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 Post subject: Thermal Efficiency
PostPosted: Mon Jan 23, 2012 10:28 am 
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Joined: Wed May 11, 2011 3:01 am
Posts: 195
Location: Bellevue, NE
Year and Trim: 2002 SSEi
Does anyone know the the thermal efficiency percentage is for the Gen III M-90? I cannot seem to find that info anywhere. All I could find was Eaton's TVS supercharger which was 76% IIRC.

Also on the Series II what is the stock boost?

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2002 Bonneville SSEi 4+ years ownership 103xxx miles.
SD Headers self coated with ceramic header spray, Highflow CAT, Magnaflow muffler in place of resonator, Super 44 Mufflers, Solid Front Mount, Autolite 104's, Rear Spring Assists, Transgo Shift Kit, Intense PCM. My car is NHL certified :P


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 Post subject: Re: Thermal Efficiency
PostPosted: Mon Jan 23, 2012 11:22 am 
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Joined: Sun May 18, 2008 11:07 pm
Posts: 65489
Location: Oregon WCBF'04, '05, '06, '07, '08, '09, '10, '11 Survivor
Year and Trim: .
93 SSEi
95 SLE (SC)
97 Buick LeSabre
Flow:
Image

Horspower consumed (what it takes from the motor to spin it):
Image


Delta T (temperature over range, higher is worse):
Image

I have the data for the M90 Gen3 and Gen5 TE, but can't find it right now. Stock setups with the M90 typically produce about 7psi. Keep in mind, as boost increases, heat increases. Spinning it faster also COSTS more power. Both of these factors determine the law of diminishing returns. Each change in pulley diameter (smaller) nets less gain than the step before.

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