I'm in the middle of fabricating a wet flow bench, so this...
http://www.darinmorgan.com/images/we...ath%20CRDM.jpg
can be done.

Anybody have any experience with a wet flow bench?

 

Here's what I have so far...

It's for a 60* V6 GM setup and I wanted to make sure it could support the weight of a manifold set. It has the holes counterbored for the alignment dowels...



1" thick aluminum plate and the 1/2" Lexan is counterbored to accept the acrylic tubes (that happen to match a 3400's bore exactly)...





It also has o rings around the bore to eliminate the need for a gasket, and here's wht it will kinda look like.



And here I'm measuring for threaded rod. The heads will be held on by flange nuts.



All I have left is to cut the threaded rod and tap the blind holes in the aluminum. Then the .75" counderbores in the aluminum plate will accept a steel tube to surround the threaded rod for more support - they will be pressed into the aluminum.

Then some solvent glue to hold the Lexan to the Acrylic, a bead of silicone around the tubes before inserting them in the aluminum, and it should be sealed nice and tight.

 

I would have to say that it is an awesome project! Keep us up to date on what you are doing and how you are doing it!

 

Thanks

Now I cut the tubes close to length, need to face them off in the mill to be precise. As you can see in the pics the top 1/2" Lexan isn't seated on the bores.

After that all that's left is to tap the holes for the threaded rod, and cut the rod to length...

 

Now what are you going to use to create ~28"HG of vacuum?
That's why I never made one, didn't have the electrical power source, or vacuum source to power the gizmo...

 

It would probably be economical to power it witha gas powered pump no? I mean how often are you gonna use it?

 

Haha.

You guys need to visit Tractorsport.com or Speetalk.com. This is nothing compred to the stuff you will see posted there.

More than a few guys have put a sub-electrical panel in the garage to run the 4 to 8 shop vac motors

Me? I'm not even using it. With 4 kids, 2 jobs (3 if you count internet sales), I surely don't have time to flow bench test **but** I do own a CNC machine shop and the individual who is doing the testing is hoping we can collaborate the effort to offer CNC ported heads, proven both on the wet bench as well as the dyno.

I built a tubo kit that sent a Chevy Corsica (YES Corsica, V6 FWD) into the 12's, that was just slightly more fun than this

Thanks for looking guys,

-john

PS it takes at least 58" to test exhaust properly...

 

So, had a fedw minutes to work on it today again (using a 20gal back-up compressor )

Got the tubes faced to length, and all the threaded rods cut. The pic shows the threaded rod a little long, but thet's because they are just partially threaded for pic purposes. Next the aluminum will go back on the mill for radii, then final assembly. Thread locker will be put on the threaded rod so they stay put - that combined with them being tightened into the blind hole, they should stay put when removing the head form the fixture. Also have to paing the tubes as they are bare steel and with wet conditions, don't want them to rust - maybe I'll even throw a coat of powdercoat on them with my new rig

Pics...

 

Yeah the metal sits just right a wet area. What coat are you planning to apply then? BTW, everything seems to be perfect. Goodluck

 

Thanks

Actually I won't be doing the testing on it. I am making it for someone who does a lot of porting.

Had a little time to work on it today...