difference between Turbo FSI & TSI engine

[wps]

Wat is the difference between the current 2.0T FSI engine on the golf MKV and the 2.0 TSI engine in the scirocco. thanks

[RedRobin]

....

For a start, the air intake is different. I expect T_T might be along soon to elaborate further.

This is the current first engine in the Scirocco : -

[Teutonic_Tamer]

The new "Mk6" engine is a completely different unit, and shares no components with the current Mk5 GTI lump.  It has a completely different block/crankcase, with different cylinder spacing, for more reliable and consistent cooling, and therefore improved emissions.

However, the fundamental difference between the Mk5 and Mk6 engines are the arrangement of drive for the camshafts.  On the current Mk5 GTI, it has a belt driven exhaust camshaft, and these cam-belts are a real bast@rd to change.

This newest Mk6 GTI engine, which is now available in the new Rocco as RR indicated, is basically the Audi developed unit.  It has chain-only driven camshafts (fully maintenance free), along with variable valve timing for both intake and exhaust (the Mk5 only has VVT for the intake).  Furthermore, it also has selective "valve-lift", which is a little similar to Hondas V-tec system, but considerably more refined.  The turbo has also been repositioned for easier access too.

Regarding the actual naming of the engine, because all VW / Audi high performance petrol engines are now made (or will be!) with cylinder direct fuel injection, the FSI acronym is now superflous.  Therefore, the TSI acronym will now be used.

[ukdub]

Also the high pressure fuel pump is now driven off the exhaust cam and not the inlet cam, with 4 lobes not 3

[RedRobin]

Also the high pressure fuel pump is now driven off the exhaust cam and not the inlet cam, with 4 lobes not 3

....The trouble with information like that is that if you have the previous version engine, you feel that there was something wrong with it!

[ukdub]

Also the high pressure fuel pump is now driven off the exhaust cam and not the inlet cam, with 4 lobes not 3

....The trouble with information like that is that if you have the previous version engine, you feel that there was something wrong with it!

VAG have changed the design for a reason.  I have the AXX engine (65k)  and I took off the HPFP I few weekends ago.  Pleased to report there is no sign of wear on the cam lobe or follower.  I should add that the engine is fitted with the 2 piece cam.

[Peskarik]

The new "Mk6" engine is a completely different unit, and shares no components with the current Mk5 GTI lump.  It has a completely different block/crankcase, with different cylinder spacing, for more reliable and consistent cooling, and therefore improved emissions.

However, the fundamental difference between the Mk5 and Mk6 engines are the arrangement of drive for the camshafts.  On the current Mk5 GTI, it has a belt driven exhaust camshaft, and these are a real bast@rd to change.

This newest Mk6 GTI engine, which is now available in the new Rocco as RR indicated, is basically the Audi developed unit.  It has chain-only driven camshafts (fully maintenance free), along with variable valve timing for both intake and exhaust (the Mk5 only has VVT for the intake).  Furthermore, it also has selective "valve-lift", which is a little similar to Hondas V-tec system, but considerably more refined.  The turbo has also been repositioned for easier access too.

Regarding the actual naming of the engine, because all VW / Audi high performance petrol engines are now made (or will be!) with cylinder direct fuel injection, the FSI acronym is now superflous.  Therefore, the TSI acronym will now be used.

TT, how do you know all this? Do you work for VW?
To know this one has to be inside.

[Peskarik]

TT, so is Mk6 engine a significant improvement over E30 engine?

[E30M3]

TT, so is Mk6 engine a significant improvement over E30 engine?

i'm intrested aswell, also Teutoni_T is a better engine for tuning ? ?

[RedRobin]

TT, how do you know all this? Do you work for VW?
To know this one has to be inside.

....The clue is in T_T's signature










[A great big spliff!]