Upgrading fuel system need recommendations - Page 2

Chuck Westcott · 01-14-2012, 06:42 PM

Just my opinion- The Filter should always be installed before the Pump.

FED 387 · 01-14-2012, 07:19 PM

after talking to Aeromotive their recommendation regarding return line/by pass regulators is unless you are making about 900+ HP , have multiple carbs or running a Nitrous system it is not necessary---one thing that does happen tho is by using a return line you are A) heating the fuel B) aerating the fuel--- because of A&B most cars in their(Aero) opinion do not need a bypass/return line---Because you have the tank in the rear in order to hav ample fuel supply I would run a -12 line to the reg --eliminate the Y and then run a -10 or at the minimum a -8 to each float bowl---as for a pump a Aeromotive/Weldon/Magnafuel will work just fine---- watch the current(Amp) draw on the pump you decide on--- stay away from Barry Grant and some of the Holleys they draw lots of Amps!!!!!

FED 387 · 01-15-2012, 01:11 PM

its all about providing an ample supply of fuel to the carb/carbs---yes it might be slightly oversized but much better than being undersized ---I realize that ya all put these humongeous pumps 300-500 gal/phour and fuel lines on and the fuel only has to get thru a 70 something to 90 something jet---but cuz of all the bends and restrictions ya put in the fuel delivery system plus having to overcome having the tank in the rear of the vehicle--- can it really hurt------think about it ya can probably do a quick burnout and run most if not the whole 1/4 with whatever fuel ya have in just the float bowls-- ya really dont need much more than a 1 gal fuel tank plus what ever is in the fuel lines to do a burn out run the 1/4 and drive back down the return road, go to the scales and go back to your pit spot and have maybe at least a 1/2 gal if not more left over---ya wanna run a -6 or -8 fine go ahead and do it---makes no difference to me whatsoever

Bill Baer · 01-17-2012, 04:53 PM

Mario

Your system looks adequate mechanically, It’s possible that the previous guy used two regulators because he had one apart and noted how small the feed hole is in these regulators.
Electrically you need to drive the pump with an adequately sized wiring and a relay.
You can use the switch to control the relay I also would use a Holley oil pressure safety switch that way when you shut of the ignition the pump dies as well. And finally pay attention to the grounding of the pump the body and / or the chassis are not always the best way to ground things with a high amperage draw.

01-14-2012, 06:42 PM	#1
Chuck Westcott Member Join Date: Dec 2003 Location: Brownsburg,Indiana Posts: 326 Likes: 0 Liked 0 Times in 0 Posts	Re: Upgrading fuel system need recommendations Just my opinion- The Filter should always be installed before the Pump. __________________ Chuck Westcott- S/C -S/G 225

01-14-2012, 07:19 PM	#2
FED 387 VIP Member Join Date: Jun 2006 Posts: 3,422 Likes: 529 Liked 333 Times in 180 Posts	Re: Upgrading fuel system need recommendations after talking to Aeromotive their recommendation regarding return line/by pass regulators is unless you are making about 900+ HP , have multiple carbs or running a Nitrous system it is not necessary---one thing that does happen tho is by using a return line you are A) heating the fuel B) aerating the fuel--- because of A&B most cars in their(Aero) opinion do not need a bypass/return line---Because you have the tank in the rear in order to hav ample fuel supply I would run a -12 line to the reg --eliminate the Y and then run a -10 or at the minimum a -8 to each float bowl---as for a pump a Aeromotive/Weldon/Magnafuel will work just fine---- watch the current(Amp) draw on the pump you decide on--- stay away from Barry Grant and some of the Holleys they draw lots of Amps!!!!!

01-15-2012, 01:11 PM	#3
FED 387 VIP Member Join Date: Jun 2006 Posts: 3,422 Likes: 529 Liked 333 Times in 180 Posts	Re: Upgrading fuel system need recommendations its all about providing an ample supply of fuel to the carb/carbs---yes it might be slightly oversized but much better than being undersized ---I realize that ya all put these humongeous pumps 300-500 gal/phour and fuel lines on and the fuel only has to get thru a 70 something to 90 something jet---but cuz of all the bends and restrictions ya put in the fuel delivery system plus having to overcome having the tank in the rear of the vehicle--- can it really hurt------think about it ya can probably do a quick burnout and run most if not the whole 1/4 with whatever fuel ya have in just the float bowls-- ya really dont need much more than a 1 gal fuel tank plus what ever is in the fuel lines to do a burn out run the 1/4 and drive back down the return road, go to the scales and go back to your pit spot and have maybe at least a 1/2 gal if not more left over---ya wanna run a -6 or -8 fine go ahead and do it---makes no difference to me whatsoever

01-17-2012, 04:53 PM	#4
Bill Baer Senior Member Join Date: Jul 2007 Location: Nothern IL Posts: 596 Likes: 1 Liked 1 Time in 1 Post	Re: Upgrading fuel system need recommendations Mario Your system looks adequate mechanically, It’s possible that the previous guy used two regulators because he had one apart and noted how small the feed hole is in these regulators. Electrically you need to drive the pump with an adequately sized wiring and a relay. You can use the switch to control the relay I also would use a Holley oil pressure safety switch that way when you shut of the ignition the pump dies as well. And finally pay attention to the grounding of the pump the body and / or the chassis are not always the best way to ground things with a high amperage draw. __________________ Bill Baer 3391 SC, 339B SC, QR Last edited by Bill Baer; 01-19-2012 at 03:52 PM.