I’m in the process of gathering up carbs and intakes for an upcoming Ford Y-Block dual quad intake test.  The dual quad intakes on hand thus far for testing are the Edelbrock 255 and 257, 1956 Ford, 1957 Ford, Edmunds, and Fenton.  It would be a plus to see the Weiand and Offenhauser dual quad intakes also represented during this test.  Plans are to test some of the intakes with a variety of carbs including the new Demon Street Fighter carbs so there should be lots of information available once the test is concluded.

If anyone has a dual quad intake they would like to see tested during this dyno session, just get back with me and we can determine if this is something different or simply a duplicate of one that’s already on hand.  I could also use another 1956 FoMoCo intake as the one I have here has been heavily modified and would not be a good comparison to the stock ’57 model I have.  My contact information is at www.eatonbalancing.com .

Lorena, Texas (South of Waco)

Can any sort of test be considered for the different shapes of dual quad air cleaner assemblys at the same time?

Or are those such a small part of the equation that its not worth doing?

Oldmics

That’s a Yes for potentially testing some of the different air cleaners.  In a best case scenario, all air cleaners would need to be tested on a single manifold simply to reduce testing variables.  But if the air cleaners are for different carburetor center to center spacings, then examining the percent change in power outputs when comparing air cleaner versus no air cleaner would help to evaluate air cleaner performance from one intake to another.  I’m sure the type of carburetor is also a player in the air cleaner design as the Teapots have been quite sensitive to air cleaners that are too small or restrictive around the choke area.   I suspect that was just one of the engineering considerations as to why the ’57 dual quad air cleaners were the large round units versus the oval shaped air cleaners that were used in 1956.

I did dyno test a customer’s dual quad equipped Y that repeatedly made more power using a home-made air cleaner versus running without an air cleaner.  While this particular dual quad set up was using Edelbrock carbs, it was determined that the power improvement was not as much related to the air/fuel mixtures but were instead to the redirection of air flow into the carbs.

Here are carb center to center spacings on some of the intakes currently on hand.

Edelbrock FM255             – 8 ¾”

Edelbrock 257                  – 7 1/8”

Edmunds DM-427           – 8 9/16”

1956 Ford EDB-9425-C – 7 5/16”

1957 Ford ECG-9424-D – 7 5/16”

Lorena, Texas (South of Waco)

One thing that really impresses me about the y block is the vintage speed aspect, I mean what could be more impressive than a multiple carb setup.

Whilst I'm too far away to loan you anything, I see that my 257 is allready represented, what are you looking for in terms of components or assistance in conducting this test. 

Your work on testing different engine components for y blocks is really impressive and much appreaciated.  

thanks

Warren

Grizzly (Aussie Mainline)

Still need a Weiand and Offenhauser dual quad intake for the upcoming dual quad dyno test.  If you know of one hanging loose that I can borrow, get hold of me and I’ll arrange for shipping.  Contact info is at www.eatonbalancing.com .

Lorena, Texas (South of Waco)