Anyone using an in-tank fuel pump in a factory tank?
#2999590
12/29/21 05:01 PM
12/29/21 05:01 PM
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Joined: Aug 2003
Posts: 3,896
St. Louis, MO
Blues_Cuda
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St. Louis, MO
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Has anyone successfully tried an OEM-style tank with an in-tank fuel pump at the track? Something like the Aeromotive offering: Aeromotive 18343. I see they do not recommend it for drag racing or handling unless running a 1/2 tank of gas, but what other options are out there for a person not wanting to install a fuel cell in the trunk? A little background: I've had a very simple old-school Mallory 140 and a Magnafuel dead-head regulator on my wife's low 11sec street/strip '70 Barracuda the past 15+ years with no real issues, but it was never ideal routing due to the factory tank with a rear sump outlet and 3" tailpipes. (Pump is on the frame rail, and closer to the tailpipe than I would like.) At some point in the near future, the car is getting a bump in power with a new motor, so I figure now is a good time to do a proper fuel system upgrade with a return regulator, and so forth. It will still have a carb, and the plans are to drive it much more often than the typical 50 mile or less round trip it has had in the past. I realize the easy answer is to put a fuel cell in the trunk with an internal pump, but this is a stock-appearing car, and we actually use the trunk since the car is on the street more than the strip. With that said, it's slated to be deep in the 10s when I do make a pass at the track, so needing something that would supply the fuel demand and a healthy launch. If it's just as simple as making sure there is at least a 1/2 tank of fuel when I go to make a pass at the track, I guess it's not an issue. But I was looking for some real-world feedback. Thanks Scott St. Louis, MO  
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Re: Anyone using an in-tank fuel pump in a factory tank?
[Re: bobby66]
#2999638
12/29/21 07:12 PM
12/29/21 07:12 PM
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Joined: Aug 2005
Posts: 760
Southington Ct.
turbobitt
super stock
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super stock
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Southington Ct.
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I can't give any real world feedback on the track part of it but I can say I am using a Tanks inc stock location tank and it seems to have good baffling. Website describes it as follows, EFI style internal baffling with extra large 4.8 liter dual tube baffled fuel tray to prevent fuel pump starvation. Perfect for your Pro-Touring, Autocross or Road Racing Ride https://www.tanksinc.com/index.cfm/...=478/category_id=68/mode=prod/prd478.htmAG.
1970 Challenger w/572 Hemi street car and my pride and joy.
1986 T-Type with 272 Stage 2 Buick V6 engine - True 8 second street car. Just updated the engine and put down 928 HP @ 35# boost to the ground on chasis dyno.
1976 Cee Bee Avenger Jet Boat - 460 Ford powered.
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Re: Anyone using an in-tank fuel pump in a factory tank?
[Re: Blues_Cuda]
#2999647
12/29/21 07:35 PM
12/29/21 07:35 PM
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Joined: Dec 2016
Posts: 1,111
Usa
A39Coronet
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super stock
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Why not the 18443? Same type of setup but uses factory pickup locations on driver side. I just picked up on of my 71' e body. Not sure why they would say 1/2 tank, maybe worried about it coming out the fill tube? Do they offer an in tank pump for carbed units?
Last edited by A39Coronet; 12/29/21 07:36 PM.
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Re: Anyone using an in-tank fuel pump in a factory tank?
[Re: A39Coronet]
#2999689
12/29/21 09:10 PM
12/29/21 09:10 PM
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Joined: Aug 2003
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St. Louis, MO
Blues_Cuda
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St. Louis, MO
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Why not the 18443? Same type of setup but uses factory pickup locations on driver side. I just picked up on of my 71' e body. Not sure why they would say 1/2 tank, maybe worried about it coming out the fill tube? Do they offer an in tank pump for carbed units? Honestly, I did not even see the 18443 offering. I will look into that one. In my opinion, they are saying at least a 1/2 tank to avoid the fuel pickup from coming uncovered during a hard launch. At 1st glance, the 18443 does not state that limitation in its description. It is my understanding they are all carb compatible with the proper fuel pressure regulator.
