BC06PSD
Hairless Cat Aficionado
Maybe I missed it somewhere in the thread, but whats the answer. I don't have a few hundred dollars to burn on an uneeded mod.
Fuel line ID Sizes.
- Thread starter PSDPlayer
- Start date
Maybe I missed it somewhere in the thread, but whats the answer. I don't have a few hundred dollars to burn on an uneeded mod.
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So, you are comfortable telling people to use the factory fuel lines (.172” according to your measurement) with almost any size injector?
I find it interesting that the fuel plunger inside of the injector is substantially larger than that the factory fuel line feeding them and you don’t feel a need to increase the supply line. The injector plunger is almost twice the size of the factory fuel line, I’m sorry is twice the size of the fuel line, which means the demand is potentially greater than the supply. That just doesn’t seem to be a good design in my book.
I find it interesting that the fuel plunger inside of the injector is substantially larger than that the factory fuel line feeding them and you don’t feel a need to increase the supply line. The injector plunger is almost twice the size of the factory fuel line, I’m sorry is twice the size of the fuel line, which means the demand is potentially greater than the supply. That just doesn’t seem to be a good design in my book.
Abrannan19
NOBAMA 09-12
you feel comfortable telling people they can run up to 190's on a stock fuel pump safely?
PSDPlayer
Captain Negativity!
Yeah. Once you remove the .020 orifice in the banjo bolt. .172" should feed a ton of fuel to the injector. .172 is 8.6 times larger than .020. What is that in percent? .040 would be 100% right? .080 would be 400%. .160 (DJ fitting would be 800%) And if the stock line is larger than that.... Golly gee. What could I ever do with that much fuel flow.
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Yeah. Once you remove the .020 orifice in the banjo bolt. .172" should feed a ton of fuel to the injector. .172 is 8.6 times larger than .020. What is that in percent? .040 would be 100% right? .080 would be 400%. .160 (DJ fitting would be 800%) And if the stock line is larger than that.... Golly gee. What could I ever do with that much fuel flow.
The plunger itself it 200% larger than the factory fuel line, which by your own measurement is bigger than DJ's.
I'm personally not comfortable trying to feed the injectors that are 200 + dollar a piece with a fuel line that is smaller than the plunger.
You can do it, that's fine. On your race motors, make sure that you only run a .172" line and not the 3/8 you have on there now.
PSDPlayer
Captain Negativity!
How much more do your lines flow when the customer doesn't change their fuel filters?
The plunger in the injector is that size to create the ratio to get the injection pressure up to 7.1 times over the high pressure system. So if the plunger diameter is .172 times 2. I'll be just fine at 50psi through .172 inches feeding the cavity in the head.
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If you go back is said"
The factory fuel pump can support injectors up to around 190cc's. If you plan on upgrading your injectors, it is strongly recommended that you have a fuel pressure gauge to monitor the fuel pressure. (Keep in mind that not all injectors flow the same. So, two different companies 190’s may actually flow quite a bit different.)
If you are seeing the pressure drop, then upgrading your fuel pump is recommended.
"
Key words/points:
Around 190cc
strongly recommended that you have a fuel pressure gauge
Not all injectors flow the same
if you are seeing the pressure drop, upgrade your fuel pump
Even in your follow up question
You say that II’s injectors may work with a factory fuel pump. So, by that, follow up question, you are agreeing with the above statement that there may be possibilities of the factory fuel pump supporting larger injectors.
So, to answer your question:
Yes I feel comfortable telling people they can run up to 190's on a stock fuel pump safely if they have a gauge to monitor their fuel pressure.
Would it be better to run a FASS or AirDog, probably. Is that a bad idea, no. Do they have to, not necessarly it all depends on their fuel pressure. Realize that by upgrading the fuel pump and not the lines, 60 psi from a factory fuel pump is the same as 60 psi out of an AirDog or FASS. You could argue the air separation but that’s another issue that we are not discussing. Do I recommend our fuel pump/system, NO. Especially not with only 190’s.
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none
Abrannan19
NOBAMA 09-12
I was merely pointing out that II sticks are small and flow very little compared to others
But, then you posted up that the stock lines aren't sufficient for stock injectors and you didn't want to risk $200 injectors
But when the warranty speculates on the aftermarket injectors "Severe injector plunger and barrel scoring due to prolonged fuel pressure loss not warrantable."
I would be adding a fass/airdog long before changing fuel lines.
BTW I would really like to see some WOT throttle runs with your 185's and the stock fuel pump, can you post up some videos of the fuel pressure gauges during this?
But, then you posted up that the stock lines aren't sufficient for stock injectors and you didn't want to risk $200 injectors
But when the warranty speculates on the aftermarket injectors "Severe injector plunger and barrel scoring due to prolonged fuel pressure loss not warrantable."
I would be adding a fass/airdog long before changing fuel lines.
BTW I would really like to see some WOT throttle runs with your 185's and the stock fuel pump, can you post up some videos of the fuel pressure gauges during this?
PSDPlayer
Captain Negativity!
The number 1 cause of fuel pressure issues is from customers not changing their fuel filters. I think thats why Ford even puts an FF on the original filter. Factory Filter not being changed means you are your own cause of failure. I would hate to see someone spend money on all the "upgraded" lines and have more failures cause they can now not afford the next several fuel filter changes.
Abrannan19
NOBAMA 09-12
so its not rotella oil WTF?!?!
PSDPlayer
Captain Negativity!
No. That's the second leading cause.
Extended Power
New member
67 liter per hour???
67 liters per hour = 17.7 US gal. or 14.7 Imp. gal.
Yes, If you have a pump that can move 180 gallons per hour at 60 psi, it will move more than a pump that is only capable of flowing 67 gallons per hour.
That's why you increase the line size...
60 Psi flow through a 1/4" line isn't even close to the flow through a 1/2" line at 60 psi...
Extended Power
New member
I don't care what you tell me the stock pump puts out.:blahblah1:
I know that you are just being you....again.
I changed from a stock pump, to an Aeromotive marine grade set-up, to a FASS 150/180, then back to the Aeromotive set-up with more changes.
I would rather have too much fuel volume, and constant pressure then not enough of either one....but hey....that's me.
You put whatever you want on your truck, and I'll put whatever I want on my truck.
If people are happy with stock....leave it alone then.
Next you might say something like: "There's no reason to go with aftermarket rims, cuz the stock ones work just as good ...."
PSDPlayer
Captain Negativity!
I like spending money on an improvement. I have aftermarket rims and tires. I just didn't understand why someone was driven to change something when the new thing was a step backwards. Me being me must be a bad thing. But if I helped someone save hundreds of dollars then I'm happy. But the stock pump does pump that amount of fuel. I'll be the first to admit that I don't sugar coat things. And it's amusing that you are lumping a fuel kit into something asthetic like wheels and tires instead of a performance Improvement like a turbocharger or stroker kit.