Built 7.3 Idi Turbo fuel pump

[Clb]

Thanx all...

Wes you run the non diesel hollys without issues??

Macrobb
Can you proofread the second paragraph please?

Bri
Thanx bud.

Right now, I'm leaning twards a blue, just leary of the no diesel rating part...
I'm gunna call holley and seek wisdom.

Gunna put down a 7k road trip to alaska this summer, I do not want to be staring at the effin filter light all day!

 

[IDIoit]

Thanx all...

Wes you run the non diesel hollys without issues??

Macrobb
Can you proofread the second paragraph please?

Bri
Thanx bud.

Right now, I'm leaning twards a blue, just leary of the no diesel rating part...
I'm gunna call holley and seek wisdom.

Gunna put down a 7k road trip to alaska this summer, I do not want to be staring at the effin filter light all day!

only issue ive had with holley pumps is when I first swapped it.
I pulled the pump out of a boat I had been running for years,
installed it into the truck.
came back from a 2 week vacation, and the pump was locked up, I smacked it with the end of a screw driver and it pumped again.

I replaced it, and added a water separator before the pump, and its been golden.

 

[pelky350]

The carter 4070 seems to be the new thing recently, it flows a lot more than facet and mechical. I have one installed now and it can actually keep up with my fueling, hard to explain but everything feels more linear while accelerating now. I went through 3 mechical pumps before changing to electric which was super easy with a summit universal wiring harness, and the carter 4070 about as close to plug and play as it’s gonna be and everything was less than 100$.

 

[DrCharles]

There was a thread on here back in June 2018 and the 4070 didn't do any better or worse than the other reasonably-priced electric pumps. Not maintaining 5 psi at the filter head under WOT.

https://www.oilburners.net/threads/for-guys-with-the-carter-p4070.83122/

 

[FordGuy100]

The problem is that most of the fuel going through the IP is returned to the tank - quite a lot ends up used for lubrication and cooling of the IP.

Part of the problem of the electric pumps, is that you need to find one that can output a large number of GPH at a given pressure. Not, say, 5 PSI max, 35GPH(at zero back pressure).

Mechanical pumps run faster with higher RPM, so the size of the pump can be less. They also can produce quite a bit of force, not limited by a small amount of electrical power.

Personally, I don't see the problem with the stock mechanical pump - if one can handle a RD2-110 at full throttle and still push 3.5 PSI(with 4.5 PSI at idle), that's more than enough for any smaller IDI.
Add a primer pump if you want, after the mechanical pump, just make sure it can "flow through".

Now that aint too bad of an idea. I guess you would run it in parrallel with the stock lift pump, and T them back together before going to the fuel filter? Or electric after lift pump (can you draw fuel through an stationary lift pump?"

 

[Macrobb]

Macrobb
Can you proofread the second paragraph please?

It's exactly what I meant. Lets take this example here:
https://www.harborfreight.com/lawn-garden/pumps/16-hp-submersible-utility-pump-1600-gph-63319.html
This pump can produce 1600 GPH. It has a maximum lift of 25 ft.
However, at 25ft, it's not going to be producing 1600GPH... It's going to be near zero.

It's the same thing with fuel pumps. There's a difference between "flow at rated pressure" and "flow at zero pressure".

That holley black, on the other hand... It can produce most of it's max flow at a decent pressure:
https://www.holley.com/products/fue...carbureted_electric_fuel_pumps/parts/12-815-1
Even though it's a 140GPH pump(max), you can expect more like 120GPH.

 

[Clb]

Thanx.
It was hard to decipher your thought process there.
I get hydrodynamics of fluid distribution .

 

[Justin1574]

what year 7.3? what turbo? how are you getting 20 psi?

That's what I want to know

 

[FordGuy100]

That's what I want to know

A stock 093 will do this with a turned up pump and wastegate disconnected.

 

[Clb]

Yea but holding together???

Op did not mention any mods other than a maxed out pump, so it reads "stock"

2 years on the forum, Also he split,after only 2 more posts... soon after (november).....which reads newbie toyed around and blew it up, sold it and left???

 

[Thewespaul]

I haven’t had any issues running non-Diesel rated pumps either, remember that as far as caustic fluids gasoline and ethanol is far more difficult to deal with than diesel, so if something is rated for e85 you’re fine running a lubricant like Diesel. R&D IDIs fuel pump kits use gas rated pumps, iirc they use a Holley red and a walbro pump, and I haven’t heard of any issues with those kits

 

[Justin1574]

I thought it would only boost to about 12-15psi. What is the longevity of running that much boost though? I'd be afraid it would blue the heads off of it. Of course my truck has like 270k.

A stock 093 will do this with a turned up pump and wastegate disconnected.

 

[Clb]

Thanx wes
I am hunting the post where you reco'd a pressure reg., I am thinking a flow thru type (more accurate?), mounted close to the i.p. (Keep pressure loss down to a min.) And tee'd into the inj. Returns (as to not back feed the i.p.), Your thoughts?

Justin, i think russ said once ((offhand) 10ish psi on a stock 7.3, no cooler,stucs, ect. Was safe.
So yea 20psi???
Yikes...
But we had a guy swear he could build 400+ hp AND get 20+ mpg once (his post has cobwebs on it).
I just want a bullittproff idi (one where it minds it's own parameters) to drag my 5er around.

 

[FordGuy100]

We have come a long ways since the old school days. 20 psi is pretty inefficient on a stock charger, but it will work. Mine has been up in that realm plenty of times with no ill effects. It most certainly isn't as safe as running less boost, or with studs, etc.

 

[Justin1574]

We have come a long ways since the old school days. 20 psi is pretty inefficient on a stock charger, but it will work. Mine has been up in that realm plenty of times with no ill effects. It most certainly isn't as safe as running less boost, or with studs, etc.

Are you running a boost regulator? If so what kind?