FS Camshaft Specifications
FS01 intake cam:
Adv. Lift: 0.312"
Adv. Duration: 238° @ 0.003"
Duration: ≈ 189° @ 0.050"
Open: 8° BTDC
Close: 50° ABDC
FS01 exhaust cam:
Adv. Lift: 0.326"
Adv. Duration: 242° @ 0.003"
Duration: ≈ 190° @ 0.050"
Open: 54° BBDC
Close: 8° ATDC
Overlap: 16°
FSD7 intake cam:
Adv. Lift: 0.3405"
Valve Lift: ≈ 0.3305"
Adv. Duration: 230° @ 0.003"
Duration: 198° @ 0.050"
Open: 2° BTDC
Close: 48° ABDC
FSD7 exhaust cam:
Adv. Lift: 0.3218"
Valve Lift: ≈ 0.3118"
Adv. Duration: 230° @ 0.003"
Duration: 200° @ 0.050"
Open: 48° BBDC
Close: 2° ATDC
Overlap: 4°
FSH9 intake cam:
Adv. Lift: 0.3405"
Valve Lift: ≈ 0.3305"
Adv. Duration: 241° @ 0.003"
Duration: 210° @ 0.050"
Open: 5° BTDC
Closed: 56° ABDC
FS9P exhaust cam:
Adv. Lift: 0.3405"
Valve Lift: ≈ 0.3305"
Adv. Duration: 241° @ 0.003"
Duration: 210° @ 0.050"
Open: 48.5° BBDC
Close: 12.5° ATDC
Overlap: 17.5°
FS9P-A exhaust cam:
Adv. Lift: 0.3405"
Valve Lift: ≈ 0.3305"
Adv. Duration: 241° @ 0.003"
Duration: 210° @ 0.050"
Open: 55.5° BBDC
Close: 5.5° ATDC
Overlap: 10.5°
FP39: intake cam:
Adv. Lift: 0.3131"
Valve Lift: ≈ 0.3031"
Adv. Duration: 225° @ 0.003"
Open: 0° BTDC
Close: 45° ABDC
FP47: exhaust cam:
Adv. Lift: 0.3218"
Valve Lift: ≈ 0.3118"
Adv. Duration: 230° @ 0.003"
Open: 44° BBDC
Closing: 6° ATDC
Overlap: 6°
Adv. Lift: 0.312"
Adv. Duration: 238° @ 0.003"
Duration: ≈ 189° @ 0.050"
Open: 8° BTDC
Close: 50° ABDC
FS01 exhaust cam:
Adv. Lift: 0.326"
Adv. Duration: 242° @ 0.003"
Duration: ≈ 190° @ 0.050"
Open: 54° BBDC
Close: 8° ATDC
Overlap: 16°
FSD7 intake cam:
Adv. Lift: 0.3405"
Valve Lift: ≈ 0.3305"
Adv. Duration: 230° @ 0.003"
Duration: 198° @ 0.050"
Open: 2° BTDC
Close: 48° ABDC
FSD7 exhaust cam:
Adv. Lift: 0.3218"
Valve Lift: ≈ 0.3118"
Adv. Duration: 230° @ 0.003"
Duration: 200° @ 0.050"
Open: 48° BBDC
Close: 2° ATDC
Overlap: 4°
FSH9 intake cam:
Adv. Lift: 0.3405"
Valve Lift: ≈ 0.3305"
Adv. Duration: 241° @ 0.003"
Duration: 210° @ 0.050"
Open: 5° BTDC
Closed: 56° ABDC
FS9P exhaust cam:
Adv. Lift: 0.3405"
Valve Lift: ≈ 0.3305"
Adv. Duration: 241° @ 0.003"
Duration: 210° @ 0.050"
Open: 48.5° BBDC
Close: 12.5° ATDC
Overlap: 17.5°
FS9P-A exhaust cam:
Adv. Lift: 0.3405"
Valve Lift: ≈ 0.3305"
Adv. Duration: 241° @ 0.003"
Duration: 210° @ 0.050"
Open: 55.5° BBDC
Close: 5.5° ATDC
Overlap: 10.5°
FP39: intake cam:
Adv. Lift: 0.3131"
Valve Lift: ≈ 0.3031"
Adv. Duration: 225° @ 0.003"
Open: 0° BTDC
Close: 45° ABDC
FP47: exhaust cam:
Adv. Lift: 0.3218"
Valve Lift: ≈ 0.3118"
Adv. Duration: 230° @ 0.003"
Open: 44° BBDC
Closing: 6° ATDC
Overlap: 6°
Foot notes:
Other cams:
FS1G: Basically an FSD7 intake cam modified to be emissions friendly.
FS1E: Torque biased cam from 99-00 Japan and Euro MPV.
Shim spec: ≈ 0.01 (1 onehundreth of an inch)
0.225—0.295mm / 0.0089—0.0116" (0.26±0.035mm / 0.010±0.001")
Valve Lift = Adv. Cam lift - Shim gap
Overlap = Exhaust valve close event(After TDC) + intake valve open event(Before TDC)
FS9P-A: Revised Mazdaspeed exhaust cam. Valve open and close events revised for less overlap.
TSB: Fixed stalling/idling issues under cold engine conditions(≈1%-1.5% loss in power @ 6000 RPM).
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