Twin Supercharger 928 engine!?
05-06-2003, 08:00 PM
#16
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Ian, this is not the guy or the car in question.I wish I could remember more about the thread, so I could find it in the archives. He talked very little about the car, and lots about the motor. Like I posted previously, he said he had a letter from some engineer that claimed the engines output was 610hp. The link that he posted to the pics was from an independent Porsche repair shop, and had a page with 2 or 3 pics of the engine in question. The pics showed a very dirty, obviously non-running version of the previously posted engine type. The lines on top (running to whatever duct that is connecting the 2 superchargers) were missing, as was one cam cover if I remember correctly. BTW, does anyone know what the lines on the top are for?? The ones that appear to be connected to banjo fittings on the top of that interconnecting duct???
05-06-2003, 11:13 PM
#17
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Chris,
I think those lines are fuel lines to injectors. This appears to be a wet system with the injectors squirting into the blower. As far as I know the Eatons were the first roots blowers produced that did not use this method.
YMMV
Andy K
I think those lines are fuel lines to injectors. This appears to be a wet system with the injectors squirting into the blower. As far as I know the Eatons were the first roots blowers produced that did not use this method.
YMMV
Andy K
05-07-2003, 04:55 AM
#19
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Chris/all!
I have found it! The car has been dismantled by, as you mentioned, a Porsche repair shop and only the engine is left. According to the guy at the shop it was not a Strosek engine, it was not even a twin compressor engine. He stated that someone had tried to put an "american supercharger" (his words, I guess it means Roots) on top of an original 4.5 engine. It has most likely never even been started with the supercharger. He said that this guy had been ripped off and tried to get his money back by doing the same to someone else.
Chris, are you sure that the pictures looked like a Strosek engine?
Well, I will call him anyway and pretend not to know... We'll see what stories he serves me.
Ian
I have found it! The car has been dismantled by, as you mentioned, a Porsche repair shop and only the engine is left. According to the guy at the shop it was not a Strosek engine, it was not even a twin compressor engine. He stated that someone had tried to put an "american supercharger" (his words, I guess it means Roots) on top of an original 4.5 engine. It has most likely never even been started with the supercharger. He said that this guy had been ripped off and tried to get his money back by doing the same to someone else.
Chris, are you sure that the pictures looked like a Strosek engine?
Well, I will call him anyway and pretend not to know... We'll see what stories he serves me.
Ian
05-07-2003, 09:34 PM
#20
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Ian, the pics on the link he provided were of the exact same engine as already shown on page 1 of this thread, EXCEPT like I said, the engine was very dirty and there were some parts missing. It was DEFINITELY the same type of twin supercharged engine.
Andy, thanks for the clarification. I couldn't for the life of me figure out what type of plumbing they had there. I made an assumption that the injectors were in the stock location, so fuel lines didn't even come to mind. :-)
Andy, thanks for the clarification. I couldn't for the life of me figure out what type of plumbing they had there. I made an assumption that the injectors were in the stock location, so fuel lines didn't even come to mind. :-)
05-08-2003, 04:47 AM
#21
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Thread Starter
Ok, thanks Chris!
That leaves two possibilities:
1 Someone has tried to copy a Strosek setup and never completed.
2 This is in fact an original Strosek engine or at least a Strosek induction system.
No matter what is true, I will check it out.
Ian
That leaves two possibilities:
1 Someone has tried to copy a Strosek setup and never completed.
2 This is in fact an original Strosek engine or at least a Strosek induction system.
No matter what is true, I will check it out.
Ian
05-10-2003, 12:49 AM
#22
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I found an article about the car in the pic on the first page of this thread.
It is in the book "Porsche 928 Performance Portfolio 1977-1994" which is a collection of tests of the shark from various magazines.
It is a Strosek, and was called an "Auto-Vittorio 928 SK" (K was for Kompressor.....hmmm haven't we heard that recently...M/B...)
The book credits a magazine called "Car South Africa" and the article is from 4/84.
If anyone is interested, I can scan the 2 page article and post it.
It is in the book "Porsche 928 Performance Portfolio 1977-1994" which is a collection of tests of the shark from various magazines.
It is a Strosek, and was called an "Auto-Vittorio 928 SK" (K was for Kompressor.....hmmm haven't we heard that recently...M/B...)
The book credits a magazine called "Car South Africa" and the article is from 4/84.
If anyone is interested, I can scan the 2 page article and post it.
05-19-2003, 05:12 AM
#24
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OK, I finally got some info from the guy. I will try to post the images below. The car is now broken for parts, he now only has the engine for sale. It comes without the injection system and I guess some other parts might be missing too. He has a standard contract with the seller that says the engine is OK, the compression is OK, and "I garantie the engine is in good gondition". There is a number in the contract, 928 910 2725, I am not sure if this is the engine number(anyone know?). There is also a mentioning that the engine is "ca 600PS". He paid 5200euro for engine and parts car, including a blue S4 leather interior.
The owner tells me the engine has been used for hill racing in Switzerland.
By looking at the pictures, I guess it could be an original Strosek engine. I don't trust the seller and not the "engineer" stating that the engine is in good condition. I like the idea of this engine in my car though...
What do you guys think? Is this an opportunity or should I run away as fast as I could?
