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Old 11-06-2008, 04:31 PM   #141
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Originally Posted by y8s View Post
put the ridge in!! and radius the transition between the TB area and plenum.
I did both of those and it had little effect in computer land.


this however seems to be a great design....and could easily work without moving headlights out of the way:




The basic shape of the plenum is the same, only with a 45* downward tapering inlet.





This seems to allow the velocity to stay high all the way to #4 and the airflow curls into the runners. If you look at the stock 1.6L manifold, it kinda does the same thing. The time between when #1 and #4 get airflow is much closer than any other design I've simulated.




flow trajectories


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Old 11-06-2008, 04:41 PM   #142
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So wheres the Rapid Prototype to test on a cylinder head for flow?
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Old 11-06-2008, 05:22 PM   #143
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i scanned my face. please check my flow.
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Begi Intake Manifold-virutalmatt.jpg  
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Old 11-06-2008, 05:47 PM   #144
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Man you have some seriously screwed up eyelids.
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Old 11-06-2008, 05:59 PM   #145
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Man you have some seriously screwed up eyelids.
that freaked me out at first too, but it is my eyelashes. the scanner was set to low rez and since i didnt want to go blind from the lasers, i closed my eyes.

hard to do by yourself when you can't see!
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Old 11-06-2008, 06:05 PM   #146
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Makes sense now. Now scan something awesome in hi-res so we can really be wowed. (Not that any 3D scanning isn't amazing enough.)
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Old 11-06-2008, 06:36 PM   #147
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sorry, alls i got for now is a few rotary wing helmets. might interest samnavy but that's prolly it.
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Old 11-06-2008, 07:06 PM   #148
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needs more IM pictures and idears.
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Old 11-06-2008, 07:08 PM   #149
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Quote:
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So wheres the Rapid Prototype to test on a cylinder head for flow?
Word. I think glass-filled ABS, either FDM or SLS formed, is used pretty commonly for test manifolds. Being a mostly dry-flow manifold helps too. ATI in Austin could do it easily, though they are not cheap. I would guess $3-$5K. The size makes it expensive. I do know a guy who has a rapid prototype source in China that is really cheap.

Here is an example:
http://forums.nasioc.com/forums/show....php?t=1600687
The walls look a bit thin for a working prototype for this one. I think it may just be a test fit for an aluminum casting.
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Old 11-06-2008, 11:37 PM   #150
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Quote:
Originally Posted by ZX-Tex View Post
Word. I think glass-filled ABS, either FDM or SLS formed, is used pretty commonly for test manifolds. Being a mostly dry-flow manifold helps too. ATI in Austin could do it easily, though they are not cheap. I would guess $3-$5K. The size makes it expensive. I do know a guy who has a rapid prototype source in China that is really cheap.

Here is an example:
AMS Subaru Intake Manifold: Work in Progress - NASIOC
The walls look a bit thin for a working prototype for this one. I think it may just be a test fit for an aluminum casting.
WOW!! It didn't really occur to me the cost of doing rapid prototype..


I need to get my escort cylinder head reassembled, at least on the intake side to build a ghetto flow bench. I've been wanting to try and build and test something like this for since my 2.3 Turbo days. Just never had half the equipment needed for this until now.
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Old 11-07-2008, 09:43 AM   #151
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Quote:
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So wheres the Rapid Prototype to test on a cylinder head for flow?
I got one of those here
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Old 11-07-2008, 11:19 AM   #152
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I say pictures or ban!
Unless it is proprietary of course. I can appreciate that.
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Old 11-07-2008, 02:01 PM   #153
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I say pictures or ban!
Unless it is proprietary of course. I can appreciate that.


I too wanna see what an [email protected]&$ intake manifold looks like.. Probably pretty crazy
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Old 11-07-2008, 02:59 PM   #154
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This is some interesting stuff!
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Old 11-07-2008, 05:06 PM   #155
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I too wanna see what an [email protected]&$ intake manifold looks like.. Probably pretty crazy
Huh? This is BEGI's thread. BEGI Absurdflow

Tim @ BEGI Turbotim. Unless, of course, BEGI hires me, in which case there'd be two Tim's at BEGI

The only intake mani I've welded is the one on my car, and I wouldn't consider it absurdflow. It gets the job done (I/C piping thru the fender) which is more important IMHO.

BUT...I just got the whole sha-bang cosmos package loaded onto my home computer during lunch! Apparently we had an extra seat here at work We're still running solidworks '07 so I'm going to have to start over with the models cause I can't import scott's '08 files, and I have never used Floworks so I'll have to teach myself that one.

And my vintage '96 15" CRT will need upgrading, I'm used to running dual 19" LCD's at work hehe
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Old 11-07-2008, 05:49 PM   #156
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And my vintage '96 15" CRT will need upgrading, I'm used to running dual 19" LCD's at work hehe
Dual monitor CAD workstations FTW!
Some of our CAD/graphics guys are using single 30" monitors. They are simply awesome.
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Old 11-08-2008, 12:11 AM   #157
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Originally Posted by TurboTim View Post
Huh? This is BEGI's thread. BEGI Absurdflow

Tim @ BEGI Turbotim. Unless, of course, BEGI hires me, in which case there'd be two Tim's at BEGI

The only intake mani I've welded is the one on my car, and I wouldn't consider it absurdflow. It gets the job done (I/C piping thru the fender) which is more important IMHO.
Oh I know you're not Tim @ BEGI.

You mentioned your Rapid Prototype on the cylinder head and I think ZX-Tex said he wanted to see.. Was curious what kind of psychotic crazy high flowing contraption you might've come up with for intake side
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Old 11-08-2008, 12:22 AM   #158
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Ill post up some pics here shortly but we are working on some 1.6L short runner manifolds and will be done with the first batch shortly. Orders can be placed via Welcome to Flipside

Gary

P.S. didn't mean to steal thread, started one https://www.miataturbo.net/forum/t27887/#post328318

Last edited by G2B; 11-08-2008 at 12:36 AM.
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Old 11-08-2008, 12:57 AM   #159
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Quote:
Originally Posted by cjernigan View Post
Man you have some seriously screwed up eyelids.
No, these are some screwed up eyelids:

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Old 11-08-2008, 01:42 AM   #160
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Quote:
Originally Posted by G2B View Post
Ill post up some pics here shortly but we are working on some 1.6L short runner manifolds and will be done with the first batch shortly. Orders can be placed via Welcome to Flipside

Gary

P.S. didn't mean to steal thread, started one https://www.miataturbo.net/forum/t27887/#post328318

That design flowed the worst of every design brainiac tested.

Last edited by TravisR; 11-08-2008 at 11:28 AM. Reason: Maybe that was harsh...
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