Electric Supercharger with Dyno Results
3 Attachment(s)
This is on an otherwise stock Scion FR-S.
https://www.miataturbo.net/attachmen...ine=1372858549 https://www.miataturbo.net/attachmen...ine=1372858549 Overlaid with a Vortech supercharged car on the same dyno. https://www.miataturbo.net/attachmen...ine=1372858549 Thread with all the details |
I wish in understood what I was looking at.
can you please give me cliffs on each setup for the following pulls: LZY372.003 - Stock? LZY372.004 LZY372.007 LZY372.011 S13057.003 - Vortec S/C |
So, an electronic supercharger made 30hp? Any more info on the kit? The thing must push some decent air to still be making boost at redline, this can't be your average ebay turbonator superchager.
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That is incredibly interesting. It seems as though because this was a first attempt he hasn't even really optimized everything for the most possible benefit.
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Simply at a glance, judging by the fact that they are using an RC-style three-phase BLDC motor and a suitably beefy motor controller, this is one "electric supercharger" which I could actually believe might have a positive effect. I'm not sure if I quite believe +80 ft/lbs (that dip in the "before" run seems fishy to me) but it's something anyway.
Nice to see people taking a more serious approach to the subject. |
The hair dryer made 2-3 hp from the way i see it... Either that or it lost 2-3 hp everywhere. Of course the OP cant be any more vague with what each plot is.
It could also be hooked up on and off in which case you LOSE power since the powered off hair dryer is now slowing the air flow. |
I totally missed the "Info on the Kit" link in the OP. Pretty cool that it actually seems to work.
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Joe, perhaps you can shed some light on how much power from the electric motor it takes to make 1 psi?
There was an article on a twin screw supercharger setup where the guy used electric motors, Not sure if it was 3 or 6 or some stupid number but thats how many motors it took to provide the 20hp required to turn the sc. |
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is that an altima or sentra?
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Originally Posted by Braineack
(Post 1027798)
I wish in understood what I was looking at.
can you please give me cliffs on each setup for the following pulls: LZY372.003 - Stock LZY372.004 - With electric supercharger LZY372.007 - With electric supercharger and tune? LZY372.011 - I think that's electric SC and tune, but not sure S13057.003 - Vortec S/C
Originally Posted by Joe Perez
(Post 1027808)
[...]I'm not sure if I quite believe +80 ft/lbs (that dip in the "before" run seems fishy to me) but it's something anyway.
Originally Posted by triple88a
(Post 1027811)
The hair dryer made 2-3 hp from the way i see it... Either that or it lost 2-3 hp everywhere. Of course the OP cant be any more vague with what each plot is.
:party: |
Originally Posted by triple88a
(Post 1027813)
Joe, perhaps you can shed some light on how much power from the electric motor it takes to make 1 psi?
It's not quite apples-to-apples. The centrifugal compressor depicted on the Scion should provide slightly better efficiency (provided they can get the RPMs they need, which is possible, since some of those RC motors can do >50,000 RPM unloaded), and the BLDC motor itself is massively more efficient than the brushed starter motors. But probably not 10x more efficient. I honestly can't give you an answer here. Like I said, I am doubtful about the specific numbers which they are claiming, but of all of the cheapish "electric motor connected to a centrifugal fan" designs which I have seen, this is the only one which looks as though it might actually have the potential to do something, judging solely by the apparent quality of the parts involved (specifically the motor and controller.) |
Originally Posted by Braineack
(Post 1027819)
is that an altima or sentra?
Heres the article. http://www.turbomagazine.com/tech/04..._supercharger/ To make that "75% torque" i'm expecting at least 3-4 psi.. if it takes 3 giant motors to power a twin screw sc, i highly doubt that little 1.5" motor will be able to deliver 10-15hp at 50+k rpm to turn the centrifugal setup. Long story short unless the tester is the op and a worthy source, i'd say theres some 50% dyno correction going on. |
That to me looks like a lot of extra weight. 3 large batteries, thick wires, 3 large motors. It had better make some decent power to add all of that. Obviously a turbo or traditional supercharger adds weight too, but they also increase power dramatically. I might be reading those graphs wrong but doesn't look that great to me.
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Yeah,
3 batteries, even little ones, is a TON of weight. Then the motors. Then you still have what looks like a normal supercharger, just not connected via belt. fail fail fail I always laugh when people overcomplicate the everliving crap out of things only to end with mediocrity and fail hard. You want more torque outa your brz/frs? get the Innovate mp62 sc You want more torque outa your miata? mp62 sc it You want a LOT more torque and power from your miata? turbo it :party: |
Originally Posted by 18psi
(Post 1027966)
Yeah,
3 batteries, even little ones, is a TON of weight. Then the motors. Then you still have what looks like a normal supercharger, just not connected via belt. fail fail fail |
Originally Posted by triple88a
(Post 1027971)
10psi at 1k rpm sounds like fun though.
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lolol just get a 100 shot of nitrous and spray when starting the car...ALLOFIT at 300rplm
/Techsalvager |
That starter motor driven roots setup is old as hell, I remember seeing it many years ago. Lead acid batteries, starter motors, roots blower, on an automatic toyota. Nothing about that recipe is good.
I found the specs on that brushless centrifugal unit at FTS-TQ25024V - New site Max airflow: ~400 CFM Supported engine power: up to 250 HP Typical base engine HP: 100-240 Typical peak torque gain: 30-40% Pressure range: up to 1.3 PR Motor efficiency: ~90-94% Motor type: brushless w/ 3” leads Compressor efficiency: 72-74% Lubrication: sealed ceramic bearings Weight: 4.0 lbs. Drive power: 3500 Watts Rating @ 20 C: 2 minutes (continuous) Rating @ 50 C: 1 minutes (continuous) Maintenance: None http://www.phantomsuperchargers.com/...526723.jpg?766 http://www.phantomsuperchargers.com/...89697_orig.jpg Im assuming it runs on 12v (so 3 cell LiPo could be used instead of lead acid car batteries) and assuming the 3500 watts is accurate, that would mean that it can pull nearly 300A :eek: I dont know how much its really pulling to make some good boost, but I think its safe to assume it would take some serious battery to run it. LiPo or LiFePo is going to be a must, imo. |
Originally Posted by Full_Tilt_Boogie
(Post 1027978)
That starter motor driven roots setup is old as hell, I remember seeing it many years ago. Lead acid batteries, starter motors, roots blower, on an automatic toyota. Nothing about that recipe is good.
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