Cliff's Quadrajet Parts and Rebuild Kits

General Category => Quadrajet Carb Talk and Tips => Topic started by: Overcamber on April 25, 2016, 03:57:58 PM

Title: fuel pressure?
Post by: Overcamber on April 25, 2016, 03:57:58 PM

gotta ask sorry.?

how does fuel pressure effect fuel delivery?  I thought if the bowl needed fuel the float asked for it and shut off once it was satisfied?..I can understand low pressure/volume not keeping up but over on the high side of things I'm not getting?

is there a breif/quick explanation?

thanks
Gary

Title: Re: fuel pressure?
Post by: Cliff Ruggles on April 26, 2016, 03:20:50 AM

Pressure of a liquid directly effects flow thru any orifice or line size.  I'm sure that there are more scientific ways to explain it, just keep in mind that when we are pushing a lot of fuel thru a tiny inlet seat, pressure is a BIG player in how much fuel passes into the carburetor in terms of volume.......Cliff

Title: Re: fuel pressure?
Post by: Overcamber on April 26, 2016, 06:32:44 PM

Thanks Cliff

Title: Re: fuel pressure?
Post by: 429bbf on May 05, 2016, 08:57:36 PM

hers another simple explanation . a pump does not create pressure,it produces volume , the restriction you push it through creates the pressure. hth

Title: Re: fuel pressure?
Post by: Ethan1 on May 06, 2016, 05:36:13 PM

Quote from: 429bbf on May 05, 2016, 08:57:36 PM

hers another simple explanation . a pump does not create pressure,it produces volume , the restriction you push it through creates the pressure. hth

 Pretty much what, Cliff, said, but in a more simple way. Makes a lot of sense. Thanks both for the explanation. 8)