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FSI


Henry52
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There are a number of reasons I ask, FSI was/is supposed to be good for economy and emissions, power and torque, you could hardly accuse the R32 of shining in any of these areas. Don't get me wrong I like my R and have no regrets buying it however my missus uses it 90% of the time so I have been thinking about LPG but if it's FSI (which I understand to be direct injection into combustion chamber) then it's a lot more expensive to convert. Hence asking the question

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FSI® direct injection technology increases the torque and power of spark-ignition engines, makes them as much as 15 percent more economical and reduces exhaust emissions. In contrast to conventional intake manifold injection on conventional spark-ignition engines, FSI® engines inject fuel directly into the combustion chambers. This technology dispenses with the throttle plate. That ‘unthrottles’ the engine, reduces heat loss and thus increases output while reducing fuel consumption.

The system uses two charge-air supply modes: stratified charge at partial load and homogeneous operation at full load. In the stratified charge mode, an combustible fuel-air mixture is only produced in a defined zone around the spark plug. The engine management electronics monitor engine load and adjust injection timing, pressure, quantity parameters as well as the air flow inside the cylinder via the air intake channel. At full load, FSI® increases compression as well as engine efficiency and performance.

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Does this FSI business have something to do with the rattle sound at tickover? Or do I have an engine which is about to give up....?

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Have the rattle checked if it is easily replicated at the dealership. There was oil leaking all over the DSG gearbox and the front diff in my car and a faint rattling noise at idle that could be heard coming from the front of the transmission tunnel which happened 2 days after the oil leak. My car is having the entire transmission changed due to a fault that my dealer refuses to disclose due to VW "confidentiality" reasons. confused.gif

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Neither the Mk4 nor the Mk5 R32s are FSI 169144-ok.gif

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I may be wrong but according to a self study programme from VW, both the 3.2 and 3.6 are FSI engines.

1278813-VR6.jpg

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The R32 is definately not FSI. The only VAG 3.2 FSI I know of sits in the Longitudinal line-up of the Audi range. Perhaps this new 3.2FSi will power the MK5 Golf R32?

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The Mk5 R32 doesn't have an FSI engine and there are no plans to use it in the Mk5. Can't speak for the Mk6, whenever that's going to appear.

Medway, FSI is just a VW Group way of describing how fuel gets injected into the engine (they developed a more efficient way of doing it and used it in the winning petrol Le Mans Audi from a few years ago) - nothing to do with rattles on startup 169144-ok.gif

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[ QUOTE ]

[ QUOTE ]

[ QUOTE ]

Neither the Mk4 nor the Mk5 R32s are FSI 169144-ok.gif

[/ QUOTE ]

I may be wrong but according to a self study programme from VW, both the 3.2 and 3.6 are FSI engines.

1278813-VR6.jpg

[/ QUOTE ]

The R32 is definately not FSI. The only VAG 3.2 FSI I know of sits in the Longitudinal line-up of the Audi range. Perhaps this new 3.2FSi will power the MK5 Golf R32?

[/ QUOTE ]

Oops, was meant to say MK6 R32. The 3.2FSi has 265bhp

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[ QUOTE ]

Medway, FSI is just a VW Group way of describing how fuel gets injected into the engine (they developed a more efficient way of doing it and used it in the winning petrol Le Mans Audi from a few years ago) - nothing to do with rattles on startup 169144-ok.gif

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Hi Mook, my rattle sound is at tickover and has been there since new. When raise the revs the noise goes, which is why I've been wondering if it is a characteristic of the engine. A friend of mine has a MK5 GTI and his engine is also rattly/noisy, but not quite to the extent of the R. I've taken it to VW but they said that it was normal but I'm not entirely sure he was any more clued up than I am. R32's are pretty rare in Doha meaning that I don't have access to another one to compare mine to so it looks like I've got to live with the noise - or maybe I'll just get shot just in case....

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[ QUOTE ]

The Mk5 R32 doesn't have an FSI engine and there are no plans to use it in the Mk5. Can't speak for the Mk6, whenever that's going to appear.

Medway, FSI is just a VW Group way of describing how fuel gets injected into the engine (they developed a more efficient way of doing it and used it in the winning petrol Le Mans Audi from a few years ago) - nothing to do with rattles on startup 169144-ok.gif

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Why is it that the VW self study programme states FSI for the 3.2 VR6? It was published in 2006. Perhaps, the 3.2 VR6 is a FSI capable engine, but FSI was removed for the R32, A3 3.2 etc.

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