But to keep interest level high, here are a couple of pics of just a few of the dual quad setups being readied for this test.  Thanks to all thus far for carbs, intakes, and parts for this test.  It would not happen without help from all.

Lorena, Texas (South of Waco)

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)

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)

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)

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