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-   -   Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg?? (https://67-72chevytrucks.com/vboard/showthread.php?t=429101)

blazerboy_4life 11-03-2010 02:53 AM

Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
Just went down to Denver yesterday and on the way home stopped to see my grandfather. He was cleaning out the garage when i pulled up and gave me a few things like and engine stand and a Fish Carburetor. He said he got 22mpg out of a 410? olds motor. Anybody ever heard of these carbs and their reliability/power/ridiculous mpg ratings? All the articles Ive dug up keep talking about 100+ mpg off most any V8.

Shane 11-03-2010 08:40 AM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
google ...

cam.man67 11-03-2010 10:32 AM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
just did some research on 'em. The 100+ mpg claim is totally bogus, nor did Fish ever claim that. He did claim that is was a more efficient design than any other carb out there, and that was true.

From what I see, a Fish carb is an incredibly simple design (only 17 parts, 1 gasket, and 3 moving parts). Works pretty well for racing, or so I see.

I'd love to try one out on my truck, see if I can hit 18-20 mpg, but, alas, a "new" one costs $850. :ito:

63chevyll 11-03-2010 10:42 AM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
sounds pretty cool

cdowns 11-03-2010 11:14 AM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
that's why they call it fishin and not catchin

blazerboy_4life 11-04-2010 12:28 AM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
Quote:

Originally Posted by Shane (Post 4275017)

I was hoping for more personal experience. Google was the first place I went THEN I came you guys.

Shane 11-04-2010 08:30 AM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
ok.

71meangreenc10 11-04-2010 08:39 AM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
Yeah,
Cant get past that $850 price tag......I have never heard of it either, I go through the summit and Jegs catalogs, even LMC never saw it. Ill look and see if JC whitney promotes it.....

Also supprised that during the $4-5 bucks a gallon spike a couple years ago didnt get this air time,,unless it was just a local product.

Smitty

blazerboy_4life 02-07-2011 12:53 PM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
Right now im trying to find an intake I can bolt it up to. It doesnt match my 2bbl.

MARKDTN 02-07-2011 01:02 PM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
Quote:

Originally Posted by 71meangreenc10 (Post 4276804)
Yeah,
Cant get past that $850 price tag......I have never heard of it either, I go through the summit and Jegs catalogs, even LMC never saw it. Ill look and see if JC whitney promotes it.....

Also supprised that during the $4-5 bucks a gallon spike a couple years ago didnt get this air time,,unless it was just a local product.

Smitty

It's not a new product, been around a long long time.

blazerboy_4life 02-07-2011 01:06 PM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
Quote:

Originally Posted by MARKDTN (Post 4468999)
It's not a new product, been around a long long time.

Yeah this one that my grandfather gave me he used to run back in the 70's

mrein3 02-07-2011 01:55 PM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
Quote:

Originally Posted by 71meangreenc10 (Post 4276804)
Yeah,
Cant get past that $850 price tag......I have never heard of it either, I go through the summit and Jegs catalogs, even LMC never saw it. Ill look and see if JC whitney promotes it.....

Also supprised that during the $4-5 bucks a gallon spike a couple years ago didnt get this air time,,unless it was just a local product.

Smitty

I'm surprised we haven't heard more snake oil type things now that gas is headed back up. Before I read this post I'm quoting I was going to mention that we always hear this stuff while gas goes up in price.

Somebody should keep track. First its the 100+ mpg carb that big oil and big car companies bought the rights to.
Then we'll hear about the magnets on the gas line.
Then we'll hear about injecting hydrogen into the carb.
Then we'll hear about the air cleaner that swirls the air and improves mileage.
Then we'll hear about the split fire spark plugs that studies have shown improve mileage.

Folks its a broken record that gets spinning when gas goes up. With today's fleet fuel mileage requirements do you really think a car company is going to keep something that gets 100+ mpg on the shelf? When Ford says use 5w-20 because it gives them an across the board 0.1% increase in fuel mileage do you think they are sitting on a 100mpg carb? When Chevrolet shuts down extra cylinders at cruise on the highway do you think they are sitting on a 100 mpg carb?

What did P. T. Barnum say? "There is a sucker born every minute"

And those suckers buy lots of the above mentioned products. [I'm not saying the fish carb isn't a fine working carb, I'm just saying that it won't get 100+ mpg in a 5000 pound truck]

leddzepp 02-07-2011 02:10 PM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
Wonder if Barney Miller used one?

