 
     |
| Electric Supercharge (Page 1/3) |
|
sanderson231
|
DEC 27, 04:43 PM
|
|
Seems like electric supercharger technology has finally progressed past over-hyped leaf blowers
https://torqamp.com/use-cases/
The TORQAMP product is a high speed centrifugal compressor driven by an ~7HP electric motor. The motor is driven by a 48V power from a lithium ion polymer battery power supply. A 500 watt charger supplied from the car's 12V system recharges the lithium battery. The compressor only runs at WOT. Given the size of the motor and the charger the duty cycle would be limited to perhaps 20%.
Interesting dyno results but the price is an issue at 2500 euros.
------------------
formerly known as sanderson
1984 Quad 4
1886 SE 2.8L
1988 4.9L Cadillac
1988 3800 Supercharged
|
|
|
|
Notorio
|
DEC 27, 06:20 PM
|
|
| quote | Originally posted by sanderson231:
.. Interesting dyno results but the price is an issue at 2500 euros.
|
|
I'd like to nominate YOU to contact them and offer to provide Fiero data.  Perhaps they offer a much lower price to people who volunteer to outfit a vehicle/engine type they haven't tested yet??
|
|
|
|
sanderson231
|
DEC 27, 06:27 PM
|
|
|
I'm working to get a stock 2.8L back on the road again. I may just see if they'll cut a deal. ------------------
formerly known as sanderson
1984 Quad 4
1886 SE 2.8L
1988 4.9L Cadillac
1988 3800 Supercharged
|
|
|
|
cvxjet
|
DEC 27, 06:28 PM
|
|
I remember my neighbor's son bought an "Electric supercharger" off Ebay......It was small and obviously would not do anything- I told him he should have asked me first.
Maybe the abilities have progressed....
|
|
|
|
pmbrunelle
|
DEC 27, 07:15 PM
|
|
From their website:
This is way undersized for any kind of car.
You might use this to give a low-end kick to a snowmobile or motorcycle engine.[This message has been edited by pmbrunelle (edited 12-27-2022).]
|
|
|
|
skywurz
|
DEC 27, 07:35 PM
|
|
| quote | Originally posted by pmbrunelle:
From their website:
This is way undersized for any kind of car.
You might use this to give a low-end kick to a snowmobile or motorcycle engine.
|
|
This is what I have always seen with all electric SC/Turbo gimmick. The units in no way can provide enough pressure to keep up with standard demands let alone create any sort of psi for boost.
Edit: Pretty sure the math works out to 334CFM output. a 2.8 standard probably draws something like 200cfm naturally. so you would be getting 134cfm of additional force of air for the 8 or 10 seconds of boost you get out of that system...[This message has been edited by skywurz (edited 12-27-2022).]
|
|
|
|
sanderson231
|
DEC 27, 07:43 PM
|
|
A 2.8L at 4000 rpm with a volumetric efficiency of 75% eats 10.8 lbs/min of air at 100 kPa and 60 'F. That falls in the middle of the curve.
Because the compressor curve falls off at high flow rates (high RPM) the effect on peak HP isn't like a turbo where you get high rpm HP. The effect is more like variable valve timing where you get low and mid-range power. We have a 2017 Honda Accord with a 4 cylinder 2.4L w/ VVT and direct injection. Amazing engine - I don't know why anyone would buy the V-6 Accord.
------------------
formerly known as sanderson
1984 Quad 4
1886 SE 2.8L
1988 4.9L Cadillac
1988 3800 Supercharged[This message has been edited by sanderson231 (edited 12-27-2022).]
|
|
|
|
skywurz
|
DEC 27, 07:53 PM
|
|
|
the other question is how much flow are you getting through that when its not boosting. Does it become an obstruction?
|
|
|
|
sanderson231
|
DEC 27, 07:54 PM
|
|
| quote | Originally posted by skywurz:
Edit: Pretty sure the math works out to 334CFM output. a 2.8 standard probably draws something like 200cfm naturally. so you would be getting 134cfm of additional force of air for the 8 or 10 seconds of boost you get out of that system...
|
|
Did you divide the RPMs by 2?
|
|
|
|
skywurz
|
DEC 27, 08:04 PM
|
|
|
173ci 6000RPM 70%VE = 200ish
|
|
|