<img src="http://www.produdeproductions.com/porsche/photos/race%20engine%201.jpg" alt=" - " />
<a href="http://www.produdeproductions.com/porsche/photos/race%20engine%202.jpg[/IMG]" target="_blank">http://www.produdeproductions.com/porsche/photos/race%20engine%202.jpg[/IMG]</a>
<a href="http://www.produdeproductions.com/porsche/photos/race%20engine%203.jpg[/IMG]" target="_blank">http://www.produdeproductions.com/porsche/photos/race%20engine%203.jpg[/IMG]</a>
The owner tells me the engine has been used for hill racing in Switzerland.
By looking at the pictures, I guess it could be an original Strosek engine. I don't trust the seller and not the "engineer" stating that the engine is in good condition. I like the idea of this engine in my car though...
What do you guys think? Is this an opportunity or should I run away as fast as I could?
<img src="http://www.produdeproductions.com/porsche/photos/race%20engine%201.jpg" alt=" - " />
<a href="http://www.produdeproductions.com/porsche/photos/race%20engine%202.jpg[/IMG]" target="_blank">http://www.produdeproductions.com/porsche/photos/race%20engine%202.jpg[/IMG]</a>
<a href="http://www.produdeproductions.com/porsche/photos/race%20engine%203.jpg[/IMG]" target="_blank">http://www.produdeproductions.com/porsche/photos/race%20engine%203.jpg[/IMG]</a>
05-19-2003, 12:31 PM
#26
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That last picture is not very flattering. It looks as thought the engine suffered a fire. It looks like some melting/blistering on the hose thats thrown over the snout/roller bracket, and the white powder looks like a fire extinguisher put the flame out.
Take Care!
Take Care!
05-19-2003, 12:32 PM
#27
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I believe you have to upload them to the REnnlist server site? Then you put as direct link to that. Email them to me iff you want, ill post them for you.
In the picture though, will the hood close? May want to check if it was a custom/mod hood on that car also!
In the picture though, will the hood close? May want to check if it was a custom/mod hood on that car also!
05-19-2003, 03:39 PM
#28
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If it is cheap, it could be worth it for the parts.
It could be a basis for a pretty impressive project.
The car was built by Strosek, it ran, it was fast,and it survived for a good number of years before it died. It would not be worth it as something you would just clean up, fix one or two things, and be on your way. But if you have the inclination to build a new engine, and get those superchargers cleaned up and mounted, you could build up a pretty bada$$ engine... But without a thorough rebuild and inspection of all the internals and parts, it would be likely to not run well, if at all... But if it could be brought back up to snuff, it would be pretty awesome...By the looks of it, it was probably not a fire. It looks more like it was left exposed to the elements for too long. I would want to take the entire thing apart, and clean up all the rusty and oxidized parts, and check all the parts for damage. Who knows how many rodents are currently living in those blowers!
A lot depends on how much they want for it.
And how much time and money you want to put into it.
The good thing is that the system once worked, so the brackets,
pulleys, and all that, should work fine...
It could be a basis for a pretty impressive project.
The car was built by Strosek, it ran, it was fast,and it survived for a good number of years before it died. It would not be worth it as something you would just clean up, fix one or two things, and be on your way. But if you have the inclination to build a new engine, and get those superchargers cleaned up and mounted, you could build up a pretty bada$$ engine... But without a thorough rebuild and inspection of all the internals and parts, it would be likely to not run well, if at all... But if it could be brought back up to snuff, it would be pretty awesome...By the looks of it, it was probably not a fire. It looks more like it was left exposed to the elements for too long. I would want to take the entire thing apart, and clean up all the rusty and oxidized parts, and check all the parts for damage. Who knows how many rodents are currently living in those blowers!
A lot depends on how much they want for it.
And how much time and money you want to put into it.
The good thing is that the system once worked, so the brackets,
pulleys, and all that, should work fine...
05-19-2003, 04:15 PM
#29
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Strange that they have gone back to using the regular CIS injectors, versus the pull-through injectors on top of the Strosek manifold.
<img src="http://members.rennlist.com/porken/Strosek201.jpg" alt=" - " />
<img src="http://members.rennlist.com/porken/Strosek202.jpg" alt=" - " />
<img src="http://members.rennlist.com/porken/Strosek203.jpg" alt=" - " />
<img src="http://members.rennlist.com/porken/Strosek201.jpg" alt=" - " />
<img src="http://members.rennlist.com/porken/Strosek202.jpg" alt=" - " />
<img src="http://members.rennlist.com/porken/Strosek203.jpg" alt=" - " />
05-19-2003, 05:47 PM
#30
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It looks dirty enough to grow a potted plant in there!
That aluminum is *severely* oxidized.
If it is just as bad in the interior of those blowers, they will need some serious TLC.
That engine really needs to be rebuilt from the ground up.
Every piece refinished, inspected, and repaired or replaced.
It's a mess.
It would almost be cheaper and easier to build something from scratch on a clean and healthy engine...
Sad...
That was an awesome setup.
It is too bad someone left it out in the weather for so long, and let it deteriorate...
That aluminum is *severely* oxidized.
If it is just as bad in the interior of those blowers, they will need some serious TLC.
That engine really needs to be rebuilt from the ground up.
Every piece refinished, inspected, and repaired or replaced.
It's a mess.
It would almost be cheaper and easier to build something from scratch on a clean and healthy engine...
Sad...
That was an awesome setup.
It is too bad someone left it out in the weather for so long, and let it deteriorate...