Tkmadone 02-07-2011 02:21 PM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
I had one on my MGB for a while. I went from 21mpg to about 23. It was cool because it was so simple and I would have kept it but it didn't have a choke so it was annoying when cold. I think I still have it somewhere...

DANTIP 02-07-2011 02:24 PM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
A friend of mine is an engineer at Ford and specializes in port fuel-injection system design. We have had many conversations regarding carburetors, fuel-injection, fuel mix ratios, etc. My wife doesn't hang around long when we talk. Basically, gasoline engines operate properly when the optimum mixture of fuel and air is maintained. These guys get into enormous detail but it comes down to mixing the best/optimum amount of fuel with a given (or measured) amount of air. He admitted the best performing carburetor for road-driven vehicles is a properly set-up Quadrajet. Their testing shows a Q-Jet can approach port fuel-injection performance and economy.

Claims of dramatically better fuel economy with different gadgets aren't real.

My friend did convince me to buy a digital read-out system for carburetor set-up. These devices rely on an O2 sensor (you have to weld a bung into the exhaust pipe) to give you a mixture readout. With this and a setup procedure for the Q-jet, you can feel good about your carb performance. Indiana does not require any testing of tailpipe emissions, but I'll bet the mixture device could help you nail a lean setup that would aid in passing a sniff test.

blazerboy_4life 02-07-2011 02:26 PM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
Quote:

Originally Posted by mrein3 (Post 4469089)
I'm surprised we haven't heard more snake oil type things now that gas is headed back up. Before I read this post I'm quoting I was going to mention that we always hear this stuff while gas goes up in price.

Somebody should keep track. First its the 100+ mpg carb that big oil and big car companies bought the rights to.
Then we'll hear about the magnets on the gas line.
Then we'll hear about injecting hydrogen into the carb.
Then we'll hear about the air cleaner that swirls the air and improves mileage.
Then we'll hear about the split fire spark plugs that studies have shown improve mileage.

Folks its a broken record that gets spinning when gas goes up. With today's fleet fuel mileage requirements do you really think a car company is going to keep something that gets 100+ mpg on the shelf? When Ford says use 5w-20 because it gives them an across the board 0.1% increase in fuel mileage do you think they are sitting on a 100mpg carb? When Chevrolet shuts down extra cylinders at cruise on the highway do you think they are sitting on a 100 mpg carb?

What did P. T. Barnum say? "There is a sucker born every minute"

And those suckers buy lots of the above mentioned products. [I'm not saying the fish carb isn't a fine working carb, I'm just saying that it won't get 100+ mpg in a 5000 pound truck]

Oh I in no way think I im going to get any where near the 100mpg rating ive read about thats just silly. I do however think its possible to hit the 22-25mpg range on my 305 with some help.

blazerboy_4life 02-07-2011 02:28 PM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
Quote:

Originally Posted by DANTIP (Post 4469156)
A friend of mine is an engineer at Ford and specializes in port fuel-injection system design. We have had many conversations regarding carburetors, fuel-injection, fuel mix ratios, etc. My wife doesn't hang around long when we talk. Basically, gasoline engines operate properly when the optimum mixture of fuel and air is maintained. These guys get into enormous detail but it comes down to mixing the best/optimum amount of fuel with a given (or measured) amount of air. He admitted the best performing carburetor for road-driven vehicles is a properly set-up Quadrajet. Their testing shows a Q-Jet can approach port fuel-injection performance and economy.

Claims of dramatically better fuel economy with different gadgets aren't real.

My friend did convince me to buy a digital read-out system for carburetor set-up. These devices rely on an O2 sensor (you have to weld a bung into the exhaust pipe) to give you a mixture readout. With this and a setup procedure for the Q-jet, you can feel good about your carb performance. Indiana does not require any testing of tailpipe emissions, but I'll bet the mixture device could help you nail a lean setup that would aid in passing a sniff test.

Which digital system did you go with and how did it work out for you?

brad_man_72 02-07-2011 02:30 PM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
theirs plenty of carbs produing 100mpg, but their all bolted to mopeds and scooters!

