I was browsing cardomin.com and came across a kid with a TBI third gen with an electric leaf blower plumbed into his ducting plugged into a power converter. He claims a .5 sec. reduction in E.T... I checked on leaf blowers, and some can blow 200mph. Its only a $150 investment with the power converter, so im seriously thinking about it. I have TPI so i will have to come up with an air filter before the blower. I want my plumbing to be more sealed than his (pic enclosed). Will this work???? I will only hook it up for the track and turn it on at wide open throttle. Im i crazy???

Im all about budget racing, i have some cheap mods i learned from this site and other sources. check my webpage http://www.cardomain.com/id/2quikk4u

tell me what you think about this idea, it is amusing if anything!

 

yes you are most likely crazy. i have seen this thing before but never seen paper numbers to back up the claim of a half second. but you can be the one to answer the question for everybody, try it out and see if it works. then everybody will know. but it's gonna look ghetto as all get out.

 

I'm gonna say no on that one, Especially how he has the ducting ran. Even if he could produce ANY boost with that thing, it would all leak out thru his plastic ductwork and air filter housing. Not to mention the fact that the blower probably can't get the amperage it needs to run it's max thru the little a/c d/c converter. Same thing as those electric superchargers that are supposed to add 40 hp. It's a bunch of BS. .5 seconds gain? :lala:

 

I don't believe it would work...the boost would leak out of the thermac valve on the air cleaner...if no where else.

Also, the engine sucks in air at a healthy clip itself...so the key is whether or not the leaf blower could actually provide boost...and the answer is NO.

HTH,

 

Oh Christ not this again....seems every few months this come up......

 

Dont do it.

 

where'd my post go?

 

Maybe if you put a blower on your blower, you could make enough horse power to move enough air to make some boost. Maybe nitrous too. 100 HP leaf blower might work.

 

I could put a shopvac on the tail pipe also for the same effect.....

 

looks fast!

 

It picked up 9rwhp and 16rwtq on the dyno.

 

My friends and I hooked up a gas powered leaf blower to my friends civic before he did an engine swap. We were trying to blow up the engine, it definitely made it faster but it would be super ghetto to drive around with one under the hood.

 

What were the exact conditions...on what kind of an engine? I would need to see actual PROOF before I could believe it.

If there was to be ANY gain, MAYBE I could see it due to the cold air induction or unrestricting a constrictive air intake...beyond that...I don't think so.

 

Put up a link to the leaf-blower kid's car.

 

Max flow on the biggest blower is 275cfm....... power gain

 

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It is a 305 TBI, maybe not a fast fast car.. but the fact is that the gains are true.

 

i think it would work better on a tpi with everything being sealed better then the tbi. i think i might try it and see what happens? hell i got a 13.0 second bottom end out of my bro's nova sittin in my garage for me whats the worst that'll happen?hahaha

 

I suppose a guy could try this and be very careful not to wreck the leaf blower and return it to Walmart.
My duct tape ram-air shaved .2 seconds off my et.
Check it out on my page

 

350 in^3 @ 3000 RPM would SUCK 304 CFM of Air. So your biggest leaf blower would provide nothing at or above 3000 and would probably be a restriction.

It is slightly possible that below 3000 RPM you could see some /minor/ gains, but subtract from that the losses from the pull on the alternator from the electric motor on the leaf blower and it would even out or actually loose power.

All in all, I think you would probably see no gain below 3000, and above 3000 probably a 5+ hp loss by putting that into the system.

Spend the $150 on a "Tornado" hehe

:lala: :lala:

 

speaking of the tornado... is that a gimmick or what? does it save mpg or hp??

 

It's a total piece. Use the money on stuff that will actually do something.

 

That car rules!!

Best mod evar!!

 

Actually, weed eater produces a 400 cfm leaf blower. Don't let people discourage you too much, 2QUIK. It is pretty ghetto, but power gain is power gain... and if the project fails, you have a nice shiny new leaf blower!

 

Make sure to get Bubb Rubs exhaust whistle. WoohWOOOO

 

Looks like you beat me to it Shaun. I was there when he dynoed the car with the leafblower on it. He actually picked up hp/tq with it...all to my surprise. Those of us that were there just started laughing at him when he pulled it out and hooked it up.

 

The blower does exactley what it says. It BLOWS. A supercharger or Turbocharger does exactley what its says (German) KOMPRESSES. Stick you hand or something (strong) over the leaf blower and see how it will come out somehwere else other than the end. Stick the same thing over a turbo or supercharger and and try and make it come out somewhere else. Good luck. Theres a difference in blowing and compressing. If someone still wants to do it. You might be better off using a old Central heat and air blower. LOL. Cheaper to.

