which could obstruct vision of your surroundings.

During an interview with Fourways Review,  Jean Berdou (Chairperson of the Douglasdale Police Forum) gave advice to motorists who find themselves in a hijack situation.

The following steps could help save your life in a hijack situation:

1. Remain calm and non-confrontational.
2. Be compliant and do as the hijackers say.
3. Hand over your car keys without hesitation.
4. Appeal to their humanity and ask them to let you go.
5. Although it’s difficult, try to absorb as much detail as possible (e.g. the age, facial features and physical build of the hijackers).
6. Get as far away from the hijackers as possible before calling for help.
7. Report the incident to your local police station and vehicle tracking company.
8. Seek trauma counselling to help you recover from the ordeal.

Purchasing a high risk vehicle can increase your chances of becoming a hijack victim. We recommend you keep the following tips in mind to help you stay safe on the road.

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