Fsi, Tfsi, Tsi

**t3han0maly** · 09-08-2008 03:33 PM

I'm assuming TFSI and TSI are the same thing? My engine cover says TFSI. How do I find out for sure which motor I have?

http://forums.vwvortex.com/zerothread?id=3877431

I found this so I know the differences between FSI and TSI but nothing outlines exactly how to tell what you have. Someone even said Audi/VW have been messing around with correctly badging the vehicles on the engine cover so we cant go by that alone.

**Brungold** · 09-08-2008 03:52 PM

an easy way to check is to pop open your hood.
if it looks like mine (2nd half of 2008 production) with the oil filter on the top, you've got the TSI.

**t3han0maly** · 09-08-2008 03:54 PM

looks exactly like yours.

**Brungold** · 09-08-2008 03:58 PM

Great!
bTw, APR dyno'ed our engine stock.. 212hp at the crank on 93 octane. woot!

**Brungold** · 09-08-2008 04:21 PM

it looks to have different grommet locations than the FSI cover

TSI engine cover:
top

underside

**t3han0maly** · 09-08-2008 08:25 PM

Originally Posted by Brungold

Great!
bTw, APR dyno'ed our engine stock.. 212hp at the crank on 93 octane. woot!

what is the expected powertrain loss? 20%ish?

I havent taken the engine cover off yet. Car's too new (190 miles) for me to start picking sutff appart but the engine bay is identicle to yours. I read that if it was built march 2008 its a TSI motor. I cant figure out how mine was built. The stickers and markings are all different than how the Japanese cars have them.

**LowUFO** · 09-08-2008 09:10 PM

what is the expected powertrain loss? 20%ish?

Prolly closer to 10-15% due to it being front wheel drive vs awd and the drive wheels being so close to the motor..

**T1noandAudi** · 09-09-2008 11:45 AM

Originally Posted by t3han0maly

I'm assuming TFSI and TSI are the same thing? My engine cover says TFSI. How do I find out for sure which motor I have?

http://forums.vwvortex.com/zerothread?id=3877431

I found this so I know the differences between FSI and TSI but nothing outlines exactly how to tell what you have. Someone even said Audi/VW have been messing around with correctly badging the vehicles on the engine cover so we cant go by that alone.

fsi for both
but they came up with tsi for vw
and tfsi for audi
altho they are both identical prob

**Dion@Achtuning** · 09-09-2008 04:56 PM

Chris@Revo said it best in the vortex thread with regard to the "differences"...

Originally Posted by chris@revotechnik

It is not the twincharged engine. There are engines in the VW lineup that are, however the one in your vehicle is simply just turbocharged (or single exhaust driven supercharged if you want to get techincal =) )

The biggest differences are a chain instead of timing belt.

Balance shafts in the center of the block in either side.

Fuel pump driven off a 4 lobe exhaust cam

new engine management

and a few other things.

It is is a 2L 16V direct injection engine.

VW/Audi have been mixing up the fsi, tfsi and tsi badging lately, you can't simply just go by that any longer.