Aeration

[Not Jobless]

Look at your fuel rail. The fuel goes into and out of it on the same spot. There's only like 2 inches that is through circulated. The end injectors are a dead givaway. There is no way the fuel is circulated past them.....

It's what you can't see through all the wiring and such behind the intake plenum and behind the distributor.

The two fuel rails are connected together front and back by a tube, this forms a "circle" which is fed by the fuel pump. The fuel regulator connects this "circle" to the return line to the tank.

Fuel is flowing through the rails constantly, it doesn't dead end anywhere.

 

[Binder]

It's what you can't see through all the wiring and such behind the intake plenum and behind the distributor.

The two fuel rails are connected together front and back by a tube, this forms a "circle" which is fed by the fuel pump. The fuel regulator connects this "circle" to the return line to the tank.

Fuel is flowing through the rails constantly, it doesn't dead end anywhere.

That's not how I remember it but that doesn't really matter. It is what it is, you're not going to change it.
Still needs to be cooler IMHO.

 

[CrustyJeep]

Heat issues with the fuel just don't make any sense, if the circulation is good. Whatever cars those engines came out of, most likely would have driven around in that area just fine, with full inner fenders and insulated hoods and ****.

 

[jeepmauler]

My fuel cel was HOT,the chassis tube my fuel lines run along was over 200*,the fuel pump was too hot to touch,etc. etc. etc....i'm addressing these probs but in a car where ALL the operating systems are piled on top of each other....once the heat problem started to build it just "snowballed".

 

[Binder]

Heat issues with the fuel just don't make any sense, if the circulation is good. Whatever cars those engines came out of, most likely would have driven around in that area just fine, with full inner fenders and insulated hoods and ****.

In a stock rig the fuel tank is a cooler. Maulers tank is a heater. I think the heat is effecting your fuel pump too but you would need to install a pressure gage and heat up the system to check this.

 

[Totalled]

Look at your fuel rail. The fuel goes into and out of it on the same spot. There's only like 2 inches that is through circulated. The end injectors are a dead givaway. There is no way the fuel is circulated past them.....

What you talkin bout willis?

200?!?!

Is your fuel system right by the exhaust? :eeek:

 

[Not Jobless]

That's not how I remember it but that doesn't really matter. It is what it is, you're not going to change it.
Still needs to be cooler IMHO.

I've been looking at it for 7 years, I know how it is and a cooler will be added :awesomework:

 

[Not Jobless]

Is your fuel system right by the exhaust? :eeek:

In Maulers rig everything is next to everything...he crammed 10lbs of **** into a 5lb bag and then found room for the kitchen sink.

 

[jeepmauler]

200?!?!

Is your fuel system right by the exhaust? :eeek:

maybe :redneck:

my car is ten pounds of **** in a 5 pound box!! My chassis is 42" wide at it's widest point and has two seats,a V-8,A full size radiator,9+gallons of fuel,3" exhaust,A trunk box thingy,legroom and mutha ****in pink ass flames nigga!!

shits tight YO!! just gotta work out the kinks:redneck:

EDIT: the answer to your question is....the 200+* is due to the radiator being in the rear of the car and the coolant runs through the chassis.In a small(2ft) section the fuel lines run along the chassis tube carriing the hot coolant.A person would have to see the car with it's floors out to realize how little room there is and how we maximized space and put ALOT of thought into the routing/plumbing of everything......live and learn....I'm ALWAYS tweaking on the car and redoing stuff....this is just another chapter:beer:

 

[Nuzzy]

EDIT: the answer to your question is....the 200+* is due to the radiator being in the rear of the car and the coolant runs through the chassis.In a small(2ft) section the fuel lines run along the chassis tube carriing the hot coolant.

