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MAZDA MIATA CAMSHAFTS
Our Miata cams are ground on new alloy steel billets.
Stage 1, 2, and 3 cams bolt-in just like the stock
cams and work with the stock lifters and valve springs. Custom design services are available for full race
applications.
Stage 1 designed for stock engines and cold air box.
Stage 2 designed for engine with cold air box and headers, although can be
used with pure stock engine.
Stage 3 must use cold air box and headers; slight loss in low-end torque
but big gains from 4000-7000 rpm.
Price: $724 per pair for new steel billet cams.
There is no extra charge if you want a different stage / profile on the exhaust
cam than the intake cam. We accept Visa and MasterCard
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1.6 Hydraulic Lifter Cam Profiles, 1990-1993 engines |
| Profile |
Seat Duration |
.050" duration |
Cam Lift |
| Stock (Intake / Exhaust) |
236° / 248° |
193° / 203° |
.310"/.310" (7.87 mm/7.87 mm) |
| Stage 1 |
248° |
204.4° |
.343" (8.71 mm) |
| Stage 2 |
254° |
210.6° |
.360" (9.14 mm) |
| Stage 3 |
260° |
216.4° |
.375" (9.52 mm) |
| F Production Race, FP2 |
282° |
240.4° |
.390" (9.91 mm) |
| F Production Race, FP |
290° |
246.4° |
.390" (9.91 mm) |
| F Production Race, FP3 |
300° |
256.4° |
.390" (9.91 mm) |
| Race, 11H2 |
300° |
258.2° |
.450" (11.43 mm) |
| F Production Race, FP4L |
304° |
255.5° |
.370" (9.40 mm) |
| F Production Race, FP4 |
306° |
260.2° |
.390" (9.91 mm) |
| F Production Race, FP5 |
310° |
265.3° |
.390" (9.91 mm) |
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1.8 Hydraulic Lifter Cam Profiles, 1994-1998 engines |
| Profile |
Seat Duration |
.050" Duration |
Cam Lift |
| Stock (Intake / Exhaust) |
233°/254° |
188° / 202° |
.318"/.339" (8.08 mm/8.61 mm) |
| Stage 1L |
241°/258° |
199.4° / 211.8° |
.323"/.344" (8.20 mm/8.74 mm) |
| Stage 1 |
254° |
212° |
.370" (9.40 mm) |
| Stage 2 |
260° |
218° |
.375" (9.52 mm) |
| Stage 3 |
266° |
224° |
.375" (9.52 mm) |
| Stage 4 |
276° |
233.4° |
.375" (9.52 mm) |
| Road race - 9H |
286° |
245° |
.448" (11.38 mm) |
| Road race - 12H |
296° |
256.5° |
.480" (11.94 mm) |
| Road race - 10H |
300° |
257.7° |
.470" (11.94 mm) |
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1.8 Mechanical Lifter Cam Profiles, 1999-2001 engines |
| Profile |
Seat Duration |
.050" Duration |
Cam Lift |
| Stock (Intake / Exhaust) |
248°/251° |
204.4° / 210.7° |
.326"/.350" (8.28 mm/8.89 mm) |
| Stage 1L (Int / Exh) |
252° / 256° |
210.1° / 218.7° |
.329"/.353" (8.36 mm/8.97 mm) |
| Stage 1S (Int / Exh) - Autocross |
248° / 253° |
214.8° / 215.3° |
.350"/.350" (8.89 mm/8.89 mm) |
| Stage 1 |
251° |
213.3° |
.360" (9.14 mm) |
| Stage 2 |
257° |
217.3° |
.370" (9.40 mm) |
| Stage 3 |
263° |
223.9° |
.385" (9.78 mm) |
| Stage 4 |
274° |
235° |
.395" (10.03 mm) |
| Stage 5 |
288° |
248° |
.425" (10.79 mm) |
| Stage 6 |
292° |
252.8° |
.440" (11.18mm) |
The stage 1L - stage 6 1.8 mechanical lifter profiles are designed to work
with the stock '99 valve spring and stock shim-over-bucket tappets. The stage 1L
cams are the only cams that work with the factory ecu.
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1.8 Mechanical Lifter Cam Profiles for Turbocharged 1999-2001
Engines |
| Profile |
Seat Duration |
.050" Duration |
Cam Lift |
| Mazdaspeed stock factory turbo |
247°/251° |
207.3° / 210.7° |
.345"/.350" (8.76 mm/8.89 mm) |
| Stage 2 turbo (intake/exhaust) |
257°/256° |
217.3° / 218.7° |
.370"/.353" (9.40 mm/8.97 mm) |
The stage 2 turbo mechanical lifter profiles are designed to work
with the stock '99 valve spring and stock shim-over-bucket tappets.
Full Race 1.8 Mechanical Lifter Cam
Profiles, 1999-2001 Engines |
| Profile |
Seat Duration |
.050" Duration |
Cam Lift |
| R1 |
283° |
250.7° |
.458" (11.63 mm) |
| R2 |
291° |
258.4° |
.470" (11.94 mm) |
| R3 |
295° |
262.5° |
.490" (12.45 mm) |
| R4A |
312° |
279° |
.505" (12.83 mm) |
The R1 - R4 1.8 mechanical lifter profiles are designed for racing valve
springs and shim-under-bucket tappets.
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1.8 Mechanical Lifter Cam Profiles, 2002-2005 engines with
variable intake valve timing |
| Profile |
Seat Duration |
.050" Duration |
Cam Lift |
| Stock (intake/exhaust) |
242° / 244° |
207.9° / 210.4° |
.370"/.350" (9.40 mm/8.89 mm) |
| Stage 1 (intake/exhaust) |
252° / 254° |
213.8° / 215.7° |
.373"/.365" (9.47 mm/9.27 mm) |
New steel billet race cams for 2007 - 2008 2.0 litre Miata engines available in July 2008.
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