Air bleed hole
Lead Driver
Joined: Oct 2004
Posts: 7,413
Likes: 1
From: Columbia, MO
I think it will work, but is a lot bigger than you need. That 1mm hole is going to be bleeding off an extra gallon of fuel about every 4 minutes. I'd go with about half that size. A 0.5mm orifice will bleed off less than 25% of the fuel that the 1mm hole would, and still let the air through.
Lead Driver
Joined: Oct 2004
Posts: 7,413
Likes: 1
From: Columbia, MO
You could get away with it, it's just going to flow more fuel than it needs to, which could take away from the fuel available to the injectors and force the fuel pump to work harder to keep up with the extra demand.
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Elder User
Joined: Jan 2004
Posts: 803
Likes: 0
From: Bobcaygeon Ont.
Thanks again jt. I did some searching and found that my 1mm hole is way to big. Kwiks was .45mm and he said that was to big. He downsized to something like .15-.20mm. I think i'll do the same to be safe. Don't wan't to starv engine for fuel and don't want to hurt my fuel pump. I can't wait to get it done!!
Fleet Mechanic
Joined: Feb 2005
Posts: 1,797
Likes: 1
From: Northern Colorado
Originally Posted by jtharvey
I think it will work, but is a lot bigger than you need. That 1mm hole is going to be bleeding off an extra gallon of fuel about every 4 minutes. I'd go with about half that size. A 0.5mm orifice will bleed off less than 25% of the fuel that the 1mm hole would, and still let the air through.
I'm just going to wait until you figure out all the mechanics and follow your excellent lead!
Post Fiend
Joined: Jul 2005
Posts: 14,582
Likes: 12
From: 21791
Originally Posted by jtharvey
You could get away with it, it's just going to flow more fuel than it needs to, which could take away from the fuel available to the injectors and force the fuel pump to work harder to keep up with the extra demand.
but like i said, i see no need for this and i would run a .35mm if i had the fuel mods, but i was just throwing it out there for food for thought.
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Elder User
Joined: Jan 2004
Posts: 803
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From: Bobcaygeon Ont.
I am going to chip it forsure!! I have the ww,full flow exhaust(no muffs or cats)ccv mod and the kwik filter. I just need to get an egt gauge and i will have all my gauges. I love working on my truck and anything to make it run better i'm gain for it!! So do you think the .35 orafic will be fine or what? What do you think Kwik? Thanks again for all the replies!! I try to help out when i can aswell!! 
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Post Fiend
Joined: Jul 2005
Posts: 14,582
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From: 21791
anyhting in the range of .15-.45mm should be fine. you may want to look into a "pressure snubber" ==> http://www.okcc.com/PDF/PressSnub.pdf its a pretty neat device. look in this thread: https://www.ford-trucks.com/forums/s...essure+snubber starting on page 5, with sc93f's post.
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Elder User
Joined: Jan 2004
Posts: 803
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From: Bobcaygeon Ont.
OK i did some figureing of my own. To convert inches to mm you multiply the inch by 25.4 ( i found this on a conversion chart i have) Here are the orafice sizes for the snubbers converted to metric:
.004 X 25.4 = 0.1016
.008 X 25.4 = 0.2032
.015 X 25.4 = 0.381
So i think the .008 would be the one to use. Its roughly .20mm like kwik has now. Does this sound right. Hope this helps
.004 X 25.4 = 0.1016
.008 X 25.4 = 0.2032
.015 X 25.4 = 0.381
So i think the .008 would be the one to use. Its roughly .20mm like kwik has now. Does this sound right. Hope this helps
Lead Driver
Joined: Oct 2004
Posts: 7,413
Likes: 1
From: Columbia, MO
Originally Posted by guzzle92
Pretty impresive Jeremy.. I can see you've been doing some homework.
I'm just going to wait until you figure out all the mechanics and follow your excellent lead!
I'm just going to wait until you figure out all the mechanics and follow your excellent lead!
The parts are almost all here, and I will be putting together the system sometime in the next 2-3 weeks. I'll be sure to get pics the whole way. I think I've got the mechanics of it figured out, but I don't want to speak too soon, just in case I run into a snag on the install.
Lead Driver
Joined: Oct 2004
Posts: 7,413
Likes: 1
From: Columbia, MO
Originally Posted by strokin_it7.3
anyhting in the range of .15-.45mm should be fine. you may want to look into a "pressure snubber" ==> http://www.okcc.com/PDF/PressSnub.pdf its a pretty neat device.
http://www.okcc.com/PDF/Metal%20Orif...onnections.pdf
Originally Posted by strokin_it7.3
the smallest they have are .0400 inch, and one millimeter is .0393. so i would go with the smallest one they have.