Honda/Acura |
Engine Code | Engine Type | Type |
Cam |
Lift (mm) |
Duration |
Part Number | Note |
B16A-B, B17A, B18C1-5 | 1.6L-1.8L DOHC VTEC | Stage 1 |
Intake |
11.9 |
264° |
| Valvetrain upgrade recommended. CARB Exempt |
Exhaust |
11.0 |
259° |
Stage 2 |
Intake |
12.4 |
275° |
|
Valvetrain upgrade required. |
Exhaust |
11.9 |
270° |
Stage 3 |
Intake |
12.8 |
272° |
|
Valvetrain upgrade required. |
Exhaust |
11.9 |
280° |
Turbo 1 |
Intake |
10.4 |
223° |
|
Valvetrain upgrade recommended. |
Exhaust |
10.0 |
227° |
Turbo 2 |
Intake |
11.0 |
231° |
|
Valvetrain upgrade recommended. |
Exhaust |
10.6 |
236° |
Pro 1 |
Intake |
12.6 |
264° |
|
Valvetrain upgrade required. |
Exhaust |
11.9 |
264° |
Pro 2 |
Intake |
12.8 |
270° |
|
Valvetrain upgrade required. |
Exhaust |
12.0 |
276° |
Pro3 |
Intake |
13.0 |
277° |
|
Valvetrain upgrade required. |
Exhaust |
12.4 |
284° |
F20C, F22C |
2.0/2.2L DOHC VTEC |
Stage 2 |
Intake |
13.6 |
272° |
|
Valvetrain upgrade required. |
Exhaust |
12.6 |
276° |
Stage 3 |
Intake |
14.0 |
278° |
|
Valvetrain upgrade required. |
Exhaust |
13.0 |
282° |
Turbo 2 |
Intake |
12.8 |
251° |
|
Valvetrain upgrade recommended. |
Exhaust |
11.8 |
250° |
H22A, F20B |
2.0/2.2L DOHC VTEC |
Stage 1 |
Intake |
12.3 |
264° |
| Valvetrain upgrade recommended. CARB Exempt |
Exhaust |
11.3 |
266° |
Stage 2 |
Intake |
12.8 |
272° |
|
Valvetrain upgrade required. |
Exhaust |
11.9 |
280° |
Turbo 1 |
Intake |
11.4 |
235° |
|
Valvetrain upgrade recommended. |
Exhaust |
10.4 |
230° |
Turbo 2 |
Intake |
11.0 |
231° |
|
Valvetrain upgrade recommended. |
Exhaust |
10.6 |
236° |
Pro 1 |
Intake |
12.6 |
264° |
|
Valvetrain upgrade required. |
Exhaust |
11.9 |
264° |
Pro2 |
Intake |
12.8 |
272° |
|
Valvetrain upgrade required. |
Exhaust |
12.0 |
276° |
Pro 3 |
Intake |
13.0 |
277° |
|
Valvetrain upgrade required. |
Exhaust |
12.4 |
284° |
K20A/A2 / Z1/Z2/Z3, K24A2 |
2.0/2.4L DOHC i-VTEC | Stage 1 |
Intake |
13.5 |
266° |
|
Valvetrain upgrade recommended. |
Exhaust |
12.5 |
262° |
Stage 2 |
Intake |
13.6 |
272° |
|
Valvetrain upgrade required. |
Exhaust |
12.6 |
276° |
Stage 3 |
Intake |
14.0 |
276° |
|
Valvetrain upgrade required. |
Exhaust |
13.0 |
282° |
Turbo 1 |
Intake |
12.8 |
245° |
|
Valvetrain upgrade recommended. |
Exhaust |
11.8 |
250° |
Turbo 2 |
Intake |
12.9 |
251° |
|
Valvetrain upgrade recommended. |
Exhaust |
11.8 |
254° |
K20A3, K24A1/A3/A4/A8 |
2.0/2.4L DOHC i-VTEC | Stage 1 |
Intake |
11.4 |
233° |
|
Valvetrain upgrade recommended. |
Exhaust |
11.4 |
233° |
Stage 2 |
Intake |
12.3 |
241° |
|
Valvetrain upgrade required. |
Exhaust |
11.8 |
246° |
Stage 3 |
Intake |
12.8 |
251° |
|
Valvetrain upgrade required. |
Exhaust |
11.8 |
256° |
Turbo 1 |
Intake |
10.4 |
220° |
| Valvetrain upgrade recommended |
Exhaust |
10.4 |
220° |
Mitsubishi |
Engine Code | Engine Type | Type |
Cam |
Lift (mm) |
Duration | Part Number | Note |
4G63BT |
2.0L DOHC 97-06 EVO IV-VIII | Set |
Intake |
11.0 |
264° |
|
Valvetrain upgrade recommended. |
Exhaust |
12.0 |
272° |
264 Intake |
Intake |
11.0 |
264° |
|
Valvetrain upgrade recommended. |
272 Exhaust |
Exhaust |
12.0 |
272° |
|
Valvetrain upgrade recommended. |