kyle43335
In the Brig (Banned)
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This is at 3600 RPM, 1000 shot.. Max P/W
Let the responses come "flowing" in..
whats the max p/w and icp pressure,that these were tested at?
This is at 3600 RPM, 1000 shot.. Max P/W
Let the responses come "flowing" in..
This is at 3600 RPM, 1000 shot.. Max P/W
Let the responses come "flowing" in..
(volume) cc's has nothing to do with nozzle size.
(FLOW RATE) cc's PER TIME has everything to do with nozzle size.
for those not familiar with a HEUI injector...
the (7.3L & 6.0L HEUI) injs are basically a syringe...a tube of caulk, if you will...
regardless of how large a HOLE you cut in the end of the tube of caulk...it's still only 24 ounces...
the size of the hole (nozzle size), the force on the plunger(ICP pressure) determines how quickly that volume will empty...or not empty...in a given time (injector pulse width).
I'm not at all arguing that a larger nozzle will not increase the flow RATE of an injector...but for someone to say that changing nozzles somehow affects the total displacement (max cc rating) of an injector is 100% incorrect.
I could weld closed 5 holes on an injector nozzle...leaving only one hole to flow on a "200cc" injector...
it's still a 200cc injector...but it would just take a long time to empty
cutting the nozzle completely OFF of the injector (think single 1/4" orifice, LOL) also would not change the internal maximum displacement of the injector...it would still only flow 200cc's...it would just be flowing it at a fraction of the TIME of the 'plugged' nozzle...
but I could set up a flowbench to flow these injectors (one tiny hole...one HUGE hole) side by side in a flowbench...and I could make them flow exaccccctlly the same amount of fuel in 1000 shots...but the requested DURATION (pulsewidth) would have to be long enough for the plugged up nozzle to empty.< think 7-8ms LOL...
cc ratiung is an injs maximum capacity
nozzle determines the rate.
it's that simple.
It's a video. Click on it....
(volume) cc's has nothing to do with nozzle size.
(FLOW RATE) cc's PER TIME has everything to do with nozzle size.
for those not familiar with a HEUI injector...
the (7.3L & 6.0L HEUI) injs are basically a syringe...a tube of caulk, if you will...
regardless of how large a HOLE you cut in the end of the tube of caulk...it's still only 24 ounces...
the size of the hole (nozzle size), the force on the plunger(ICP pressure) determines how quickly that volume will empty...or not empty...in a given time (injector pulse width).
I'm not at all arguing that a larger nozzle will not increase the flow RATE of an injector...but for someone to say that changing nozzles somehow affects the total displacement (max cc rating) of an injector is 100% incorrect.
I could weld closed 5 holes on an injector nozzle...leaving only one hole to flow on a "200cc" injector...
it's still a 200cc injector...but it would just take a long time to empty
cutting the nozzle completely OFF of the injector (think single 1/4" orifice, LOL) also would not change the internal maximum displacement of the injector...it would still only flow 200cc's...it would just be flowing it at a fraction of the TIME of the 'plugged' nozzle...
but I could set up a flowbench to flow these injectors (one tiny hole...one HUGE hole) side by side in a flowbench...and I could make them flow exaccccctlly the same amount of fuel in 1000 shots...but the requested DURATION (pulsewidth) would have to be long enough for the plugged up nozzle to empty.< think 7-8ms LOL...
cc rating is an injs maximum capacity
nozzle determines the rate.
it's that simple.
Thanks for clearing that up! We were not planning on getting that detailed. All we are trying to illustrate is that at max pw(2.4) for a 6.0 using a 75% nozzle on a 175cc displacment injector allows you to flow more fuel than if you were to use a stock nozzle on the same 175cc injector. We have had a lot of questions from customers wondering why we will not use a stock nozzle on our performance injectors like some other companies choose to use! That was the purpose of the video...Hope it helps out!:thumbup:
They will both flow 175 cc's of fuel.
The 50% nozzle with just empty faster.
(volume) cc's has nothing to do with nozzle size.
(FLOW RATE) cc's PER TIME has everything to do with nozzle size.
for those not familiar with a HEUI injector...
the (7.3L & 6.0L HEUI) injs are basically a syringe...a tube of caulk, if you will...
regardless of how large a HOLE you cut in the end of the tube of caulk...it's still only 24 ounces...
the size of the hole (nozzle size), the force on the plunger(ICP pressure) determines how quickly that volume will empty...or not empty...in a given time (injector pulse width).
I'm not at all arguing that a larger nozzle will not increase the flow RATE of an injector...but for someone to say that changing nozzles somehow affects the total displacement (max cc rating) of an injector is 100% incorrect.
I could weld closed 5 holes on an injector nozzle...leaving only one hole to flow on a "200cc" injector...
it's still a 200cc injector...but it would just take a long time to empty
cutting the nozzle completely OFF of the injector (think single 1/4" orifice, LOL) also would not change the internal maximum displacement of the injector...it would still only flow 200cc's...it would just be flowing it at a fraction of the TIME of the 'plugged' nozzle...
but I could set up a flowbench to flow these injectors (one tiny hole...one HUGE hole) side by side in a flowbench...and I could make them flow exaccccctlly the same amount of fuel in 1000 shots...but the requested DURATION (pulsewidth) would have to be long enough for the plugged up nozzle to empty.< think 7-8ms LOL...
cc rating is an injs maximum capacity
nozzle determines the rate.
it's that simple.
This is at 3600 RPM, 1000 shot.. Max P/W
Let the responses come "flowing" in..
So 2.46ms is the max pulse width in the ECM?This is also at 2.46ms p/w for those questioning
Don't get me wrong, it's no brainer that the larger nozzled injector will empty quicker given the same p/w. I think it would be usefull info to know where the crossover point is in relation to injector size and p/w.
Say your tune needs a p/w of 1.8 ms @ 4000 RPM for an optimal injection event (made up numbers). What % of nozzle does the 175cc need to empty in that time. What % nozzle would a 190cc to empty in that time? What about a 205cc, and so on. See what I'm getting at?
The way I understand it, the optimal p/w is the optimal p/w regardless of injector size. The injection event needs to happen in the optimal desired window of crank angle regardless of injector size. What we need to know is what each partiular size of injector needs for a nozzle size in order to empty in that optimal window and still maintain good atomazation.
Cant afford it, dont mod your truck :blitzed:
Neither am I. I would wager that the top tuners (Eric, Matt, Vivian, RCD, etc.) know what this number is though.Makes sense that in order to get the highest amount of power with the least amount of cylinder pressure that there would be an optimal PW. I am not sure how to go about figuring that out.
no problem...
I guess I'm a little unclear on the 'max pulsewidth of 2.4ms'..is that the limit of the flow bench you were using?
I wouldn't call that "max PW"...I would simply call that 2.4ms pulsewidth....duration.
but nice to injectors being tested!