Regulated Return vs. Cross Connect
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Senior User
Joined: Jun 2008
Posts: 151
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From: Western WA
Regulated Return vs. Cross Connect
If all I wanted to do was to solve the #8 injector issue, and solve any trap air in the fuel rail, should I install a Regulated Return (RR) or a Cross Connect Kit (CCK)?
Truck is stock. 2000 7.3L.
I'd rather go with CCK because it cost a lot less than RR.
Truck is stock. 2000 7.3L.
I'd rather go with CCK because it cost a lot less than RR.
Go Bills !
Joined: Jan 2008
Posts: 2,778
Likes: 65
From: Buffalo, NY
I'm doing the in tank fuel mod tomorrow morning. To help with air getting in. Ford Flaw.
Then your questions will be the same questions i will be facing for my next project. Which to go with?
Subscribing here.
Then your questions will be the same questions i will be facing for my next project. Which to go with?
Subscribing here.
Post Fiend
Joined: Jun 2006
Posts: 9,714
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From: White Mnt's,New Hampshire
good move doing the in tank first...
Post Fiend
Joined: Feb 2007
Posts: 14,541
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From: Dallas-Ft. Worth
The CCK is a "poor mans" RR. The RR has an adjustable regulator, where the CCK has a fixed orifice. You can still adjust pressure by shimming the FPR though. For me, the CCK is perfect. You defintely want to do the in-tanks as already mentioned. I did the CCK first which helped some, but until you get the bubbles out of the stream in the first place, it's not a big help. The aired up fuel in the return goes right into the mixing chamber which the pump sucks back up anyway. Even after the CCK, the in-tanks made a noticeable difference in mine. Also noticed a much smoother idle with the HPX. What I mean by that is that the engine doesn't seem to "jump around" as much at idle
I think all these are must-do mods...
I think all these are must-do mods...
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Post Fiend
Joined: Jun 2006
Posts: 9,714
Likes: 2
From: White Mnt's,New Hampshire
The CCK is a "poor mans" RR. The RR has an adjustable regulator, where the CCK has a fixed orifice. You can still adjust pressure by shimming the FPR though. For me, the CCK is perfect. You defintely want to do the in-tanks as already mentioned. I did the CCK first which helped some, but until you get the bubbles out of the stream in the first place, it's not a big help. The aired up fuel in the return goes right into the mixing chamber which the pump sucks back up anyway. Even after the CCK, the in-tanks made a noticeable difference in mine. Also noticed a much smoother idle with the HPX. What I mean by that is that the engine doesn't seem to "jump around" as much at idle
I think all these are must-do mods...
I think all these are must-do mods...
$250..and the reg return also transforms the stock 1/4 inch fuel feed lines to the heads to a 3/8 feed line and feeds them both to the front or back of the heads rather then cross corner ....
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Post Fiend
Joined: Feb 2007
Posts: 14,541
Likes: 2
From: Dallas-Ft. Worth
good post Joe..i would like to add that the regulator alone is around
$250..and the reg return also transforms the stock 1/4 inch fuel feed lines to the heads to a 3/8 feed line and feeds them both to the front or back of the heads rather then cross corner ....
$250..and the reg return also transforms the stock 1/4 inch fuel feed lines to the heads to a 3/8 feed line and feeds them both to the front or back of the heads rather then cross corner ....
Post Fiend
Joined: Jun 2006
Posts: 9,714
Likes: 2
From: White Mnt's,New Hampshire
for most of us the RR is not needed..most of the time the cck will do what we are looking for...id like to find out how it works when you get your SS injectors in...i thought about the fass system as well...i also like Dan's in tank pump idea...yesterday i read a thread where Cutis used a walbro 392 pump for around 140 bucks..and he is very happy with it... https://www.ford-trucks.com/forums/7...ump-is-in.html
Robin found one on ebay for $118 to his door... we should hear from him on this in a week or 2..... some good info on it here
eBay Motors: WALBRO 255LPH External FUEL PUMP GSL392 GSL-392 Inline (item 160268556448 end time Aug-08-08 13:28:17 PDT)
Robin found one on ebay for $118 to his door... we should hear from him on this in a week or 2..... some good info on it here
eBay Motors: WALBRO 255LPH External FUEL PUMP GSL392 GSL-392 Inline (item 160268556448 end time Aug-08-08 13:28:17 PDT)
Postmaster
Joined: Mar 2008
Posts: 4,158
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From: Paramount, Ca
What is it that the stock pump does in the tank that makes it suck up so much air. Why, what do I need to do to prevent it. What part number pumps can I get?
Thread Starter
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Senior User
Joined: Jun 2008
Posts: 151
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From: Western WA
I didn't know there could be a pump in the tank. I reckon anything with an electrical current in a fuel tank would not be good.
Posting Guru
Joined: Oct 2007
Posts: 2,225
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From: Farmington, Minnesota
The stock formation of the fuel pump works on a vacum pulling fuel from the the tank rather than pushing it from the source. Therefore it sucks air into the fuel lines through the the crappy stock connections in the fuel line between the tank and pump. Migrating the pump to the tank elimates the need for fuel line mods to prevent air from entering.