Another lift pump lets me down.

Cant Write said:

@Kevin 007 Do you use the FRB 5 or 13? And have you found the 1/4” NPSF to be limiting at all since we have 3/8ths supply lines?

Thanks!

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I run the 13's. I run them on the frame rail usually but have run them in the engine compartment. I do see fuel pressures drop under WOT like any other pump and they usually hover around 4-6 under normal operating conditions. I have never had a fuel starvation problem. However, I run stock fueling on my stuff.

Rdnck84_03 said:

Interesting, they must have had issues supplying enough fuel pressure at the high rpm when they first switched over to efi on the 460.

James

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The first in tank fuel pumps were on the carbed 460's and supposedly some 351w carbed equipped trucks. This was called a "hot fuel handling" option. It had a low pressure pump in each tank or a single tank, with the output running up to the top of the engine with a orifice device that let a portion of the fuel go back to the tank via a return line. The rest of the fuel went into the 4bbl carb. Constantly recirculating the fuel got rid of vapor lock problems. These can be found on f250/350's with 460's starting around 1983 or so. Up to 1986 it would have a sending unit compatible with the early instrument cluster. In 1987 the 460 was still carbed, and would have the sending unit for the newer clusters

The first frame mounted pumps were on the 1985 f150's with the fuel injected 302's. They used these with a lift pump in each tank or one tank, and a "fuel reservoir" on the frame with a filter sometimes incorporated into the reservoir. This system had all these pumps because the early tanks had no baffle system. So the reservoir on the frame kept the high pressure frame mounted pump supplied with fuel at all times when the tank mounted pumps could not.

Maybe someone with some skills can adapt a Glacier Diesel belt driven pump from a Cummins to an IDI. It, basically, looks like a procon pump that gets run off the crank pulley.

gerlbaum said:

Maybe someone with some skills can adapt a Glacier Diesel belt driven pump from a Cummins to an IDI. It, basically, looks like a procon pump that gets run off the crank pulley.

Fuel Boss Lift Pumps

Extreme pump longevity is only one of the numerous benefits provided by the FUEL BOSS system. All FUEL BOSS pumps also come equipped with a 100% Viton lip seal which makes them perfect for ULSD, Bio Diesel use and Veg Oil conversions. FUEL BOSS drive systems are comprised of high strength...

www.glacierdieselpower.com

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Wow that would be awesome, it looks like the price would be awe inspiring as well.

captain720 said:

it looks like the price would be awe inspiring as well.

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That would be problem with it as well.

Im working on a high performance mechanical fuel system

hacked89 said:

Im working on a high performance mechanical fuel system

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Do tell?

Booyah45828 said:

Do tell?

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I'm all ears too! Maybe that's eyes since it's online?

It’s belt driven and similar to the GDP link.
I should have a detailed video together within a month. I’ve got quite a few sticks in the fire.

Question for you guys, if you had to give up one accessory, would you give up AC (I know this will differ depending on area of the country) or vacuum pump and have to go hydroboost? The blend door is a pretty easy thing to overcome either moving it manually when needed or temporary on small electric pump for blend door op.

I also have an idea that would require giving up nothing, but here’s another scenario I would be interested in feedback. Take a look at vendors pricing of performance electric fuel system kits. $800-$1200. You also need to remove the FSV in any significant performance setup. Is the demographic that would pay $1200 for a high performance fuel system kit going to care about losing AC or converting to hydroboost? The benefits of my kit would be, all mechanical, could feed the largest needs with no fuel drop (scales by rpm and drive ratio), nothing needed to mount on frame. Would use the factory fuel filter location and bracket for reg and filter.

Considering the (lack of) quality that seems to be common in vacuum pumps these days, I'd chose to give up the vacuum pump if I was to make the choice.

I rarely use my A/C so that would be my vote. The thought of a fully mechanical system sounds great. Honestly ,I would make whatever accommodation necessary to make that happen. Looking forward to seeing what you come up with.

Last night, really late, I replaced my mechanical fuel pump. Easy to do, if you pull the vacuum pump off to access. I also bypassed my water separator. Runs smooth. I drove it over 250 miles yesterday, it got to idling pretty rough before I replaced the fuel pump. I think my filter is restricted, gonna replace that later today.

hacked89 said:

It’s belt driven and similar to the GDP link.
I should have a detailed video together within a month. I’ve got quite a few sticks in the fire.

Question for you guys, if you had to give up one accessory, would you give up AC (I know this will differ depending on area of the country) or vacuum pump and have to go hydroboost? The blend door is a pretty easy thing to overcome either moving it manually when needed or temporary on small electric pump for blend door op.

I also have an idea that would require giving up nothing, but here’s another scenario I would be interested in feedback. Take a look at vendors pricing of performance electric fuel system kits. $800-$1200. You also need to remove the FSV in any significant performance setup. Is the demographic that would pay $1200 for a high performance fuel system kit going to care about losing AC or converting to hydroboost? The benefits of my kit would be, all mechanical, could feed the largest needs with no fuel drop (scales by rpm and drive ratio), nothing needed to mount on frame. Would use the factory fuel filter location and bracket for reg and filter.

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I'd forgo the vacuum pump, just because I think hydroboost is a superior system. A little electric unit with a small reservoir would operate the ac and cruise, so long as neither system is leaking.

I was looking at the piston style race fuel pumps, but couldn't find material used or compatibility to see if it'd work with diesel. It'd mount in place of the diaphragm style, and since most guys use big block chevy block off plates, I'd figure the pump should at least be close to fitting.

KansasIDI said:

Easy to do, if you pull the vacuum pump off to access.

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Yes. It absolutely is. It can also help to remove the ground cable while you're working there. Especially if you have an automatic transmission and still have the line holding bracket that mounts to that bolt.

I don't have working a/c but I'll prolly fix it someday. If I was gonna spend $800-$1200 on a fuel pump that provides 6psi I'd prolly be going hydroboost. But for that coin, I could put 6 facets in parallel and get 200gph!