DO these "Superchargers" work??
09-30-2002, 07:12 PM
#1
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DO these "Superchargers" work??
I was surfing ebay and I can across these blowers are they any good? 
09-30-2002, 07:37 PM
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Sorry I now realize it wasn't a joke, that thing is a rip off, there's a reason why people on here don't list them in their mod list.
09-30-2002, 09:26 PM
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Those are complete rip-offs. They just cause more of a restriction. Just make a good ram air system or CAI and you will get the air you need.
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10-01-2002, 01:27 AM
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Actually I have heard of this, I saw it as the ERAM..........from what they say it's supposed to produce 1.5 lbs of boost 
, but I agree, more then likely it'll hurt airflow more then it will help.
On a lighter note.........me and a buddy of mine are gonna rig up twin leaf blowers on my gf's 89' blazer with a 4.3 and g-tech it, I'll let you guys know how it turns out.........ya know, just for sh$t's and giggles
, but I agree, more then likely it'll hurt airflow more then it will help.On a lighter note.........me and a buddy of mine are gonna rig up twin leaf blowers on my gf's 89' blazer with a 4.3 and g-tech it, I'll let you guys know how it turns out.........ya know, just for sh$t's and giggles
10-01-2002, 04:37 AM
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Originally posted by Bandit TA
On a lighter note.........me and a buddy of mine are gonna rig up twin leaf blowers on my gf's 89' blazer with a 4.3 and g-tech it, I'll let you guys know how it turns out.........ya know, just for sh$t's and giggles
On a lighter note.........me and a buddy of mine are gonna rig up twin leaf blowers on my gf's 89' blazer with a 4.3 and g-tech it, I'll let you guys know how it turns out.........ya know, just for sh$t's and giggles
Not exactly stealthy though.That would be an interesting mod for a bike.
There was a big discussion on another list about electric superchargers and how they don't (and cannot possibly) work. Back in the 1950s my Dad made his own electric supercharger with squirrel-cage blowers and pressurized a carb in a plenum chamber on his lil' Nash Rambler (remember the "Beep-Beep" song by The Playmates?). It turned 147MPH on what is now one of the runways at Detroit Metro. (Willow Run was the regional airport at that time). :rockon:
10-01-2002, 08:07 AM
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Leaf blowers won't do ****. What are they like 1 or 2 hp, you do know that a normal SC can take a lot of hp just to turn it, like 100hp. Thats why they can make boost. A decent hood scop will do way more than leaf blowers ever could. Think about it, whats more forcefull, putting your hand in front of a leaf blower, or sticking your hand out the window at 90mph.
10-01-2002, 08:42 AM
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Car: 99 Formula
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Originally posted by Vader
Okay, you KNEW it was time to dust off the old cruiser...
The Craftsman leaf blowers seem to be the best, since they are black and stealthy:
Okay, you KNEW it was time to dust off the old cruiser...
The Craftsman leaf blowers seem to be the best, since they are black and stealthy:
10-01-2002, 12:40 PM
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Originally posted by Low C1500
Leaf blowers won't do ****. What are they like 1 or 2 hp, you do know that a normal SC can take a lot of hp just to turn it, like 100hp. Thats why they can make boost. A decent hood scop will do way more than leaf blowers ever could. Think about it, whats more forcefull, putting your hand in front of a leaf blower, or sticking your hand out the window at 90mph.
Leaf blowers won't do ****. What are they like 1 or 2 hp, you do know that a normal SC can take a lot of hp just to turn it, like 100hp. Thats why they can make boost. A decent hood scop will do way more than leaf blowers ever could. Think about it, whats more forcefull, putting your hand in front of a leaf blower, or sticking your hand out the window at 90mph.
Right before you hit the gas you light up the old leaf blower to full chat. The other driver's initial disbelief and shock should result in a delayed reaction off the line and will let you use that leaf-blower-fattened-low-speed torque curve to full advantage. Yeah, later-on you can use your scoop or NOS but by then they're already history.
:rockon:
Someone SOMEWHERE must have tried this already! Time for a search.
10-01-2002, 01:24 PM
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Tragedy already in my search...
