munched engine...ouch! not for the faint of heart

[ArthurPE]

You claim "not according to Audi" but yet again don't really know do you. Audi does not need you to defend them, in fact you are harming them - they will step up to the plate when they have to as they have done before.

that was several months ago, I had just heard the rumor, in fact via you, iirc
or that other stuff you posted you said was from Audi re: deposits, that wasn't...and the production changes to the RS4 engine

I sent it to them...I told you I was going to...
they said it was all not true, including the oil temp variation and the purported RS4 changes during it's production run...

remember the post?
stating the RS5 engine was different internally? and had 'fixed' the deposit issue?
from someone you said represents Audi
they beg to differ

[Sims]

I have more faith in Audi's answers anyways, thanks

Where are Audi's answers?

I suggest you ask them
you wouldn't believe me anyways, so go to the 'well'

I don't need to, but challenge your another one of baseless assertions.

the coking is a consequence of the scoring, not vice versa...
many borescopes have been performed by Audi on RS4's (at least in the US) and coking is not an issue..

[Sims]

You claim "not according to Audi" but yet again don't really know do you. Audi does not need you to defend them, in fact you are harming them - they will step up to the plate when they have to as they have done before.

that was several months ago, I had just heard the rumor, in fact via you, iirc
or that other stuff you posted you said was from Audi re: deposits, that wasn't...and the production changes to the RS4 engine

I sent it to them...I told you I was going to...
they said it was all not true, including the oil temp variation and the purported RS4 changes during it's production run...

remember the post?
stating the RS5 engine was different internally? and had 'fixed' the deposit issue?
from someone you said represents Audi
they beg to differ

OK, so how do they differ?

[ArthurPE]

I don't need to, but challenge your another one of baseless assertions.

the coking is a consequence of the scoring, not vice versa...
many borescopes have been performed by Audi on RS4's (at least in the US) and coking is not an issue..

it's true
many engines (RS4) HAVE been borescoped, in the US
and piston crown cokin is not an issue (any more than any other car)
I've talked to people who had it done
I've talked to a tech who DID it...
and confirmed by other sources

[ArthurPE]

OK, so how do they differ?

they don't internally...

[ArthurPE]

dinner time
some jazz, maybe Art Farmer
and read about my next car
R8 or RS5

[ArthurPE]

I see one possible change internally for the RS5
(might be a typo)
but if not, I think I know why they did it...
displacement is identical
bore & stroke identical
V angle identical
cylinder spacing and centerline identical

[S2tuner]

I think instead of posting as many swear words you should have spent a bit longer to check your sources and double check the fact that Porsche do NOT use DI on any GT engine, be it GT2, GT3, GT3RS, or GT2RS. Only the 997TT and the Carreras get it, as well as the Caymans/Boxsters and Cayennes, but NO GT2/3 engine has DI as of yet.

really?

2008
http://www.autoblog.com/2008/07/30/no-s ... ect-injec/

now
check out their wesite

Since when has a 2008 article on Autoblog been a reliable source of information? Check out www.6speedonline.com where people have already taken brand new 3.8l GT3s and 997 GT2s apart, they both use the legendary GT1 engine still, not the japanese 9A1 DFI engine. The turbo and turbo S however do use DFI indeed. You can go on and call me a fool, but check your information more accurately, heck, you don't have any friends at Porsche NA?

[Sims]

I see one possible change internally for the RS5
(might be a typo)
but if not, I think I know why they did it...
displacement is identical
bore & stroke identical
V angle identical
cylinder spacing and centerline identical

So your final answer is that it is the exact same engine?

[Sims]

it's true
many engines (RS4) HAVE been borescoped, in the US
and piston crown cokin is not an issue (any more than any other car)
I've talked to people who had it done
I've talked to a tech who DID it...
and confirmed by other sources

At the outset you said you wanted to keep this thread "technical". How do all the above statements fit into that? Serious question. Let's have more information please.

[Sims]

I think instead of posting as many swear words you should have spent a bit longer to check your sources and double check the fact that Porsche do NOT use DI on any GT engine, be it GT2, GT3, GT3RS, or GT2RS. Only the 997TT and the Carreras get it, as well as the Caymans/Boxsters and Cayennes, but NO GT2/3 engine has DI as of yet.

really?

