Brodix Track I 215 Small block chevy 66cc chambers
2.08 Intake & 1.6 Exhaust
These heads had previous minor porting. No previous flow test results done
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 | 49.6 | 67.6 | ||
| 0.100 | 88.2 | 65.9 | ||
| 0.200 | 154.5 | 65.4 | ||
| 0.300 | 210.9 | 67.7 | ||
| 0.400 | 249.6 | 73.1 | ||
| 0.500 | 281.4 | 72.8 | ||
| 0.600 | 294.8 | 72.7 | ||
| 0.650 | 299.3 | 73.8 | ||
| 0.700 | 301.5 | 74.3 |
Exhaust Port Test Results
Lift
Previous CFM Current CFM
% Gain Exhaust/Intake
| 0.050 | 33.5 | 67.6 | ||
| 0.100 | 58.1 | 65.9 | ||
| 0.200 | 101.1 | 65.4 | ||
| 0.300 | 142.8 | 67.7 | ||
| 0.400 | 182.4 | 73.1 | ||
| 0.500 | 204.8 | 72.8 | ||
| 0.600 | 214.4 | 72.7 | ||
| 0.650 | 220.8 | 73.8 | ||
| 0.700 | 224.0 | 74.3 |
Work done. Porting, Flow Test, Valve Job, Set up springs. $805.00 4/01