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The tubing for the exhaust system has been ordered.

On another note, my sheet metal guy, Roscoe, seems to be flaking out on me, so I'm thinking up a way to create a die or buck that I can use to create the eliptical curve shape that I will need to finish the intake port entries.
 
I started mocking up a cardboard representation of the intake runner flare, and yikes! There is not enough room in the plenum to use the scale of flare that I wanted to use. I will need to scale back the size of the flare. At the moment, it looks like the flare will amount to about the size of a 5/8" radius. It will still use an elliptical shape. Just much smaller.
 
I've been struggling with how to fabricate the intake port runner entries. I even started bending up some aluminum sheet metal, but I just didn't feel comfortable with how things were progressing. I just never felt that how I was doing it was the right way it needed to be with this particular intake. It didn't feel like the port entries were living up to the rest of the intake.
Yesterday, the idea hit me. I knew if I mulled it over long enough, the definitive idea would finally come around. I'm going to scrap the port entry plates that I've already made and machine the port entries out of billet aluminum. All one piece, no welding involved. It will be along the same lines as the intake runners, but will be all one piece for each runner. The entry will incorporate the entry plate and the entry flare. The flare opening will be extended up, at the bottom edge by about .710", to make the rectangular opening perpendicular to the actual centerline of the intake port. The flares will be equivalent to about a 5/8" radius, and hopefully will be of an elliptical shape. These will be machined from a block of 4 x 6 x 2 6061 aluminum billet, on my manual milling machine, so this will not be completed real quickly. I'm guessing a couple weeks. The present entry plates that I have will be used to transfer the bolt patterns to the new port entries.
After the port entries are finished, it will be time to pick out a color for an anodizing process. What color should they be anodized?
 
Red is my cursed color for engines. Nothing can be red at all... The race car wont even have red for the AN fittings...
 
I was thinking purple, or the same color as the wastegate cover.

Purple sounds good, since you already have a thing or two that color. Can't go wrong with black, but I think you need something to stand out a little bit to accentuate the intake. (as if it won't be noticed...) ;)

I think you should skip the anodization, and just hurry up so you can take it to Mustangs vs the world on the 22nd. Come on, you have 8 days. :p
 
It's all going to be in the plenum anyway. You might be right, James. Don't worry about it.
 
15 days since last post!!! ;)


What's new Donnie, you making dyno pulls with it already and keeping it a secret? :)
 
I've been taking a break from the car, plus my tranny rebuilder is on vacation and will be gone for another week. When he's gone, I fill in for him, so I won't be doing anything on the car until he gets back.
I've decided to machine one of the port entries and then send it out to be digitized and the other 5 pieces machined on a CNC machine.
 
After taking a break from the car, I'm back in the saddle working on the intake port entry plates.
This is the start of the initial prototype. The radius will be added next.

IMGP3077rs.jpg
IMGP3078rs.jpg
 
Progress is going well with the machining of the elliptical flare on the port entry.

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My eyes hurt just thinking about watching that many numbers on the DRO. I'm certainly not that dedicated.

For my day job, I'm working with a machine shop now that grinds their own custom shaped endmills (tapered, radiused etc.) If you get sick of numbers, I can check on a price for you.
 
My eyes hurt just thinking about watching that many numbers on the DRO. I'm certainly not that dedicated.

For my day job, I'm working with a machine shop now that grinds their own custom shaped endmills (tapered, radiused etc.) If you get sick of numbers, I can check on a price for you.
That's the prototype. When it's finished, I plan to have it digitized, and the rest of the entries done on a local CNC machine.
 
Mike. The different sides of the entrance are using different curve shapes. The two long sides are using the same curve, but the top short side is using a very slightly different curve, while the bottom short side is using a completely different curve. All the differing curves had to be blended in the corners.
 
The prototype is finished. Not just a simple radius, but a precise elliptical curve has been produced.
The outer edge radii still to be added.
The cylinder head port is going to get all the help that is possible from this intake manifold. No restrictions here.

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