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Re: Anyone using an in-tank fuel pump in a factory tank?
[Re: Blues_Cuda]
#2999707
12/29/21 09:34 PM
12/29/21 09:34 PM
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Joined: Aug 2011
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Pattison Texas
CSK
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Pattison Texas
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I run a Tanks inc efi tank, looks stock on underside, ran a carb with it for awhile now its EFI
1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5
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Re: Anyone using an in-tank fuel pump in a factory tank?
[Re: CSK]
#2999717
12/29/21 09:47 PM
12/29/21 09:47 PM
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Joined: Mar 2003
Posts: 9,100
Rogue River, OR
Jeremiah
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Rogue River, OR
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I have a 340lph Aeromotive Stealth tank in my GTS and am very happy with it. I run their regulator with good results too. 20psi in the main log and 5.5 on the carb and n20 regulators. It is plumbed with -6 ARP AQP socketless fittings and push lok hose for the feed and return per Aeromotives diagrams. It is pretty quiet and the sending unit was accurate.
One thing that might get me is installing the Dana 60 and 28x9" slicks. That project will require moving the axle back a 1/2" and I'm hope there won't be clearance issues with the 90 degree AN swivels that connect where the factory sending unit was originally installed.
I did make a 1" spacer to isolate the tank/pump from the body.
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Re: Anyone using an in-tank fuel pump in a factory tank?
[Re: Blues_Cuda]
#2999731
12/29/21 10:12 PM
12/29/21 10:12 PM
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Joined: Jan 2003
Posts: 31,036
Oregon
AndyF
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Oregon
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If it was me I'd probably use a drop in Holley EFI pump module. They are rated for 750 hp and will send 58 psi fuel up to the front. You can then use an EFI to Carb regulator with a return line to drop the pressure to 6 or 7 psi for a carb. The Holley module will drop into your stock tank and will use the factory gas gauge. You will most likely need to fabricate a return line system to work with this setup. You can also buy a stock appearing fuel tank that is designed to work with an internal EFI style pump. Tanks Inc has them as well as others. https://www.holley.com/products/fue...umps/muscle_car_efi_modules/parts/12-388
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Re: Anyone using an in-tank fuel pump in a factory tank?
[Re: AndyF]
#2999765
12/30/21 12:55 AM
12/30/21 12:55 AM
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Joined: May 2019
Posts: 712
Lake Villa Il
INTMD8
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super stock
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Lake Villa Il
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^ Probably could get away with that if you keep enough fuel in it and it's carbureted.
Would not work well with EFI. (You can have momentary starvation to the fuel pump with carb(s) as the engine won't starve for fuel until the float bowls empty but with EFI any starvation is an instantaneous lean condition). Well, usually. maybe not if you have fuel pressure/flow compensation set up and the injectors have enough overhead.
The tanks inc setup is what I have in my car and have used in previous cars. It works good for the most part but the bucket the pump is in isn't baffled and really, it's too big. If you launch the car on drag radials/slicks you will run into starvation issues with that setup as well below 1/2 tank. (at least that's what I see)..... as the fuel can still splash out of the bucket away from the pump.
On my current setup, I took 2.25" stainless exhaust tubing, cut it lengthwise into thirds (so using curved pieces) then trimmed length to fit length/width of the tanks inc bucket and tig welded into the bucket in an attempt to baffle/keep fuel from splashing out. Very difficult and most will probably not want to attempt.
Surge tank is probably the best solution for someone building a car capable of a quick 60ft or lateral G and wanting a stock appearance. (or run tanks inc/aeromotive as they are and don't run it low on fuel)
JMO!
69 Charger. 438ci Gen2 hemi. Flex fuel. Holley HP efi. 650rwhp @7250 510rwtq @5700
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Re: Anyone using an in-tank fuel pump in a factory tank?
