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  #31  
Old 07-29-2011, 05:57 PM
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Default Re: IPB-Autosport 996 GT3 4 Liter

Case cleaned and ready to go. Main and intermediate shaft bearings go in, followed by the crankshaft assembly.

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Crank is in. Porsche coat hanger special tool supports the new timing chains. Oil pump is also in.

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Tensioning the oil pump nuts.

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Time to glue the case.

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Cleanliness is the key to getting a perfect seal.

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Spread it with a brush.

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Other case half is on.

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Special tools are required to properly seat the through-bolt seals.

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The through bolts are tensioned.

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Then the nuts around the case perimeter.

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The case is now put together. Next step… pistons.
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  #32  
Old 09-20-2011, 12:13 AM
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Default Re: IPB-Autosport 996 GT3 4 Liter

The center piston is attached to the rods first… The outer pistons are inserted into the liners before attachment to the rods. Unfortunately, with non OEM size pistons or wrist pins, the factory tools are useless. This is where the challenge is.

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The housing is slid on with the outer two liners already in.

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Of course the cylinders are stuffed to prevent the wrist pin clip from falling into the engine as you struggle to attach it.

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At least you can use the factory tool to slide the inner sleeve in. Let me reiterate how difficult it was to get these rings in. Extra hands were necessary.

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One bank done, on to the next one.

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Center sleeve to go…

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In frustration, time to do something easy. Chain housings and guides.

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Last one to go…

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All pistons are in as of 8pm tonight. Thank god.

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In the meantime…I had my stock 996 intakes port matched to the 997 cup heads.

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996 intake plenum. Note that this will NOT be replaced with the snake oil IPD intake.

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And the 997 throttle body just came in today too!

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997 throttle body measures in at 84mm.

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996 plenum is only 78mm. Back to the machine shop…

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  #33  
Old 09-22-2011, 10:45 AM
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Default Re: IPB-Autosport 996 GT3 4 Liter

Time to install the cam housings. On top of new seals between the chain housings and cam housings, a layer of Drei Bond is applied to ensure there are no leaks.

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Brand new lifters (tappets) are soaked in Swepco and positioned.

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Cams are placed with the cylinder 1 lobes on the exhaust and intake cams facing each other. The crank is just off TDC. Porsche special tool is utilized to prevent the chain from falling in.

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Cam gears are positioned onto the cams. This is where we realize we received Cup intake cam bolts, which are half the length (no variable valve timing on cup). We will time bank 1 once we get the bolts and then move on to bank 2.

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We’re getting close to having a complete long block.
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  #34  
Old 09-22-2011, 10:47 AM
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Default Re: IPB-Autosport 996 GT3 4 Liter

Thank you once again for all the information. How much of a difference will there be in the engine mounting points do you think and will there be any modifications to the engine bay to fit it?
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  #35  
Old 09-22-2011, 03:34 PM
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Default Re: IPB-Autosport 996 GT3 4 Liter

The engine will fit just as it did before. Once it's all put together, there really won't be any visual cues that identify it as not stock.
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  #36  
Old 09-26-2011, 05:32 PM
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Default Re: IPB-Autosport 996 GT3 4 Liter

Any progress? DO keep us posted... Thanks!
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  #37  
Old 11-23-2011, 10:31 AM
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Default Re: IPB-Autosport 996 GT3 4 Liter

Haven't had a chance to keep this thread up to date, but we just recently had the engine's first start up:

http://www.youtube.com/watch?v=d-Js9-BAJ64
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  #38  
Old 12-17-2011, 02:03 AM
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Default Re: IPB-Autosport 996 GT3 4 Liter

How's the project going? Is the car driving yet? How is it? Curious car nuts wanna know!

-Christian
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