build my own s/c

[It's Just Eric]

pardon my being vocal on the matter, but I vote

FAIL!

lemme put it in very un-technical terms for you. The motor in the svx sucks more air in that your leaf blower will make. If for some ungodly reason you managed to flow more air than the motor consumes, you'll run into a new problem. The air mixes with gas to create a combust..hold on, getting too technical... IF you manage to put more air in the motor, you'll need to put more fuel in too. That's why people put on larger inkectors and fuel pumps and fix the computery bits as well

I would dare you to prove me wrong, but you'r best bet is to return the leaf blower before you do something that'll void it's warentee

[cruisen_15]

yeah, kinda too late to return it... i meen i could but if they took it apart... they would say WTF!!!!!! well does the MAF send anymore fuel if it sees an increase in air going in?

[cruisen_15]

not trying to be a smartass about it after it was said i have a 7 amp blower motor.... its actullay 12 amps thank you

[Boxersix]

Originally Posted by cruisen_15

not trying to be a smartass about it after it was said i have a 7 amp blower motor.... its actullay 12 amps thank you

1 Hp = 746 Watts

Amps to Watts = A x V

12 x 12 = 144

144/746 = ~.19 HP

Rough math and conversion.....but .19hp is not going to cut it

Even if you took that same motor and bumped it to 36V(armature and field windings would never last) you'd only get to about 1/2 hp. Then you run into charging issues, etc.

While turbochargers do not use horsepower from the rotating mass of the engine..they DO require horsepower to spin the CHRA and compress air. They just extract that power from the wasted energy of the exhaust flow and heat. Typical SC's required anywhere from 10-150hp to drive(drag blowers upwards of 400+hp to work at WOT). Your typical turbocharger, pending size and CFM ebing compressed, takes 10-70 hp to drive.

Do you see where I'm going with this?? Your $100 mark isn't enough, unless you're getting batteries for free, and lots of them........

[sicksubie]

[Davestone]

Originally Posted by sicksubie

Ha that made me laugh. Anyways, if you wanna try this, all the power to you. And if it works I want a How-To
Good Luck

[YourConfused]

Logic says one thing and science says another. Which is valid? This is not an area where faith has any relevance, so science must hold true.
fail!

[odepaj]

Originally Posted by YourConfused

Logic says one thing and science says another. Which is valid? This is not an area where faith has any relevance, so science must hold true.
fail!

Haha, but in this case, even logic has failure written all over it!




Dustin

[Trevor]

Originally Posted by Boxersix

1 Hp = 746 Watts

Amps to Watts = A x V

12 x 12 = 144

144/746 = ~.19 HP

Rough math and conversion.....but .19hp is not going to cut it

Even if you took that same motor and bumped it to 36V(armature and field windings would never last) you'd only get to about 1/2 hp. Then you run into charging issues, etc.

While turbochargers do not use horsepower from the rotating mass of the engine..they DO require horsepower to spin the CHRA and compress air. They just extract that power from the wasted energy of the exhaust flow and heat. Typical SC's required anywhere from 10-150hp to drive(drag blowers upwards of 400+hp to work at WOT). Your typical turbocharger, pending size and CFM ebing compressed, takes 10-70 hp to drive.

Do you see where I'm going with this?? Your $100 mark isn't enough, unless you're getting batteries for free, and lots of them........

Sadly I agree with certainty that the suggested experiment is doomed to failure. However I do not hold with some of the rather disparaging authoritative remarks as these could be personally hurtful.

From back in the thread it is fairly clear (Typo accepted) that the intended blower motor is rated at 225 volts AC mains power, and now we have 12 amps as an additional figure. A “good power inverter“ has been mentioned as a possible accessory.

As a guide the Figures at issue could be taken to indicate 2,700 watts. Rather high I would have thought for a portable tool intended to use a long extension lead, but quite possible. It should be appreciated that these motors along, with those in vacuum cleaner, can be run at very high levels of efficiency due to a vast amount of cooling intake cunningly utilised.

Calculation indicates 3,6 HP. and not 0.19 HP as has been stated. Surely it is obvious the this sort of squirt would not blow powder from a ladies puff, much less leaves off a garden path.

The correct comment would have been to draw attention to the fact that rewinding the motor for 12/36 volt operation would not be cost affective even if feasible. Secondly that an inverter capable of delivering 2.7 KW is a costly exercise and considerable losses would occur during conversion. Even as an experiment, the figures do not add up.

[Nevin]

I'll make this easy: FAIL.

[LetItSnow]

[Boxersix]

Originally Posted by Trevor

Sadly I agree with certainty that the suggested experiment is doomed to failure. However I do not hold with some of the rather disparaging authoritative remarks as these could be personally hurtful.

From back in the thread it is fairly clear (Typo accepted) that the intended blower motor is rated at 225 volts AC mains power, and now we have 12 amps as an additional figure. A “good power inverter“ has been mentioned as a possible accessory.

As a guide the Figures at issue could be taken to indicate 2,700 watts. Rather high I would have thought for a portable tool intended to use a long extension lead, but quite possible. It should be appreciated that these motors along, with those in vacuum cleaner, can be run at very high levels of efficiency due to a vast amount of cooling intake cunningly utilised.

Calculation indicates 3,6 HP. and not 0.19 HP as has been stated. Surely it is obvious the this sort of squirt would not blow powder from a ladies puff, much less leaves off a garden path.

The correct comment would have been to draw attention to the fact that rewinding the motor for 12/36 volt operation would not be cost affective even if feasible. Secondly that an inverter capable of delivering 2.7 KW is a costly exercise and considerable losses would occur during conversion. Even as an experiment, the figures do not add up.

Ah yes correction most definitely needed on my part there with the voltage at hand. Correct math, incorrect variable Still at hand, and as stated even 3.6 hp just won't add up to what he needs to make this work(and be worthwhile financially)

-Adam

[cruisen_15]

ok this motor is a 120v 12 amp. so what im understanding is i need a power inverter that is 2700 watts, well what about this inverter right here?
http://www.amazon.com/dp/B000EWIYQQ?...0&linkCode=asn

yes i know at 5k rpm it would be taking in more air than the blower, but what about starting at 800rpm, and a quick shot from the blower?? wouldnt that work?

My friend also said that what if you use a a/c blower out of a car, and that those run on 12 volts so i should build one of those... but i wasnt sure...

My blower has enough power to shoot a water bottle up in the air... connected to the house elec.

I could show a video of my blower if anyone likes....

[cruisen_15]

ok i ran some numbers, correct me if im wrong..

1 amp * 110 volts = 110 watts

therefore, 12 amps x 110 volts = 1320 watts

then i would only need a 1320 watt power inverter, explaining why my 400 watt power inverter did not work...

[LetItSnow]

The question is, where are you going to get that wattage? From 12-14V, that's a bucket of amps!