Supercharger parasitic loss? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

TPNxl · 07-29-2020, 07:43 PM

Anyone know how to calculate the parasitic loss of a supercharger (the hp used to drive it), or a rough estimate given the size of the blower, RPM into the supercharger, efficiency curves, and the size of the engine? Alternatively, anybody know how much a stage 1 supercharger kit (ex. Overkill supercharger with Vortech V-3 head unit) draws?

The reason I ask is because I want to install an electric turbo (not the crap on eBay, a real one that's designed myself with a 10kW+ electric motor and 48V electric system), and I need to figure out how big I need to size the motor and batteries.

Thanks in advance!

co14camaro · 07-30-2020, 10:34 AM

Are you thinking of installing an e-turbo with the Overkill supercharger or just by itself? Mechanical parasitic loss is not the same as electronic drag. eTurbos require a large amperage draw quickly while running. How are you planning on charging the 48v system? IMHO an effective eTurbo system will have to be designed from the ground up to integrate with all the electronic systems otherwise your going to be chasing gremlins the entire time. Would be much easier and cheaper in the end to go Overkill.

DSX_Camaro · 07-30-2020, 05:51 PM

An electronic turbo would only be good for low end anyway and you'd want another source of boost afterwards to take over, i.e. Mercedes Benz current straight 6 AMG motor.

'10CamaroDude · 07-31-2020, 01:52 AM

Most superchargers can use 30-40HP just to turn it. The Hellcat engine's supercharger
takes 90HP total. They use a centrifical clutched pulley too.

Athletics101 · 07-31-2020, 04:46 PM

Cleetus did it.
Single turbo- https://youtu.be/7a_J2X88fSE
Twin turbo- https://youtu.be/_yrxbcB4CwA

xstuntman · 07-31-2020, 10:27 PM

I had no idea an electric turbo existed and that was pretty cool!

'10CamaroDude · 08-01-2020, 01:29 AM

Quote:

Originally Posted by xstuntman

I had no idea an electric turbo existed and that was pretty cool!

They have been around, but just not all that popular. There was one
many years ago, the something Knight, something or other.

New cars are already being made with electric assisted boost, till the
regular turbo spools up. "Twincharger" engines use both a supercharger, and
turbo. The supercharger provides boost till the turbo catches up, then the
SC is decoupled. They're just switching over to eletric ones.

07-29-2020, 07:43 PM	#1
TPNxl Drives: 2011 Mazda RX-8 Join Date: Jul 2020 Location: Dallas Posts: 3	Supercharger parasitic loss? Anyone know how to calculate the parasitic loss of a supercharger (the hp used to drive it), or a rough estimate given the size of the blower, RPM into the supercharger, efficiency curves, and the size of the engine? Alternatively, anybody know how much a stage 1 supercharger kit (ex. Overkill supercharger with Vortech V-3 head unit) draws? The reason I ask is because I want to install an electric turbo (not the crap on eBay, a real one that's designed myself with a 10kW+ electric motor and 48V electric system), and I need to figure out how big I need to size the motor and batteries. Thanks in advance!

07-30-2020, 05:51 PM	#3
DSX_Camaro Drives: 2013 SW 2LT/RS LFX/AY6 Join Date: Feb 2013 Location: Orlando, FL Posts: 1,741	An electronic turbo would only be good for low end anyway and you'd want another source of boost afterwards to take over, i.e. Mercedes Benz current straight 6 AMG motor. __________________ K&N CAI, 1LE Strut Tower Brace, Elite Engineering Catch Can and Clean Side Separator, Apex Scoop w/ Washer Relocation Kit, CTS Front Calipers and Rotors, JacFab Ported Intake Manifold, JacFab Intake Manifold Spacer, 80mm Overkill Throttle Body, SS Brake Lines, Ideal Garage Master Cylinder, Monster Twin Disc Clutch, NPP Retrofit w/ Magnaflow Resonated X, ARH Catless Downpipes, JRE Built 3.45 Diff, 1LE Axles, 1LE Hubs, Overkill Tuned, BMR Anti Wheel-hop Kit Stage I, ACS TL1 Hood Insert, ZL1 Spoiler

07-31-2020, 04:46 PM	#5
Athletics101 Drives: 5th Gen L99 Join Date: Nov 2017 Location: Lake Havasu City Posts: 244	Cleetus did it. Single turbo- https://youtu.be/7a_J2X88fSE Twin turbo- https://youtu.be/_yrxbcB4CwA __________________ LSA conversion 2.5 upper 10% lower, L99 converted to LS3. TSP 229/244 cam, TSP LS3 ported and milled heads milled .015,Kooks LT’s no cats, Roto Fab, Borla arak cat back. 3200 stall,Forgestar F14 18’s and drag radials, pedders coil overs, BMR trailing arms & adjustable toe rods, mildly stripped Interior 685/613 on E 610/571 on 91

07-31-2020, 10:27 PM	#6
xstuntman Drives: 2012 Victory Red LFX Join Date: Dec 2012 Location: west central Texas Posts: 1,310	I had no idea an electric turbo existed and that was pretty cool! __________________ 2018 SS wheels, red Heritage grille, actual driving lights, ZL1 strut tower brace, GM Performance billet aluminum fuel door, front grille Bowtie delete, painted red rotors and calipers, 1/4 window American Flags, splash guards, AEM dry panel air filter.

07-30-2020, 10:34 AM	#2
co14camaro Drives: 2014 Camaro Join Date: Feb 2020 Location: Aurora, CO Posts: 66	Are you thinking of installing an e-turbo with the Overkill supercharger or just by itself? Mechanical parasitic loss is not the same as electronic drag. eTurbos require a large amperage draw quickly while running. How are you planning on charging the 48v system? IMHO an effective eTurbo system will have to be designed from the ground up to integrate with all the electronic systems otherwise your going to be chasing gremlins the entire time. Would be much easier and cheaper in the end to go Overkill.

07-31-2020, 01:52 AM	#4
'10CamaroDude Account Suspended Drives: 2010 Camaro LS Join Date: Nov 2019 Location: Pgh Posts: 739 View My Garage	Most superchargers can use 30-40HP just to turn it. The Hellcat engine's supercharger takes 90HP total. They use a centrifical clutched pulley too.