Would you gain anything if you put a fan (something like this CPU FAN
) before or after the Throttle Body. Just to increase air flow.
There have been gimmicky 'electric turbo's' in the past that used marine exhaust ventilation blowers and they didn't do anything either, and if I remember right.. They pushed a good amount of flow, the only problem is that the mechanics of a turbo are based upon back pressure, and since standard fans don't have (or hold) back pressure, they don't do a lick of good.
-Matt
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not at all, that wouldn't increase air flow at all, in fact it would restrict air flow.
Actually... Interesting timing for me to find a banner on JBO that advertised 'electric superchargers'.
http://www.electricchargers.com/
Go figure?
-Matt
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the only time these actually do any good is at less than 10% throttle, after that, the engine is pulling more air than the fan can feed and it ends up restricting he airflow. ive also seen people take shop vac blowers and put them on civics, LMAO!!!
many changes in the making
my favorite part about doing bodywork,.......... bondo bugers
hahaha shop vacs on civics! Priceless!
-Matt
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WhitePhatt wrote:There have been gimmicky 'electric turbo's' in the past that used marine exhaust ventilation blowers and they didn't do anything either, and if I remember right.. They pushed a good amount of flow, the only problem is that the mechanics of a turbo are based upon back pressure, and since standard fans don't have (or hold) back pressure, they don't do a lick of good.
-Matt
I believe the term you are looking for is "positive displacement." This means that air isn't blown, but rather forcibly compressed into a space. Technically it isn't necessary for an air-pump to have positive displacement. Roots type blowers are actually not positive displacement, but rather just air pumps that actually pump more air than your engine(which is also an air-pump) normally would/could. Positive displacement pumps like turbochargers, centrifugal superchargers(basically a pulley driven turbo), and twin-screw type superchargers are all more efficient than a simple air pump like a roots blower.
Now if you want to know if that fan is going to do you any good(besides getting sucked into the intake and damaging something), then conduct the following test -
1. Plug in your CPU fan to a 12V power source. Put your hand over it and note the amount of airflow it generates.
2. Remove your air intake so that your throttle body is exposed. Remove all jewelry etc from your hand(you will know why soon).
3. Have a friend start your car.
4. Then have that friend push on the gas petal while your hand is right in front of that throttle body. Note how you feel like you almost lost your hand to the engine.
5. If you can honestly tell me that your CPU fan is capable of anything close to that... I want to know where in the hell did you get that CPU FAN?!
I've never heard of this "part throttle" before. Does it just bolt on?
This question has been asked by hundreds of people already, and every time someone tests one, it doesn't work. You have to remember that most of our engines are sucking 2000cc's of air through the throttlebody every rev. thats two 2 liter soda bottles, just think of how much you have to multiply that at even idle rpm, to figure out how much it is a second. NO electric fan can even come close. There was ONE electric roots type supercharger on the market for awhile that actually worked in shorts burst. You hade to hit a switch like you where using nitrouse, and it was good for about 12 secs, then it had to recharge, but it cost just as much as turbo-ing or hooking up NX to your car, so it wouldn't be worth it, plus I never remember anyone actually doing any reviews on it to see how whell it actually worked. Your better off to just give up on the idea, and just get a good CAI, and maybee a BB throttle body.
