SoCal Jet Boats

Tech Talk => Engine Mechanical / Electrical => Topic started by: JimmyMc1904 on April 10, 2014, 10:45:21 AM

Title: BBC 454 fuel pump
Post by: JimmyMc1904 on April 10, 2014, 10:45:21 AM

What fuel pump do you bbc guys use for a 454 with a holley 4779 750 cfm? Do you recommend an inline pressure gauge? Thanks in advance guys!!!


Sent from my iPhone using SoCal Jet Boats

Title: Re: BBC 454 fuel pump
Post by: Havasukona455 on April 10, 2014, 11:10:48 AM

Electric or mechanical ?


Sent from my iPhone using SoCal Jet Boats

Title: Re: BBC 454 fuel pump
Post by: ka0tyk on April 10, 2014, 11:24:37 AM

ive ran both a mechanical and electrical.  the electrical was noisy...  i did use it to drain the tanks when i wasnt using the boat though.  i now have a mechanical and it "just works"

just get this and keep it simple.  i do have a pressure gauge on my fuel rail of my carb too.

http://www.holley.com/12-454-11.asp (http://www.holley.com/12-454-11.asp)

Title: Re: BBC 454 fuel pump
Post by: eliminator18 on April 10, 2014, 11:25:34 AM

I use holley red electric


Sent from my iPhone using SoCalJetBoats mobile app

Title: Re: BBC 454 fuel pump
Post by: Havasukona455 on April 10, 2014, 11:29:51 AM

I also run a mechanical. Does the job. I run that same Holley on my 355 race motor and it does just fine


Sent from my iPhone using SoCal Jet Boats

Title: Re: BBC 454 fuel pump
Post by: JimmyMc1904 on April 10, 2014, 11:52:18 AM

So the 110 GPH will do the job? I take it the &0 GPH IS FOR SBC?


Sent from my iPhone using SoCal Jet Boats

Title: Re: BBC 454 fuel pump
Post by: JimmyMc1904 on April 10, 2014, 11:53:02 AM

And yes it mechanical...


Sent from my iPhone using SoCal Jet Boats

Title: Re: BBC 454 fuel pump
Post by: Jet Boat Maloney on April 11, 2014, 04:15:06 AM

I'm seriously considering switching over to a mechanical pump.


Sent from my iPhone using SoCal Jet Boats

Title: Re: BBC 454 fuel pump
Post by: ka0tyk on April 11, 2014, 09:48:11 AM

Quote from: JimmyMc1904 on April 10, 2014, 11:52:18 AM

So the 110 GPH will do the job? I take it the &0 GPH IS FOR SBC?


Sent from my iPhone using SoCal Jet Boats

110gph is fine for a mild BBC, 80 is for a sbc.  the most important thing is pressure.  That holley i linked wont put out more than 8psi and *most* carbs dont want anything over 7-8psi.  If you get a pump thats a higher psi, you'll need a pressure regulator and a gauge on the fuel rail.  I'd personally have a gauge on the fuel rail (and i do) regardless so when/if you have engine problems you can rule out one of the main 4 causes... fuel, compression, air, spark.