2008
http://www.autoblog.com/2008/07/30/no-s ... ect-injec/

now
check out their wesite

Since when has a 2008 article on Autoblog been a reliable source of information? Check out www.6speedonline.com where people have already taken brand new 3.8l GT3s and 997 GT2s apart, they both use the legendary GT1 engine still, not the japanese 9A1 DFI engine. The turbo and turbo S however do use DFI indeed. You can go on and call me a fool, but check your information more accurately, heck, you don't have any friends at Porsche NA?

AFAIK the Gen 2 997 GT3's have DFI, and most likely the 997 GT2 RS will also have it for that's the way it's going..

All prior GT2/GT3's did not.

[S2tuner]

really?

2008
http://www.autoblog.com/2008/07/30/no-s ... ect-injec/

now
check out their wesite

Since when has a 2008 article on Autoblog been a reliable source of information? Check out www.6speedonline.com where people have already taken brand new 3.8l GT3s and 997 GT2s apart, they both use the legendary GT1 engine still, not the japanese 9A1 DFI engine. The turbo and turbo S however do use DFI indeed. You can go on and call me a fool, but check your information more accurately, heck, you don't have any friends at Porsche NA?

AFAIK the Gen 2 997 GT3's have DFI, and most likely the 997 GT2 RS will also have it for that's the way it's going..

All prior GT2/GT3's did not.

It's not because gen2 997 GT3s are 3.8 that they also have DFI. Their engine management system is still a Bosch Motronic ME7.8.x, same as the GT2 and GT2RS, whereas all DFI cars run Siemens SDI3/4.x systems for Porsches Hence my saying that no GT has DFI yet. Furthermore, the GT2RS has a 3.6 liter engine, whereas the gen2 997TT has the 3.8l 9A1 engine, which only confirms that the GT2RS's engine can only be the GT1 based "metzger" engine with no DFI.

[Sims]

It's not because gen2 997 GT3s are 3.8 that they also have DFI. Their engine management system is still a Bosch Motronic ME7.8.x, same as the GT2 and GT2RS, whereas all DFI cars run Siemens SDI3/4.x systems for Porsches Hence my saying that no GT has DFI yet. Furthermore, the GT2RS has a 3.6 liter engine, whereas the gen2 997TT has the 3.8l 9A1 engine, which only confirms that the GT2RS's engine can only be the GT1 based "metzger" engine with no DFI.

Fair enough. Your comments about the 3.6 & Bosch noted .
http://www.ultimatecarpage.com/car/4512 ... T2-RS.html

As I mentioned, I was not sure about the 997 GT2RS, but I am surprised the 7GT3 Gen 2 are not DFI - I thought they were.

[S2tuner]

It's not because gen2 997 GT3s are 3.8 that they also have DFI. Their engine management system is still a Bosch Motronic ME7.8.x, same as the GT2 and GT2RS, whereas all DFI cars run Siemens SDI3/4.x systems for Porsches Hence my saying that no GT has DFI yet. Furthermore, the GT2RS has a 3.6 liter engine, whereas the gen2 997TT has the 3.8l 9A1 engine, which only confirms that the GT2RS's engine can only be the GT1 based "metzger" engine with no DFI.

Fair enough. Your comments about the 3.6 & Bosch noted .
http://www.ultimatecarpage.com/car/4512 ... T2-RS.html

As I mentioned, I was not sure about the 997 GT2RS, but I am surprised the 7GT3 Gen 2 are not DFI - I thought they were.

The DFI engines haven't been regarded as "bulletproof" by Porsche yet for their GT cars, which keep their warranty even if something wrong was to happen on track...that tells a lot about the good ole Metzger GT1 engine

[Sims]

It's not because gen2 997 GT3s are 3.8 that they also have DFI. Their engine management system is still a Bosch Motronic ME7.8.x, same as the GT2 and GT2RS, whereas all DFI cars run Siemens SDI3/4.x systems for Porsches Hence my saying that no GT has DFI yet. Furthermore, the GT2RS has a 3.6 liter engine, whereas the gen2 997TT has the 3.8l 9A1 engine, which only confirms that the GT2RS's engine can only be the GT1 based "metzger" engine with no DFI.

Fair enough. Your comments about the 3.6 & Bosch noted .
http://www.ultimatecarpage.com/car/4512 ... T2-RS.html

As I mentioned, I was not sure about the 997 GT2RS, but I am surprised the 7GT3 Gen 2 are not DFI - I thought they were.

The DFI engines haven't been regarded as "bulletproof" by Porsche yet for their GT cars, which keep their warranty even if something wrong was to happen on track...that tells a lot about the good ole Metzger GT1 engine

Thanks for that.

So it is safe to buy a 997GT3 Gen 2