Mezger history
08-03-2023, 01:25 PM
#1
Mezger history
Anyone know where I can find differences between the mezger iterations? Mostly interested between 997.1 3.6 and .2 3.8. Is it only a displacement upgrade in that case?
08-03-2023, 01:36 PM
#2
Rennlist Member
well. the foundation of the engine and his designs go back to the first 911 engine in 1963. Every iteration from then through the 997.2 4L RS and RSR engines was an iteration of that original design, jumping to water cooled in the 996gt, but using water cooling prior to that in race cars had water cooling designs.
Anyway, the history goes way back, its intentions were always racing derived, which is why they are so stout, and so robust, if very complicated and very expensive to repair.
You can literally take parts from modern cars and use them on the old cars. They fit, sometimes directly, sometimes with minor modifications. For example, my 71 with a 1977 2.7L case, that currently has high compression 2.8L pistons and cylinders has an oil pump from a 996 turbo, intermediate shaft from a gt3, gt3 titanium rods, gt3 cup bearings, and a few other things from modern cars.
The differences (simply) between 3.6 and 3.8 is the increase in displacement and the additional of dual vario cam vs. single variocam in the 3.6, and a different plenum for the intake. This increases HP output by about 40 in the 3.8RS design. There are other changes but that is the main difference.
Anyway, the history goes way back, its intentions were always racing derived, which is why they are so stout, and so robust, if very complicated and very expensive to repair.
You can literally take parts from modern cars and use them on the old cars. They fit, sometimes directly, sometimes with minor modifications. For example, my 71 with a 1977 2.7L case, that currently has high compression 2.8L pistons and cylinders has an oil pump from a 996 turbo, intermediate shaft from a gt3, gt3 titanium rods, gt3 cup bearings, and a few other things from modern cars.
The differences (simply) between 3.6 and 3.8 is the increase in displacement and the additional of dual vario cam vs. single variocam in the 3.6, and a different plenum for the intake. This increases HP output by about 40 in the 3.8RS design. There are other changes but that is the main difference.
Last edited by Spyerx; 08-03-2023 at 01:38 PM.
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08-03-2023, 02:09 PM
#3
Rennlist Member
well. the foundation of the engine and his designs go back to the first 911 engine in 1963. Every iteration from then through the 997.2 4L RS and RSR engines was an iteration of that original design, jumping to water cooled in the 996gt, but using water cooling prior to that in race cars had water cooling designs.
Anyway, the history goes way back, its intentions were always racing derived, which is why they are so stout, and so robust, if very complicated and very expensive to repair.
You can literally take parts from modern cars and use them on the old cars. They fit, sometimes directly, sometimes with minor modifications. For example, my 71 with a 1977 2.7L case, that currently has high compression 2.8L pistons and cylinders has an oil pump from a 996 turbo, intermediate shaft from a gt3, gt3 titanium rods, gt3 cup bearings, and a few other things from modern cars.
The differences (simply) between 3.6 and 3.8 is the increase in displacement and the additional of dual vario cam vs. single variocam in the 3.6, and a different plenum for the intake. This increases HP output by about 40 in the 3.8RS design. There are other changes but that is the main difference.
Anyway, the history goes way back, its intentions were always racing derived, which is why they are so stout, and so robust, if very complicated and very expensive to repair.
You can literally take parts from modern cars and use them on the old cars. They fit, sometimes directly, sometimes with minor modifications. For example, my 71 with a 1977 2.7L case, that currently has high compression 2.8L pistons and cylinders has an oil pump from a 996 turbo, intermediate shaft from a gt3, gt3 titanium rods, gt3 cup bearings, and a few other things from modern cars.
The differences (simply) between 3.6 and 3.8 is the increase in displacement and the additional of dual vario cam vs. single variocam in the 3.6, and a different plenum for the intake. This increases HP output by about 40 in the 3.8RS design. There are other changes but that is the main difference.
That is so cool, and pretty insane if you think about it. Show me another manufacturer with an engine design so robust and efficient that its design was maintained over the course of 60 plus years such that you can literally drop MAJOR components from modern engines into an engine from the 1960's!
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08-03-2023, 02:42 PM
#4
Burning Brakes
Love the Mezger engine and the fact its not a cookie cutter engine. Also love the racing lineage of this motor. My car is a 997.1 Turbo and I absolutely love it
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08-03-2023, 02:43 PM
#5
That is so cool, and pretty insane if you think about it. Show me another manufacturer with an engine design so robust and efficient that its design was maintained over the course of 60 plus years such that you can literally drop MAJOR components from modern engines into an engine from the 1960's!
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moeck (08-04-2023)
08-03-2023, 03:11 PM
#6
Rennlist Member
08-03-2023, 06:33 PM
#7
I love our engines. I also love that GM figured out how to make >600hp/600lb-ft from a pushrod SBC back in the C6 era. I also love the ~450hp stock engine/turbo 4G63 in my Evo, etc. etc.
All different flavours of joy and all technical marvels that in various ways have stood the test of time.
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08-04-2023, 06:19 PM
#8
Rennlist Member
08-04-2023, 06:30 PM
#9
Rennlist Member
That is so cool, and pretty insane if you think about it. Show me another manufacturer with an engine design so robust and efficient that its design was maintained over the course of 60 plus years such that you can literally drop MAJOR components from modern engines into an engine from the 1960's!
08-04-2023, 06:30 PM
#10
Rennlist Member
The mag cases are fine, it was the emissions controls around them that were a disaster that created heat issues.
