Do you guys think a 1mm hole will be alright for the air bleed system! It looks plenty small to me. Thanks in advance Lancer!!

 

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.

 

Thanks for the reply! I was hoping to get away the 1mm hole but maybe not?

 

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.

 

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!!

 

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 agree completely, but i would like to throw in another point. if you are not running big power and don't require lots of fuel, it would be beneficial to run the "larger" (.5mm-.75mm) orifice to keep the fuel flowing in the lines. this will help prevent gelling in the tank and lines to the untreated fuel. the high circulation rate will keep the fuel stirring. only beneficial for cold climates. in warm climates, forget it.

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.

 

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!!

 

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.

 

Those snubbers look like a great idea!! I'm gonna see if i can hunt some down. What size do you think i should use?

Ooops. I see you already have the size listed. Thanks!!

 

the smallest they have are .0400 inch, and one millimeter is .0393. so i would go with the smallest one they have.

 

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

 

I think on one of Kwik's threads that was what was decided on.
Craig

 

Thank you!! 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.

 

I called to order a pressure snubber, and they acutally directed me to a restricted orifice. It's essentially the same thing, though. They are roughly $10 each. Here's the link to the metal orifices:
http://www.okcc.com/PDF/Metal%20Orif...onnections.pdf


I think you have a typo. The smallest one they have is acually a .004 inch not .04 inch.