[Re: Blues_Cuda]
#2999775
12/30/21 01:40 AM
12/30/21 01:40 AM
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Joined: Jan 2003
Posts: 11,712
Portage,michigan
B3422W5
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Portage,michigan
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Has anyone successfully tried an OEM-style tank with an in-tank fuel pump at the track? Something like the Aeromotive offering: Aeromotive 18343. I see they do not recommend it for drag racing or handling unless running a 1/2 tank of gas, but what other options are out there for a person not wanting to install a fuel cell in the trunk? A little background: I've had a very simple old-school Mallory 140 and a Magnafuel dead-head regulator on my wife's low 11sec street/strip '70 Barracuda the past 15+ years with no real issues, but it was never ideal routing due to the factory tank with a rear sump outlet and 3" tailpipes. (Pump is on the frame rail, and closer to the tailpipe than I would like.) At some point in the near future, the car is getting a bump in power with a new motor, so I figure now is a good time to do a proper fuel system upgrade with a return regulator, and so forth. It will still have a carb, and the plans are to drive it much more often than the typical 50 mile or less round trip it has had in the past. I realize the easy answer is to put a fuel cell in the trunk with an internal pump, but this is a stock-appearing car, and we actually use the trunk since the car is on the street more than the strip. With that said, it's slated to be deep in the 10s when I do make a pass at the track, so needing something that would supply the fuel demand and a healthy launch. If it's just as simple as making sure there is at least a 1/2 tank of fuel when I go to make a pass at the track, I guess it's not an issue. But I was looking for some real-world feedback. Thanks Scott St. Louis, MO Years ago i had a Duster that ran 10.30’s in good air. Had the stock tank, deadheaded Holley black. 1.40 ish 60 foot. 3350 pound car with me( all steel and i am a big guy) I NEVER raced the car( and i raced it a lot) without the fuel tank completely topped off. Car was very consistent, went lots of rounds with it. The biggest race i attended back then was the IHRA Northern Nationals. They allowed a 64 car field of local box/ no box cars to race in it every year as filler. Somehow, after having done some street driving with the car that week, i ended up on the starting line for 1st round in front of a packed house with 1/2 tank of gas in the car. Was chasing a slower car, 1/4 race. I get about 300 feet out chasing him, car noses over and he drives off into the sunset. Probably the low point of my racing career….running out of gas at a big event in first round. After never having an issue with a full tank, i found out quickly 1/2 tank allowed enough slosh to uncover the pickup. And nose the car over After that, installed cell in the spare tire well. Later years the car ran 9.80’s with that dead headed Holley black. Peer pressure convinced me to upgrade the fuel system. I did, saw zero, zilch zip. Nothing. Probably an honest 650 horse at that point.
Last edited by B3422W5; 12/30/21 01:47 AM.
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam
Best so far, 10.40 @127 1/4
1.41 best 60 foot
6.60 at 103.90 1/8
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Re: Anyone using an in-tank fuel pump in a factory tank?
[Re: INTMD8]
#2999937
12/30/21 01:44 PM
12/30/21 01:44 PM
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Joined: Mar 2007
Posts: 3,278
West Coast, USA
jbc426
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^...
Surge tank is probably the best solution for someone building a car capable of a quick 60ft or lateral G and wanting a stock appearance. (or run tanks inc/aeromotive as they are and don't run it low on fuel)
JMO!
I adapted a stock pick-up to hold an in-tank pump and run that up to a surge tank in the front of the car. It supplies air free fuel to the motor on a road course or drag strip even when there is only a gallon or two in the tank. Adding a Holley Hydromat would enhance the system even more. It works so well the way it is that I just didn't bother.
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
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Re: Anyone using an in-tank fuel pump in a factory tank?