 

Sure, perpetuate the myth. And then everyone bitches at being called a red-neck.

 

Omg I remember that ! lol I don't remember where I saw that clip though

 

Hey wow can I get one of those then maybe I can race the ricers too when I go from an 8.20et to a 10.20 cool and who would have thought to go to lowes for performance parts gotta go by

 

Actually, to be strictly technically correct, very few superchargers actually do much more then blow, and almost none of them compress.

The few exceptions are some of the screw types (lyshom) and the g ladder style.

Roots/positive displacement blowers basically move air from one side of the case to the other and you get boost because of the air stacking up in between the blower and the engine. Centrifugal supercargers (turbos) just accelerate the air, and as this fast moving air travels down the diffuser (which the ducting after it is part of) it slows down and the dynamic pressure from the fast moving air becomes static pressure.

 

so im wrong?

 

This \/ is the only working electric blower/comprssor out there. This guy have been developing it since 1978. he say's it's been really difficult, and you guys say that "any leafblower would do"! LOL

Check it out, full story from turbomagazine:

http://www.turbomagazine.com/tech/0406tur_knight/

 

Pretty much.

If you put enough power behind a squirrel cage fan and designed it with tight enough tolerances and a proper diffuser you’d see some boost, it would work very similarly to a a centrifical compressor but it would be hard to keep the cage together and the openings in it clean. Of course, enough power to do something useful on a real engine is well in excess of what you can comfortably package/wire in a car via electric motor.

The Knight setup isn’t really an exception; it’s just a lobe style blower with 3 starter motors powering it. You guys should have some concept of what one starter takes to turn and what it takes out of the charging system/battery, imagine what 3 would do every time you play with the loud pedal. Even with all that it really only moves enough air for a smaller engine then would be useful in an f-body anyway

 

I think what Knight concluded pretty much sums it up, you'd need about a 20hp electric motor to make about 8 psi boost, "even a 2.0-liter engine making 15 psi at 8000 rpm required a 30-hp DC motor. Testing has shown the smaller the engine, the higher the sustainable boost." Go larger on engine, and you'd need a more powerful DC motor. Keep in mind that he is using a 1,6 liter engine.

20 hp electric motor is in his case 3 modified electric starter motors, now how many hp does a leafblower have?


As Mr. Knight put's it; "I found that flowing 780cfm at 15 psi required 80 to 100 hp. I went smaller on engine size and lowered boost requirements until I reached 450cfm at 8 psi, which required 18 to 22 hp, so I looked for a 20-hp dc motor."


After a quick search I found that the most powerful leafblower from black&decker has an output of 1800 watts. When you convert that to HP, you got about 2.41 HP. keep in mind that it only flows 406 cfm, so you actually need two of them or more.

Than you'd need a 3600 watt inverter, which is typically a $1250 item, and you'd still only be producing under 5 hp. which would equate to approx 15psi/90hp x 5 hp = 0,83 PSI Which is better than nothing, but hardly cost effective.
So give this a rest now, you've got the numbers, and they don't lie.

 

Im gonna lose sleep over this one. I cant wait untill "someone" try's a twin leaf blower set up !!

 

the odd thing is that the blowers will heat up the air

 

Why is that odd? It is physics. That is how the refrigirator works too. You can move heat by using a compressor and a restrictor.

 

My next project is to have a remote mount turbo hooked to a generator that makes enough power to spin 4 shop vacs...cough...cough

 

it is odd because adding hot air to a motor dose not make it more efficent---"It is physics" LOLOLOO

have a great day

 

it is odd because adding hot air to a motor dose not make it more efficent---"It is physics" LOLOLOO

have a great day

 

It is not the hot air you wan't ... it is the denser air from compression ... The hot air is an unwanted byproduct from compression but you still make more power ...

You should not underestimate the laws of physics ... When you don't beleive them ... Then your thinking are most certanly wrong.

 

ya ya ya

that is why we put an intercooler on the Gn that runs 10.2 quarters---I never said I do not believe the laws of phyisc that is your assumption

DUMB A$$

 

Then why a stupid statement if you know better?

Well ... whatever ...

 

actually, hot air does make an engine more efficient. It does tend to make more power per given quantity of fuel, run better, lower emissions…

The reason that you make more power with colder air is that overall you get more air and fuel into the engine.

As for the rest of this, compressing air increases it’s temperature. Whipping it around with a blower that isn’t well sealed accomplishes this without as much a net gain in pressure…