What NOT to do with a leaf blower...
http://garysplace.tripod.ca/prose.htm
What NOT to do with a leaf blower...
http://garysplace.tripod.ca/prose.htm
10-01-2002, 01:38 PM
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10-01-2002, 01:42 PM
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10-01-2002, 01:50 PM
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10-01-2002, 02:15 PM
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10-01-2002, 02:32 PM
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Finally, a leaf blower!!! And someone who isn't afraid to do a little empirical investigation. 
Excerpted from:
http://www.mr2.com/DIGEST/VOLUME2/1802.txt
Date: Tue, 27 Oct 1998 02:55:43 -0500
From: mark kibort <mkibort@compuserve.com>
Subject: MR2 Supercharger response
Message text written by INTERNET:EmAreTwo@aol.com
>
This guy is trying hard! I think he might have good intentions, but I'm
a
little confused. If it only comes on when your at WOT..would it not be
hindering your airflow otherwise. I would think so! But I'm not an
authority.
An electric turbo sounds good, but if it were that great manufactures would
pick it up. Sorry, but 400 bucks for a leafblower sounds a bit pricey for
me!
If I were going to attempt this, I would have at least found a way to
control
the speed of this blower with the Rpm's. I'll keep my 400 bucks and use the
electric blower for the AC and keeping the leaves of my sidewalk. Good luck
to
those of you who try though. I hope you prove me wrong! Keep working on
it...who knows you might come up with somthing at some point.
Dale<
>>>>>>>>Listen hear Skeptics , you should break out the book on Physics and
aerodynamics and flow theory dynamics.
This is not BS or SPam , and it is folks like you that have no imagination
or willingness to experiment , that will continue
to spend 300 bucks on copy headlights to make their cars look like a
300ZX. Im offering HP equal to headers or race exhaust or even a cam that
I have installed over the years (and I have dyno runs to prove it)
If you want to debate it , fine, but be a mature adult about it. Saying Im
crazy, or that this is BS , when I have done something that produces 10 hp,
is pretty funny. Kand N filters probably cost you HP. This works and I
have JPEGs that I can sent you to prove it.
Look, I offered a real, proven , solution that will effect HP in a way that
has not been discussed or attemped by anyone before.
Yes, the auto bolt on HP people are interested.
FACT: the Fan unit (or leaf blower, and it does blow the heck out of
leaves on your driveway too, but a little price to do that), produces over
500 cfm. out of a 3" diameter, that is a flow rate of over 120 mph.
this is generated out of a never seen before, impeller that is specifically
designed to absorb the hp of the electric motor at high currents.
FACT: The purpose of the unit is to increas hp. when not in use, it has
a very low flow resistance being an axial flow fan, as opposed to a
squirrel cage , or centrifical blower, which need to blow air proportional
to RPM. The Fan, a factor of 100 times less restrictive than a paper air
filter, does nothing to air flow when not in use. . Ive done the bench
tests and have the graphs and plots to prove it. One 45 degree bend in
your $290 cool air tubes, create much more losses that an impellar in the
tube.
the restrictive factor of a air filter cannot be ignored. even a K/N air
filter has a tremdous restrictive charateristic. You go and dyno with and
with out a filter, you will be amazed.
FACT: Ive gone to the dyno, ran the car, with and without the fans. At
the RAce shop, well known for their credibility and track record on the
track, were amazed that it did work and their were NO areas of reduction of
hp in anypart of the curve.
the gains were accross the board. 3000 rpm to 6000 rpm.
FACT: The fan only has to work on WOT. because this is when you want the
hp. If you are part throttle , you obviosly do not need
full or greater HP by definition. Right????? So, at WOT, the fan
instanly kicks in (very low inertia, so almost instantanious spin up to
20,000rpm , as compared with a Supercharger that has to spin an higher
mass, aluminum wheel to 80,000 rpm)
FACT: What did the guy that put a vaccum guage on his intake system
read. I dont buy " no vaccum" I ran the car to red lineand measured a
.25 -.5 psi and when I sealed the air box up tight with sealant, it went
to 1psi, proving that the leaks were coming from the engine compartment
with hot less dense air (another subject all together)
FACT: If you belive in RAM air and have done thing to your air box to
improve air flow, this is the next step and it works. especially if you
are an autocrosser, as speeds rarely get over 60 mph. the electric
supercharger will basically act as if you are traveling at 120mph , all the
time. (when you need the extra hp)
FACT: 5-10 hp is a good percentage of your little air restrictive 1600 cc
motors!
