928 with Cayenne engine??
01-19-2011, 09:02 PM
#91
The Cayenne engines intake is near flush with the valve covers. The 928 intake is tall. If you notice the oil pan on the engine for my Alien is modified. So, I'm not saying it's a bolt in. I'm just saying with a little nip here and a small tuck there it can be installed.
01-19-2011, 10:13 PM
#92
Rennlist Member
I dont think the Nicasil block on the BMW had plating problems, but something else related to the block.
Nicasil is extremely hard and very different than Alusil. Alusil is a process of stripping off the aluminum on the cylinderwalls to leave a thin surface of silicon.
Nicasil is a plating process. with a alusil block, its easy to prep for production . the nicasil requires a plating process which is much more difficult to make, but very hard and requires different ring materials and qualities.
Nicasil is extremely hard and very different than Alusil. Alusil is a process of stripping off the aluminum on the cylinderwalls to leave a thin surface of silicon.
Nicasil is a plating process. with a alusil block, its easy to prep for production . the nicasil requires a plating process which is much more difficult to make, but very hard and requires different ring materials and qualities.
I must admit I haven't heard of any problems with the Cayenne, I was told by a factory engineer that the Cayenne engine is made from Alusil not Nicasil and he said that it is a slightly different element makeup, I think he mentioned copper either more or less, he did say that they tried to reduce friction in the block by changing the composition.
It is the Boxter and 996 engines that I have heard have trouble, they have trouble for a few reasons, they don't use Alusil but Lokasil, which is a cheap version of Alusil. Rememeber no money was spared when they built the 928, well maybe they should have spent money on a dry sump design.
Greg
It is the Boxter and 996 engines that I have heard have trouble, they have trouble for a few reasons, they don't use Alusil but Lokasil, which is a cheap version of Alusil. Rememeber no money was spared when they built the 928, well maybe they should have spent money on a dry sump design.
Greg
01-19-2011, 10:18 PM
#93
Nordschleife Master
MK,
the BMW had a nicasil problem, it only happened with bad gas, but once you had a little it would end up destroying the block. Leaving bad compression, high oil consumption, and rough idle.
the BMW had a nicasil problem, it only happened with bad gas, but once you had a little it would end up destroying the block. Leaving bad compression, high oil consumption, and rough idle.
01-20-2011, 12:08 AM
#94
Bannana Shine
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What about this idea?
We know the numbers of the cars keeps dwindling as time marches on. We all love these cars and many people here are truly gifted and have the smarts to make things out of better materials or better design than original parts. I saw this on some show on the BBC . The owners club for the MG (I think it was the MG) in Britain had had huge facility of new, used replacement parts for the cars. They took everything in repaired it and shipped parts all over the world for the cars. The goal was to keep the MG alive.
While I know there are clubs and developments. We should create our own roadmap for the future of the 928. Weather it's building a newer engine based on newer tech or taking the original blocks and going from there. I have seen several threads since I have joined about part x NLA what now. Invariably someone "usually Roger" pipes up with an I'm working on it or here is the solution.
An organized effort based on a solid plan.
We know the numbers of the cars keeps dwindling as time marches on. We all love these cars and many people here are truly gifted and have the smarts to make things out of better materials or better design than original parts. I saw this on some show on the BBC . The owners club for the MG (I think it was the MG) in Britain had had huge facility of new, used replacement parts for the cars. They took everything in repaired it and shipped parts all over the world for the cars. The goal was to keep the MG alive.
While I know there are clubs and developments. We should create our own roadmap for the future of the 928. Weather it's building a newer engine based on newer tech or taking the original blocks and going from there. I have seen several threads since I have joined about part x NLA what now. Invariably someone "usually Roger" pipes up with an I'm working on it or here is the solution.
An organized effort based on a solid plan.
You should start a thread on that.
01-20-2011, 12:30 AM
#95
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swaps will likely, never catch on for the 928s.
but, i think a complete bolt-in setup to change over to chevy would be a great way to continue to enjoy the cars.
but, i think a complete bolt-in setup to change over to chevy would be a great way to continue to enjoy the cars.
01-20-2011, 12:44 AM
#96
Burning Brakes
Concentrated effort toward a common goal. "Project 928 and beyond". I think I will start a thread.
09-08-2020, 04:10 AM
#97
Rennlist Member
Everyone of you has still missed the point. Any of the cayenne engines that was made and nikasiled is a real problem. Just wait and see the price of these engines in about 5 more years. Any running one will be worth gold. All the used ones are becoming a big liability for Porsche. The plating is failing just like the factory BMW problems of the late 1990's. Porsche has a real mess on their hands.
(Of course, the Cayenne VR6 is proving to be amazingly resilient, and at 250 PS (184 kW; 247 hp), it's more powerful than the early 928 motor at 240 PS (177 kW; 237 hp). Plus, the 928 is 1,000 pounds lighter than the P!g. Just sayin'...)
Last edited by Shawn Stanford; 09-08-2020 at 04:11 AM.