Just buy an older air cooled porsche motor. No pesky rad and coolant to heat yer chassis. Duh

 

[Totalled]

maybe :redneck:

my car is ten pounds of **** in a 5 pound box!! My chassis is 42" wide at it's widest point and has two seats,a V-8,A full size radiator,9+gallons of fuel,3" exhaust,A trunk box thingy,legroom and mutha ****in pink ass flames nigga!!

shits tight YO!! just gotta work out the kinks:redneck:

EDIT: the answer to your question is....the 200+* is due to the radiator being in the rear of the car and the coolant runs through the chassis.In a small(2ft) section the fuel lines run along the chassis tube carriing the hot coolant.A person would have to see the car with it's floors out to realize how little room there is and how we maximized space and put ALOT of thought into the routing/plumbing of everything......live and learn....I'm ALWAYS tweaking on the car and redoing stuff....this is just another chapter:beer:

I understand. From the pics I've seen your rig is quite

Maybe it's time to wrap the fuel system up some?

Clicky

 

[jeepmauler]

I understand. From the pics I've seen your rig is quite

Maybe it's time to wrap the fuel system up some?

Clicky

Thanks for the compliment:beer:

Funny...the wife and I went into Jim Greens yesterday after work and bought twenty feet of the stuff in yer link....cost a fourtune "retail"...oh well.I buy most stuff through Summit or Jegs but still like to through $ at the local retailers FWIW.

 

[CrustyJeep]

Planning to put a tranny cooler or some such in the fuel line somewhere?

 

[Not Jobless]

Planning to put a tranny cooler or some such in the fuel line somewhere?

I'm going to on mine...don't know where'd we put one on Maulers?

 

[jeepmauler]

I'm going to on mine...don't know where'd we put one on Maulers?

Don't you worry your pretty lil'self.....i got it all figured out:;

 

[crash2]

How hot does gasoline have to get before aeration occurs?

This is in a pressurized EFI system running about 36psi.

If its sealed--never..

If your having fuel issues--I can't see heat being a factor. And if your gettin air bubles in the fuel ( Aeration) its typicly from the fuel pressure point....

I would call daruis--I am sure he can answer this question easily...

 

[Binder]

If its sealed--never..

If your having fuel issues--I can't see heat being a factor.

I'm no Darius but...
:scratchhead: Mike it's just like vapor lock only the fuel is moving because there is a return line...........

 

[jeepmauler]

If its sealed--never..

If your having fuel issues--I can't see heat being a factor. And if your gettin air bubles in the fuel ( Aeration) its typicly from the fuel pressure point..

So you are saying my fuel pump is making my fuel fluffy!!!!! that son of a bitch.....I'm tossin that thing in the trash!! J/K.

 

[crash2]

I'm no Darius but...
:scratchhead: Mike it's just like vapor lock only the fuel is moving because there is a return line...........

This is something thats always confused me. On OEM vehicles I have never seen a problem due to "vapor" lock--and this area is what I do alot.

This also goes for a single/dual line setup (being a single you would think it would be more prone to a vapor lock issue due to lack of fuel moving).

Now I dunno if it has to do with how the lines are designed or not--but If there is air getting introduced into the system--I can't see heat/boiling of the fuel being a problem--and my rig(setup like a # of others) has been in 100+ temps and never had an issue except with there was an actual pump failure.

Now I can see a pump being the root cause because if the vanes or rotors do n ot seat against the edge/internals of the pump you get Aeration of the fuel. And once that air is introduced into the system--it can expand causing a vapor lock...

 

[CrustyJeep]

Now I can see a pump being the root cause because if the vanes or rotors do n ot seat against the edge/internals of the pump you get Aeration of the fuel. And once that air is introduced into the system--it can expand causing a vapor lock...

I was thinking along those lines. It wouldn't be aeration, but cavitation; where would the air come from? If the fuel is warm and the pump agitates it a lot, it could literally cause a boiling type condition, even below the actual boiling point. If the pump is "too hot to touch", well, sounds like it could be a problem. Once you agitate the fuel into a vapor state, it won't recondense quickly.