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Old 02-07-2014, 12:46 AM   #125 (permalink)
GeorgeWiseman
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Join Date: Jan 2014
Location: Oroville, WA
Posts: 42

Blue Aveo - '08 Chevrolet Aveo 5
90 day: 25.13 mpg (US)
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Quote:
Originally Posted by sarguy01 View Post
HyCO-2DT Installation Instructions This is your product, correct?
It's a fellow who is manufacturing HyCO 2DT canisters for sale. It's my technology but not my product. I do not patent my innovations. Anyone who purchases my books can build themselves and make their own business, which is what this man (and many others) have done.

Quote:
Originally Posted by sarguy01 View Post
I googled HyCO and found this. Basically, the HyCO is a can that is plumbed into the fuel return line. Then, using compressed air, the vapors that collect in the top of the can are forced into the intake manifold, correct? Left over gas is then sent back to the fuel tank.
That's a close enough idea of how the HyCO 2DT works. Please know that the HyCO 2DT and the HyCO 2A, while both are 'evaporitive fuel' technologies, are different devices. The HyCO 2DT is designed to work on turbocharged (diesel or gasoline) engines. The HyCO 2A only works on gasoline engines.

Quote:
Originally Posted by sarguy01 View Post
This system is used to add fuel vapor into the intake manifold. I am assuming, from what you talk about on your website, is that the fuel vapor is burnt and less fuel will be injected via the fuel injection system, hence the huge gains.
I'd change the word 'huge' to 'respectable'; and note that any gains are only acquired if everything is working correctly (which I assist anyone I can).

Quote:
Originally Posted by sarguy01 View Post
Questions...

How do you regulate the amount of fuel vapor going into the engine? Is it the same amount at all times? An engine needs a different amount of fuel at idle then at 3,000 rpm under load. How does the HyCO regulate the amount of fuel vapor needed?
The HyCO 2DT regulates fuel vapors using turbo pressure. As the engine comes under load, the turbo pressure increases and 'more' vapors are formed.

The HyCO 2A generally depends on engine vacuum so reduces it's vapor as the engine comes under load... Unless you put a venturi in the intake air, then the vapors will pretty much match air consumption.

Quote:
Originally Posted by sarguy01 View Post
Why does the EFIE need to be used if the engine is still burning gasoline? Am I incorrect to say that burning gasoline vapors are the same as burning gasoline coming out of a fuel injector? Wouldn't the O2 sensor read this the same?
Yes, so you answered your own question. It doesn't matter if you are burning gasoline in liquid or vapor; as you increase combustion efficiency your exhaust oxygen content will rise.

Quote:
Originally Posted by sarguy01 View Post
How do you know that the engine is being run off of the vapors? How much vapor is produced?
Those are good questions which become really obvious once you start using the technology. You cut back on the liquid as you add vapor, so the air:vapor fuel ratio stays consistent (which is why you don't lose power). I can't tell you how much vapor is produced because there are too many variables.

With diesel, the HyCO 2DT doesn't produce enough to have a combustible mixture in the intake manifold, but it will for gasoline.

The HyCO 2A will produce enough vapors to idle a 300 ci engine but I don't recommend producing that much, it makes it harder to make a smooth transition between the vapor and liquid fuel systems.

Quote:
Originally Posted by sarguy01 View Post
Does the EFIE simply lean the engine out and allow for these huge MPG gains?
No. That is a common misunderstanding. The EFIE is NOT a fuel saver, ask anyone who has installed it without also installing an actual combustion enhancement technology.

Quote:
Originally Posted by sarguy01 View Post
Is it safe to have a homemade can full of gas in my engine compartment?
It is as safe or safer that the vehicle's fuel tank. In hundreds of installations over decades of time, on all kinds of vehicles, I've never heard of a mishap.
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