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Superchargers...electric & others ?

Superchargers...electric & others ?

BOOSST
Banned
1,080
08-09-2018, 03:13 AM
#1
I know, I know... don't shoot me straght away for this thread :blink:

whilst I understand MR2's and general stuff I have actually dealt with, I am ok. However.... I am still wondering about the value or non value of electric superchargers. I fully appreciate no electric charger could even begin to compare with something like the TRD etc. But there has to be some sort of validity to these with so many on the market, ranging from £20 to £300 plus I expect.

So,"in kind words" tell me why if the aim of an intake is to get as much air as possible into the engine, why, a decent electric supercharger is going to be no good...

Why am I asking, because I eventuallly plan to Twin Turbo my V6 lump, but that wlll take time, research and a bucketload of wonga obviously, so was considering what else i might be able to do in the meantime to enhance the power...

Ok.. over to you Confusedmoke:
BOOSST
08-09-2018, 03:13 AM #1

I know, I know... don't shoot me straght away for this thread :blink:

whilst I understand MR2's and general stuff I have actually dealt with, I am ok. However.... I am still wondering about the value or non value of electric superchargers. I fully appreciate no electric charger could even begin to compare with something like the TRD etc. But there has to be some sort of validity to these with so many on the market, ranging from £20 to £300 plus I expect.

So,"in kind words" tell me why if the aim of an intake is to get as much air as possible into the engine, why, a decent electric supercharger is going to be no good...

Why am I asking, because I eventuallly plan to Twin Turbo my V6 lump, but that wlll take time, research and a bucketload of wonga obviously, so was considering what else i might be able to do in the meantime to enhance the power...

Ok.. over to you Confusedmoke:

Sparkystav
Administrator
14,683
08-09-2018, 03:48 AM
#2
the first question to ask.

why do no OEM's do it?


In my understanding certainly the little ones dont even spin fast enough to allow the normal airflow to get through, let alone add extra.

OutlawJapClub Admin Team
Sparkystav
08-09-2018, 03:48 AM #2

the first question to ask.

why do no OEM's do it?


In my understanding certainly the little ones dont even spin fast enough to allow the normal airflow to get through, let alone add extra.


OutlawJapClub Admin Team

jimxms
Posting Freak
2,473
08-09-2018, 03:56 AM
#3
I read somewhere that for an electric supercharger to actually offer any benefit, it would need to be plugged directly into the mains. Reason being, that if it were to run off a battery, not only would it need to be HUGE, but the alternator used to recharge it would also drain more power from the engine than the electric supercharger could provide in the first place.


The ones you see on eBay don't even touch the tip of what is required to produce additional power. We're talking a stupidly large motor, some 0AWG cables, a battery the size of the boot and back seats....well ya get the idea.
jimxms
08-09-2018, 03:56 AM #3

I read somewhere that for an electric supercharger to actually offer any benefit, it would need to be plugged directly into the mains. Reason being, that if it were to run off a battery, not only would it need to be HUGE, but the alternator used to recharge it would also drain more power from the engine than the electric supercharger could provide in the first place.


The ones you see on eBay don't even touch the tip of what is required to produce additional power. We're talking a stupidly large motor, some 0AWG cables, a battery the size of the boot and back seats....well ya get the idea.

dimis
Posting Freak
3,795
08-09-2018, 04:01 AM
#4
I read the new BMW M3 will have an electric turbocharger in combination with a proper turbocharger.

LEXUS IS200 - The most fun car to go sideways
dimis
08-09-2018, 04:01 AM #4

I read the new BMW M3 will have an electric turbocharger in combination with a proper turbocharger.


LEXUS IS200 - The most fun car to go sideways

jimxms
Posting Freak
2,473
08-09-2018, 04:12 AM
#5
dimis I read the new BMW M3 will have an electric turbocharger in combination with a proper turbocharger.

I could be wrong but isn't that an electric-assisted turbo going in the new M3?

Not a turbo in it's own right but an extension of an existing turbo that uses an electric motor to begin spinning up the impeller so that there is very little turbo lag.

I don't think it actually can spin it fast enough to offer any tangible positive displacement though?
jimxms
08-09-2018, 04:12 AM #5

dimis I read the new BMW M3 will have an electric turbocharger in combination with a proper turbocharger.

I could be wrong but isn't that an electric-assisted turbo going in the new M3?

Not a turbo in it's own right but an extension of an existing turbo that uses an electric motor to begin spinning up the impeller so that there is very little turbo lag.

I don't think it actually can spin it fast enough to offer any tangible positive displacement though?

Stoney
Posting Freak
2,117
08-09-2018, 07:23 AM
#6
As I said when you mentioned this before Mikey, I just don't think it can generate the airflow needed to increase intake pressure. Ones I have seen are like PC fans, and are all hype and no results. Much like paying £20 for a 20p resistor to try to put on a sensor to try to somehow boost power. But by all means give it a go and measure the boost, if any, created. I don't think I have seen conclusive proof of them being ****, but most of the theory and general opinion seems to point that way.

[Image: tempsig2.jpg]
Confusedad: It was a tough call to make, but the Supercharged IS200 is being retired. Confusedad:
Stoney
08-09-2018, 07:23 AM #6

As I said when you mentioned this before Mikey, I just don't think it can generate the airflow needed to increase intake pressure. Ones I have seen are like PC fans, and are all hype and no results. Much like paying £20 for a 20p resistor to try to put on a sensor to try to somehow boost power. But by all means give it a go and measure the boost, if any, created. I don't think I have seen conclusive proof of them being ****, but most of the theory and general opinion seems to point that way.


[Image: tempsig2.jpg]
Confusedad: It was a tough call to make, but the Supercharged IS200 is being retired. Confusedad:

Phil01
Posting Freak
2,004
08-09-2018, 07:32 AM
#7
I'm with Mikey on this one as I have wondered about this a year or so back.
All workshops use compressed air and have receivers to store the air and 99.9% of these are run by electric, yes I know they need a hefty current to run but so does your heated rear window.
I dont think pressure would be to much of an issue to overcome but Volume CFM is the greater concern

1990 Eunos Roadster in Mariner DU blue
Cobalt cat back, Decat pipe, 15in Red Rota GT3 alloys, Toyo tyres, Lowered on Coil overs, Red anti roll bars, 14degree timing mod, white dash kit, illuminated side marker lights,
Halo ring headlights, OEM windblocker, Bluetooth streaming HU, Blue leather handbrake and gear lever gaitor, Centre brake/tail light mod, Blue velour door cards, Polished cam cover, Polished front strut bar, 4xheadrest speakers, JDM floor mats, Suede semi dish steering wheel,
Phil01
08-09-2018, 07:32 AM #7

I'm with Mikey on this one as I have wondered about this a year or so back.
All workshops use compressed air and have receivers to store the air and 99.9% of these are run by electric, yes I know they need a hefty current to run but so does your heated rear window.
I dont think pressure would be to much of an issue to overcome but Volume CFM is the greater concern


1990 Eunos Roadster in Mariner DU blue
Cobalt cat back, Decat pipe, 15in Red Rota GT3 alloys, Toyo tyres, Lowered on Coil overs, Red anti roll bars, 14degree timing mod, white dash kit, illuminated side marker lights,
Halo ring headlights, OEM windblocker, Bluetooth streaming HU, Blue leather handbrake and gear lever gaitor, Centre brake/tail light mod, Blue velour door cards, Polished cam cover, Polished front strut bar, 4xheadrest speakers, JDM floor mats, Suede semi dish steering wheel,

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