That is exactly what I was talking about -- The GTPorsche magaine has an interview with Mr. Wolfgang Dürheimer and quoted his words, the Evo Magazine stated that was a rumor and the information seemed was from that thread we all read about in the rennxxst forum.

Yet, we all choose to lean on the rumor instead of the words from Mr. Dürheimer.

And then, I can be totally wrong. There have been so many head changes in PAG lately under the VW Group, I guess we will see in a few months.

Regards,

 

Rumor or not - there will be another GT3 (LE), whether 4.0L, nobody knows. This was all but confirmed in the November 2010 PCNA Grassroots meeting (internal meeting between PCNA execs and dealer GMs). Back then, the car was simply titled GT3 (x). And the info from these meetings is straight from the source. Each model that has been announced at these meetings to my GM (GTS, Speedster, GT2 RS, etc.) has come true.

 

Evo: Talking about the GT3, what's this 4-litre GT3 RS we keep hearing about?

Wolfgang Hatz: There will be something coming out soon and it will be very special and it will be a good success. For me the GT3 is the most emotional 911 of all and this new version is even more emotional. It will be the last evolution of the current engine. [See opposite for full story*]

*This is the page posted by Chuck_H.

 

My sources are telling me that the 4.0 will be the new dfi engine not the gt1.

 

This makes more sense. Porsche nowadays are run by business people, and it just does not make too much corporate sense to investing such engineering/financial resources on making a 4.0L street version (reliability, emission, etc.) of a retired GT1 engine platform.

Instead, it makes better sense to putting all the engineering/financial resources on the next generation GT3 engine - probably based on the 9A1 platform.

Stuffing a 4.0L version 9A1 in the existing 997.2 GT3 chassis as a test mule, yet call it a special edition and sell a few hundreds of them at premium price, let these owners guines-pig it on the roads/tracks, and then perfect the engine for the next 991 GT3 in a few years. Sounds like a feasible plan for the Porsche exeuctives.

Regards,

 

I doubt it will be the 9A1 from everything that I have seen including the Evo article posted above. Bigger displacement versions of the GT1 are everywhere to include Manthey who Porsche has a good relationship with. A 4.0L GT1 from the factory is my guess.

Jason

 

gt1 motor
4.0
500 Hp

bank on it

 

i've just gone cold. i hope you're wrong.

 

we damn hope it's a gt1.
the problem is, the crankshaft in the rsr is BESPOKE. mega dollars. unless they leave it alone and use bigger bore nikasil sleeves.
if it's 9a1, it won't be as special.
a 4.0 gt1 roadcar will be ballistic in nature.
we wait, and pray. (bless andreas)

 

when will porsche officially reveal spec?
i thought cars are due in sept. so, order by june?
so we should know spec by about now no?

 

The silence from Porsche is deafening.

 

The 9A1 versions as in the new turbo is as yet untested by competition. The GT1 which we all love has been validated by running at LeMans, Nurburgring 24h, etc. It would not costs Porsche that much to homologate the 4.0L by selling this GT3 RS special edition. That's probably built into the pricing (around $200K). If you were Porsche it would make more sense to use the tried and true GT1 for a flagship GT3 model than to have egg allover your face if the 9A1 engine starts to exhibit any new issues. It's application in the new Turbo is plausible since most turbo owners probably won't track it (due to weight affecting handling). 9ff and other tuners have stretched the massive potential of the GT1 design by going to outputs of over 1000 HP so 500 HP is still under-stressed and will be reliable ou of 4 L.

 

This explanation would not fit the homologation model. The RSR's are running 4.0 liter GT1's. They can't run a 4.0 liter GT1 unless Porsche makes one for a street car. It's almost similar to what BMW did with the cheater V8's they made for the M3 to homologate for ALMS and FIA competition. Except at the time BMW had never even made a V8 for the M3. I think BMW only made 10 of them and claimed they were sold off real fast, I don't think anyone has ever heard of or seen this car, which is why the FIA raised the number of cars you had to make to homologate an engine. Porsche is releasing an actual car to market.

But make no mistake about it, this car is for homologation, nothing else. And the bean counters can clearly see all the money that racing brings Porsche, they make more money with racing/racing parts than doing anything else if I'm not mistaken. They have no other reason to release a 4.0 RS, none.