Cfm Ratings

[Deleted User] · July 2007

i have calculated the theoretical max cfm of my engine to be around 390cfm - 318ci 6cyl with a roughly estimated .8 VE ratio (cleaned ports and i plan to use a larger cam and clifford headers). the question is what carb combo is best going to suit this range? - Stuart

[Deleted User] · July 2007

As luck would have it. Holley makes a 390 cfm 4 barrel just for sixes. That, and a good Clifford 4 barrel manifold would make a good combination.

I'm running a 500 Edelbrock, but it would probably run better with a 390 Holley. I seriously doubt the secondary air door fully opens on my Performer carb.

I don't know the cfm rating of the Twin-H WA1 carbs, but I'd bet a nickel they are close to your number when paired up.

Mark

[Deleted User] · July 2007

id prefer duals just because i want that look.... haha. i have a healthy wgd laying around and a rebuilder, so i was thinking about using an edmunds 2x2 and jetting the wgd's down

[Deleted User] · July 2007

I have had some fantastic results with one of the old AUtolite 4100 shoebox carburetors from a 1965 Mustang 289 V8. Its similar to the holley as many of the parts interchange but its got the annular discharge venturi's which are much better for all out performance.

The one I am running has the 1.08" throttle blades which works out to 480 cfm. It has the best throttle response of any carburetor I have tried on my Hornet engine. Besides to change jets you don't have to drain the float chambers or worry about changing the gaskets all the time.

I'm running the lightest Holley vacuum secondary spring in mine with .054 primary jets and .072 secondary jets and a 5.5" power valve. This combination has worked the best for performance so far.

Its mounted sideways on a Clifford 4bbl intake with a 1" wooden carburetor spacer. My only problem is that there is no manifold ported vacuum port in the base of this carburetor.

thanks,

PaceRacer50

[Deleted User] · July 2007

here's some super rare crazy ideas to chew on. Saaty Meteor fuel injectors. available in 100 and 200cfm ratings. imagine popping the bonnet to four of these in a row. even 2 would get heads scratching. i cannot find anything about them other than they are made of an element closely related to unobtanium.

[Deleted User] · July 2007

half baked wrote:

here's some super rare crazy ideas to chew on. Saaty Meteor fuel injectors. i cannot find anything about them other than they are made of an element closely related to unobtanium.

I like the idea, never heard of them, items made of unobtanium can be kinda toxic to your economy.

I once liked the prospect of Fish carburetors.

Mark

[Deleted User] · July 2007

i figure im in balls deep so i may as well keep swimming, im young and single so im gonna use my spare $ on something fun . i dont mind being broke for the car.

the meteors are a primitive predator from what i have gathered and ran for around ten times the price of a stromberg way back when.

i havent heard anything about whether they are a ***** to tune or anything so thats a plus. not that ive found much. could be an interesting setup. it certainly fits with my fetish for obscure speed items

duncan · July 2007

Hi Here's some no.s for a single barrel Holly down draft.all six cyl.

Rambler 1959-60

Edsel 1959-60

Falcon 1960

Ford Thunderbird 53-55 56-60

The 2 holes that bolt the carb to intake have to be slotted to fit intake.

Looks pretty neat, Most hudsons you see have Carter.

The cross throttle rods are not perfectly straightbut they work ok.

Hudsonly duncan

[Deleted User] · July 2007

duncan wrote:

Hi Here's some no.s for a single barrel Holly down draft.all six cyl.

Rambler 1959-60

Edsel 1959-60

Falcon 1960

Ford Thunderbird 53-55 56-60

The 2 holes that bolt the carb to intake have to be slotted to fit intake.

Looks pretty neat, Most hudsons you see have Carter.

The cross throttle rods are not perfectly straightbut they work ok.

Hudsonly duncan

One of those fabbed Triple-H manifolds, with three Holley 1 bbl glass bowl carbs - would be an eye popper for sure.

I do not know the cfm of the little Holleys, but I'd imagine them not to be as signifcant at the WA-1. I have a bucket full of the Holleys, and they are tiny compared to the WA-1. Only two glass bowl'ed carbs out of the lot.

They'd make a nice pair on a Jet Twin-H.

