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914-6Werkshop
 
Join Date: Dec 2009
Location: Wilmington, DE
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Quote:
Originally Posted by Catorce View Post
Realistically would have to sell 100+ cases to be in the black. I'm not saying it won't eventually happen, it's just that it seems so far away
Wishing you the best on this project.
I Imagine the singer guys must have some interest.
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Old 10-05-2018, 06:54 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #41 (permalink)
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Mag. case for Porsche Historic Racing.

Quote:
Originally Posted by Catorce View Post
Tommy, Looks good, not sure if you are aware that CMW here in CA already has made a billet case. They just put them up for sale

993 Billet Engine Cases

Not cheap, but they are available; perhaps this is a shortcut for you.
Thank you - Adam.

Quote:
Originally Posted by jpnovak View Post
66x98 please.
Jamie.

Please see PM.

Quote:
Originally Posted by cmcfaul View Post
What you want ideally is the 7R case. However, magnesium gets brittle with many heat cycles. Very hot heat cycles make it worse. That being said, the 7R cases are the strongest.

Chris

73 E
Chris.
We startede with the 1R mag. case as used in the 2.2. Then reinforced it as the 7R case with all built-in racing mods.

No additional machine work will be necessary.

Did our first test on the DMG MORI this weekend.





Thanks - Olsen911 - Tommy Olsen.
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Old 10-08-2018, 12:15 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #42 (permalink)
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Great machine!
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Current: 1970 914-6 conversion 2.7, 1973 T, 1975 930 Turbo Targa, 1978 928 Race car, 6.57L, 1983 911SC, 1987 928S4 5 speed, 2002 911 Targa, 2007 997TT, 2009 997TT, 2004 40th Anniversary Carrera

Only reproduction 3.6 cases on the planet, coming soon www.taorminaracingdesigns.com
Old 10-08-2018, 07:16 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #43 (permalink)
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Mag. case for Porsche Historic Racing.

New design with incorporate fins at the bottom of the case (RSR).



Thanks - Olsen911 - Tommy Olsen
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Old 10-10-2018, 11:41 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #44 (permalink)
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Henry Schmidt's Avatar
 
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Quote:
Originally Posted by Olsen911 View Post
New design with incorporate fins at the bottom of the case (RSR).



Thanks - Olsen911 - Tommy Olsen
Computer renderings offer little to judge a project's potential but so far, I like what I see.
Cheers

Although there is almost nothing of less valuable than unsolicited advise I might suggest incorporating the head stud holes into the cylinder boss.
They can be counter bored if desired but additional head stud threads seems like a positive modification. The pictures shows case through bolts incorporated in the boss as well, I think that would be a mistake. It forces the builder to use 964 style case through bolts and washers.

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Last edited by Henry Schmidt; 10-11-2018 at 06:13 AM..
Old 10-11-2018, 05:59 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #45 (permalink)
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Quote:
Originally Posted by Henry Schmidt View Post
Computer renderings offer little to judge a project's potential but so far, I like what I see.
Cheers

Although there is almost nothing of less valuable than unsolicited advise I might suggest incorporating the head stud holes into the cylinder boss.
They can be counter bored if desired but additional head stud threads seems like a positive modification. The pictures shows case through bolts incorporated in the boss as well, I think that would be a mistake. It forces the builder to use 964 style case through bolts and washers.

Good advice - Thank you - Henry.

Like this:



Let me know.?

Thanks - Olsen911 - Tommy Olsen.
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Old 10-14-2018, 09:01 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #46 (permalink)
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Henry Schmidt's Avatar
 
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Quote:
Originally Posted by Olsen911 View Post
Good advice - Thank you - Henry.

Like this:



Let me know.?

Thanks - Olsen911 - Tommy Olsen.
Maybe even add support between the cylinders.....
Cylinder stability is so important.


----------------------
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Old 10-14-2018, 10:05 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #47 (permalink)
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Mag. case for Porsche Historic Racing.

Quote:
Originally Posted by Henry Schmidt View Post
Maybe even add support between the cylinders.....
Cylinder stability is so important.


----------------------
Henry.

Maybe we schould add strength throughout the area.

Like this:



Let me know.?

Thanks - Olsen911 - Tommy Olsen.
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Old 10-18-2018, 03:36 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #48 (permalink)
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Tommy, my opinion is that you were on the right track the first time. What Henry is not taking into account is that you are NOT working with an original Porsche casting. I am not sure what material you are using, but any billet will be an order of magnitude stronger than a magnesium case, and you are running small bores.

You're just making the case needlessly heavier. I have done a ton of structural testing for my case and also had consulting engineers. My alloy is some 30% stronger than an equivalent Porsche case. Your should be too, but in order to actually quote strength you'll need to involve engineers. I know, expensive.

I would not worry about the strength of a 2L case made from billet *whatsoever*. It will be bomb proof.

My $.02
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Only reproduction 3.6 cases on the planet, coming soon www.taorminaracingdesigns.com
Old 10-18-2018, 07:32 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #49 (permalink)
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