Hey...wait for me Stroker Club
10-10-2003, 12:17 PM
#46
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Thanks Jay, besides the camera ive had the video running. I dont think there is an inch on this motor that i dont have some sort of video for reference. I know i have one of the cam brackets as i saw they are all numbered and thought "i better get that"
10-10-2003, 10:28 PM
#49
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Greg Gray wrote:
I'm with Brendan in the JE piston camp running either coated or nikasil cylinders.
My plan is to use 60 over Small Block Chevy pistons (103.xx mm) with the same compression height and cut outs as the 968 piston. This will save having to do any machining on the small end of the con rod.
On an unrelated note, I recently had a chance to speak with a guy that is rebuilding his Lambo. Check this out, the engine block is aluminum, the sleeves are steel and float in the block. The way he explained it, the steel sleeves drop into the cylinders, and have a flange around the upper rim that rides on top of the cylinder wall. The underside of the flange is O-ringed to mate to the top of the cylinder. What holds the sleeve in place? Yup, the head, which sandwiches the sleeve flange between the head and cylinder. I asked him what happens of the sleeve O-ring fails? "Oil in the water." I'm hoping to get a chance to see this set up soon, sounds to weird to be true.
What pistons are you guys going to use? That includes all three of you.
My plan is to use 60 over Small Block Chevy pistons (103.xx mm) with the same compression height and cut outs as the 968 piston. This will save having to do any machining on the small end of the con rod.
On an unrelated note, I recently had a chance to speak with a guy that is rebuilding his Lambo. Check this out, the engine block is aluminum, the sleeves are steel and float in the block. The way he explained it, the steel sleeves drop into the cylinders, and have a flange around the upper rim that rides on top of the cylinder wall. The underside of the flange is O-ringed to mate to the top of the cylinder. What holds the sleeve in place? Yup, the head, which sandwiches the sleeve flange between the head and cylinder. I asked him what happens of the sleeve O-ring fails? "Oil in the water." I'm hoping to get a chance to see this set up soon, sounds to weird to be true.
10-10-2003, 11:09 PM
#50
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Adam,
That sleeve is called a wet sleeve; about 20 years ago I rebuilt a diesel international motor that had wet sleeves. The sleeve sits in the coolant and can be removed. To install them you place them in dry ice. A lot of trucks still use them; it is cheaper to replace a sleeve then an expensive block.
Good luck to all.
That sleeve is called a wet sleeve; about 20 years ago I rebuilt a diesel international motor that had wet sleeves. The sleeve sits in the coolant and can be removed. To install them you place them in dry ice. A lot of trucks still use them; it is cheaper to replace a sleeve then an expensive block.
Good luck to all.
10-11-2003, 12:56 AM
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10-11-2003, 04:07 AM
#52
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Adam,
If you want to see them in a less expensive environment, Alfa Romeo used them on the GTV-6, Milano and other cars as well.
In a lot of ways, it is a really neat set-up. Of course, in other ways, it sucks.
Like all things mechanical.
BTW- Brendan, if you are going to run a 951 gasket, are you going to change you water jacket on the block? Or, more precisely, how are you going to reconcile the difference? It's like bolting on 2 951 heads - it can be done (rather easily actually) but you do need to change a coupla things around to make it work on a 928 block.
Greg
If you want to see them in a less expensive environment, Alfa Romeo used them on the GTV-6, Milano and other cars as well.
In a lot of ways, it is a really neat set-up. Of course, in other ways, it sucks.
Like all things mechanical.
BTW- Brendan, if you are going to run a 951 gasket, are you going to change you water jacket on the block? Or, more precisely, how are you going to reconcile the difference? It's like bolting on 2 951 heads - it can be done (rather easily actually) but you do need to change a coupla things around to make it work on a 928 block.
Greg
10-12-2003, 12:52 AM
#54
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Thats OK Adam, mine were burned off 
well, the wiring harness at least!
Isnt it a treat doing the work on a stand!
You'll be caught up in no time. All my work will come to a screeching halt soon, i wont have anything else to take apart.
Then i have to start figuring out what to do next and how to go about things..where to send things..who does what..etc.
The cheap and easy part is taking it apart!
well, the wiring harness at least!
Isnt it a treat doing the work on a stand!
You'll be caught up in no time. All my work will come to a screeching halt soon, i wont have anything else to take apart.
Then i have to start figuring out what to do next and how to go about things..where to send things..who does what..etc.
The cheap and easy part is taking it apart!
10-12-2003, 03:04 AM
#55
The Gasket I will be using with be sourced from Comtec. It is used in the 951 camps, but the gasket will be for this specific engine. I believe some people here may be getting ready to source them as well. I know I can get them singularily if noone else gets them in bulk. But it will be made to suit the 928 engine.
10-12-2003, 07:35 PM
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Hey Steve! Great pic, thats the best close up pic ive seen of the set up yet. With a spare engine on a stand ive got all kinds of room to play with and am in the process of building a "foam board" mock up of a twin screw intercooled set up. Andy K is light years ahead, but im doing it for my own curiosity more than anything. The 03 cobras are making great power with the Kenne Bell twin screw set up!
Fittment obviously is an issue but to be honest with you, a small tastefull scoup on the hood would solve all of that. All they need to do in that pic is fab a plenum below the SC for the F150 eaton intercooler.
Any more pics?
Fittment obviously is an issue but to be honest with you, a small tastefull scoup on the hood would solve all of that. All they need to do in that pic is fab a plenum below the SC for the F150 eaton intercooler.
Any more pics?
10-12-2003, 09:19 PM
#58
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Tony,
Yes Andy is light years ahead and is the first to have an operational roots blower on a 928.
With Andy’s low profile intake you can place a water to air intercooler in between the intake and the blower. The intake would have to be redesigned. If you want low end torque the lysholm twin screw is the way to go. My V6 AMG with a twin screw makes 349Ft lbs of torque
with 6Cly.
http://www.mbautowerks.com/performance/00001/00001.html
The MB beats the viper
Yes Andy is light years ahead and is the first to have an operational roots blower on a 928.
With Andy’s low profile intake you can place a water to air intercooler in between the intake and the blower. The intake would have to be redesigned. If you want low end torque the lysholm twin screw is the way to go. My V6 AMG with a twin screw makes 349Ft lbs of torque
with 6Cly.
http://www.mbautowerks.com/performance/00001/00001.html
The MB beats the viper
10-13-2003, 01:41 AM
#59
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I love it, there is something so un-natural looking about a MB doing a burnout in the staging lanes! Beautiful car.
How is that SC driven, unless i missed it, i dont see the belt or pulley system?..
How is that SC driven, unless i missed it, i dont see the belt or pulley system?..