I will go over , openly my tests and the bottom line . MORE HP TO THE
GROUND THAN WITHOUT IT ! Open you minds and investigate. Some of the
best ideas are doubed first.
go on and waste mony on filters that dont do any good, oil that is supposed
to give you more Hp., and other gimmiks that may look good in the engine
compartment , but dont do anything.
Im on the track everymonth runnng my car, testing inventions and ideas,
and the car keeps on getting happier.
Respectfully,
Mark
PS , nice welcome to your list by the way.
Excerpted from:
http://www.mr2.com/DIGEST/VOLUME2/1802.txt
Date: Tue, 27 Oct 1998 02:55:43 -0500
From: mark kibort <mkibort@compuserve.com>
Subject: MR2 Supercharger response
Message text written by INTERNET:EmAreTwo@aol.com
>
This guy is trying hard! I think he might have good intentions, but I'm
a
little confused. If it only comes on when your at WOT..would it not be
hindering your airflow otherwise. I would think so! But I'm not an
authority.
An electric turbo sounds good, but if it were that great manufactures would
pick it up. Sorry, but 400 bucks for a leafblower sounds a bit pricey for
me!
If I were going to attempt this, I would have at least found a way to
control
the speed of this blower with the Rpm's. I'll keep my 400 bucks and use the
electric blower for the AC and keeping the leaves of my sidewalk. Good luck
to
those of you who try though. I hope you prove me wrong! Keep working on
it...who knows you might come up with somthing at some point.
Dale<
>>>>>>>>Listen hear Skeptics , you should break out the book on Physics and
aerodynamics and flow theory dynamics.
This is not BS or SPam , and it is folks like you that have no imagination
or willingness to experiment , that will continue
to spend 300 bucks on copy headlights to make their cars look like a
300ZX. Im offering HP equal to headers or race exhaust or even a cam that
I have installed over the years (and I have dyno runs to prove it)
If you want to debate it , fine, but be a mature adult about it. Saying Im
crazy, or that this is BS , when I have done something that produces 10 hp,
is pretty funny. Kand N filters probably cost you HP. This works and I
have JPEGs that I can sent you to prove it.
Look, I offered a real, proven , solution that will effect HP in a way that
has not been discussed or attemped by anyone before.
Yes, the auto bolt on HP people are interested.
FACT: the Fan unit (or leaf blower, and it does blow the heck out of
leaves on your driveway too, but a little price to do that), produces over
500 cfm. out of a 3" diameter, that is a flow rate of over 120 mph.
this is generated out of a never seen before, impeller that is specifically
designed to absorb the hp of the electric motor at high currents.
FACT: The purpose of the unit is to increas hp. when not in use, it has
a very low flow resistance being an axial flow fan, as opposed to a
squirrel cage , or centrifical blower, which need to blow air proportional
to RPM. The Fan, a factor of 100 times less restrictive than a paper air
filter, does nothing to air flow when not in use. . Ive done the bench
tests and have the graphs and plots to prove it. One 45 degree bend in
your $290 cool air tubes, create much more losses that an impellar in the
tube.
the restrictive factor of a air filter cannot be ignored. even a K/N air
filter has a tremdous restrictive charateristic. You go and dyno with and
with out a filter, you will be amazed.
FACT: Ive gone to the dyno, ran the car, with and without the fans. At
the RAce shop, well known for their credibility and track record on the
track, were amazed that it did work and their were NO areas of reduction of
hp in anypart of the curve.
the gains were accross the board. 3000 rpm to 6000 rpm.
FACT: The fan only has to work on WOT. because this is when you want the
hp. If you are part throttle , you obviosly do not need
full or greater HP by definition. Right????? So, at WOT, the fan
instanly kicks in (very low inertia, so almost instantanious spin up to
20,000rpm , as compared with a Supercharger that has to spin an higher
mass, aluminum wheel to 80,000 rpm)
FACT: What did the guy that put a vaccum guage on his intake system
read. I dont buy " no vaccum" I ran the car to red lineand measured a
.25 -.5 psi and when I sealed the air box up tight with sealant, it went
to 1psi, proving that the leaks were coming from the engine compartment
with hot less dense air (another subject all together)
FACT: If you belive in RAM air and have done thing to your air box to
improve air flow, this is the next step and it works. especially if you
are an autocrosser, as speeds rarely get over 60 mph. the electric
supercharger will basically act as if you are traveling at 120mph , all the
time. (when you need the extra hp)
FACT: 5-10 hp is a good percentage of your little air restrictive 1600 cc
motors!