[Re: Blues_Cuda]
#3000146
12/30/21 10:28 PM
12/30/21 10:28 PM
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Joined: Dec 2016
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Usa
A39Coronet
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Thanks everyone for the feedback. I definitely have an old-school mentality when it comes to fuel systems, so have a lot to learn. I was surprised to see the Aeromotive in-tank offering mentioned by A39Coronet only has -6 feed and return lines, but can handle 700+hp applications. Yet the Aeromotive A1000 we have for our NSS 64 Plymouth, and the Magnafuel 500 we had previously installed on the 64 required -10 fuel line. I suppose I could be comparing apples to oranges.  If you think that's small, check out the Holley tanks, and maybe even the Tanks Inc pumps. Pretty sure they're even smaller NPT sizes. They claim they're adequate tho
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Re: Anyone using an in-tank fuel pump in a factory tank?
[Re: jbc426]
#3000178
12/31/21 12:05 AM
12/31/21 12:05 AM
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Joined: Mar 2010
Posts: 1,061
Atlanta, GA
mgoblue9798
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super stock
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Atlanta, GA
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^...
Surge tank is probably the best solution for someone building a car capable of a quick 60ft or lateral G and wanting a stock appearance. (or run tanks inc/aeromotive as they are and don't run it low on fuel)
JMO!
I adapted a stock pick-up to hold an in-tank pump and run that up to a surge tank in the front of the car. It supplies air free fuel to the motor on a road course or drag strip even when there is only a gallon or two in the tank. Adding a Holley Hydromat would enhance the system even more. It works so well the way it is that I just didn't bother. That is a slick setup sir. What application or part number fuel pump did you use?
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Re: Anyone using an in-tank fuel pump in a factory tank?
[Re: mgoblue9798]
#3000219
12/31/21 08:30 AM
12/31/21 08:30 AM
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Joined: Dec 2009
Posts: 339
Gilroy,CA.
mopardude318
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enthusiast
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Gilroy,CA.
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I used an Aeromotive stealth 340 lph in tank pump kit on my ‘ 74 PowerWagon. Carburetor bypass regulator -8 lines feed and return to feed a supercharged small block. https://www.summitracing.com/parts/aei-18688
408 Stroker 533 HP 520 FT LBS...........................1970 Dart RMS AlterKation
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Re: Anyone using an in-tank fuel pump in a factory tank?
[Re: mopardude318]
#3000221
12/31/21 09:03 AM
12/31/21 09:03 AM
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Joined: Jan 2003
Posts: 8,027
Tulsa OK
Bad340fish
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Tulsa OK
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I ran a stock a body 5/16" pickup down to the low 11s before I changed everything when I went EFI. I was able to run down pretty low on the tank with no trouble but I generally showed up to race with 1/2-3/4 of a tank.
Since you are staying carb you have a way bigger window for slosh than EFI. So I think one of these basic EFI tanks would be just fine, or you could stick some Holley hydramat on the end of the stock style pickup.
68 Barracuda Formula S 340
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Re: Anyone using an in-tank fuel pump in a factory tank?
[Re: mgoblue9798]
#3000253
12/31/21 11:56 AM
12/31/21 11:56 AM
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Joined: Mar 2007
Posts: 3,278
West Coast, USA
jbc426
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West Coast, USA
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^...
Surge tank is probably the best solution for someone building a car capable of a quick 60ft or lateral G and wanting a stock appearance. (or run tanks inc/aeromotive as they are and don't run it low on fuel)
JMO!
I adapted a stock pick-up to hold an in-tank pump and run that up to a surge tank in the front of the car. It supplies air free fuel to the motor on a road course or drag strip even when there is only a gallon or two in the tank. Adding a Holley Hydromat would enhance the system even more. It works so well the way it is that I just didn't bother. That is a slick setup sir. What application or part number fuel pump did you use? I generally use a Deatschwerks pump, but for higher flow stuff I use Fuel Labs pumps. I went with a Radium Engineering for the surge tank, but Fuel Labs makes a nice surge tank too. I sourced my electrical passthrough bulkhead connector from Radium Engineering. https://deatschwerks.com/collections/fuel-pumpshttps://www.fuelab.com/http://www.radiumauto.com/
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
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