loominaz34 Posted March 29, 2004 Report Share Posted March 29, 2004 Hey all i was bored this morning and i thought of putting a supercharger in my future Z-34 but I've no idea how much air the engine needs. so how much air would a 3.4 liter take in at most without boost? thanks. Quote Link to comment Share on other sites More sharing options...
sonyman87 Posted March 29, 2004 Report Share Posted March 29, 2004 a little over 360cfm at 6000rpms and a little over 420cfm at 7000rpms for the 3.4dohc calculations based on a 2.5L motor spinning at 6000rpms requires 265cfm Quote Link to comment Share on other sites More sharing options...
DaveFromColorado Posted March 30, 2004 Report Share Posted March 30, 2004 using a "hotrod math" calculator based on a typical engine with a VE of 1, and 207 CI here are the numbers per RPM... 1000: 59.75 1500: 89.63 2000: 119.51 2500: 149.39 3000: 179.27 3500: 209.15 4000: 239.03 4500: 268.90 5000: 298.78 5500: 328.66 6000: 358.54 6500: 388.42 7000: 418.30 Quote Link to comment Share on other sites More sharing options...
sonyman87 Posted March 30, 2004 Report Share Posted March 30, 2004 i was close good, info Quote Link to comment Share on other sites More sharing options...
MaroonRegal Posted March 30, 2004 Report Share Posted March 30, 2004 I've never met an NA engine with a VE of 1.0 Those numbers aren't too far off, but try doing the calculation with a VE of about .8 Quote Link to comment Share on other sites More sharing options...
DaveFromColorado Posted March 30, 2004 Report Share Posted March 30, 2004 here's the calculations side by side 207 CI CFM calculation per RPM .....VE:..............|............VE:.......... .....1.0..............|............0.8.......... ........................|........................... 1000: 059.75...|...1000: 047.80 1500: 089.63...|...1500: 071.70 2000: 119.51...|...2000: 095.61 2500: 149.39...|...2500: 119.51 3000: 179.27...|...3000: 143.41 3500: 209.15...|...3500: 167.32 4000: 239.03...|...4000: 191.22 4500: 268.90...|...4500: 215.12 5000: 298.78...|...5000: 239.03 5500: 328.66...|...5500: 262.93 6000: 358.54...|...6000: 286.83 6500: 388.42...|...6500: 310.73 7000: 418.30...|...7000: 334.64 Quote Link to comment Share on other sites More sharing options...
maybe2fast Posted March 30, 2004 Report Share Posted March 30, 2004 I hate the fact that I have to ask what is a VE? Lets see the calculation for the 3.1 Quote Link to comment Share on other sites More sharing options...
sonyman87 Posted March 30, 2004 Report Share Posted March 30, 2004 3.1L RPMS CFM 1000 54.47794118 1500 81.71691176 2000 108.9558824 2500 136.1948529 3000 163.4338235 3500 190.6727941 4000 217.9117647 4500 245.1507353 5000 272.3897059 5500 299.6286765 6000 326.8676471 6500 354.1066176 7000 381.3455882 3.8L RPMS CFM 1000 66.77941176 1500 100.1691176 2000 133.5588235 2500 166.9485294 3000 200.3382353 3500 233.7279412 4000 267.1176471 4500 300.5073529 5000 333.8970588 5500 367.2867647 6000 400.6764706 6500 434.0661765 7000 467.4558824 Quote Link to comment Share on other sites More sharing options...
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