Vintage Windmills 02-07-2011 02:34 PM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
Quote:

Originally Posted by DANTIP (Post 4469156)
A friend of mine is an engineer at Ford and specializes in port fuel-injection system design. We have had many conversations regarding carburetors, fuel-injection, fuel mix ratios, etc. My wife doesn't hang around long when we talk. Basically, gasoline engines operate properly when the optimum mixture of fuel and air is maintained. These guys get into enormous detail but it comes down to mixing the best/optimum amount of fuel with a given (or measured) amount of air. He admitted the best performing carburetor for road-driven vehicles is a properly set-up Quadrajet. Their testing shows a Q-Jet can approach port fuel-injection performance and economy.

Claims of dramatically better fuel economy with different gadgets aren't real.

My friend did convince me to buy a digital read-out system for carburetor set-up. These devices rely on an O2 sensor (you have to weld a bung into the exhaust pipe) to give you a mixture readout. With this and a setup procedure for the Q-jet, you can feel good about your carb performance. Indiana does not require any testing of tailpipe emissions, but I'll bet the mixture device could help you nail a lean setup that would aid in passing a sniff test.

I bet he will also tell you that even if a vehicle is 100% efficent, you'll still only get 30-40mpg due to wind resistance and tire to road resistance. It takes that much gas to keep it moving. Anyone will tell you this that has done the math or understands physics

Edit: this only applies for full size trucks, smaller vehicle #'s can be higher.

DANTIP 02-07-2011 02:41 PM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
Quote:

Originally Posted by blazerboy_4life (Post 4469167)
Which digital system did you go with and how did it work out for you?

It's an NGK AFX. It is intended to be mounted but I use it to help friends set-up their carbs, then we plug the O2 bung. Takes all of the guess-work out!

blazerboy_4life 02-07-2011 02:44 PM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
Quote:

Originally Posted by DANTIP (Post 4469187)
It's an NGK AFX. It is intended to be mounted but I use it to help friends set-up their carbs, then we plug the O2 bung. Takes all of the guess-work out!

Yeah it sounds like a good idea. Ive got at least 2 more motors in my near future and I think this could help simplify a lot of things!

Edit: i just went to the website and dont see any pricing. What do those usually run if you dont mind my asking?

ChevLoRay 02-07-2011 03:27 PM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
During the Arab oil embargo of '73, there were several devices that claimed fastastic gas economy, that we were encouraged to buy. Fish carbs were one of them. There was another item, that was a lot cheaper. It was a simple device that leaned out your mixture by way of a vacuum in your intake...thinking burnt valves?

There have also been rumours that said the "car companies" were buying up the patents and parts so we would have to buy gas guzzlers.

Then, within the past 10 or so years, we had the Tornado. Not saying anything about it except their money-back guarantee is valid.

As long as the internal combustion engine has been in existance, or almost, someone has been trying to invent the perfect carburetion device and claiming unbelievable economy. Electronic fuel injection is superior to old-tech carburetors, but there are other tricks that will help. They're simple, too, if you think about it. Try keeping your tires inflated to the higher specification on the sidewall. Some tires are rated to carry their loads at 45PSI. Whatever that number is, believe that the higher value will let the tires roll down the road more easily. Underinflated tires will create drag and use more fuel.

406 Q-ship 02-07-2011 03:35 PM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
Fish carburators is from the 1950's.

VA72C10 02-07-2011 04:02 PM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
Quote:

Originally Posted by Tkmadone (Post 4469150)
I think I still have it somewhere...

I think if I did I'd be looking for it and have it on ebay within the hour ;)

71meangreenc10 02-07-2011 05:09 PM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
Quote:

Originally Posted by MARKDTN (Post 4468999)
It's not a new product, been around a long long time.



Sorry,

Never heard of it till this post......


Smitty

truckster 02-07-2011 05:15 PM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
My favorite "gas saver" was the natural herbal pill you were supposed to drop in your gas tank and get 25-50% better mileage. It turned out they were moth balls imported from Mexico.

69sixpackbee 02-07-2011 05:17 PM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
Pretty much like a Predator carb. Simple, yes. Fuel efficient, no.

69sixpackbee 02-07-2011 05:18 PM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
Quote:

Originally Posted by truckster (Post 4469526)
My favorite "gas saver" was the natural herbal pill you were supposed to drop in your gas tank and get 25-50% better mileage. It turned out they were moth balls imported from Mexico.

I used moth balls for years. Cheap octane booster ! (Benzene)

MARKDTN 02-07-2011 05:38 PM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
Quote:

Originally Posted by blazerboy_4life (Post 4469161)
Oh I in no way think I im going to get any where near the 100mpg rating ive read about thats just silly. I do however think its possible to hit the 22-25mpg range on my 305 with some help.

