Electric Supercharger with Dyno Results
#1
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Electric Supercharger with Dyno Results
This is on an otherwise stock Scion FR-S.
Overlaid with a Vortech supercharged car on the same dyno.
Thread with all the details
Overlaid with a Vortech supercharged car on the same dyno.
Thread with all the details
Last edited by Scrappy Jack; 07-03-2013 at 11:23 AM. Reason: Made the link to the original thread more obvious.
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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.
Nice to see people taking a more serious approach to the subject.
#8
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.
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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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
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
#12
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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.)
#13
Altima at 7-8 psi.
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.
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.
Last edited by triple88a; 07-03-2013 at 02:16 PM.
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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.
#15
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
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
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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
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
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.
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
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
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.