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What is a better mech. fuel pump for a 500" BB ? #1587208 03/03/14 12:39 AM 03/03/14 12:39 AM
Joined: Feb 2010 Posts: 18,493 Granite Bay CA Kern Dog OP Striving for excellence
Kern Dog OP Striving for excellence Joined: Feb 2010 Posts: 18,493 Granite Bay CA	I currently run this one: http://www.summitracing.com/parts/hly-12-440-11/overview/make/dodge It is the common Holley unit. I had some fuel delivery issues last year while breaking in the Lunati cam. Lately while running the car hard it has run out of fuel at WOT. The fuel pressure at idle is in the 7 range. At 3000 rpms in Park I can see the filter starting to empty out. The pressure slowly drops as well. I'm sure it is only worse when under a load while driving. The float level is dead center in the sight plug. I have a 3/8" fuel line from tank to carb. I recall reading that there is a better flowing Carter pump available. Any comments on the Carter unit or others?

Re: What is a better mech. fuel pump for a 500" BB ? [Re: Kern Dog] #1587209 03/03/14 01:18 AM 03/03/14 01:18 AM
Joined: Oct 2005 Posts: 4,950 WI Dcuda69 master
Dcuda69 master Joined: Oct 2005 Posts: 4,950 WI	I run a Carter pump on my 470" street toy. I've had it spun up over 6K multiple times with no issues.I even feed it with 5/16" line. Take a look at your pump pushrod....maybe slightly worn,not stroking the pump as far as it should? Pressure no volume??

Re: What is a better mech. fuel pump for a 500" BB ? [Re: Kern Dog] #1587210 03/03/14 01:21 AM 03/03/14 01:21 AM
Joined: Feb 2012 Posts: 4,454 Morristown Tn. 7 71birdJ68 master
71birdJ68 master 7 Joined: Feb 2012 Posts: 4,454 Morristown Tn.	Mancini has those Carter pumps

Re: What is a better mech. fuel pump for a 500" BB ? [Re: Kern Dog] #1587211 03/03/14 01:23 AM 03/03/14 01:23 AM
Joined: Jan 2010 Posts: 1,089 st.cloud fl D d-150 Smarter than a 5th grader?
d-150 Smarter than a 5th grader? D Joined: Jan 2010 Posts: 1,089 st.cloud fl	why not electric.if you got to spend money electric much better

Re: What is a better mech. fuel pump for a 500" BB ? [Re: 71birdJ68] #1587212 03/03/14 01:23 AM 03/03/14 01:23 AM
Joined: Oct 2005 Posts: 4,950 WI Dcuda69 master
Dcuda69 master Joined: Oct 2005 Posts: 4,950 WI	Quote: Mancini has those Carter pumps yep..was just checking http://chucker54.stores.yahoo.net/mechanical.html

Re: What is a better mech. fuel pump for a 500" BB ? [Re: Kern Dog] #1587213 03/03/14 02:11 AM 03/03/14 02:11 AM
Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska	Quote: I had some fuel delivery issues last year while breaking in the Lunati cam. Lately while running the car hard it has run out of fuel at WOT. The fuel pressure at idle is in the 7 range. At 3000 rpms in Park I can see the filter starting to empty out. The pressure slowly drops as well. The float level is dead center in the sight plug. I have a 3/8" fuel line from tank to carb. What Dcuda said there is something else going on. We run a 360 stock car with an OE "airtex" mech pump (class rules)/5/16" line with NO starvation at 6200 RPM at WOT at the end of the straights. I ain't checked the psi (yet) with a gauge inside the car (did not have an isolator until now) & no direct fuel line to the inside of the car allowed but the eng does not lay down & in fact at ~5800-6K when it gets up on the "Hughes" cam it turns on like crazy. For you at 3K it for sure should not be running out of fuel & that's in Park at that (no load). Measure the pushrod/check the sock (if used) or there's a restriction somewhere (or the pump is shot) or possibly getting real hot or using E10 . live every 24 hour block of time like it's your last day on earth

Re: What is a better mech. fuel pump for a 500" BB ? [Re: RapidRobert] #1587214 03/03/14 12:49 PM 03/03/14 12:49 PM
Joined: Jan 2003 Posts: 12,153 Benton, IL. D DaveRS23 Special needs idiot
DaveRS23 Special needs idiot D Joined: Jan 2003 Posts: 12,153 Benton, IL.	Any pump that works at all should be able to supply fuel to the engine with no load. A good first step would be to run a hose from a can of gas to the inlet of the pump to see if that part works. Master, again and still

