968 Turbo Build
#1
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968 Turbo Build
I am not a regular here guys, as my specialty is more alonfg the lines of Drag racing fabrication, but I was recently contracted to fabricate some items for a 944 with a 968 engine. Now being that I am not a Porsche specialist, I don't know all the details on the engine build. I do know that the base engine uses a 968 block that has been darton sleeved and stroked and built for high boost.
My portion of this build is to fabricate the hot and cold side of the turbo system as well as a custom intake that utilizes individual throttle bodies.
Below are some images of my progress thus far, i will update this thread as i make progress, which will probably be on a daily basis.
As of right now I have the majority of the intake complete, minus the upper plenum portion. I have mocked up my header and will be getting started on transferring my design to 321 stainless tomorrow.
Thanks for looking
Craig Sheffield
Sheffield Race Cars
(850) 896 9064
csheffield0524@aol.com
Sheffield Race Cars Facebook Page.
http://www.facebook.com/pages/Panama...00411350044603
Factory Manifold after being cut and machined
Soon to be the throttle body adapter plate
Upper Plenum Lower base plate
Upper plenum top section
Both pieces bolted together
Bolted to the ITB's
Machining the custom header flanges
Adding a chamfer
The finished flanges
Flanges bolted in place ready to mock up the custom header
My portion of this build is to fabricate the hot and cold side of the turbo system as well as a custom intake that utilizes individual throttle bodies.
Below are some images of my progress thus far, i will update this thread as i make progress, which will probably be on a daily basis.
As of right now I have the majority of the intake complete, minus the upper plenum portion. I have mocked up my header and will be getting started on transferring my design to 321 stainless tomorrow.
Thanks for looking
Craig Sheffield
Sheffield Race Cars
(850) 896 9064
csheffield0524@aol.com
Sheffield Race Cars Facebook Page.
http://www.facebook.com/pages/Panama...00411350044603
Factory Manifold after being cut and machined
Soon to be the throttle body adapter plate
Upper Plenum Lower base plate
Upper plenum top section
Both pieces bolted together
Bolted to the ITB's
Machining the custom header flanges
Adding a chamfer
The finished flanges
Flanges bolted in place ready to mock up the custom header
#4
Craig,
looks like a very professional build up. You have fabricated some real nice parts. Do you know what kind of brake booster setup your customer is going to use? Most likely original booster is too big to work with the plenum you are going to build.
looks like a very professional build up. You have fabricated some real nice parts. Do you know what kind of brake booster setup your customer is going to use? Most likely original booster is too big to work with the plenum you are going to build.
#5
Rennlist Member
Your work is beautiful! If only I had your shop... and your skills... and a bunch of free time...
I am curious, however, why did you elect to place the ITB's so far from the head? I'm sure you have good reason, I've just typically seen them right up against the port.
I am curious, however, why did you elect to place the ITB's so far from the head? I'm sure you have good reason, I've just typically seen them right up against the port.
#6
What type of HP #'s are you expecting?, stock turbo set up (In an article I read) claims 0-60 4.7 seconds
at some point I will be doing this 968 engine upgrade, might not do a turbo, but who knows.
keep us posted
at some point I will be doing this 968 engine upgrade, might not do a turbo, but who knows.
keep us posted
#7
Rennlist Member
Looks fantastic. Do you plan on making these parts available for sale?
Thanks for sharing.
Thanks for sharing.
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#10
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Craig Sheffield
Sheffield Race Cars
(850) 896 9064
csheffield0524@aol.com
Sheffield Race Cars Facebook Page. Become a fan today!
http://www.facebook.com/pages/Sheffi...00411350044603
#11
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Your work is beautiful! If only I had your shop... and your skills... and a bunch of free time...
I am curious, however, why did you elect to place the ITB's so far from the head? I'm sure you have good reason, I've just typically seen them right up against the port.
I am curious, however, why did you elect to place the ITB's so far from the head? I'm sure you have good reason, I've just typically seen them right up against the port.
Craig Sheffield
Sheffield Race Cars
(850) 896 9064
csheffield0524@aol.com
Sheffield Race Cars Facebook Page. Become a fan today!
http://www.facebook.com/pages/Sheffi...00411350044603
#12
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Craig Sheffield
Sheffield Race Cars
(850) 896 9064
csheffield0524@aol.com
Sheffield Race Cars Facebook Page. Become a fan today!
http://www.facebook.com/pages/Sheffi...00411350044603
#13
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Craig Sheffield
Sheffield Race Cars
(850) 896 9064
csheffield0524@aol.com
Sheffield Race Cars Facebook Page. Become a fan today!
http://www.facebook.com/pages/Sheffi...00411350044603
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I made some progress today on the header. I was able to get it all tacked together and ready to be finish welded. Next I will concentrate on the cross over pipe.
See images below
Craig Sheffield
Sheffield Race Cars
(850) 896 9064
csheffield0524@aol.com
Sheffield Race Cars Facebook Page. Become a fan today!
http://www.facebook.com/pages/Sheffi...00411350044603
See images below
Craig Sheffield
Sheffield Race Cars
(850) 896 9064
csheffield0524@aol.com
Sheffield Race Cars Facebook Page. Become a fan today!
http://www.facebook.com/pages/Sheffi...00411350044603