Happening in a FSI engine near you...now!

[simonhill]

Did anybody manage to take a look inside an engine with more miles on the clock to see if it was better / worse that this?

[P_G]

I would have but after pricing this up it is prohibitively expensive time and cost wise given mine is my daily commuter to do this to my RS4.

Maybe once I have some disposable income (but with 2 daughters that may be another 18years! ) and a daily clunker I'll cosnider doing this.

[caldy]

Thought you may like to see a picture of the inlet vanes. These are attached to the shafts within the inlet manifold and are actuated to induce tumble to the incoming air.

http://i271.photobucket.com/albums/jj12 ... G_2203.jpg

The vanes in the head are equally as bad!

http://i271.photobucket.com/albums/jj12 ... G_2201.jpg

[chrissyr32]

Stop it pleeeeeeeassssse!!!! God this is depressing me.

[PetrolDave]

If you think the photos in this thread are bad, cast your minds back to what the inlet/head/block looked like on your Dad's/Grandad's car when they took the head off EVERY YEAR to de-coke it (I'm talking 1960's here).

Puts it all into perspective when you remember how bad they used to look ...

[BlingBling]

If you think the photos in this thread are bad, cast your minds back to what the inlet/head/block looked like on your Dad's/Grandad's car when they took the head off EVERY YEAR to de-coke it (I'm talking 1960's here).

Puts it all into perspective when you remember how bad they used to look ...

Yes it certainly does. Considering then that your Dads/Grandads car was probably 80bhp, cost a fraction of the RS4 and the fact technology has leapt forward in those 40years you are talking. It actually makes what is happening all the more worse.

[PetrolDave]

the fact technology has leapt forward in those 40years you are talking. It actually makes what is happening all the more worse.

I can't agree with you there.

Technology can only go so far, we're living in the same world governed by the same basic laws of physics as they were, and we're getting so damn close to the absolute limits of what is possible (without going into a parallel dimension) that sooner or later progress has to come to an end.

Maybe FSI/GDI is a step too far? - forced upon us by the "Greens" and our desire to get more mpg?

[BlingBling]

So in your opinion technology has not moved forward in the last 40yrs? Hmm. I cannot recollect any 4 door saloons that could rev to +8000rpm, push out +400bhp and could be used as a daily driver being produced in the 60’s. Those sort of numbers were only available in motorsport. The nearest thing thereafter were supercars and even then they were not reliable.

The laws of physics has not changed but our understanding and ability to maximise it certainly has. Hence why you and others can today drive around in mass produced +400bhp saloon cars. Technology has moved forward in the last 40yrs and I am surprised that someone who professes to be an engineer denies this fact.

As pointed out by yourself I would have expected this sort of problem in the 60's but in this day and age. Not. One of the first VAG FSI engines was used in the Audi A2 and that was nearly 10yrs ago.

[PetrolDave]

So in your opinion technology has not moved forward in the last 40yrs?

Please re-read my original post - I didn't say that at all.

I said that technology MAY be reaching it's limits now (it's certainly a damn sight closer to them), NOT that it reached them 40 years ago.

Carbon build-up has ALWAYS affected internal combustion engines and probably always will, but it appears that the progress in reducing the rate of this build-up has to some extent been reversed by FSI/GDI.

I've been seeing a lot of posts recently, here and on other Audi websites, along the lines of "this sort of failure/problem is totally unacceptable on a £50k/$80K car". Frankly, in many cases that's a silly comment because many of the problems will exist on a €1m/$1m Bugatti Veyron or even a multi-million pound/dollar/euro F1 car - because they are caused by fundamental properties of materials. Yes, we need to put pressure on manufacturers to mitigate the effects so that we can enjoy the cars that we love, but we have to remember that some things really are impossible.

And, yes I do know the engineers mantra "the impossible we do at once, but miracles take a little longer"!

[Terry1948]

cars in the 60's were rubbish!! Every weekend was spent trying to get them to run for another week and you always carried a good tool box and some spares to fix it when it broke down then there was the rust that appeared faster than you could treat it. Cars of today are fantastic and very reliable which the reason we get miffed if they will not start.

[simonhill]

The FSI isn't really the problem, they just need to direct the crankcase oil vapours somewhere else - like a decent seperator / filtration unit. A bit of a mightmare to design to last the service interval, but surely Audi can come up with something for the next generation engine?

[sonny]

The FSI isn't really the problem, they just need to direct the crankcase oil vapours somewhere else - like a decent seperator / filtration unit. A bit of a mightmare to design to last the service interval, but surely Audi can come up with something for the next generation engine?

Yes we hope so, fingers crossed, however im not holding my breath.

[SR71]

http://forums.audiworld.com/showthread.php?t=2746852

Another RS4 clobbered by the deposition issue...

[P_G]

But have you seen the crap they have to put in their cars for petrol? It is truly awful, no wonder their engines are as bad.

[Andyuk911]

But have you seen the crap they have to put in their cars for petrol? It is truly awful, no wonder their engines are as bad.

Good point, but we are talking about the 'dry' side ... whatever crap petrol they have it does not go near the intake ...