[02GTRX]

A co-worker and I were discussing the idea awhile ago so I thought I'd post it here to get some feedback. He claims he saw a leafblower at sears that flows 220mph.what do you guys think about getting any kind od benefit from this by simply attatching a tube from the blower to the intake? Maybe running a tube from the intake side of.the blower down to the bottom of the bumper for cooler air? Any thoughts, ideas?

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[tag4car]

lol, ok,
are you trying to achieve cooler air by using the blower to circulate the air in the bumper? or are you thinking about trying to create an electric forced induction setup?

1st off that's going to send the maf crazy, You're results may vary

[02GTRX]

Ha I'm not trying to do it, we were just debating if, as you refered to it, "electric forced induction" would work. Is there anyway to make the maf accept the extra airflow? Would there be maybe a small increase in hp or mpg? I just don't see how this could have any kind of negative results...
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[DarkFireGT]

Nope. Plenty of people have tried it. Won't work. You'd basically need one on every cylinder and a crazy custom set up with that. And even at that point, we're talking maybe 25 ponies.

[klaw]

The leaf blower only moves those large volumes of air because the pressure differential across the fan is very small. As soon as you try to increase the pressure differential (by blocking off the exit for example), the flowrate drops dramatically. These types of fans cannot generate any significant boost (increase in manifold pressure) and therefore would not be any significant benefit on your vehicle. Certainly much more trouble than value.

[08blueskunk]

i heard of "myths" that people had done it on old beater civics and stuff and they get like 1-2 Lbs. of boost...? again it was a guy that new a guy, who's friend's, brother's, cousin tried it...?

[08blueskunk]

[02GTRX]

Originally Posted by 08blueskunk

LMAO now thats funny!! a high rise intake lol!!

[DarkFireGT]

Originally Posted by klaw

The leaf blower only moves those large volumes of air because the pressure differential across the fan is very small. As soon as you try to increase the pressure differential (by blocking off the exit for example), the flowrate drops dramatically. These types of fans cannot generate any significant boost (increase in manifold pressure) and therefore would not be any significant benefit on your vehicle. Certainly much more trouble than value.

Exactly. There's no seal on the fan at all. So when you put back pressure on it, the air escapes elsewhere.

[mijo_latino]

you guys had to of seen that video of a civic on a dyno with a leaf blower shoved in? ill look..

found it...


Leaf+Blower+Bolt+on+Dyno+pull

[NastyStang113]

Stupid.

[UrbanRedneck]

haha you beat me to it latino. So obviously it does SOMETHING, but that isn't any kind of significant power gain. But it also only works on a stationary dyno, where are you gonna plug the leaf blower in on the road? If you run it off a power invertor, the added load on the alternator will likely negate any power gains. Remember, energy cannot be destroyed or created, it only changes form.

[08blueskunk]

So now that we know there is a market for NOS injected leaf blowers anyone want to start a business with me, if we jump on this quick maybe we can corner the Market!!

[klaw]

Next thing you know, someone will be strapping those across the back of their car looking for some rocket assist. Didn't the OP mention 220MPH discharge velocity? Probably a Youtube on it somewhere!

[Steel Horse]

In the video they use a gas leaf blower and don't crank it up until the dyno run starts. So you would have to strap someone to your front bumper to wait until you go WOT to spool up your leaf charger.

[lightblade]

Originally Posted by UrbanRedneck

haha you beat me to it latino. So obviously it does SOMETHING, but that isn't any kind of significant power gain. But it also only works on a stationary dyno, where are you gonna plug the leaf blower in on the road? If you run it off a power invertor, the added load on the alternator will likely negate any power gains. Remember, energy cannot be destroyed or created, it only changes form.

Umm its matter can not be created nor destroyed, energy is totatly different
A power inverter would work, your alternator is not going to spin any faster so your not going to loose anypower. You could burn up your alternator because of the load depends on the wattage of the leaf blower. With that being said this is still a horrible ideal, btw if u get a blower or fan anywhere near your intake filter or maf the car is going to shut off.

[eliteJAE]

Originally Posted by lightblade

Umm its matter can not be created nor destroyed, energy is totatly different
A power inverter would work, your alternator is not going to spin any faster so your not going to loose anypower. You could burn up your alternator because of the load depends on the wattage of the leaf blower. With that being said this is still a horrible ideal, btw if u get a blower or fan anywhere near your intake filter or maf the car is going to shut off.

umm.....its energy cannot be created or destroyed.....

Conservation of energy - Wikipedia, the free encyclopedia



and klaw has got it dead on with pressure differentials.

[ilovemynintendo]

did anyone else take note that they are spraying nos right next to a guys face?
hahaha

[klaw]

Originally Posted by eliteJAE

umm.....its energy cannot be created or destroyed.....

