[quote=RobbMc]Another option is our PowerSurge. The only drawback is that it requires a 1/4" return line back to the stock tank. Some cars came from the factory with a 1/4" return line but some didn't.

RobbMc, I'm curious how the power surge system would work when installing a gen 3 hemi in a 72 Challenger.
I don't have a fuel system installed other than a stock tank.
The sending unit has a 3/8 line with a 1/4 return so good to go there.
There is no fuel pump on the hemi or in the tank.
I am going to have to do something. Either one of these new tanks for EFI or maybe your system.

The RobbMcC unit looks like a mechanic built a coffee mug.

R.

Had anyone had good luck with either the Tanks Inc. EFI fuel tank or the Spectra EFI fuel tank such as here:

Spectra Cuda EFI Fuel Tank

Just wondering if these work well when there's 1/4 tank of fuel -- I mean, does it starve the fuel pump at an unacceptable level, or does each one work well?

The front mounted sump solves some problems, I personally don't see a great problem with high pressure fuel lines running, correctly placed, front to back. Nearly every modern car has this set-up.

What I don't like is, with our older cars, with little designed in crush zones, the mounting of the sump system, that also has HIGH pressure, and more of concern to me, a quart plus of fuel, located basically where ever space allows, with little concern to accident impact intrusion, etc. The difference being, all this electrical hardware and fuel quantity, which does not exist in a rear fed High pressure system is now in the engine compartment, probably in front of the engine, with a lot of hot engine parts nearby. It is not a very forgiving location, and still being fed by a rear mounted low pressure pump rated likely at a slightly higher gpm flow rate then the sump pump.
It would be the location and mounting lack of concern that gets my attention. It is a solution that I would consider, and aim one of the in car extinguisher fire nozzles at.

I have the RobbMC Powersurge on my 71 RR and so far I like it. I have converted dozens of older cars over from carb to EFI and in most cases I modified a new stock type tank over to EFI with a intank pump. They have all worked fine for the most part but a few have had issues with fuel starvation issues in turns with less than a half tank. The traditional rear facing sump with an external pump works great but I hate seeing all the plumbing from the rear of the car. I decided to try the Powersurge set because there wont be any issues with fuel slosh or starvation at any fuel level and the ease of installation. I just got the car together and running a short time ago but I should be drving it a good bit in the next few weeks and I can report on how the Powersurge is working.

No one has a Tanks EFI tank in a Cuda or Challenger?

If anyone has, I am curious if there are fuel starvation issues at a quarter of a tank of fuel.

Thanks,

Mark

Not yet. Have some more plumbing items to get but I hope to be installing in three weeks or so.
I am not sure why there would be fuel starvation. The sock for the fuel pump is nearly flush with the bottom of the tank baffle. I have had the tank dry fitted with the sender and the pump. Will be doing clearance tests with the sender boom and float as they are close to the pump. will have those done this week.
Craig

Again, I'm just curious what the real world experience will be with these Tanks Inc. EFI tanks and fuel starvation at low fuel levels. I know the manufacturer will tell me that these are the best thing you can ever purchase --- I would rather know from the guy who has one with experience with low fuel levels telling me that the fuel baffles work as advertised. This means more to me than what the manufacturer would tell me.

Yes, I've seen the interior of these Tanks Inc. EFI fuel tanks and they look like they would work, I'm just wanting to know if they work as advertised.

I look forward to hear how you like your Tanks Inc. EFI tank -- I'm assuming that's the one that you've commented on above?

Thank you,

Mark

Yes it is a Tanks, Inc

Any more info on this? I saw the Spectra tank being offered on EBay by tomsclassics advertising 55-85 psi but no gph rating or description of the pump used. I guess the easy answer is to contact and ask but I'd rather hear it from a member with first hand knowledge...I know there are Walbro knockoffs offered on many Chinese sites and I'd guess that's probably what's being used.

I'd go with Aeromotive...

I ordered a Spectra Performance CR9CFI Fuel tank ('69 Coronet) with internal pump from Amazon ($366.02) to try out.

It looks pretty nice. Made In Canada.
The Fuel Pump that it comes with is a Walbro (USA) GSS342, 255 lph pump which should be good for 500+ HP?
There is a tub type baffle/sump in the tank that the pump sits in.

Thanks for the first hand info 451Mopar! It's greatly appreciated. I will take that to the bank and feel good about ordering one myself. Thank you again for sharing your experience!

I was looking at a Tanks Inc one, but they are not out yet. I like the separate sender unit from the pump.
On the Spectra tank, the pump and sender are combined and it was a pain to remove it from the tank. Only reason I removed it was to see what pump was used and how it was baffled. I forgot to take pictures, but it looked decent, so I will just install it and try it out. I'll post updates after installing the tank.

One thing with the spectra setup, the pressure and return lines are 3/8" supply, 5/15" return, and they are the regular style where you push a fuel hose over the connector and tighten it with a hose clamp. I guess it will be OK with the higher fuel pressures? I'll find out.
I did buy hose to -6 AN adaptors so I will just use a short length of EFI barricade (Gates) fuel line from the tank to the adaptor, than connect my existing -6 AN fuel lines.

More good info... thanks. I too was looking at the Tanks, Inc. model but the e body version is around $200 more than the Spectra tank. From the info you've provided it seems the Spectra is tough to beat. Thanks again for sharing your experience and knowledge...

Depends on the vehicle. For E body, the Tanks, Inc is about $40 more. I went that route as I did not know what pump Spectra was using and there were no tanks in inventory. Now they are in stock and I know they are using Warbro pump, I would just as easily bought the Spectra.
Craig

With the pump, the Tanks inc one goes for around $550 plus shipping for a Cuda... the spectra tank comes in at $342 shipped from Rock auto ...a big price difference...

What sort of HP will the pump in the Spectra support? The Tanks unit can be purchased with different pumps to support different HP levels.

At stock voltages, I think it can do 550 HP from what I have read. Some people use a voltage booster to get more?

I removed the sender/pump unit to try and swap in the 450 LPH welbro pump, but the 450 pump is larger in diameter at the bottom and does not fit the bracket for the 255 lph pump, so I decided to just use the 255 lph pump and see how it works. Hopefully I can get the tank installed this weekend and see how it works.

I have been watching this thread for another reason. I am building a 64 Savoy wagon thats getting a 5.7 Hemi and Nag-1 trans. The gas tank rests vertcally in the left quarter panel. I don't see any way to add an in-tank pump, so I have to have an external high pressure pump. Relocating the gas tank is out of the question.