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the 3.6 of the turbo is much different of the P-Carrera? better? the 3.8 is awesome! 
Re: MOTOR
They are totally different engines. The current engine generation in the Carrera and Carrera S dates back to the 996.
The GT3 and Turbo engines are much older, I think they were first used in the 964. They can also handle much more power and have a dry sump, which is necessary for racing. Unfortunately, they are also much more expensive to build, which is why Porsche is not fitting them in the more pedestrian 911 any more.
This is not the first time the Turbo engine has had less displacement than the Carrera engine. The 964 for instance was a 3.6L, whereas the first 964 Turbos were still using the 3.3 block from the 930.
The GT3 and Turbo engines are much older, I think they were first used in the 964. They can also handle much more power and have a dry sump, which is necessary for racing. Unfortunately, they are also much more expensive to build, which is why Porsche is not fitting them in the more pedestrian 911 any more.
This is not the first time the Turbo engine has had less displacement than the Carrera engine. The 964 for instance was a 3.6L, whereas the first 964 Turbos were still using the 3.3 block from the 930.
Re: MOTOR
You're welcome. This is what I love about this board. There is always something new to learn from a fellow enthusiast, and I'm more than happy to do my share when I can. 
The 3.6L dry sump engine also has the huge advantage of not suffering from the infamous rear main seal (a.k.a. RMS) problem that plagued the 986, 996 and some early 997. It's apparently been fixed at last, but it took 7 years!
The 3.6L dry sump engine also has the huge advantage of not suffering from the infamous rear main seal (a.k.a. RMS) problem that plagued the 986, 996 and some early 997. It's apparently been fixed at last, but it took 7 years!
Re: MOTOR
I would even call the "old" engine design bulletproof, I know so many 996 Turbo owners who are driving around with at least 100-150 HP more than stock and they never had serious engine problems, if any at all.
I just wonder how the new VTG technology adds to this good reputation.
BTW: practically all 911 race cars which are involved in serious racing (Cup, Supercup, 24 hours of..., etc.) have actually the "old" engines, of course modded for racing.
None of them is based on the old M96 design or even the new M97 design (which is actually a highly improved M96). It has to do with the fact that this engine design is well known among engine mechanics/race mechanics, it proved to be very tough regarding mods and racing teams worldwide, incl. tuners have a lot of experience with this engine design. This may be one reason why Porsche still didn't change completely to the new M97 engine which isn't bad at all. But since the "old" engine design seems to be pretty expensive to produce, there may be two possibilities in the future: introducing this engine to the whole 911 model line (very unlikely) or getting rid of it (which would be sad) and adapting the M97/M98 to future demands regarding power and emissions. This may be the last time we see this old "friend" in a 911, who knows?! 
I just wonder how the new VTG technology adds to this good reputation.
BTW: practically all 911 race cars which are involved in serious racing (Cup, Supercup, 24 hours of..., etc.) have actually the "old" engines, of course modded for racing.
None of them is based on the old M96 design or even the new M97 design (which is actually a highly improved M96). It has to do with the fact that this engine design is well known among engine mechanics/race mechanics, it proved to be very tough regarding mods and racing teams worldwide, incl. tuners have a lot of experience with this engine design. This may be one reason why Porsche still didn't change completely to the new M97 engine which isn't bad at all. But since the "old" engine design seems to be pretty expensive to produce, there may be two possibilities in the future: introducing this engine to the whole 911 model line (very unlikely) or getting rid of it (which would be sad) and adapting the M97/M98 to future demands regarding power and emissions. This may be the last time we see this old "friend" in a 911, who knows?!
Apr 20, 2006 5:09:58 PM
- bostonmini
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- Reply to: The Groom
Re: MOTOR
Quote:
The Groom said:
You're right, I had completely overlooked the fact that the Boxster came out a year earlier than the 996. Must have been that M96 name that messed with my mind...
No problem
- actually, here in the US, the Boxster came out 2 years before the 996 (97 vs. 99)
In fact, in 1996 in the US (the year of my 993), I believe that the 993 was the only Porsche for sale, afaik (before the Boxster and after the 928GTS and 968). Funny how things have changed in 10 years...
Now we have 997, 987, Cayman, Cayenne, and CGT in the same year with 4-door sedan on the way...
Re: MOTOR
Quote:
Grant said:Quote:
The Groom said:
You're right, I had completely overlooked the fact that the Boxster came out a year earlier than the 996. Must have been that M96 name that messed with my mind...
No problem
In fact, in 1996 in the US (the year of my 993), I believe that the 993 was the only Porsche for sale, afaik (before the Boxster and after the 928GTS and 968). Funny how things have changed in 10 years...
Now we have 997, 987, Cayman, Cayenne, and CGT in the same year with 4-door sedan on the way...
Lets hope they keep those R&D $'s flowing. Imagine a 2007 tt...whatmore could one ask for...unless of course it had an X50 package..
Apr 21, 2006 12:02:30 AM
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Turbo Al
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- Reply to: bostonmini
Re: MOTOR
Quote:
bostonmini said:
I just hope that with the super strong 997 turbo block, the VTG turbos prove reliable, heat will kill any engine and since they dont need to prove this technology for racing....Im a bit nervous!
This is obviously PURE speculation, but I am betting the VTG setup won't be as hyperthermic as feared. Perhaps special headers, hoses capable of handling the extra gas pressures, ensuring the diverter valves are efficient and able to open and close properly, and some extra attention to the exhaust systems. Just give them time-and a little $$$....
Apr 21, 2006 11:10:44 AM
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RC
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- Reply to: bostonmini
Re: MOTOR
Quote:
bostonmini said:
I just hope that with the super strong 997 turbo block, the VTG turbos prove reliable, heat will kill any engine and since they dont need to prove this technology for racing....Im a bit nervous!
I'm not nervous since I know how "anal" Porsche engineers are regarding new technologies and their reliability but I'm going to be very cautious with putting more stress to the engine (tuning for example) in the beginning. This is why we recommended in another thread to WAIT with all kind of engine mods until we learn how reliable the new technology is and how to "do it right".
Apr 21, 2006 12:19:27 PM
- bostonmini
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Reply to:
RC
Re: MOTOR
Quote:
RC said:Quote:
bostonmini said:
I just hope that with the super strong 997 turbo block, the VTG turbos prove reliable, heat will kill any engine and since they dont need to prove this technology for racing....Im a bit nervous!
I'm not nervous since I know how "anal" Porsche engineers are regarding new technologies and their reliability but I'm going to be very cautious with putting more stress to the engine (tuning for example) in the beginning. This is why we recommended in another thread to WAIT with all kind of engine mods until we learn how reliable the new technology is and how to "do it right".
I know they used to be, and deep down I still think they wouldnt release anything less than perfect to the public, but the RMS thing was what i was thinking of on the other engine!
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