Dry sumping
12-13-2005, 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.
12-13-2005, 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
I'm slowly understanding exactly how hard a drysump is to install
12-13-2005, 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.
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.
12-13-2005, 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.
12-13-2005, 11:48 AM
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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.
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.
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.
12-13-2005, 11:53 AM
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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...
12-13-2005, 12:02 PM
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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...
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.
12-13-2005, 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?
12-13-2005, 12:11 PM
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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?
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.
12-13-2005, 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. 
12-13-2005, 12:21 PM
#60
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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?