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unburned fuel myth BUSTED
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pimpa Offline
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Post: #1
unburned fuel myth BUSTED
hello all!
I installed a gen (7plates +nnnnn-, sealed cells)
engine : 1.3 carburator
hho output 0.8lpm at 10A, I also tried to run the same generator at 6A and 3.5A with no positive results whatsoever.
the carb not leaned yet, just wanted to see what the hho alone can achieve, well not much.
no more horsepower
no increased idle speed (the idle actually lower due to the load on the alternator)
no mpg gain I could measure, maybe 1%!?
the gas is injected into the air cleaner box, no leaks.

next step will be the carb leaning without hho, and then with it.
I will keep u posted.
11-18-2008 11:08 PM
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gtkco Offline
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Post: #2
RE: unburned fuel myth BUSTED
I appreciate what you are doing, but not so fast. This NASA report confirms an increase. A lot of it is hard to follow but this is done on a 1977 7ltr carb engine.

http://ntrs.nasa.gov/archive/nasa/casi.n...016170.pdf
11-19-2008 05:48 AM
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saltmine Offline
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Post: #3
RE: unburned fuel myth BUSTED
Great Pimpa. Uh, how do you plan to "LEAN" the carburator?

Just thought I'd ask.
11-19-2008 11:55 AM
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pimpa Offline
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Post: #4
RE: unburned fuel myth BUSTED
saltmine Wrote:Great Pimpa. Uh, how do you plan to "LEAN" the carburator?

Just thought I'd ask.

Hi,
what is great about it?
oh well I might need some help.
the plan is to put negative pressure above the fuel inside the fuel bowl via the fuel bowl vent valve. I already made a regulator using the existing vacuum in the manifold. it is capable of doing 0-15 "water mm" vacuum no matter what the input is. unfortunately the fuel bowl is not closed, the vacuum leaks somewhere, so i have to use a T from the pcv valve (more volume) or fix the leak if possible. I do not know carbs very much , but i think the leak is a hole drilled on the fuel bowl top on purpose. just guessing...
(This post was last modified: 11-19-2008 02:28 PM by pimpa.)
11-19-2008 02:13 PM
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pimpa Offline
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Post: #5
RE: unburned fuel myth BUSTED
gtkco Wrote:I appreciate what you are doing, but not so fast. This NASA report confirms an increase. A lot of it is hard to follow but this is done on a 1977 7ltr carb engine.

this is what I have found about NASA:
The URL that you have entered in your browser is incorrect. Please re-enter the URL and try again.

The Link that you clicked on points to a page on this server that no longer exists. Please contact the owner of the referring web site to inform them of this situation.

I will try it later
:-)





ttp://ntrs.nasa.gov/archive/nasa/casi.n...016170.pdf
11-19-2008 02:16 PM
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pimpa Offline
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Post: #6
RE: unburned fuel myth BUSTED
saltmine Wrote:Great Pimpa. Uh, how do you plan to "LEAN" the carburator?

Just thought I'd ask.

Hi,
what is great about it?
oh well I might need some help.
the plan is to put negative pressure above the fuel inside the fuel bowl via the fuel bowl vent valve. I already made a regulator using the existing vacuum in the throttle. it is capable of doing 0-15 "water mm" vacuum no matter what the input is. unfortunately the fuel bowl is not closed, the vacuum leaks somewhere, so i have to use a T from the pcv valve (more volume) or fix the leak if possible. I do not know carbs very much , but i think the leak is a hole drilled on the fuel bowl top on purpose. just guessing...
11-19-2008 02:48 PM
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Tom1803 Offline
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Post: #7
RE: unburned fuel myth BUSTED
There are two ways to lean a carb.
1. Is with the fule idel screws which are probley caped.
2. Is by rejetting. Which is taking the carb. apart and putting in smaller ones.
Applying a vaccum to the bowl is not going to help.

2002 PT Cruser 2.4
Phoenix, Arizona
11-19-2008 02:59 PM
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ipz2222 Offline
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Post: #8
RE: unburned fuel myth BUSTED
pimpa, I've often wondered how many people die from ignorance each year and I see one in the makeing.
Please do not do what you're talking about. Go to Auto zone and buy a book on carbs and study it.
PS. You don't have to lean the fuel mixture any. The hho will produce more power, you will lift your foot from the throttle slightly to maintain the same speed and the carb will send in "less" fuel.
11-19-2008 03:02 PM
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pimpa Offline
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Post: #9
RE: unburned fuel myth BUSTED
"Please do not do what you're talking about. "
ok, but what is the risk?
I can't see anything wrong with the idea.
unless the whole thing backfires.
11-19-2008 04:28 PM
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Gary Offline
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Post: #10
RE: unburned fuel myth BUSTED
carb venting is there for a purpose. You never heard of a carb fire? Which usually delegates into a motor fire? Which can transform into a carbeque?
Yeah, gas is dangerous for the unlearned.
Carbs are relatively simple to understand at first, then a bit complicated in details, then fully clear when it all comes together.
It's not just a can with a tube coming out.
11-19-2008 04:52 PM
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