FE Intake Adapter

[Heo]

The Rover intake is to small. Its to short not wide
enough and it have tiny ports. The engine was only
215 cuin to start with.

[jayb]

Jay, any progress updates on the high riser version of the adapter?

Back in January, my existing foundry said I would have the high riser castings in March.  In March, they said that the high riser castings would be delayed until May.  I contacted them again at the beginning of this month, and they said July.  Seeing a pattern?   

So, I took back the high riser patterns from my existing foundry and brought them to a new foundry at the beginning of this month.  They seem much more motivated to make this happen, and I'm hoping that they can resolve any quality issues quickly.  They have promised me two prototype castings by June 15.  If those look good (crossing my fingers), I should be able to get my production castings shortly thereafter.

As I have said here before, getting a good quality casting, on time, has been very difficult with the two foundries I've worked with so far.  This latest foundry appears more professional, and I think they're hungry for work, so maybe they will deliver when they say...

[MeanGene]

Cool- I just sold my two 40 Ford pickup projects, proceeds to help finish the Falcon 

[XR7]

Mean Gene, I have only seen a couple pictures of your Falcon, but I was impressed. If you get time maybe you should start a thread on it in "members projects". A stout HR should make that thing fly. I was going to say "lightweight bundle of tubes", but that doesn't sound right. Is it moly 25.3 chassis or something... or "just" a 7.50 cert? What trans will be going in it?

[JamesonRacing]

Joe Craine just sent me pics of the heroic effort he put into my intake adapter and Edelbrock 2863 Yates/Glidden dominator top.  Eager to get the manifold back and installed and see how well the engine likes the new found air flow!

[Nightmist66]

Oooohhhhh, aaaahhhhh! Can't wait to see that one installed. 

[ToddK]

They are some great airflow numbers, the intake certainly won't be the choke point. Also looking forward to seeing it on the engine, and seeing how it performs.

[jayb]

I was wondering how you were coming along with that, David.  Looks awesome!

[JamesonRacing]

I tried the setup with just rough blending from the adapter to the manifold, and the car probably slowed a bit from the previous setup.  Joe worked his magic on the intake and found an additional 70cfm, so it now surpasses the flow capability of a well-worked Victor dominator intake.  Hope to have it back on and back to Byron in several weeks to see how the engine likes the changes.  This pic is what the plenum looked like prior to Joe's work:

[KMcCullah]

Wow!  Looks a hell of a lot nicer than the hatchet job I'm doing to my 2863. Admirable work Mr Craine! I'm curious what the flow was before porting? Thanks for posting David.

[Joe-JDC]

The intake and spacer had already been worked on before I started.  Those intakes move a lot of air as cast, ~400 cfm on the end ports, and ~430 for the center four ports.  Working the plenum is a major hurdle with getting the air to turn into the port without turbulence, and getting #1 and #8 ports entry cleaned up to flow well.  The port is plenty big, just the dominator divider needs a lot of blending to get the airflow around it and to balance the flow within a few cfm.  That intake has ~.024% variance which is a lot better than initial.  Joe-JDC

[XR7]

Nice pictures, thanks for the post and progress info, keep them coming! I have a few questions, are those flow numbers the manifold only or manifold with the adapter attached? Did you by chance do both?

Also isn't the 4500 Victor capable of close to 500 CFM with mods as well? I'm really curious which would run quicker at the strip, any plans for a back to back comparison or at least under like weather/track conditions?

The big inch SBF guys building 800-900 HP engines seem to like the 2868 intake better than the 2863 or 2865. I know it has a different bolt pattern at the flange and also may be wider for the raised port heads it is meant for, have you ever ported and/or flowed one of those Joe? Are they way too wide without cutting/welding to work with Jay's adapter?

[fekbmax]

Got my adapter today.  Thanks Jay. Looks nice. Should have my heads back from Kuntz by the end of the week next week. Looking forward to getting out in the shop and do some port matching and blending to fit the intakes (funnel web and modified tunnel ram with fabricated plenum) and heads.
Things are slowly starting to fall in place.

[jayb]

The big inch SBF guys building 800-900 HP engines seem to like the 2868 intake better than the 2863 or 2865. I know it has a different bolt pattern at the flange and also may be wider for the raised port heads it is meant for, have you ever ported and/or flowed one of those Joe? Are they way too wide without cutting/welding to work with Jay's adapter?

The 2868 is designed for a 9.5" deck block, and the standard Cleveland is 9.2", so if I had to guess I'd say that it may be too wide to fit the adapter.  You'd have to actually put one on top of the adapter to know for sure, though.  The picture of the 2868 on Summit's web site looks like it does not have the port surfaces machined, so it is probably designed to be machined to fit.  If there's a bunch of extra material there, you might be able to make it work...

[Joe-JDC]

Nice pictures, thanks for the post and progress info, keep them coming! I have a few questions, are those flow numbers the manifold only or manifold with the adapter attached? Did you by chance do both?

Also isn't the 4500 Victor capable of close to 500 CFM with mods as well? I'm really curious which would run quicker at the strip, any plans for a back to back comparison or at least under like weather/track conditions?

The big inch SBF guys building 800-900 HP engines seem to like the 2868 intake better than the 2863 or 2865. I know it has a different bolt pattern at the flange and also may be wider for the raised port heads it is meant for, have you ever ported and/or flowed one of those Joe? Are they way too wide without cutting/welding to work with Jay's adapter?

The adapter after tweaking to match the 2863 is not a bottleneck, it is difficult to flow just the adapter, but to suffice to say that that opening will only pull to about 24" or 25" on the manometer for the 600 tells me that it can flow well over 600 cfm.

A Victor 427 ported to the MR gasket size will flow ~485 cfm if the plenum is prepped properly, and if you wanted to go to one of the CNC port sizes, it will go over 500 cfm if you take it out to the head size.  You will need to make the port taller than the MR port opening, but 540 cfm is not out of the question.  The problem is keeping the port small enough to keep the velocity at its highest for a given port size.  David's intake uses a 1247 gasket sized opening, but he also has 496 cubic inches to feed, so it should work well.

The 2863 style intakes can be ported even larger, but I was trying to keep David's as small as possible to match up to the adapter, yet give me some area to work with if the flow was not what I expected.  The only way to make this work remotely better would be for Jay to use an adapter that has not been CNC'd and mimic my initial work for a CNC program to keep the adapter round/oval at the upper opening, and taper it to whatever head was going to be used.  Somewhat similar to how a sheetmetal intake would be welded together to match the adapter.  Oval/round ports flow better than rectangular ports with same cross sectional area.  Joe-JDC