Baxter61
Well-Known Member
Anyone ever actually flow test a 1406 to see how much air is moving through it?
Anyone flow bench an Edelbrock 1406?
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j par
Well-hung Member
600 CFM..?
What ya putting it on?.
What ya putting it on?.
I thought I’d see a reply with results from someone.
I heard..... these are dry air / no fuel flow tested and rated. Anyone care to expand on this?
I heard..... these are dry air / no fuel flow tested and rated. Anyone care to expand on this?
yellow rose
Overnight Sensation
It all depends on the pressure drop you test with.
I can make it flow 300 or I can make it flow 850.
I can make it flow 300 or I can make it flow 850.
MarPar
Young Troubadour
The industry does it at a 28” drop?
That’ll work.
I do remember that Carter (and Edelbrock I assume) measured those carburetors differently than what Holley did.
Right, dry vs set flow?
yellow rose
Overnight Sensation
That’s for cylinder heads. IIRC, it’s 10.4 inches for a 4V and...dang...I can’t remember what the 2V tests at. I used to know. Getting old sucks. I guess I can look it up.
EDIT: 4V carbs are tested at 20.4 inches of water...and a 2V is tested at 40.8 inches of water!!!!!!!!!
My memory sucks. But that’s the test pressures for carbs. I never really cared about what the car actually flowed. I care about the venturi diameter, the throttle blade diameter and how each booster flowed and getting all that stuff equal.
I'm not sure how they did it. I thought dry VS wet, but I've never been able to confirm that distinction.
67Dart273
Well-Known Member
Other way around. Holley flowed dry
I’ve seen Holley videos the other way around. Perhaps I’m mistaken?
I thought I remembered the numbers at 1.5 & 3 or something those numbers have to do with carbs.
Im with you on throttle blade, Venturi shape, length, though car carbs are generally all the same unlike a B-24 liberator’s carbs... LMAO ...
To that end, there also read/heard (FWIW - LMAO) That this is the method Carter/Edelbrock carries on with. IDK! You really have me on this one.
I would like to know the formula for the sizing. Then know what they actually flow.
Our passed on member (IIRC) 69 cuda 440 from Ct. listed a bunch of information on the OE Carter carbs, though not the WBC 4bbl. He listed a bunch of the other three. Hey do t know where he got the information from. How accurate it truly is or when it was obtained and how. But interestingly enough, it was a good listing.
A good example of it was the various cfm reporting of what appears to be the same AFB or AVS. More so the early AFB carbs. The TQ’s weren’t to much of a surprise when he listed them. Hey honestly never seen myself 800 & 850 actual cfm from them. It work they do! Real screamers. One of my fav‘s below.
Click this —> Carter Thermoquads ~ 'More General Information'
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yellow rose
Overnight Sensation
FWIW...the 1.5 and 3.0 are measurements in inches of mercury. I just gave the converted inches of water numbers because that’s what we all use, and damn if I can remember why they flow test carbs at inches of mercury.
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