I will go over , openly my tests and the bottom line . MORE HP TO THE
GROUND THAN WITHOUT IT ! Open you minds and investigate. Some of the
best ideas are doubed first.
go on and waste mony on filters that dont do any good, oil that is supposed
to give you more Hp., and other gimmiks that may look good in the engine
compartment , but dont do anything.
Im on the track everymonth runnng my car, testing inventions and ideas,
and the car keeps on getting happier.
Respectfully,
Mark
PS , nice welcome to your list by the way.
10-01-2002, 02:53 PM
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Vette using a leaf blower on a dyno!
10-01-2002, 03:19 PM
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10-02-2002, 12:44 AM
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Car: 1987 IROC
Engine: Vortec 350 TPI
Transmission: 7004r
I can see a properly sealed, high revving fan giving you a few more hp.. In a MR2 motor thats a lot easier to do, the engine demands waaay less air than our V8's.
I can also see such an 'electric supercharger' benifiting a V8 too though.. to a small degree... 7hp like he claims in the MR2? I believe that.
One question though.. how much does all that weigh?
How much extra weight are you adding by installing that beefy electric motor, and all the plumbing needed? Is it worth it's weight?
What good is 5hp when your 30lbs heavier?
I can also see such an 'electric supercharger' benifiting a V8 too though.. to a small degree... 7hp like he claims in the MR2? I believe that.
One question though.. how much does all that weigh?
How much extra weight are you adding by installing that beefy electric motor, and all the plumbing needed? Is it worth it's weight?
What good is 5hp when your 30lbs heavier?
10-02-2002, 01:15 AM
#27
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Originally posted by Jer82Z28
I can see a properly sealed, high revving fan giving you a few more hp.. In a MR2 motor thats a lot easier to do, the engine demands waaay less air than our V8's.
I can also see such an 'electric supercharger' benifiting a V8 too though.. to a small degree... 7hp like he claims in the MR2? I believe that.
One question though.. how much does all that weigh?
How much extra weight are you adding by installing that beefy electric motor, and all the plumbing needed? Is it worth it's weight?
What good is 5hp when your 30lbs heavier?
I can see a properly sealed, high revving fan giving you a few more hp.. In a MR2 motor thats a lot easier to do, the engine demands waaay less air than our V8's.
I can also see such an 'electric supercharger' benifiting a V8 too though.. to a small degree... 7hp like he claims in the MR2? I believe that.
One question though.. how much does all that weigh?
How much extra weight are you adding by installing that beefy electric motor, and all the plumbing needed? Is it worth it's weight?
What good is 5hp when your 30lbs heavier?
The 7 hp figure (and picture) was for a Corvette on the dyno (don't know which engine). If it was me, I'd install a gasoline driven blower with maybe four horsepower. Not enough CFM? Use two. There were a lot of other hits I didn't post that talked about gas powered blowers.
Some of these discussed gas powered blowers that apparently put out an air-speed of approximately 200 mph. There were some motorcycle tuners using them to dyno-check ram air effects on very powerful motorcycles (which really would go 180 mph plus).
10-02-2002, 01:25 AM
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Some more info
http://www.diy-efi.org/diy_efi/archi.../msg00197.html
> >
> >What do you think of a 'leaf blower' used to force air into an engine?
> >Has anyone tried this before? Some of these things can blow a LOT of
air...
> >they can also be run independanly from engine speed/exhaust
>
> They won't provide enough air. There's a good reason why a '400 HP'
> supercharged engine might only produce 320 HP at the flywheel! Lots of
> folks come up with 'electric superchargers' and **** but have no idea just
> what sort of power it takes to compress that much air that quickly.
>
http://www.diy-efi.org/diy_efi/archi.../msg00197.html
Actually, it does help in small engine applications.
