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In the OP, it says:
SR20DE MAF 91-94 Sentra SER, part # 53J00
50mm 250 WHP-----------Bored 54mm 290 WHP
My question is, does the stock 53J00 MAF max out at 250whp because the output voltage is 5V at 250whp, or because the 50mm opening is at choked flow and will not physically flow more air than 250whp worth?
Edit:
I did some calculations and the flow velocity of air through a 50mm opening of a 2 liter engine at 100% VE and 8000 rpm is ~152mph, which is well below the speed of sound where choked flow occurs.
Dave
Last edited by dfddfd2; 11-14-2009 at 10:30 PM.
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