I have a Holley blue on my car for 2 years now..tired of the sound. is there pump that is quieter? it's hard to find something when your not exactly sure what your specifically looking for..would also like to go a little overkill on the flow rate for this one as well so i wont need to buy another anytime soon...any help is appreciated, thanks
Mainly depends on how you plumb them but most gerotor(spelling?) style pumps are pretty quiet. The newer Holley 150 is really a nice pump as is the older 125. Many of the Walbro's are decent too. Keep in mind that dead heading increases pulsation induced vibration whereas return style designs/plumbing will smooth things out to a noticeable degree. Things that can make a HUGE difference are mounting locations(trunks and rear end housing mounting locations just create echo chambers). Also use a rubber or soft plastic mounting shim to reduce vibration like you would with an exhaust hanger. And a bit of soft line for the first few inches in and out will isolate things to keep the lines from adding insult to injury.
hehehe...I had the same problem back a few years! You probably didn't realize that I had an electric pump on my car...its pretty quiet! Here is a link to what solution I found: http://mmb.maverick.to/showthread.php?t=35461&highlight=fuel+pump Here is a link to the vid mentioned as putfile is long gone(its the one with the steering wheel and Tach): http://s370.photobucket.com/user/grabber71/library/miscell
I've had two differnet Mr Gasket 12 S pumps in my 77 now (the first one quit a couple weeks ago after a 6 year run) The first was an all metal pump that was pretty quiet, just a ticking sound when running. The newer one has a low pitched buzzing that while not noticeable can be heard. These pumps are rated at 35 gal/hr. This is enough to feed the three carbs on my 331.
Mine's a holley blue. Pretty much silent. Took a little work to make it that way, though... Hard to tell from the picture, but the pump hang-down brackets are about 1/8" away from the frame rail. I used rubber grommets to space it away from the frame, and hung it down a few inches. The only time I hear it now is when the tank gets down to about 1/8 full, and the pump starts to cavitate. Which is fine by me...reminds me that I am low on gas and need to refill. Before doing all of this, it was LOUD!!! Loud enough that you could hear the pump OVER the Flowmaster Super 44s!