Re: What is a better mech. fuel pump for a 500" BB ? [Re: Kern Dog] #1587215 03/03/14 04:37 PM 03/03/14 04:37 PM
Joined: Jun 2003 Posts: 21,442 It's a dry heat gtx6970 Too Many Posts
gtx6970 Too Many Posts Joined: Jun 2003 Posts: 21,442 It's a dry heat	Excellant timing. I have a customer interested in this very issue. Plan is go with a new push rod , a quality mech pump, stock fuel tank, 3/8 sender and lines and call it good . Considering how often his car will see high RPM's I told him it would be fine ( may have to put a lower RPM chip in the MSD box as a just in case )

Re: What is a better mech. fuel pump for a 500" BB ? [Re: gtx6970] #1587216 03/03/14 08:14 PM 03/03/14 08:14 PM
Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska	Quote: I have a customer interested in this very issue. Plan is go with a new push rod , I hear some of em are crap, find a good one (you might ask on here) live every 24 hour block of time like it's your last day on earth

Re: What is a better mech. fuel pump for a 500" BB ? [Re: Kern Dog] #1587217 03/04/14 06:13 AM 03/04/14 06:13 AM
Joined: May 2008 Posts: 5,399 Aurora, Colorado 451Mopar master
451Mopar master Joined: May 2008 Posts: 5,399 Aurora, Colorado	Sent you a PM.

Re: What is a better mech. fuel pump for a 500" BB ? [Re: 451Mopar] #1587218 03/05/14 03:56 AM 03/05/14 03:56 AM
Joined: Feb 2010 Posts: 18,493 Granite Bay CA Kern Dog OP Striving for excellence
Kern Dog OP Striving for excellence Joined: Feb 2010 Posts: 18,493 Granite Bay CA	Sent you one back, 451 !

Re: What is a better mech. fuel pump for a 500" BB ? [Re: Kern Dog] #1587219 03/05/14 10:10 AM 03/05/14 10:10 AM
A Anonymous Unregistered
Anonymous Unregistered A	The Edelbrock while expensive claims to be able to support 600HP--I have used with great success. You must pay attention to details and not choke it down with wrong fittings etc.

Re: What is a better mech. fuel pump for a 500" BB ? [Re: ] #1587220 03/05/14 05:43 PM 03/05/14 05:43 PM
Joined: Jan 2003 Posts: 4,002 Joplin, Mo R rt66jim master
rt66jim master R Joined: Jan 2003 Posts: 4,002 Joplin, Mo	Clay Smith mechanical pumps are very good. I have seen them used on a 8 second dragster.

Re: What is a better mech. fuel pump for a 500" BB ? [Re: ] #1587221 03/05/14 05:57 PM 03/05/14 05:57 PM
Joined: Feb 2003 Posts: 10,218 Someplace you aren't S SomeCarGuy I Live Here
SomeCarGuy I Live Here S Joined: Feb 2003 Posts: 10,218 Someplace you aren't	Quote: The Edelbrock while expensive claims to be able to support 600HP--I have used with great success. You must pay attention to details and not choke it down with wrong fittings etc. x 2 I want my fair share

Re: What is a better mech. fuel pump for a 500" BB ? [Re: SomeCarGuy] #1587222 03/05/14 06:07 PM 03/05/14 06:07 PM
Joined: Oct 2006 Posts: 427 Sweden Mopar Guy mopar
Mopar Guy mopar Joined: Oct 2006 Posts: 427 Sweden	Same Carter here on my six pack 505 street toy from Mancini and i cant complain I use the stock fuel line that 440 six pack came whit and that inqludes the return line from vapor separator !

Re: What is a better mech. fuel pump for a 500" BB ? [Re: Mopar Guy] #1587223 03/05/14 09:21 PM 03/05/14 09:21 PM
Joined: Sep 2006 Posts: 1,139 West Tennessee R rbstroker super stock
rbstroker super stock R Joined: Sep 2006 Posts: 1,139 West Tennessee	I used my original 1970 440 six pack pump on my 496 stroker 6 pack without any issues whatsoever. This is the land of the free because of the brave

Re: What is a better mech. fuel pump for a 500" BB ? [Re: 451Mopar] #1587224 03/05/14 10:41 PM 03/05/14 10:41 PM
Joined: May 2008 Posts: 5,399 Aurora, Colorado 451Mopar master
451Mopar master Joined: May 2008 Posts: 5,399 Aurora, Colorado	Pics of what I have. Ports blocked off for shipping. 8063304-CarterPump.jpg (49 downloads)

Re: What is a better mech. fuel pump for a 500" BB ? [Re: ] #1587225 03/06/14 02:45 AM 03/06/14 02:45 AM
Joined: Feb 2010 Posts: 18,493 Granite Bay CA Kern Dog OP Striving for excellence
Kern Dog OP Striving for excellence Joined: Feb 2010 Posts: 18,493 Granite Bay CA	Quote: The Edelbrock while expensive claims to be able to support 600HP--I have used with great success. You must pay attention to details and not choke it down with wrong fittings etc. The Holley I have has a 5/16" outlet. I had to use an adapter to a 3/8" for the line to the carb.

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