You will be a lot closer with fuel injection. My '83 K20 started life with the base 350, 3.42 gears, 700R4. It got 14 mpg city and 17 highway. At 150,000 miles a cam lobe went down. I swapped in a stone stock L98 Corvette TPI engine. Now I get 17/19 mpg and the driveability is much improved. On a 305 you might get a touch better. TPI is really optomized for a 305. I had a 305/5-sp/3.54 IROC Camaro that got 17-18 city and 20-21 highway.

mighty_mike015 02-07-2011 07:45 PM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
The O2 sensor setups are very common on "tuner" cars and referred to as widebands. Most common ones found are the AEM Uego and Innovate LC1. Autometer, NGK, and others also produce them. They are called widebands because they work on a 0-5v signal instead of the 'narrowband' 0-1v signal found in most oem setups. Some oem vehicles have widebands from the factory. I personally run the AEM Uego.

Stocker 02-07-2011 09:00 PM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
Quote:

Originally Posted by leddzepp (Post 4469129)
wonder if barney miller used one?

:lol:

blazerboy_4life 02-07-2011 09:38 PM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
Well once I get my 350 Built and put in I will be experimenting with the 305 that I have and see just what kind of mileage I can pull out of it. My single and only focus on it will be fuel economy. If it turns out that it doesnt have enough power to pull around my 70' SWB then Ill just throw it in my CJ2A.

As far as fuel economy gimmics go I seen a little device that is sold at Best Buy recently that plugs into your cigarette lighter and is supposed to balance out your electrical system. I guess its kind of like a Monster Power Center for your home theater system in that it balances out all the static in your electrical system resulting in better spark and performance from your components ultimately leading to better mileage. Best part is the Price. Its $60 for this silly thing! :lol:

Jeffs70 02-07-2011 10:58 PM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
never heard of it but I bet on most cars/trucks if they stopped all the fuel emissions and smog bs that cars would run better. get rid of half the crap under the hood and save people money.

Jeffs70 02-07-2011 11:01 PM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
maybe you can fab up your own plate to go on your existing intake with a few gaskets just to get the thing working good enough to test it..just a suggestion

blazerboy_4life 02-08-2011 01:16 AM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
Quote:

Originally Posted by Jeffs70 (Post 4470352)
maybe you can fab up your own plate to go on your existing intake with a few gaskets just to get the thing working good enough to test it..just a suggestion

Id thought about that. Is it really that simple though? Just... make it the right shape and air tight?

5150.4.67 02-08-2011 01:17 AM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
Quote:

Then we'll hear about the magnets on the gas line.
Then we'll hear about injecting hydrogen into the carb.
Then we'll hear about the air cleaner that swirls the air and improves mileage.
Then we'll hear about the split fire spark plugs that studies have shown improve mileage.
Lets add it up, hehehe.

I figure if I run that fancy carb with hydrogen injection made from my alternator and the free water in my windshield washer fluid, an air kotex or vortex swirler thingy, 10 cow magnets stuck on the side of the carb, super duper 4 electrode spark plugs (indexed of course), and my balance magnet braclet should put me at ...........

653 miles per gallon.:alky:

special-K 02-08-2011 09:04 AM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
Maybe they should change the name. Something about the name makes me envision high consumption. You know...drinks like a fish?:lol:

OhOneWS6 02-08-2011 11:14 AM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
Quote:

Originally Posted by blazerboy_4life (Post 4470724)
Id thought about that. Is it really that simple though? Just... make it the right shape and air tight?

Pretty much.

http://www.fireballroberts.com/FishC...Barrel_top.jpg

http://www.fireballroberts.com/FishC...rel_bottom.jpg

From here:
http://www.fireballroberts.com/Fish_Pictures.htm

blazerboy_4life 02-08-2011 12:28 PM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
Oh, Nifty. Nice find. Ive been trying to track down an adapter plate but i cant find anything on google or ebay. Now that I have pics I might try to fab something up that looks just like it.

VA72C10 02-08-2011 01:08 PM

Re: Anybody ever heard of "Fish" Carburetors and their supposed 100+mpg??
 
Quote:

Originally Posted by special-K (Post 4471025)
Maybe they should change the name. Something about the name makes me envision high consumption. You know...drinks like a fish?:lol:

good point....not exactly marketing genius to use the Fish name on a "low consumption" item....


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