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Henry Schmidt's Avatar
 
Join Date: Apr 2004
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Who made these slides?

Any idea who made this slide valve intake?
I think I know who designed it but he says he lost control of the plans and a third party knocked out a couple sets.
I saw a set on an EBay engine for sale this week but the owner doesn't know who commissioned them.
Any information would be helpful.



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Old 07-06-2023, 03:57 PM
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just an idea ..why don`t contact Tony Callas?

Ivan
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Old 07-08-2023, 10:03 AM
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It's a 914 ...
 
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I thought of Protechnik, but some pics that turned up in a search look different than these.
Old 07-08-2023, 10:52 AM
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Possibly one offs? Looks like these Fabworz ones that I found the CAD of.

https://grabcad.com/library/porsche-slide-valve-throttle-bodies

https://instagram.com/fabworkz?igshid=YmM0MjE2YWMzOA==

Last edited by Evan Fullerton; 07-08-2023 at 02:11 PM..
Old 07-08-2023, 02:04 PM
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Henry Schmidt's Avatar
 
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Quote:
Originally Posted by Evan Fullerton View Post
The cad renderings looks correct. We know they aren't one off because I have one set and Euro Parts West just sold an engine with a matching set.
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Old 07-08-2023, 02:38 PM
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Well anyone could have made a set with the publicly available CAD.

Same guy was making some barrel throttles 5 years ago according to his Instagram. Probably worth an email Aaron@fabworkz.com.

Farr Yacht Design follows his Instagram and they are legit as it gets in the monohull racing yacht world so he must be a pretty legit small engineer/manufacturing shop.

Old 07-08-2023, 03:36 PM
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Aaron Hatz?
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Old 07-08-2023, 08:59 PM
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cycling has-been
 
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If Fred Apgar was still around, he'd be able to ID them.....
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Old 07-10-2023, 11:30 AM
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These are (unfinished) Protechnik ITBs. Like stownsen914 said, not a match to Henry's photo.

Old 07-10-2023, 04:41 PM
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After some slight modifications and detailing these slides found a home.
Sitting on top of a Supertec 3.8 engine.




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Old 07-15-2023, 10:52 AM
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They found a home:

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Old 05-11-2024, 07:46 AM
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Henry are you still selling reconditioned rockers with exchange?
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Old 05-11-2024, 07:53 AM
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Quote:
Originally Posted by Dpmulvan View Post
Henry are you still selling reconditioned rockers with exchange?
yes

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Old 05-25-2024, 01:26 PM
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