A kid name Jason at my local track had a totally stock honda Accord
with a crude leaf blower setup. Not as good as NOS, but good.
He went from mid 17 sec 1/4 mile times to mid 16's.
These were HIS claims, but hey, an Iceman intake supposedly
gets you a thenth of a second, so, why would he be wrong?
The little bit of flow increase netted approx one second.
Granted, it prolly went from 120hp to 150, which is
not in nitrous territory, but it did improve.
He rigged a thottle so that the blower would fast idle
when the engine idled, because his car would surge & stall
if the blower was screaming at a closed buuterfly. Pobably
IAC related. He said it wasn't consistent, because the
leaf blower was mounted in such a way, that he had to open
the hood to start it, and if it stalled, he was "blowerless"
I'll get some digital pics this year if he still runs it.
He is always driving something "fangled" out there..
Mike V
> >
> >What do you think of a 'leaf blower' used to force air into an engine?
> >Has anyone tried this before? Some of these things can blow a LOT of
air...
> >they can also be run independanly from engine speed/exhaust
>
> They won't provide enough air. There's a good reason why a '400 HP'
> supercharged engine might only produce 320 HP at the flywheel! Lots of
> folks come up with 'electric superchargers' and **** but have no idea just
> what sort of power it takes to compress that much air that quickly.
>
http://www.diy-efi.org/diy_efi/archi.../msg00197.html
Actually, it does help in small engine applications.
A kid name Jason at my local track had a totally stock honda Accord
with a crude leaf blower setup. Not as good as NOS, but good.
He went from mid 17 sec 1/4 mile times to mid 16's.
These were HIS claims, but hey, an Iceman intake supposedly
gets you a thenth of a second, so, why would he be wrong?
The little bit of flow increase netted approx one second.
Granted, it prolly went from 120hp to 150, which is
not in nitrous territory, but it did improve.
He rigged a thottle so that the blower would fast idle
when the engine idled, because his car would surge & stall
if the blower was screaming at a closed buuterfly. Pobably
IAC related. He said it wasn't consistent, because the
leaf blower was mounted in such a way, that he had to open
the hood to start it, and if it stalled, he was "blowerless"
I'll get some digital pics this year if he still runs it.
He is always driving something "fangled" out there..
Mike V
10-02-2002, 01:31 AM
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Later in that same thread...
[Kevin: Who says that the leaf blower needs to run at a boost density ratio of 2?]
Let' say you had a 350 ci engine, running at wot, 3000 rpm. This is about 1400 lbm/hr or air
entering the engine. If the boost density ratio was about 2, then we have about 2800 lbm per hour
of air entering the engine. Assuming a specific heat of 1 kj/kg K and an inlet temp of about 290
K, with a compressor efficiency of about .7, this is about 30 kwatt, or 40 horsepower! You need
to get this power from somewhere, and if it's an electric motor, a 40 horsepower electric motor
is HUGE!! What I'm trying to say is your leafblower might put out a bunch of air flow, but not
when the pressure is twice atmospheric. If you used a mechanical device such as a belt driven
supercharger, you would get about 2800lbm/hr / .5 lbm/hp-hr/14 about 400 hp, but you would have to
subtract off the 40 hp to run the s.c. so net is 360.
Let' say you had a 350 ci engine, running at wot, 3000 rpm. This is about 1400 lbm/hr or air
entering the engine. If the boost density ratio was about 2, then we have about 2800 lbm per hour
of air entering the engine. Assuming a specific heat of 1 kj/kg K and an inlet temp of about 290
K, with a compressor efficiency of about .7, this is about 30 kwatt, or 40 horsepower! You need
to get this power from somewhere, and if it's an electric motor, a 40 horsepower electric motor
is HUGE!! What I'm trying to say is your leafblower might put out a bunch of air flow, but not
when the pressure is twice atmospheric. If you used a mechanical device such as a belt driven
supercharger, you would get about 2800lbm/hr / .5 lbm/hp-hr/14 about 400 hp, but you would have to
subtract off the 40 hp to run the s.c. so net is 360.
10-02-2002, 01:35 AM
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And still further in the thread...
[Kevin: Uh-oh... Could this enable the Iron Duke four to challenge the LO3?!? ]
Hi!
Thanks for showing us in matematical terms !
