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ideola
Joined: 01 Oct 2004
Posts: 15548
Location: Spring Lake MI
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 Posted: Wed Dec 21, 2016 12:34 pm Post subject: OT: Cool as s#!+ DIY rotary valve head |
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http://jalo.ps/ufe4lxE
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joecitizennn
Joined: 12 Sep 2005
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Location: no mans land
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| Posted: Wed Dec 21, 2016 12:54 pm Post subject: |
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Remind me...why is that cool? Have you always wanted a German built mosquito fogger?
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Defender405
Joined: 13 Feb 2015
Posts: 60
Location: Des Moines, IA
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| Posted: Wed Dec 21, 2016 1:42 pm Post subject: |
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Really cool idea, I'm with Dan on this one.
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1979 924 N/A
1975 MGB
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Fifty50Plus
Joined: 28 Feb 2008
Posts: 1361
Location: Washington DC area
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| Posted: Wed Dec 21, 2016 2:01 pm Post subject: |
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Reminds me of the Wright brothers first effort.
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1979 924 NA race car
1982 924 NA race car - Sold
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1981 924 Turbo a real PoS, new engine
1982 924 Turbo nice body, blown engine
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Various 944s to become IT-S race car |
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ideola
Joined: 01 Oct 2004
Posts: 15548
Location: Spring Lake MI
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| Posted: Wed Dec 21, 2016 2:05 pm Post subject: |
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| joecitizennn wrote: | | why is that cool? |
1. DIY
2. Rotary f*&#ing valves
3. DIY
4. It runs
5. Did I mention DIY?
6. I don't recall ever seeing an example of a running rotary valve engine, much less one that is full functional in a real car.
Since you didn't bother reading the article, I won't dignify the mosquito fogger remark with further comment.
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Rasta Monsta
Joined: 12 Jul 2006
Posts: 11724
Location: PacNW
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| Posted: Wed Dec 21, 2016 2:22 pm Post subject: |
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Now, ladies
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morghen
Joined: 21 Jan 2005
Posts: 8884
Location: Romania
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| Posted: Wed Dec 21, 2016 5:48 pm Post subject: |
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Very interesting. Certainly quite some effort went into that thing.
He seems to use carbs and carb plates as valves.
Ingenious but I cant help to think what if a cam could serve as valves as well if it had different lobes that would eccentrically open and close a gap between them and the cyl head.
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joecitizennn
Joined: 12 Sep 2005
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Location: no mans land
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| Posted: Wed Dec 21, 2016 9:08 pm Post subject: |
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| ideola wrote: | | I won't dignify |
lol! dont have a fit. Im sure this is the next big thing in cars.
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87 924s
88 924SE gone
447 hp cgt clone
87 924S gone
84 944 sold
83 944 sold
89 turbo S LSD, ABS etc
86 951 white rocket
85 944 sport everything.
84 944 sold.
87 944 sold |
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nickthompson
Joined: 26 Mar 2013
Posts: 873
Location: Central Georgia
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| Posted: Wed Dec 21, 2016 9:14 pm Post subject: |
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| ideola wrote: | | joecitizennn wrote: | | why is that cool? |
1. DIY
2. Rotary f*&#ing valves
3. DIY
4. It runs
5. Did I mention DIY?
6. I don't recall ever seeing an example of a running rotary valve engine, much less one that is full functional in a real car.
Since you didn't bother reading the article, I won't dignify the mosquito fogger remark with further comment. |
Back in the early 2000s there was a company called Coates that did experiments with rotary valves. The prototype was a Ford 302 it revved to around 10000 RPM! I'm not sure what happened with it. I haven't heard about them in ages. |
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nickthompson
Joined: 26 Mar 2013
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Location: Central Georgia
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Mike9311
Joined: 14 Dec 2004
Posts: 1678
Location: Chicago-ish
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| Posted: Wed Dec 21, 2016 11:37 pm Post subject: |
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| ideola wrote: | | joecitizennn wrote: | | why is that cool? |
1. DIY
2. Rotary f*&#ing valves
3. DIY
4. It runs
5. Did I mention DIY?
6. I don't recall ever seeing an example of a running rotary valve engine, much less one that is full functional in a real car.
Since you didn't bother reading the article, I won't dignify the mosquito fogger remark with further comment. |
I am with Dan here and I will summarize "DIY and Done". No matter the reason he tried something and actually did it. This is crazy awesome. I am imagining what he would do with a second attempt
Nick- I remember Coates. Might have forgotten had you not brought it up
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1980 931 since 1989
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1980 924 NA (R&D lightweight)
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ideola
Joined: 01 Oct 2004
Posts: 15548
Location: Spring Lake MI
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| Posted: Thu Dec 22, 2016 12:50 am Post subject: |
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Sorry, sarcasm doesn't translate well over the Web sometimes.
How's this:
| joecitizennn wrote: | | not the right time of year to fog mosquitos anyway. |
[smartass=on]I suppose that depends where you live [smartass=off]
And the obligatory emoji to signify "don't take me too seriously"
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joecitizennn
Joined: 12 Sep 2005
Posts: 2096
Location: no mans land
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| Posted: Thu Dec 22, 2016 1:13 am Post subject: |
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Millions of "DIY" inventions made the world what it is today and its all awesome. I cant imagine all the crazy attempts at engines that are lost to time or buried in files at the patent office. Yeah this guy is cool. Dan needs to learn to take a ribbing. Its not the right time of year to fog mosquitos anyway.
_________________
87 924s
88 924SE gone
447 hp cgt clone
87 924S gone
84 944 sold
83 944 sold
89 turbo S LSD, ABS etc
86 951 white rocket
85 944 sport everything.
84 944 sold.
87 944 sold
Last edited by joecitizennn on Thu Dec 22, 2016 4:58 am; edited 1 time in total |
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Johann
Joined: 07 Aug 2016
Posts: 240
Location: Netherlands
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| Posted: Thu Dec 22, 2016 1:32 am Post subject: |
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Thanks for sharing Dan, I have learnt something new today 
Awesome that he got it working  I think he still has some timing issues to sort out on his setup but it is a very interesting take on valves.
The Ford motor sounds great though. I seems like they managed to get it working quite well.
Two stroke motors don't have valves either, so this should be a viable solution. Which makes me wonder why this has not taken off yet. The only reason I can come up with is that the complexity outweighs the benefit?
Very interesting video clips on youtube
https://www.youtube.com/watch?v=P81z-jAi16k
https://www.youtube.com/watch?v=ZEhVa00CWh4
From these videos you can see that the DIY project took a different approach. the Coates system is much simpler. |
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Carrera RSR
Joined: 08 Jan 2010
Posts: 2309
Location: Somerset, UK
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| Posted: Thu Dec 22, 2016 2:15 am Post subject: |
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Or go the Koeniggsegg way of camless valves. Seek out the video on youtube.
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1980 931 - forged pistons, Piper cam, K27/26 3257 6.10 hybrid turbo, 951 FMIC, custom intake, Mittelmotor dizzy & cam pulley, H&S exhaust, GAZ Gold, Fuch'ed, Quaife
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