|
Stage 1: Std height intake and exhaust with CNC
finished combustion chamber |
|
Valve Lift (inches) |
Intake Port Airflow (cfm) |
Exhaust Prot Airflow (cfm) |
Percent Difference |
| 0.400 |
255.0 |
205.0 |
80.4 |
| 0.700 |
376.8 |
283.0 |
75.1 |
| |
|
|
|
| Stage 2: Std
height intake and exhaust with level 1 port work (ports matched/bowl
blended) |
| Valve Lift (inches) |
Intake Port Airflow (cfm) |
Exhaust Prot Airflow (cfm) |
Percent Difference |
| 0.400 |
260.2 |
206.2 |
79.2 |
| 0.700 |
388.5 |
284.3 |
73.2 |
| |
|
|
|
| Stage 3: Std
height intake and exhaust with level 2 port work (full port and
polishing) |
| Valve Lift (inches) |
Intake Port Airflow (cfm) |
Exhaust Prot Airflow (cfm) |
Percent Difference |
| 0.400 |
287.9 |
218.5 |
75.9 |
| 0.700 |
405.3 |
307.8 |
75.9 |
| |
|
|
|
Stage 4:
Raised intake and std height exhaust with Level 3 port work on
intake
(intake development w/full port and polish) |
| Valve Lift (inches) |
Intake Port Airflow (cfm) |
Exhaust Prot Airflow (cfm) |
Percent Difference |
| 0.400 |
299.4 |
218.5 |
73.0 |
| 0.700 |
426.1 |
307.8 |
72.2 |
| |
|
|
|
Stage 5: Std
height intake and raised exhaust with Level 3 port work on exhaust
(exhaust development w/full port and polish) |
| Valve Lift (inches) |
Intake Port Airflow (cfm) |
Exhaust Prot Airflow (cfm) |
Percent Difference |
| 0.400 |
287.9 |
230.0 |
79.9 |
| 0.700 |
405.3 |
325.0 |
80.2 |
| |
|
|
|
Stage 6: Raised
intake and raised exhaust with Level 3 port work on both
(development and full port and polish of both intake and exhaust) |
| Valve Lift (inches) |
Intake Port Airflow (cfm) |
Exhaust Prot Airflow (cfm) |
Percent Difference |
| 0.400 |
299.4 |
230.0 |
76.8 |
| 0.700 |
426.1 |
325.0 |
76.3 |