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Re: Help set up my fuel system [Re: MR_P_BODY] #1763634 03/04/15 03:37 AM 03/04/15 03:37 AM
Joined: Jul 2006 Posts: 4,319 Puyallup, WA S StealthWedge67 master
StealthWedge67 master S Joined: Jul 2006 Posts: 4,319 Puyallup, WA	Quote: Quote: Quote: Quote: Need to upgrade my fuel system on my street/strip Satellite. It's adequate for street use but has started to run out of fuel at the top of third when I've gotten on it on a hill (highway onramp). Right now the engine is in the 525 HP neighborhood, car should run mid 11s but hasn't been down the strip yet as I'm still sorting it out. Plans in the near future are for headwork and 600-650 HP. I'm thinking 1/2 inch pickup and fuel line up to the mechanical pump, with one Holley black pump. 9/16 line from the pump to carb with a dead head fuel pressure regulator. Does this sound sufficient? I would think that this should be more than enough but I really don't know. Why the 9/16 line... the 1/2 is your choke/flow and is more than enough.. I assume you would run on the mech pump and turn on the black when racing Will a mechanical pump draw through an electric pump when on the street just driving around? I wouldn't mind having an electric pump at hand for race duty, but it would be nice to be able to drive around town on just the mechanical pump. (sorry for the hi-jack) My buddy does it on his 460.. mech pump with a holley blue in the rear... so yeah I guess it works..he has been doing it about 6 years now... he runs 11.50 on motor and 10.80 on a little spray \ Looking at the Carter rotary vane pump. Reading around on this a little, most seem to recommend using a parallel line around the elec. pump with a check valve. Would you say this would be good practice, Mike? LemonWedge - Street heavy / Strip ready - 11.07 @ 120

Re: Help set up my fuel system [Re: StealthWedge67] #1763635 03/04/15 03:59 AM 03/04/15 03:59 AM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Looking at the Carter rotary vane pump. Reading around on this a little, most seem to recommend using a parallel line around the elec. pump with a check valve. Would you say this would be good practice, Mike? I've never done it... to me the check valve would have to be big... same ID as the line... but I've never done it... I either run a mech or a elec... but thats me

Re: Help set up my fuel system [Re: MR_P_BODY] #1763636 03/04/15 04:14 AM 03/04/15 04:14 AM
Joined: Jun 2006 Posts: 5,161 CT GTX MATT OP master
GTX MATT OP master Joined: Jun 2006 Posts: 5,161 CT	I have a friend with a carter electric (not sure which one) that the mechanical pump wont pump through, he's gotten stranded a couple of times over the years when the electric pump dies, so it must depend on the pump. Now I need to pin those needles, got to feel that heat Hear my motor screamin while I'm tearin up the street

Re: Help set up my fuel system [Re: GTX MATT] #1763637 03/04/15 02:41 PM 03/04/15 02:41 PM
Joined: Jan 2003 Posts: 27,421 Balt. Md 3 383man Too Many Posts
383man Too Many Posts 3 Joined: Jan 2003 Posts: 27,421 Balt. Md	You could do like I do. I run just an electric pump on the street but I do carry a spare pump with me. I run the Holley electric pump and I have never had it fail yet but its good to be prepared. I also carry a spare coil , ballast , dist pick-up and dist cap & rotor. Ron

Re: Help set up my fuel system [Re: 383man] #1763638 03/06/15 11:14 AM 03/06/15 11:14 AM
Joined: Nov 2003 Posts: 1,033 Madison, Wisconsin chrisnben super stock
chrisnben super stock Joined: Nov 2003 Posts: 1,033 Madison, Wisconsin	I'm a huge fan of the quieter gerator vane pumps such as the HP125 Holley or Mallory 140 along with a 100 micron filter. And also running a return line system! Just run one GOOD electric pump with return and it will last for years! Do it once, do it right. Of course use a return style regulator and I'm a fan of -8AN single line to the carb with the inline gauge and another 40 micron filter. Remember, same size line up & back (1/2" with your future add-ons). Simple with the new 1/2" stock pickup tubes for stock tanks now (Vansauto.com). Most of the tanks have an "extra" vent line you can use for the return- or with a new tank, weld on a bung & fitting for it. '70 Cuda "Badfish 2"- in the works Home of MoPar University- We school 'em one at a time!!

Re: Help set up my fuel system [Re: chrisnben] #1763639 03/06/15 03:44 PM 03/06/15 03:44 PM
Joined: Jul 2006 Posts: 4,179 California mickm master
mickm master Joined: Jul 2006 Posts: 4,179 California	i don't know, but it seems to me that fuel systems get way overthought and over bought. i run the stock 3/8" fuel line and pickup to a carter mechanical pump from mancini. from there i run 5/16" line to a tee, and 5/16" line to both carbs. essentially, it is a stock hemi system. the pump was supposed to self regulate to the 5.5-6psi that the carters need, but was all over the map, as high as 10psi. i got another pump from them, the same. so i hung a holley regulator directly off of the pump. other than that, this is a stock system. so far i have no indication of starving for fuel, and i run 2 650 edelbrocks. granted, i haven't taken it down the track, so i don't know what it will do after 10-11 seconds of full throttle, but if there was an issue i could most likely up the pressure at the regulator and that may solve it, even for the track. so a basically stock system is feeding 540" and 1300cfm, so far with no issues. and yes, i do pound it!

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