Install an electric turbocharger?
#4
#5
Not picking on anyone, but these things are a joke to everyone in the performance world.
At wide open throttle (WOT) your 4.0 will be sucking more air than that thing, or any electric supercharger can pump / blow.
It will reduce power by restricting airflow at anything above 1/3 throttle. Don't do it.
An electric leaf blower running off 120vac... now that might work.
At wide open throttle (WOT) your 4.0 will be sucking more air than that thing, or any electric supercharger can pump / blow.
It will reduce power by restricting airflow at anything above 1/3 throttle. Don't do it.
An electric leaf blower running off 120vac... now that might work.
#9
Last edited by StrangerRanger; 10-09-2009 at 07:42 PM.
#10
the leaf blowers work, i've seen one car at the track with 4 gas leaf blowers, worked quite suprisingly...
but as for this thing you posted... here's what we've got... it flows 500 cfm so 500 cubic foot = 14 158.423 296 liters so it will push 14,158 liters every minute. if you have a 4L motor (like i do) it idles at 800rpm, being that it's a 4 stroke, it needs 2L of air every rotation, so at an idle it takes 1600 liters of air per minute, lets scale that up to say... 3000 rpm, a normal shift point for lots of people you are at 6000 liters per minute, scale it up a little more, to redline, 6200 rpm, the redline is 12,400 liters per minute needed
working the numbers out, this would give you a little more power at the top end, and being that the fan speed would be constant (if it's running full out all the time) the less rpm you have, the more of a boost it would give you...
even though the numbers DO say that it would work, the 500 cfm that it flows is under optimum conditions... so any restriction would slow that down, including the air that is being pushed into the engine, the number that the don't give is the pressure, (pounds of boost) i would think that this would be somewhere around 1 psi... which if you know anything about turbo or super chargers, any respectable system starts at around 10 psi, even a mild street turbo to give you a little more boost for passing would be minimum 6psi... i think the mustang SVO was running 13 from the factory...
not to mention that if you put this on, you will be messing your idle speed, and vacuum system, everything that runs on vacuum, like for instance, your heater controls
but as for this thing you posted... here's what we've got... it flows 500 cfm so 500 cubic foot = 14 158.423 296 liters so it will push 14,158 liters every minute. if you have a 4L motor (like i do) it idles at 800rpm, being that it's a 4 stroke, it needs 2L of air every rotation, so at an idle it takes 1600 liters of air per minute, lets scale that up to say... 3000 rpm, a normal shift point for lots of people you are at 6000 liters per minute, scale it up a little more, to redline, 6200 rpm, the redline is 12,400 liters per minute needed
working the numbers out, this would give you a little more power at the top end, and being that the fan speed would be constant (if it's running full out all the time) the less rpm you have, the more of a boost it would give you...
even though the numbers DO say that it would work, the 500 cfm that it flows is under optimum conditions... so any restriction would slow that down, including the air that is being pushed into the engine, the number that the don't give is the pressure, (pounds of boost) i would think that this would be somewhere around 1 psi... which if you know anything about turbo or super chargers, any respectable system starts at around 10 psi, even a mild street turbo to give you a little more boost for passing would be minimum 6psi... i think the mustang SVO was running 13 from the factory...
not to mention that if you put this on, you will be messing your idle speed, and vacuum system, everything that runs on vacuum, like for instance, your heater controls
Last edited by --weezl--; 10-09-2009 at 10:32 PM.
#11
Thanks for the numbers James Luvspu...hey, I do too!
Oh I think it is potent enough for my 4.0, and I like the way it will monitor the engine load and vary the blower speed to match. I'm not sure it would affect the vaccuum system all that much. After all, you still have a fully functional system at full throttle, so what's the diff?
Maybe you could all send me $5 and once I get $680, I'll try it out in the name of science.
Oh I think it is potent enough for my 4.0, and I like the way it will monitor the engine load and vary the blower speed to match. I'm not sure it would affect the vaccuum system all that much. After all, you still have a fully functional system at full throttle, so what's the diff?
