Re: why the hatred for the eddy 750 carb
[Re: gdonovan]
#1577889
02/16/14 07:23 PM
02/16/14 07:23 PM
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Joined: Jan 2003
Posts: 75,098 A Banana Republic near you.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,098
A Banana Republic near you.
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The problem is there are more people that think they are sealed units than don't.
Then they are very much in the wrong hobby and are in the vast minority, perhaps its just were you live.
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He had ZERO intention of using that carb , it was just a test to see where it was out of the box.
Wait- Did you not state "he knew his way around a carburetor" and now you are stating something else? huh.
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Did you skip over the part where he swapped on the CARTER 750 , which you state is the SAME CARB, and the engine didn't run like a piece of crap ?
You have reading comprehension issues my friend, I stated they were virtually the same castings. Jetting, metering rods and spring rates make a huge difference.
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But again ZERO INTENTION of running that carb either. A strip kit is just jets, rods and springs, it does nothing if the carb itself, with incorrect size internal passages, is the problem.
And you know this how? You picked a poor example "as proof" and display a bit of ignorance about how the AFB's are constructed. I have a problem taking your word on the subject as to the shortcoming of this particular carburetors design. On the other hand I own several Edelbrock and Carter AFB's and they all work great and have rebuilt and tuned several hundred over the decades for a living (including Holleys, TQ's and AVS not to mention non-mopar stuff like quadrajets and even the horrible VV carb from Ford!) for other people without issue.
A single example in which the user freely admits making no changes to the unit is not a sweeping indictment on Edelbrock carbs.
I find it amusing that people will spend vast amounts of time on Holley carbs "drilling this circuit" or "swapping out this air bleed" or "trying this modification" but won't spend some time learning how AFB's work which are the simplest of devices.
But that's ok, more for me ;-)
Oh sorry , you are the king of carb tuning , everyone else on the planet is an IDIOT compared to you .....
I'm out , you're
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Re: why the hatred for the eddy 750 carb
[Re: gdonovan]
#1577890
02/16/14 07:25 PM
02/16/14 07:25 PM
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Joined: Jan 2003
Posts: 12,301 Benton, IL.
DaveRS23
Special needs idiot
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Special needs idiot
Joined: Jan 2003
Posts: 12,301
Benton, IL.
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But Holley and their partners are making more and more carbs with dual patterns. Including the new Speed Demon.
Ahem.
You are aware that both the Carter and Edelbrocks AFB's also have a dual bolt pattern? And have done so for decades?
The new "TQ" from Demon is not a spreadbore carb, its designed for squarebore intakes.
Dual pattern and spreadbore/squarebore are two different things.
Spreadbore carbs never caught on in the market even though they are an excellent idea with small primaries and much larger secondaries. I doubt anyone would tool up to make a new design. You can sell just about anyone a squarebore carb but spreadbore the market is limited and there is plenty of Quadrajets out there.
Still, spreadbores are non existent in CarterBrocks. They are simpler with less choices.
But you're right that they bolt onto both styles of intakes, there is no dispute there.
I am not sure that I would agree that the new Street Demon is not a spreadbore or that it was designed for square bore intakes. Or that spreadbores never caught on. Demon claims it was designed for both, hence the GoogleValve or whatever they are calling it. There is certainly a large difference in the primary and secondary bores.
Tell ya what; if you don't want to call it a spreadbore, why don't we call it a Google bore? And we'll note that it was designed by a former Carter guy.
Any chance that will make you happy?
Master, again and still
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Re: why the hatred for the eddy 750 carb
[Re: DaveRS23]
#1577892
02/16/14 07:52 PM
02/16/14 07:52 PM
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Joined: Jun 2008
Posts: 10,847 Oakdale CT
gdonovan
I Live Here
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I Live Here
Joined: Jun 2008
Posts: 10,847
Oakdale CT
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Still, spreadbores are non existent in CarterBrocks. They are simpler with less choices.
Why on earth would they make a product there is virtually no demand for? I mean if thats a plus for Holley then by all means take it.
