I don't know if Ted has any plans to install the EMC heads on the Mule. I don't think anyone would pay for aluminum heads and a rediculous amount of port work and put them on a nearly stock short block.

We do have 2 flow benchs and have done many hours testing and porting on these heads. Intake flow through head is 270 +-5 for all ports. With Intake manifold and carburetor 250 +-5 for all ports.

 This should put Ted over the 500 mark, but only time will tell.

Valves are 1.98" intake 1.54" exhaust.

http://ford-y-block.com 

20 miles east of San Diego, 20 miles north of Mexico

John,

How much work was done to the heads for the racer? I assume that you have a flow bench. I'd be really intersted in what gains have been seen and if the ported heads are still good for street use. Maybe even a run on the test mule?

Cheers

Grizzly (Aussie Mainline)

The finished heads for Ted's EMC engine were shipped on Wednesday. We are waiting for a clarification on the rules before sending the intake manifold. There is a great deal of contradiction on what can be done to an intake manifold and what can't be done.

The new rocker stands for the aluminum heads arrived today so a set, along with hardware, are also on the way.

http://ford-y-block.com 

20 miles east of San Diego, 20 miles north of Mexico

Although the Hogans manifold will be on the dyno in the near future, it will likely only be compared to a hand ported Blue Thunder intake.  That’s simply because of the time frame for which the Hogans manifold will be available for testing.  But that same hand ported BT intake is going to be used on the 312 dyno mule in the near future along with the extrude honed BT intake.  This is expected to give enough data to compare the performance of the Hogans fabricated runner intake to the other intake manifolds being tested.   At this point, rough estimates puts the Hogans intake at least 20-25HP up and over the extrude honed BT intake based on the performance of the 314” Y that is currently in the Church Brothers Thunderbird.

Lorena, Texas (South of Waco)

Ted, any chance off getting the Church Bros sheet metal intake for testing?

Glen Henderson



Freedom is not Free

Letohatchee, AL

Besides what Gary is using on his vehicles, he has been generous enough to already send me an assortment of intakes for testing including an extruded iron intake and an extrude honed aluminum Blue Thunder.  This is on top of the extrude honed Blue Thunder intake I also have which was previously ran on the Church Brothers Thunderbird.

 

I’ve already done some preliminary dyno testing with the extrude honed intakes and these actually don’t perform as well as some of the hand ported intakes that are also here.  Gary and I have batted this back and forth and have come to the conclusion that the extrude honed intakes may be too slick on their insides thereby allowing some of the fuel to drop out of suspension before getting into the combustion chamber.  Gary has given me the go ahead to scuff up the insides and see if that helps.  The plan is to run the extrude honed intake again in the near future on a set of heads that will take advantage of the increased flow in the intake and then immediately ‘rough’ up the runners and rerun the manifold again to discern the difference.

Lorena, Texas (South of Waco)

That one is on my 56 Sunliner.

-Gary Burnette-

Ted, John:

Gary Burnette had a B manifold extrude honed a few years ago.  Maybe that one is still around and available for testing and comparing with John's extreme manifold.

John - "The Hoosier Hurricane"

Wow. So then there is probably a lot left with the 573. The Demon 98s are 205cfm each (498ish for 3) and the Stromberg throttle bodies for efi are about 255 cfm each (620ish for 3).

I was checking out the Demons the other day. They use a Y for the examples in the instruction book.

I wonder when the new Edelrock 3-2 manifold will be available. They say spring 2010 in the catalog.


Lawrenceville, GA

Using numbers from some FE testing that was done in the past on a Superflow dyno, I’ll just throw 19% out there as the number for the cfm reduction when using three two barrel carbs.  Based on this, the 465cfm for the total of three Strombergs would net 376cfm when used together on a 3X2 setup.  If anyone has any more definitive information for this, let’s hear it.

Lorena, Texas (South of Waco)