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Old Dec 13, 2005 | 11:11 AM
  #46  
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Originally Posted by John Veninger
Not the same price. Accusump will run you ~$600.00 for all the parts and bolt on in an afternoon. Dry sump parts and installation will be much more complicated and expensive.
Sorry, I was thinking.. $600 for sump, $1500 crank drilling etc.. Now your not far from a dry sump kit. Harder install but not as bad as you think.
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Old Dec 13, 2005 | 11:15 AM
  #47  
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A drilled cank is $700.00 plus shipping. A dry sump DOESN'T solve all the oil issues with the crank. You need both to be sure your trouble free.
I'm slowly understanding exactly how hard a drysump is to install
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Old Dec 13, 2005 | 11:16 AM
  #48  
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Looking at Mark's it looks so simple. Flat pan. Scvenging pump (most expensive part) and tube tank. What more? Why so expensive/hard?
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Old Dec 13, 2005 | 11:36 AM
  #49  
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Custom fabricated pan($1,000?), $700.00 pump, $500.00 remote tank, pulley and cog belt, modified/fabricated drive for pump, modified pump bracket, hoses, and then dropping the cross member or pulling the motor to install the pan.
Mark's pan is not flat and has many pieces and welds to make it fit, including a mini starter.

Guess expensive/hard has different meanings to different people.
So how many people would buy a drysump kit for their street 928 for $3K+ if an accusump would do? I'm talking about street cars, not track cars. As we know there isn't a large 928 track car only market.
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Old Dec 13, 2005 | 11:40 AM
  #50  
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600 bucks is definitely the way to go. I don't see the need for custom pan except a hole for the scavenger and a longer pickup to exit the sump and a tube.
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Old Dec 13, 2005 | 11:48 AM
  #51  
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Originally Posted by John Veninger
Guess expensive/hard has different meanings to different people.
So how many people would buy a drysump kit for their street 928 for $3K+ if an accusump would do? I'm talking about street cars, not track cars. As we know there isn't a large 928 track car only market.
John, your absolutely right. For a street car, it's not really worth it. Its harder than most people think. I'm not trying to kid anyone there.

But if I had $10k plus in a race motor(and I have a couple 944T) a dry sump is peanuts and a great piece of mind.

The parts and labor you listed are all needed. His pan may have been cheaper if its welded sheet metal etc. $1000 is for a custom cast aluminum pan with scavenger fittings etc.
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Old Dec 13, 2005 | 11:53 AM
  #52  
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The issue is that the $1k pan is only in certain quantities like 10 or more, right? Chances of that are slim. If that price was for less than 6, you might have a chance at getting enough interest...
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Old Dec 13, 2005 | 11:55 AM
  #53  
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Is Accusump really only 600 bucks? Sounds very optimistic? AND can stock pan be used for drysump?
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Old Dec 13, 2005 | 12:02 PM
  #54  
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Originally Posted by Stan.Shaw@Excell.Net
The issue is that the $1k pan is only in certain quantities like 10 or more, right? Chances of that are slim. If that price was for less than 6, you might have a chance at getting enough interest...
Stan, your correct. I think its safe to say, it would not be worth it to ramp up a big project just to make a couple.
Even to making six does not even paying for the time and materials to make them. Even if it did, they probably never sell another one again. I don't know many companies looking to work for free.
This is why I asked. I just wanted to see if this was a good or bad idea. I'm doing it for the 944 turbo but I think there are alot more people running the 944 motor than 928.
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Old Dec 13, 2005 | 12:04 PM
  #55  
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i share the view that the engineering solution for a drysump shouldnt be that technicaly difficult. also i think the cost is not so bad when you look at the alternative; i dont like the acusump idea as i dont trust its ability to remove aerated oil from the equation. why couldnt the existing sump be used for a drysump system with just a couple of scavenge points?
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Old Dec 13, 2005 | 12:06 PM
  #56  
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Exactly.
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Old Dec 13, 2005 | 12:11 PM
  #57  
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Originally Posted by drnick
i share the view that the engineering solution for a drysump shouldnt be that technicaly difficult. also i think the cost is not so bad when you look at the alternative; i dont like the acusump idea as i dont trust its ability to remove aerated oil from the equation. why couldnt the existing sump be used for a drysump system with just a couple of scavenge points?
I thought the same until I consulted a pro builder. Trust me, I'm all for the DIY and a stock pan might be able to be used but... maybe its not good?

The pan I would get made would be engineered by a pro sump builder. Not by someone drilling and welding holes in thier pan, hoping it works. Thats why its expensive.

I don't think an accusump does anything about foaming. I would believe it just traps whatever is pushed into it...just a guess.

As far as "the alternative" a blown $3,5,10,15k motor. I agree, Thats why I checked into this.
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Old Dec 13, 2005 | 12:13 PM
  #58  
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Let's drill and weld
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Old Dec 13, 2005 | 12:17 PM
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The estimate I got for welding up an existing oil pan for use as a dry sump was $750, so is not a trivial expense. Logically if the $1k cast oil pan could be obtained instead, it would be a no brainer, but how many are ready to plunk $1k down for the oil pan..... probably not enough. I would be very interested.
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Old Dec 13, 2005 | 12:21 PM
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I know I'm oversimplifying but tap an exit hole and bolt a tube to the pickup with a threaded exit point to a manufactured hose to the drysump floor. Tap another hole for the scavenger to the drysump ceiling. No?
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