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94Blazer

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Reply with quote  #31 

Like I said , I see what you are saying. You would still have to plumb it the way I have it in the picture. How does the pump bypass work with out a vac style regulator? Does this engine have some sort of fuel pressure sensor?


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Bruce

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Reply with quote  #32 
Quote:
Originally Posted by 94Blazer

Like I said , I see what you are saying. You would still have to plumb it the way I have it in the picture.


Not if you use one of the pumps I posted.

As far as sensors it is probably a pressure relief valve in the sending unit. Like a lot of duel tank systems on trucks use.
94Blazer

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Reply with quote  #33 

Mark Swaboda has the regulator I have been describing (homemade) and hasnt had any issues with it. Of course he has the O2 tricked on it so ..... But it has fine throttle response 


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Bruce

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Reply with quote  #34 
He has a ball valve for a regulator?
94Blazer

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Reply with quote  #35 

Tee style pressure valve hooked into the return of a common rail dodge fuel system with no vac line to increase fuel pressure at WOT. I see why the ball style valve wont work from a flow stand point. I believe he has it set on the rich side at idle .


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Bruce

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Reply with quote  #36 
What was the pressure valve he is using designed for? Just curious if it is an air pressure regulator or what.
94Blazer

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Reply with quote  #37 
Yeah I think its an air pressure valve of some sort. Hes got a air fuel ratio meter on it and dialed it in with that

In short I guess he set his fuel pressure to where it ran right instead of what the engine called for. Anyway , it could be done with the 129 dollar 1 line reg(easier) you posted or with the air pressure reg(cheaper).

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Bruce

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Reply with quote  #38 
Cool, I would have been afraid that it would start leaking. But if it works it's cheaper than the ones from summit and probably works the same way.
94Blazer

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Reply with quote  #39 

When I rebuilt the reg on my junk , the rubber diaphram didnt look like anything special as far as the way it was made.


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Mdj

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Reply with quote  #40 
The in tank regulator does have a return it is built into the complete unit and spits it right back into the tank. Brent is right on target, the 2000 4.0 fuel filter has a regulator with a return built in (29.00$)that's twenty nine dollars . It has a rubber mounted brackit that comes with it. This takes care of filter,regulator,and mount all for twenty nine dollars. Thanks Brent good call.
Bruce

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Reply with quote  #41 
They look like this, don't they.



Or are yall talking about something else

94Blazer

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Reply with quote  #42 

Gotta have a line inside a line with that set up , no?


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Bruce

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Reply with quote  #43 
Yeah, but that must not be what they are talking about, cause it's $100
Mdj

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Reply with quote  #44 
That's the in tank unit,it is mounted on top of the pump/sending unit the return outlet is in the tank,no line needed. What I got looks like a inline filter except on the inlet side there is also a return. You can't even tell there is a regulator in it. It is not adjustable but it is designed for same engine and fuel inj. system that I am installing in the cj.
Brent

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Reply with quote  #45 
this is the Grand Cherokee unit:

Should keep ya right at 48 psi



or if ya wanted a bit more pressure, the 99-04 Corvette has the same style filter, but it bumps pressure up to 58 psi ( we use these on LS swaps at the shop)
the filter (Napa P/N 3737) about $46.00 is on the bottom of the pic , next to it is a double bead fuel line (dorman # 800-155) that is needed to fit into the quick release fitting on the reg. it is 12" long and has a bead on each end so we just cut it down & only use one side. it was about $12.00
:



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