FRx Fuel rail crossover - Ford Powerstroke Diesel Forum
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post #1 of 40 Old 01-30-2012, 04:31 PM Thread Starter
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Question FRx Fuel rail crossover

i just saw Riffraffs FRx Fuel Rail Crossover™ and i was wondering if this is as good as a full regulated return and what benfits will i see if i install one of these on my truck? i have an edge chip (for now) intake, 4" exhuast, adrenaline HPOP, and hpx oil crossover, and a stock turbo with ATS intake housing and larger exhaust housing. thanks for any input
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post #2 of 40 Old 01-30-2012, 04:44 PM
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It's not exactly a full RR like you said, but unless you're going to be pushing a lot of power, you won't need a full RR. Mainly it'll quiet the injectors since they will have a more consistent fuel supply with air flowing out of the system.
FWIW, you don't really need a HPOXover with an Adrenaline. In fact, they advise against it.



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post #3 of 40 Old 01-31-2012, 10:09 AM
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Im putting in Stage 1s and as I'd like them to last as long as possible, I'm installing the FRx. Its inexpensive piece of mind to eliminate fuel starvation and air from damaging the #8 injector (which is why i have the stage 1s coming in the first place)

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post #4 of 40 Old 01-31-2012, 04:00 PM
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I have it, pretty good piece, and excellent customer service


2000 DRW CC 7.3
Exterior: 08 Exterior Clone, 22.5's
Engine Mods: GTP38R WW2, 5 inch exhaust,T500, 6637, TW tunes,DI Up pipes, 6.7 fuel pump fuel system.
Trans Mods: 6.0 trans cooler, JW Valve body,Billet triple disc converter.
Sound Mods: 7" flip out tv, 3-way speakers all around, 12" sub, 500 watt amp.
Misc:dieselsite coolant filter, max ac assist, BRV, IHD,gauges, CCV

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post #5 of 40 Old 01-31-2012, 04:05 PM Thread Starter
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hey thx for the advise guys
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post #6 of 40 Old 01-31-2012, 04:09 PM
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have fun getting the fuel rail plugs out.. Man what a pain in the A55 that was!!! The back one was easy, but the one on the passenger side wasn't working out real well for me. The instructions I had said to use a vice grip, I wouldn't try that first, see if you can get it with a small wrench first.


2000 DRW CC 7.3
Exterior: 08 Exterior Clone, 22.5's
Engine Mods: GTP38R WW2, 5 inch exhaust,T500, 6637, TW tunes,DI Up pipes, 6.7 fuel pump fuel system.
Trans Mods: 6.0 trans cooler, JW Valve body,Billet triple disc converter.
Sound Mods: 7" flip out tv, 3-way speakers all around, 12" sub, 500 watt amp.
Misc:dieselsite coolant filter, max ac assist, BRV, IHD,gauges, CCV

Next up power rear window
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post #7 of 40 Old 01-31-2012, 04:17 PM
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Quote:
Originally Posted by jesilvas View Post
It's not exactly a full RR like you said, but unless you're going to be pushing a lot of power, you won't need a full RR. Mainly it'll quiet the injectors since they will have a more consistent fuel supply with air flowing out of the system.
FWIW, you don't really need a HPOXover with an Adrenaline. In fact, they advise against it.
He's not talking about a oil crossover. He's talking about a fuel crossover that goes between the fuel rails in the heads. The plugs they are talking about are on the very backs of the heads. And yeah, they are fun to get to.

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post #8 of 40 Old 01-31-2012, 06:07 PM
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Quote:
Originally Posted by campbellflage View Post
I have it, pretty good piece, and excellent customer service
X2, Although I bought mine from Guzzel's
I was very pleased with the way it quieted my motor down. No more Cackle.

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post #9 of 40 Old 02-02-2012, 03:28 AM
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Originally Posted by GAS View Post
X2, Although I bought mine from Guzzel's
I was very pleased with the way it quieted my motor down. No more Cackle.
I noticed a very slight noise difference at idle, pretty much unnoticeable, after I installed my FRX. But, the HPX made a huge difference at idle. Incredible how much of a difference it made.
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post #10 of 40 Old 02-02-2012, 12:08 PM
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Quote:
Originally Posted by bullet450 View Post
i just saw Riffraffs FRx Fuel Rail Crossover™ and i was wondering if this is as good as a full regulated return and what benfits will i see if i install one of these on my truck? i have an edge chip (for now) intake, 4" exhuast, adrenaline HPOP, and hpx oil crossover, and a stock turbo with ATS intake housing and larger exhaust housing. thanks for any input
Quote:
Originally Posted by HVAC SuperTech View Post
He's not talking about a oil crossover. He's talking about a fuel crossover that goes between the fuel rails in the heads. The plugs they are talking about are on the very backs of the heads. And yeah, they are fun to get to.

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I believe he is talking about hpx in the OP's original post.

While your at it..this should help get some more air out...

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2002 F-350 4X4 ECLB 7.3 4R100 6637 filter w/ RiffRaff cover, 08 diff cover, 203* T-stat, HPX, Stancor Relay, 6.0 trans cooler, Zone leveling kit, 8'6" Western Ultramount
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