Mark

[Deleted User] · July 2007

the meteors run at a massive 2 psi, so with a bypass regulator i'd almost imagine that they are relatively economical. im liking these more and more i find out about them. if they are set to meter a usable fuel/ air ratio at 100 or 200 cfm, i will be spot on sucking in roughly 400cfm.

its an excuse to run another guage (fuel pressure) in the dash i guess... guages are fun.

bank loan extension is going through tomorrow... haha

[Deleted User] · July 2007

i have found a little more about meteors.

the 100's are closer to 150 cfm. i even found a video of an engine running some, and it seems they are pretty sharp. nice idle and excellent throttle response. im sold.

the basic principle is much like a predator, they have a sprung diaphragm keeping constant cfm and the throttle controls a needle in a jet for fuel metering. sounds simple enough....

Unknown · July 2007

but where will one find 3 to 4 of these babies?... would look kewl i think myself also .

mike

Unknown · July 2007

This '31 five-window, built for Mike "Ziggy" Zenor by Andy and Jerry Didio, grabbed our attention as soon as we got downstairs, and received an award from Chip Foose. The Pontiac side marker light on the '32 grille shell is a clue to the Poncho theme all over the coupe. Andy built the roof insert from a backward '59 Pontiac hood, and added a '59 Star Chief dash and steering wheel to the interior. The '59 Pontiac 389 is fed by '58 Saaty Meteor 100 fuel injectors. The chrome rims wear '56 Olds caps, just to mix things up.

http://www.rodandcustommagazine.com/eventcoverage/0708rc_2007_detroit_autorama/

http://search.yahoo.com/search;_ylt=A0oGklMamKxGxcgAo2ZXNyoA?p=Saaty+Meteor+fuel+injector&y=Search&fr=yfp-t-501

http://iowahawk.typepad.com/iowahawk/2005/week35/

Unknown · July 2007

here's one for sale on ebay:

http://cgi.ebay.com/ebaymotors/Meteor-Fuel-Injector-100-Saaty-Providence-RI_W0QQitemZ130136999784QQcmdZViewItem

[Deleted User] · July 2007

ive had my eye on that one for a few days and it had been doing a god job of flying under the radar so i tried to keep it that way.....

[Deleted User] · July 2007

i managed to pick that one up, if i knew how to use e bay properly i would of gotten a good deal. now i just have to find a couple more...no real hurry yet.im off to bed. its 3.20am here and i have to be up for work in 3 hours....

[Deleted User] · August 2007

i just read the bid history on the meteor i bought. i did have some competition after all. now i dont feel so bad. next i just have to find 2 more of those bad boys and fabricate myself an intake to put them all on. (aside from getting the engine going under them together - minor detail there...) where did all the pictures of "triple h" manifolds go? i cant find them.

Unknown · November 2008

I just aquired a saaty carb...! Anybody got information on any stats on how well they run? MPG?

Ol racer · November 2008

Generally speaking, after a lot of experimenting with multiple carbs on different engines I found that an engine will actually be more responsive (Torquier) with carburation a little on the 'smaller' side. Conversely, for obtaining total HP a larger carb or multiples are better. Of course cams, intake design, & gearing all enter into the equasion.

Additionally, I feel Twin H Intakes are far superior in flow than Edmunds because of the Twin H nearly perfect 'equal runner' distribution. The Edmunds being aluminum is lighter & shinier for a St Rod but very restrictive design for competition.

Ideally adapting dual 2bbls on a Twin H would be the way to go.....Just my opinion...

Spencer Yarrow · November 2008

isnt it great to see someone thinking outside the square but i guess us aussies are like that

[Deleted User] · November 2008

far enough out of the square to keep me wondering whether im in a bit too deep, haha. i have had very little progress of late so i will be wondering for some time yet. ive been toying with the idea of jamming the meteor on my ford 144 just to see if it makes a difference, its running a puny 1 barrel

biggest trouble with the edmunds i can see is the sharp turn at the carb pads, a little work with a grinder will improve upon this, actually i can see some easy gains on them. with the "open plenum" style rather than runners im guessing you'll get mixture going all over the shop. my intakes are all the way over one side of town and my block the other with me somewhere in the middle. all this is guesswork based on a hazy memory...

Cfm Ratings

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