Mid 70's C body EFI fuel tank

Spyphish

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Anyone know of a vendor that makes a baffled tank for EFI in tank pump and return line? Or a good custom tank builder? Thinking about a Holley Sniper setup for a 74 440/727 cop Monao. Thanks

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Are you looking for an in trunk fuel cell? I somehow doubt it, that would be easy, and kind of "wrong"? If you want baffles for a stock location tank, it will have to custom. May I ask why you want them? I'll admit, I do too. Mostly to calm the sloshing down. From what I understand most of the retrofit in-tank pumps don't require them due to their design. I'm also eventually going the efi route with one of my cars. I was thinking of going with the MSD unit however, due to it's compatibility/control over timing when used with the MSD distributor, of course. I would suggest you check it out if you haven't already.
 
Yes I have been on the forums and read the pitfalls and successes. Some say outside pumps get hot and fail if cavitation in hot climates (me). RFI creates problems as well so wiring is critical. It could be an expensive experiment but in this years Great Race at 9000 feet we could not climb at 50 MPH with it floored. I am after the self tuning learn stuff. I am going Holley Sniper with their dizzy and ignition. The MSD stuff on the car goes to another project. Strike one today as hours of waiting to discuss system config with Holley tech. I haven't pulled trigger yet. Jake

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This is one solution to allow using the stock tank with an external pump and eliminate cavitation. Not cheap from what I hear.

HydraMat - Holley Performance Products

You just have to modify the stock pickup/sending unit to connect it.

Fitech has a remote tank unit that mounts under the hood with the high pressure pump and return in it and the stock fuel pump transfers fuel from the main tank to fill it. I'm sure there are other companies that make a similar unit.

On my 66 New Yorker I just mounted a fuel cell in the trunk and and called it a day. Form follows function. Mine was just a conventional one with a bottom sump that I connected the external pump to but they make them with internal EFI pumps too.

Kevin
 
Thanks, getting "canie and wormie" the more I check. Then the whole computer tuning comes into play.
 
Thanks, getting "canie and wormie" the more I check. Then the whole computer tuning comes into play.

Unless there are rules against it, I think the path of least resistance for you is a fuel cell in the trunk. With the bottom sump I think the only way you could cavitate the external pump would be pulling G's on a skid pad with less than 1/4 tank. Under "normal" conditions I think you'd have to be almost out of gas. The sump on mine if I had to guess, held at least a quart and the foam kept the slosh to a minimum.

Kevin
 
When I was looking into this my plan was to buy a new tank and install a fuel pump recess in the top.

Weld in Fuel Pump Recess

This would allow you to use an in-tank pump, later sending unit and keep the original fuel fill.
 
Unless there are rules against it, I think the path of least resistance for you is a fuel cell in the trunk. With the bottom sump I think the only way you could cavitate the external pump would be pulling G's on a skid pad with less than 1/4 tank. Under "normal" conditions I think you'd have to be almost out of gas. The sump on mine if I had to guess, held at least a quart and the foam kept the slosh to a minimum.

Kevin
Not an option, required safety equipment and ice chest of PBR in trunk. Thanks
 
That's trick but need baffles.
Actually, that will work. Will cut a long side wall off the tray and turn it sideways so it will tuck under body as embed in tank where existing outlet etc is. While that square hole is open we will custom build a baffle box to tack in tank bottom. Thanks
 
I've been running a walbro 255 on the frame rail for a decade. I ruined one in the first month as it picked up junk from the tank to hard line rubber section. After replacing that hose and the pump it's been good. It's a little noisey yes, and after 4-5 hrs of running it's noisier, but still runs fine. Supplies enough fuel to feed 12psi of turbo charged 383
I do need to stay above 1/4 tank to avoid hiccups if I get froggy with it.
 
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