Ford NASCAR Expermintal Manifold

[1967 XR7 GT]

Anyone familiar with these manifolds and anymore pictures :

[jayb]

There's pictures of a similar manifold, and dyno results, on pages 9 and 11 of the thread below.  The manifold shown in those pictures had a removable top, though, but I imagine the results would be similar.  Those manifolds were designed to fit under the hood of the race car per NASCAR requirements of the day.  They may be optimized for that application, but there are certainly better manifolds available.

http://fepower.net/simplemachinesforum/index.php?topic=4760.0

[Katz427]

I'm sure Randy has some information on these manifolds. I remember seeing a design like this and was told Smokey Yunick designed it when Bunkie Knudsen brought him back in. Not sure if this is one or not.

[gt350hr]

 One thing to remember about "experiments" in general is that not ALL of them work. This is a hi riser intake and in this case it's rarity is because it didn't work. If it had there would be MANY more of them out there as every Nascar racer would have been wanting one. The plenum area was too large and there were fuel distribution issues that Ford engineers weren't able to resolve"in the day". "Modern" thinking could ( with enough welding) be able to resolve that but I doubt it would ever match a modern single plane "spider" intake. In late '64 the Medium riser was being developed for the '65 season and little else was done for the high riser.

[Henrysnephew]

John V has had one of those manifolds in his "secret stash" for many years, though he may have moved it on recently as he's been brooming a lot of stuff.  Randy M

[TomP]

Yeah, a high riser so that is before Smokey was working on Nascar FE's. That would have been obsolete after 1965.

[Dumpling]

I believe the manifold pictured above has a removable top.

[jayb]

YOU are correct, sir!  I didn't notice that at first.  Quite a bit different than the tops on your intake...