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.

http://www.boostedmiata.com/projects...nlet-shape.jpg



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.

http://www.boostedmiata.com/projects...t-velocity.jpg


flow trajectories
http://www.boostedmiata.com/projects...nwardinlet.jpg

http://www.boostedmiata.com/projects...trajectory.jpg

So wheres the Rapid Prototype to test on a cylinder head for flow? :D

i scanned my face. please check my flow.

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!

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.)

sorry, alls i got for now is a few rotary wing helmets. might interest samnavy but that's prolly it.

needs more IM pictures and idears.

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.

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.

I got one of those here :)

I say pictures or ban!
Unless it is proprietary of course. I can appreciate that.

:)

I too wanna see what an ABSURDFLOW!!@&$ intake manifold looks like.. Probably pretty crazy :D

This is some interesting stuff!

Huh? This is BEGI's thread. BEGI :ne: Absurdflow

Tim @ BEGI :ne: 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 :)

Dual monitor CAD workstations FTW!
Some of our CAD/graphics guys are using single 30" monitors. They are simply awesome.

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 :)

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

No, these are some screwed up eyelids:

That design flowed the worst of every design brainiac tested.