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Can someone please explain to me the concept of these on a gasser. Like the history behind it. Does it actually work on vehicles of multi-port injected motors. Etc. I'd like to get my facts straight as I don't think it's really worth the money spent on vehicles produced today.
I bought one when I would hard start after the engine was hot. It fixed that problem.
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1996 F-250 extended cab long box five speed. Home made Tymar, 203 Stat, 60 gal in bed fuel cell, 315/75's, no muffler, ebpv welded open 3" to 3" DP, Babies. 290K, still chugging, and still smoking when cold.
UPDATED 1/1/09 Replace so far. 1 LUK flywheel+clutch, 2 thermostats, 2 set of brakes, 1 set of calipers, 5 CPS, 3 sets of tires, 2 Transfer pumps, 1 Injector modual, 1 Computer, 2 Alt, 2 sets of batteries, 1 Water pump, 6 Belts, 1 PS hose, 2 Sets ball joints, 2 set u-joints, 2 carrier bearing, 2 Speed sensors, 1 oil pres sender, 1 temp sender, 4 sets of e-break cables, 1 front fuel tank, 2 rear fuel tanks, 2 set of glow plugs, 7 Glow plug relays, Oil galley o-rings, Turbo pedistal o-rings, EBPV o-rings, 3 sets of Injector O-rings, 1 Vac-pump, 1 new carpet, 1 total paint job.Total $$$ in repairs v/s miles driven = 4.6 cents per mile. Add fuel to that it jumps to 16.5 cents per mile over the life of the truck.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: PwrStrokinDually</div><div class="ubbcode-body">Can someone please explain to me the concept of these on a gasser. Like the history behind it. Does it actually work on vehicles of multi-port injected motors. Etc. I'd like to get my facts straight as I don't think it's really worth the money spent on vehicles produced today. </div></div>
Intakes are tuned to resonate at a certain frequency.
The larger the volume, the lower the frequency.
The lower the frequency the better the cylinder filling at lower engine RPM's.
The device you are referring to goes behind the throttle plate and increases the volume of the intake. The amount of research put into the device is next to nill, it may or may not work at providing a slight mid-range increase in power.
You increase the power of the engine by opening the throttle more, the more you open the throttle the less effective that device will become.
It's hard to make sense of but basically since the increase volume wasn't engineered, it's not going to make a difference.
<div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">The device you are referring to goes behind the throttle plate and increases the volume of the intake. The amount of research put into the device is next to nill, it may or may not work at providing a slight mid-range increase in power.
You increase the power of the engine by opening the throttle more, the more you open the throttle the less effective that device will become.
It's hard to make sense of but basically since the increase volume wasn't engineered, it's not going to make a difference.
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Well said, plus the Corvette, Tundra 5.7, and for all I know some others have duel intake runners (short and long) and the intake stream is switched back and forth depending on load, throttle pressure, RPM, variable valve timing, etc. As finely as that had to be engineered for max HP and fuel mileage I wouldn't want to do any "mods" in that area.
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