Drivetrain Venturi Scoop info?
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i like it.. it makes me different right now.. cause most people would not put that on there car because of the price... I think it cools my car down more with that scoop on there... although it probably only took 15 bucks to make i think this its worth the price..
MSFITOY,
The Magnehelic is a gauge that measures air pressure with very sensitive resolution:

https://www.northamericanmotoring.co...amp;topic=8631
The Magnehelic is a gauge that measures air pressure with very sensitive resolution:

https://www.northamericanmotoring.co...amp;topic=8631
>>Anyone who gets one is welcome to borrow my Magnehelic differential pressure tester. I'm curious to see if it has any effect on the air pressure going into the intercooler at speed.
I'd be willing to give it a try. Is it hard to set up?
I'd be willing to give it a try. Is it hard to set up?
Not hard to set up at all. It's just a gauge with two hoses attached to it. Tape one hose in the scoop area, seal off the other hose. Go for a drive. Record the reading at, say, 60 mph. Then, install the "venturi scoop" and go for another drive. Record the reading at 60 mph. If the air pressure is higher, the scoop does something. If it's the same it does nothing. If it's lower, it does negative something.
>>like the air is rolling over the scoop.. but this noise really is not loud until you reach 80 and up...
thanks for posting the pictures.
a little oversimplified aero: the noise you hear could be excess air spilling over the inlet. at any given air speed, you can only generate a given maximum static pressure that will force the air through the ic. the max amount of air that will flow through depends on this pressure and the resistance of the ic. having a larger inlet that captures more than the max amount that can flow through the ic means that the extra air just backs up and "spills" out of the inlet.
this spilled air is messy. on jet aircraft inlets, this messy spilled air causes what is called "spill drag." it's an ugly phenomenon that you are admonished to avoid. some designers try to avoid it with inlets that can change in size depending on the speed.
or you could be hearing vortices that are being generated off the back side of the lip, even if you aren't spilling.
ok, off the lecturn,
looking forward to somebody pressure testing/tufting these things,
flyboy2160
thanks for posting the pictures.
a little oversimplified aero: the noise you hear could be excess air spilling over the inlet. at any given air speed, you can only generate a given maximum static pressure that will force the air through the ic. the max amount of air that will flow through depends on this pressure and the resistance of the ic. having a larger inlet that captures more than the max amount that can flow through the ic means that the extra air just backs up and "spills" out of the inlet.
this spilled air is messy. on jet aircraft inlets, this messy spilled air causes what is called "spill drag." it's an ugly phenomenon that you are admonished to avoid. some designers try to avoid it with inlets that can change in size depending on the speed.
or you could be hearing vortices that are being generated off the back side of the lip, even if you aren't spilling.
ok, off the lecturn,
looking forward to somebody pressure testing/tufting these things,
flyboy2160
>>Not hard to set up at all. It's just a gauge with two hoses attached to it. Tape one hose in the scoop area, seal off the other hose. Go for a drive. Record the reading at, say, 60 mph. Then, install the "venturi scoop" and go for another drive. Record the reading at 60 mph. If the air pressure is higher, the scoop does something. If it's the same it does nothing. If it's lower, it does negative something.
Andy, please check you PM. I will send you my address...ok?
Andy, please check you PM. I will send you my address...ok?