Conservation of energy - Wikipedia, the free encyclopedia

neither matter nor energy can be created or destroyed (matter and energy are related: E=mc^2)

Originally Posted by eliteJAE

and klaw has got it dead on with pressure differentials.

Originally Posted by ilovemynintendo

did anyone else take note that they are spraying nos right next to a guys face?
hahaha

I think my dentist did that once!

[NastyStang113]

I think some of you need to go back to school ....

[UrbanRedneck]

Originally Posted by lightblade

Umm its matter can not be created nor destroyed, energy is totatly different
A power inverter would work, your alternator is not going to spin any faster so your not going to loose anypower. You could burn up your alternator because of the load depends on the wattage of the leaf blower. With that being said this is still a horrible ideal, btw if u get a blower or fan anywhere near your intake filter or maf the car is going to shut off.

Never heard of conservation of energy? Energy changes forms, it is never destroyed or created. Example. your gasoline contains chemical energy, which is turned into heat energy in the cumbustion process, which is turned into kinetic energy as the engine moves the car, which is turned into heat energy again as the brakes slow the car down. Obviously there are a lot of other energy conversions going on throughout that time but that is the basics. Industrial physics, which invovles energy, heat, and hydraulic physics, was a requirement for my automotive degree.

Now, the alternator's load on the engine is not based on speed. the more current that is drawn from the charging system, the harder it is to mechanically turn the alternator. This is because the alternators stator (or is it reluctor? I always mix these two up) is an electromagnet that is given varying votages to change the strenth of it's magnetic field. The stronger the field, the more resitance to rotation it puts as it rotates inside the coils, but the more energy is transfered from mechanical to electrical in the process. Alternator field voltage is controlled by the voltage regulator, when voltage drops in the system, indicating a current draw, the regulator increases field voltage to increase alternator output current. If you full-field an alternator they can often make as much as 70 volts (this is how on-board welders for off-roaders work, they isolate the charging system, raise the idle, and full-field the alternator to weld things). So, to put it basically, the more current drawn from the alternator, the more mechanical resitance is put on the engine. It's easy to tell in a small car with a small engine, turn on the rear defroster and note the engine will drop it's idle speed for a split second. Or take an alternator on a bench, turn the pulley and I bet it turns easy. Give it a field voltage and I bet you can't even turn it.

[ilovemynintendo]

Originally Posted by klaw

I think my dentist did that once!

two totally different types of nitrous

one makes you laugh

the other one makes your lungs collapse on themselves... but... it does help add horsepower

[NastyStang113]

Originally Posted by ilovemynintendo

the other one makes your lungs collapse on themselves... but... it does help add horsepower

Sounds like a bad case of a smoker's lungs.

[o0Dan0o]

Originally Posted by klaw

neither matter nor energy can be created or destroyed (matter and energy are related: E=mc^2)

Both can be destroyed and created. If a particle meets its anti-particle (electron and positron, proton and antiproton, neutron and antineutron) they will annihilate each other and give off the energy describe in Einstein's equation that you posted, though gamma should be added to account for special relativity. Thus, you destroy matter and create energy. We have done this.

Oh the other had, if you have two or more photons of precisely the correct total energy (again as stated in Einsteins equation) that collied they can form a particle or particles. Destroying energy and creating matter. I believe we have done this.

Generally speaking though, both mass and energy are conserved, as is momentum as long as you are calculating it from an inertial reference frame.

I was thinking that if you wanted to do this at a drag strip with a short belt, you could hook up a high torque eclectic motor to a centrifugal supercharger with the right pulleys to get it in it's peak range. Thus boost with no parasitic power loss.
Dan

[klaw]

Originally Posted by o0Dan0o

Both can be destroyed and created. If a particle meets its anti-particle (electron and positron, proton and antiproton, neutron and antineutron) they will annihilate each other and give off the energy describe in Einstein's equation that you posted, though gamma should be added to account for special relativity. Thus, you destroy matter and create energy. We have done this.

Oh the other had, if you have two or more photons of precisely the correct total energy (again as stated in Einsteins equation) that collied they can form a particle or particles. Destroying energy and creating matter. I believe we have done this.

Generally speaking though, both mass and energy are conserved, as is momentum as long as you are calculating it from an inertial reference frame.

I was thinking that if you wanted to do this at a drag strip with a short belt, you could hook up a high torque eclectic motor to a centrifugal supercharger with the right pulleys to get it in it's peak range. Thus boost with no parasitic power loss.
Dan

OK - Maybe I'll just make this simple so we don't start discussing the practicality of mounting a supercollider on a mustang: The leaf blower supercharger is an idiot idea that has no practical application.