Dart CS Iron Eagle 215 72cc straight plug
2.05 Intake & 1.6 Exhaust
Lift=Valve lift while testing Previous CFM=original flow
CurrentCFM=flow after porting % Gain=flow improvement in
percent
Exhaust/Intake=Relationship between intake & exhaust flow
Flowed @ 28 in.
Intake Port Test Results
Lift
Previous CFM Current CFM
% Gain Exhaust/Intake
| 0.050 | 32.6 | 43.2 | 32.6 | 67.3 |
| 0.100 | 63.8 | 83.7 | 31.3 | 70.4 |
| 0.200 | 125.6 | 151.5 | 20.6 | 74.1 |
| 0.300 | 176.8 | 203.5 | 15.1 | 74.9 |
| 0.400 | 219.9 | 246.6 | 12.2 | 74.0 |
| 0.500 | 249.6 | 273.3 | 9.5 | 70.2 |
| 0.600 | 264.4 | 288.1 | 9.0 | 69.4 |
| 0.650 | 258.5 | 290.3 | 12.3 | 70.0 |
Exhaust Port Test Results
Lift
Previous CFM Current CFM
% Gain Exhast/Intake
| 0.050 | 34.3 | 29.1 | 20.0 | 67.3 |
| 0.100 | 50.6 | 58.9 | 16.5 | 70.4 |
| 0.200 | 107.5 | 112.3 | 4.5 | 74.1 |
| 0.300 | 141.2 | 152.5 | 8.0 | 74.9 |
| 0.400 | 164.8 | 182.4 | 10.7 | 74.0 |
| 0.500 | 176.0 | 192.0 | 9.1 | 70.2 |
| 0.600 | 179.2 | 200.0 | 11.6 | 69.4 |
| 0.650 | 176.0 | 203.2 | 15.5 | 70.0 |
Work done. Ported, flow tested, valve job, set up springs. $905.00 4/01