How many spreadbore carbs does Holley sell every year? 1 in 100? 1 in 1000? I'm betting closer to 1 in 1000 than 1 in 100 considering how many regular flange carburetors they have for sale. I might have handled one or two spreadbores Holleys in my life and both were on RV's.
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I am not sure that I would agree that the new Street Demon is not a spreadbore or that it was designed for square bore intakes
It's clear it isn't a spreadbore carb like the TQ or Quadrajet. They tried to make it like them (very small primary & very large secondary) but were limited on the secondary side due to the width of the squarebore opening, that's why it has more of a blade to maximize the cfm on the secondary side.
Will it fit on a spreadbore intake like the M1 with a large hole?
Sure, so would any AFB or Holley. The secondary blade on the street demon is no wider than a common squarebore intake opening though unlike a TQ or Quadrajet. I can bust out some gaskets for a comparison if you like.
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Any chance that will make you happy?
People trying something new always makes me happy! Innovation is a wonderful thing and its nice to have more options not less in the marketplace.
I give Holley a big thumbs up for bringing it to market.
Now make a 900 cfm model =)
P.S. I have no particular animus against Holley, I like some of their products very much (like I stated already, have three of their carbs on the shelf) and there is features they have which are nice to have (always liked the sight glass for fuel level, external adjustable needle and seat which is also removable for cleaning) but other features are less desirable to me such as puking fuel everywhere during jet changes, popping power valves, gaskets below the fuel line and the air/fuel ratios tending to be on the fat side all the time.
Since in my experience (mirrored in Dwayne's dyno results) there is no real hp difference between a properly tuned Holley and a properly tuned Carter of the same size I prefer the Carter since it has better transitioning between circuits, the fuel is contained in the bowls (no gaskets to leak) and no power valve to blow out.
If I were to install a Holley of the same CFM as the AFB currently on there and picked up an incredible 25 hp (2.5 tenths) I'd leave that sucker on there.
Fair enough? Trying to be diplomatic here, but some of you are asking me to disregard 30 years of carb work under my belt, Dwayne's dyno results and the class racers who have also chimed in. Not going to do it.
"I think its got a hemi"
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Re: why the hatred for the eddy 750 carb
[Re: Mr.Yuck]
#1577899
02/17/14 12:17 AM
02/17/14 12:17 AM
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Joined: Feb 2005
Posts: 222 Onalaska, Wi
sixtyninefuchs
enthusiast
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enthusiast
Joined: Feb 2005
Posts: 222
Onalaska, Wi
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"480 calculated flywheel hp isn't too shabby considering he is grossly undersized on carburetor CFM, I bet it has wicked throttle response."
You hit the nail on the head. He'd make much more power with a better carb. A 750DP or even better HP would give him much better performace. Even a thunder 800 would.. I'm glad somebody brought up Thermoquads. I love them, however finding a good one seems hard these days. FWIW a big 4bbl would probably run better on my car, but I've always wanted a 6-pack, I can't afford a hemi
How about I go through the misery of rebuilding my 4781 AGAIN (and hope it doesn't leak gasoline all over my engine) I hate carbs that leak fuel....float bowls, 50cc accelerator pumps, blowing fuel out the vent tube from the smallest particle in the needle and seat, etc.
And what about the wonderful world of power valves (that can't stand up to todays fuels....although an alcohol power valve would probably work)
No thanks, I like my dirt eating edelbrock (14 years without ANY leaks, failed power valves, or needle and seat issues)
Oh, I forgot to say I have a 440 six pack as well (since 1990) and I love how it performs, just hate the maintanence.
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Re: why the hatred for the eddy 750 carb
[Re: Supercuda]
#1577901
02/17/14 01:50 AM
02/17/14 01:50 AM
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Joined: Aug 2006
Posts: 84 Ontario, CANADA
hemi pwr
member
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member
Joined: Aug 2006
Posts: 84
Ontario, CANADA
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I have 2 600s on my and work great for me
1970 440-6 Cuda
71 duster
1999 Dodge ram diesel dually
1958 plymouth hardtop
1975 Fury 2 door
1970 AAR cuda clone
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