Fuel system upgrade questions

Preston_leslie · Mar 20, 2016

Looking into doing my fuel system upgrades to get them out of the way before injectors and turbo but there is a lot to take in and figure out. End goal is 190cc probably. But I see regulated returns, fuel bowl ******s, fuel pumps x? Of gpm, fuel tank sump, new fuel lines, blah, blah, blah. What all is needed and not needed. Where would I need to be even if I took injectors another step about 190's

kwelch08 · Mar 20, 2016

First few questions would be what nozzles, turbo, and do you plan to tow?

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Preston_leslie · Mar 21, 2016

End goal is around 600-650 hp and still be able to tow heavy I pull skid steers often

6.0 Tech · Mar 21, 2016

A regulated return and fuel pump are very good ideas with aftermarket, larger njectors. With the regilated return you dont have to remove yhe fuel bowl, that is more for trying to clean up the clutte red engine compartment. The fuel lab pumps, while expensive, seem ato be the way to go. I ahve also heard good things about puttng 6.7 pumps on. My air dog is starting to drop pressure and has only been on about a year. Its only dropping to 58 or so, but aint holding steady like it should. I have been reading this is common with the air dogs and fass systems.

A sump will help with the quarter tank fuel supply issues with the aftermarket pumps, but if you intend on using the truck with the factory skid plate, you will need to shim the skid pkate down to clear. The one hole sumps seem to have less issue than the ones you have to drill a bunch of bolt holes for, as those tend to leak if you dont get it perfect, and are a pain in the ass to drill all the holes.

Merc82 · Mar 21, 2016

190/30s here too. Run a sump, feeding a 6.7 pump, which feeds the back of the heads to a Fuelab regulator and returns via a 8AN fitting on top of the tank. Holds up just fine.

Strictly Diesel · Mar 21, 2016

The biggest issue with keeping the bowl and running a 6.7L pump is that you then have to buy a 6.7L primary fuel filter and you still have to buy the 6.0L "fuel filter kit" because you need the 6.0L secondary filter.

Our "Dual Bosch" delivery kit coupled with our "Fuel Bowl ******" regulated return gives you the reliability of OE pumps with the ease of inexpensive "spin-on" filters. You also have "pump redundancy" in the event of a pump failure...you may not have full power with big injectors, but you have a running pump and the ability to limp the truck to wherever you need to. If "reliability" is a concern, it's a pretty tough combination to beat!

saminga · Mar 22, 2016

Reasonably priced regulated return

Does anyone carry one that is priced reasonably?

Zmann · Mar 22, 2016

yes the vendor above your post ;-)

cRaZy8 · Mar 22, 2016

FWIW I am running 175/30's, sumped tank, twin Racor filters, 6.0l & 6.4l pumps, 1/2" feeding front of heads, regulated rear of heads, 3/8" back to tank, and I hold 58psi rock solid on a full fuel TSD tune.

And my filter changes only cost $40 for a giant 2 micron and 10 micron filters with water separation. I built the whole system for about $1000 including pumps.

saminga · Mar 23, 2016

there you go!

I just want the regulated return and it'll be 650-700.

SLYTAPEX · Mar 27, 2016

Strictly Diesel said:
The biggest issue with keeping the bowl and running a 6.7L pump is that you then have to buy a 6.7L primary fuel filter and you still have to buy the 6.0L "fuel filter kit" because you need the 6.0L secondary filter.

Our "Dual Bosch" delivery kit coupled with our "Fuel Bowl ******" regulated return gives you the reliability of OE pumps with the ease of inexpensive "spin-on" filters. You also have "pump redundancy" in the event of a pump failure...you may not have full power with big injectors, but you have a running pump and the ability to limp the truck to wherever you need to. If "reliability" is a concern, it's a pretty tough combination to beat!

Ok, newb. Question because I don't fully understand the fuel system. I got an aeromotive lift pump with all lines etc. now would I use your fuel pumps in conjunction with the aeromotive system? I'm thinking that's the system because even with the new lift pump I still have the factory HFCM. I would like a more robust replacement but the guy I worked with at aeromotive said that I won't need it at all. Injectors are 205/75's but will be 285's in the near future.

04cr450 · Mar 27, 2016

i have a beans sump, 6.4 pump (as a pusher pump) to a stock 6.0 pump, all 1/2" and 3/8" fuel supply and return lines, regulated return. holds fuel pressure at 60 psi with no issues. 205/75's

SLYTAPEX · Mar 27, 2016

Gotcha. That's good to know!

Strictly Diesel · Mar 28, 2016

SLYTAPEX said:
Ok, newb. Question because I don't fully understand the fuel system. I got an aeromotive lift pump with all lines etc. now would I use your fuel pumps in conjunction with the aeromotive system? I'm thinking that's the system because even with the new lift pump I still have the factory HFCM. I would like a more robust replacement but the guy I worked with at aeromotive said that I won't need it at all. Injectors are 205/75's but will be 285's in the near future.

A high volume low pressure lift pump feeding a stock pump is not a bad setup, but I would think it should support your 205s with minimal pressure drop...but once you go to the 285s I would anticipate a problem. The stock pump can only move so much fuel. I would anticipate it becoming a bottleneck in your system when you move the the larger injectors.

SLYTAPEX · Mar 28, 2016

Strictly Diesel said:
A high volume low pressure lift pump feeding a stock pump is not a bad setup, but I would think it should support your 205s with minimal pressure drop...but once you go to the 285s I would anticipate a problem. The stock pump can only move so much fuel. I would anticipate it becoming a bottleneck in your system when you move the the larger injectors.

So am I correct to assume that a set up like the Bosch or fuelab systems that you have would then be a direct replacement for the HFCM?

valvetick · Mar 28, 2016

I have a Frankenstein set up as well. Larger pickup tube and running stock pick up tube as the return with larger lines a 6.4 lift pump in front of the 6.0 pump and Driven diesel regulated return. Held 50-55 psi with 190/75 on a full fuel tune. Now I have 190/30 and it doesn't drop down below 60.

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Strictly Diesel · Mar 29, 2016

SLYTAPEX said:
So am I correct to assume that a set up like the Bosch or fuelab systems that you have would then be a direct replacement for the HFCM?

Yes, our race delivery systems would replace the stock pump and work with either of our regulated returns as well as any other RR out there (though I can't guarantee all of the needed parts are there if using an RR kit other than ours).