Your calculation just showed me that its possible......
I am Norwegian I am used to think in 1.9l four banger you are american,
350 is the natural thing....
350 is 5.735 litres thats 3 X 1.9l engines.
You clame that anything less than making the output times 2 of an engine is
not interesting?
The 1.9l needs 13.3HP to make 1 bar boost after your calculation...I would
be happy with 0.5bar thats 50% increase in power!!! I would need half the
output , thats 6.65 hp ....2 Leafblowers 3.32 hp each ....Thats about what
a leafblower gives .....
and it could easily be tuned to give 5-6 hp each !
thanks
Espen
Dont be embarrased .....I use to have it on my head all the time...
----------
Espen-- the increase in compressor HP as boost increases is non-linear. IF
it takes 14 HP to make 1 bar of boost , it will take less than 7 HP to make
.5 bar of boost.
Greg
[Kevin: Yes!!! :rockon: ]
]Hi!
Thanks for showing us in matematical terms !
Your calculation just showed me that its possible......
I am Norwegian I am used to think in 1.9l four banger you are american,
350 is the natural thing....
350 is 5.735 litres thats 3 X 1.9l engines.
You clame that anything less than making the output times 2 of an engine is
not interesting?
The 1.9l needs 13.3HP to make 1 bar boost after your calculation...I would
be happy with 0.5bar thats 50% increase in power!!! I would need half the
output , thats 6.65 hp ....2 Leafblowers 3.32 hp each ....Thats about what
a leafblower gives .....
and it could easily be tuned to give 5-6 hp each !
thanks
Espen
Dont be embarrased .....I use to have it on my head all the time...
----------
Espen-- the increase in compressor HP as boost increases is non-linear. IF
it takes 14 HP to make 1 bar of boost , it will take less than 7 HP to make
.5 bar of boost.
Greg
[Kevin: Yes!!! :rockon: ]
Last edited by Kevin Johnson; 10-02-2002 at 01:37 AM.
10-02-2002, 01:08 PM
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Car: 91 Red Sled
Axle/Gears: 10bolt Richmond 3.73 Torsen
I look at is in a simple way; Yes you can make more power with an electric supercharger but you're having to take mechanical energy, convert it into electrical, and then back into mechanical. With every change in energy there is power lost into the air (heat). A supercharger and a turbo use mechanical energy and recycle it. It's mechanical to mechanical, no middle man, no middle steps . So if you want to produce boost, why not get another engine to produce the boast....OR just use the current motor to make it's own 
. I believe you could get into more details and calculations but I think it's a waste of time (not everybody's time, just most of our time). HoneyWell probably knows what their doing and their electric supercharger is actually more complicated than a combo turbo/supercharger used on diesel train motors. With a combo you get the benifit of a supercharger at low engine speeds (turbo not spooled up fast enough to be efficient) and then the clutch disengauges and it's all run by exhaust gases for effectiveness.
How about designing a turbo with adjustable prop pitch so even at low engine speeds you could produce enough turbo speed to make boast then at higher speeds (past the engines peak torque) you could change the pitch to be just enough to maintain boast.
Then again I guess a wastegate does a good enough job and is more reliable right now.
There are so many cool technologies right now that just need to be combined for one function....SPEED .
Can you tell I'm sitting in a computer lab waiting to go to a Physics Lab?
. So if you want to produce boost, why not get another engine to produce the boast....OR just use the current motor to make it's own . I believe you could get into more details and calculations but I think it's a waste of time (not everybody's time, just most of our time). HoneyWell probably knows what their doing and their electric supercharger is actually more complicated than a combo turbo/supercharger used on diesel train motors. With a combo you get the benifit of a supercharger at low engine speeds (turbo not spooled up fast enough to be efficient) and then the clutch disengauges and it's all run by exhaust gases for effectiveness.How about designing a turbo with adjustable prop pitch so even at low engine speeds you could produce enough turbo speed to make boast then at higher speeds (past the engines peak torque) you could change the pitch to be just enough to maintain boast.
Then again I guess a wastegate does a good enough job and is more reliable right now.There are so many cool technologies right now that just need to be combined for one function....SPEED
.Can you tell I'm sitting in a computer lab waiting to go to a Physics Lab?
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06-13-2021 01:13 PM