Maybe you could all send me $5 and once I get $680, I'll try it out in the name of science.
#13
And anyone who truly knows boosting and how to boost cars knows that its not the boost that matters, but the cfm the turbo produces. A small turbo can produce 20 psi, but its most effective at 12 when the cfm is higher. Talk to anyone who had some dyno time and there is a point in every boost situation where the turbo or supercharger looses its efficiency. When a turbo car is sitting at idle the cfm from the turbo is more than the intake vacuum of the engine. So its always ahead of the engine and that grows exponentially with rpm.
The problem with this device is that it will loose its efficiency almost immediately. It only has a very very small margin of gain over the engine intake volume at anything above idle. So its a little pointless... I would expect to see the same gains (if any) that you would get from a throttle body spacer.
You want more power? Put the $685 towards an exhaust system with high flow cats, a K&N intake, and a tune.
The problem with this device is that it will loose its efficiency almost immediately. It only has a very very small margin of gain over the engine intake volume at anything above idle. So its a little pointless... I would expect to see the same gains (if any) that you would get from a throttle body spacer.
You want more power? Put the $685 towards an exhaust system with high flow cats, a K&N intake, and a tune.
#14
And anyone who truly knows boosting and how to boost cars knows that its not the boost that matters, but the cfm the turbo produces. A small turbo can produce 20 psi, but its most effective at 12 when the cfm is higher. Talk to anyone who had some dyno time and there is a point in every boost situation where the turbo or supercharger looses its efficiency. When a turbo car is sitting at idle the cfm from the turbo is more than the intake vacuum of the engine. So its always ahead of the engine and that grows exponentially with rpm.
#15
while i do agree with you, i think you are missing one important point about the CFM, if you have a fan that will move 1000 CFM this is 1000 cfm @ 0 psi (no resistance) if you put the resistance of the motor on it, that 1000 cfm may drop to 200 cfm @ 1 psi, which would not help the power... the reason that the pressure is mentioned so much is because it is the pressure tht creates the power, however, you need the CFM to keep the pressure up as the motor removes air from the intake, neither CFM nor PSI alone will make an engine have more power...
#18
I'm not after a power boost for my ride, just posting something I thought was interesting. I've had zero dyno time, never owned a supercharged or turbocharged vehicle, and can't technically argue whether it's the boost or air flow that really matters.
There's this practical side to me that says if adding an inch of space to the throttle body gives more power, Ford would do so. And if a cheap tubular electric fan stuffing air down the intake made a big difference, Ford would add one of those as well.
But then there's this other side to me that says, hey, why let the engine suffer with each breath, struggling to suck that precious air through a filter when you can have more than the usable amount waiting to be plunged down yer valves....it's gotta be beneficial. Not $700 worth mind you, but beneficial nonetheless. And I really doubt the electronic gizmo part can accurately track engine load and deliver the perfect amount of air oversupply as needed, but then.......nah.
There's this practical side to me that says if adding an inch of space to the throttle body gives more power, Ford would do so. And if a cheap tubular electric fan stuffing air down the intake made a big difference, Ford would add one of those as well.
But then there's this other side to me that says, hey, why let the engine suffer with each breath, struggling to suck that precious air through a filter when you can have more than the usable amount waiting to be plunged down yer valves....it's gotta be beneficial. Not $700 worth mind you, but beneficial nonetheless. And I really doubt the electronic gizmo part can accurately track engine load and deliver the perfect amount of air oversupply as needed, but then.......nah.
#19
the throttle body spacers DO add more power, so do changing your mass air flow sensor housing to a larger one (not sure about our trucks, but i got about 15 hp on my mustang, larger throttle bodies also add power... it's just not significant... same with the fan posted above, while it probably will add more power, it would probably add around 5 horsepower, which is NOT enough to feel, where as exhaust and intake, which would cost around the same, would probably add 30
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