A guy came by my PRI booth over 10 years ago. He designed a pneumatic system that would replace an 1.55" valve spring, on the average racing small block. I don't know whatever happened to that system. My first thought was, that's great, and I'd love to use it, but I would bet that every sanctioning body would make it illegal, as soon as they saw it.hoffman900 wrote: ↑Wed Dec 20, 2017 4:16 amThe pneumatic buckets like have been used in Formula One for almost two decades now would be a giant leap.panic wrote: ↑Tue Dec 19, 2017 8:39 pm That's backwards from the way I do it.
Ooppss - my bad, those numbers not given in priority order, of course the engine's needs are paramount, thanks for clarifying.
If something new comes along to replace oil as we know it (or a non-friction surface treatment) so we can use bigger springs, the dynamic part will become really interesting...
Camshaft design
Moderator: Team
Re: Camshaft design
Mike Jones
Jones Cam Designs
Denver, NC
jonescams@bellsouth.net
http://www.jonescams.com
Jones Cam Designs' HotPass Vendors Forum: viewforum.php?f=44
(704)489-2449
Jones Cam Designs
Denver, NC
jonescams@bellsouth.net
http://www.jonescams.com
Jones Cam Designs' HotPass Vendors Forum: viewforum.php?f=44
(704)489-2449
Re: Camshaft design
All this stuff is way above my pay grade and kudos to those of you with the brains to help those of us without the knowledge to understand this subject.
I might have been ok but I had to quit school in 6th grade because the teacher didn't want me and my Dad in the same class...
I might have been ok but I had to quit school in 6th grade because the teacher didn't want me and my Dad in the same class...
Honored to be a member of the Luxemburg Speedway Hall of Fame Class of 2019
Re: Camshaft design
All this stuff is way above my pay grade and kudos to those of you with the brains to help those of us without the knowledge to understand this subject.
I might have been ok but I had to quit school in 6th grade because the teacher didn't want me and my Dad in the same class...
I might have been ok but I had to quit school in 6th grade because the teacher didn't want me and my Dad in the same class...
Honored to be a member of the Luxemburg Speedway Hall of Fame Class of 2019
-
- Guru
- Posts: 1747
- Joined: Tue Jan 15, 2013 8:10 pm
- Location:
Re:
The pneumatic valve spring, and the vintage, sounds like the outfit whose pretty extensive and picture laden catalog had the owner performing every task in every picture.
I remember thinking when Renault came out with what was called pneumatic valve "springs" on their F1 engines in the 80s that the FORD guy (no longer heard of) was maybe on to something, and wondering if Renault had maybe even bought the technology (unlikely, but ....).
Re: Camshaft design
That would be Pro Stock Paul. He had a company called Pro Stock Engineering. I remember Ford mags from the 80's that had his ad on the back covers and reading about his air springs.
-
- HotPass
- Posts: 3468
- Joined: Sat Feb 23, 2013 5:42 pm
- Location:
Re: Camshaft design
Going back to cam design, I always think of the old watchmakers and their automatons:
https://www.youtube.com/watch?v=bY_wfKVjuJM
https://www.youtube.com/watch?v=bY_wfKVjuJM
-Bob
-
- Guru
- Posts: 5566
- Joined: Sun Feb 19, 2006 10:19 am
- Location: MA
Re: Camshaft design
The "writer" is an incredible piece of work!hoffman900 wrote: ↑Tue Dec 26, 2017 9:45 am Going back to cam design, I always think of the old watchmakers and their automatons:
https://www.youtube.com/watch?v=bY_wfKVjuJM
Automotive Machining, cylinder head rebuilding, engine building. Can't seem to quit
-
- Guru
- Posts: 5566
- Joined: Sun Feb 19, 2006 10:19 am
- Location: MA
Re: Camshaft design
Automotive Machining, cylinder head rebuilding, engine building. Can't seem to quit
-
- Guru
- Posts: 4162
- Joined: Sun Jan 29, 2006 9:46 pm
- Location: Lund in Sweden
- Contact:
-
- Guru
- Posts: 5566
- Joined: Sun Feb 19, 2006 10:19 am
- Location: MA
Re: Camshaft design
At the wayback machine http://archive.org/search.phpErland Cox wrote: ↑Sun Dec 31, 2017 3:55 pm Can this page or what was on it be found somewhere: http://www.harveycrane.com/
Erland
Automotive Machining, cylinder head rebuilding, engine building. Can't seem to quit
-
- Guru
- Posts: 6046
- Joined: Sat May 20, 2006 6:28 pm
- Location:
Re: Camshaft design
I still think piezoelectric will one day work for valvetrains. Imagine unlimited "curves" and valve lifts at any rpm merely by programming...
-
- Vendor
- Posts: 11003
- Joined: Mon Apr 11, 2005 2:30 am
- Location: CA
Re: Camshaft design
I probably have the images from it somewhere on a hard drive in storage.Erland Cox wrote: ↑Sun Dec 31, 2017 3:55 pm Can this page or what was on it be found somewhere: http://www.harveycrane.com/
Erland
Is there something that you are particularly interested in?
Helping to Deliver the Promise of Flying Cars
-
- Guru
- Posts: 5566
- Joined: Sun Feb 19, 2006 10:19 am
- Location: MA
Re: Camshaft design
There are 137 captures, here is oneKeith Morganstein wrote: ↑Sun Dec 31, 2017 4:20 pmAt the wayback machine http://archive.org/search.phpErland Cox wrote: ↑Sun Dec 31, 2017 3:55 pm Can this page or what was on it be found somewhere: http://www.harveycrane.com/
Erland
http://web.archive.org/web/200806191440 ... ne.com:80/
Automotive Machining, cylinder head rebuilding, engine building. Can't seem to quit
-
- HotPass
- Posts: 3468
- Joined: Sat Feb 23, 2013 5:42 pm
- Location:
Re: Camshaft design
-delete- double post
Last edited by hoffman900 on Mon Jan 01, 2018 2:41 pm, edited 1 time in total.
-Bob