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Supertech Racing Valves and Pistons

Supertech High Performance Valves: Mazda

MAZDA MIATA 1.6L DOHC B6D
INTAKE VALVEPart NumberEXHAUST VALVEPart Number
Head DiamStem. DiamLengthBlack NitridedHead DiamStem. DiamLengthBlack Nitrided / Inconel
Miata / MX 5 90-9331.00mm (Std)5.96mm105.35mmMAIVN-1100 (hi flo)26.20mm (std)5.94mm105.35mmMAEVN-1100
31.00mm (Std)MAIVN-1100/2 (std flo)27.20mm (+1.0)MAEVN-1102
32.00mm (+1.0)MAIVN-1102 (hi flo)
ENGINE COMPONENTS
VALVE SPRINGSOuter SpringInner SpringPressure (lbs@mm)Max Net liftCoil BindRateTitanium Retainer
Part NumberO.D. (mm)I.D. (mm)O.D. (mm)I.D. (mm)SeatOpen (lift)mmmmlbs./mmPart Number
SPR-MM16D127.5020.0020.0015.2049 @ 36.80127 @ 10.516.1020.7012.10RET-TS60/MA2 + SEAT-TS/MA16 + OEM seat
SPR-MM16S27.5020.00SINGLE58 @ 34.10157 @ 10.513.4020.709.40RET-TS60/MA2 + SEAT-TS/MA18I + OEM seat
SPR-MM16D227.5020.0020.0015.2070 @ 35.5197 @ 10.514.8020.7012.10RET-TS60/MA2 + SEAT-TS/MA18E + OEM seat
VALVE SEALSINTAKE: VS-T6-IEXHAUST: VS-T6-E
MAZDA MIATA 1.8L DOHC "BP" / Ford Escort GT
INTAKE VALVEPart NumberEXHAUST VALVEPart Number
Head DiamStem. DiamLengthBlack NitridedHead DiamStem. DiamLengthBlack Nitrided / Inconel
Miata / MX 5 Protégé 90-99
Ford Escort GT 91-96
33.00mm (std)5.96mm102.6mm (+0.6)MAIVN-1204 (hi flo)28.00mm (std)5.94mm102.60mm (+0.6)MAEVN-1204
33.00mm (std)MAIVN-1208 (std flo)
34.00mm (+1.0)MAIVN-1206 (hi flo)29.00mm (+1.0)MAEVN-1206
33.00mm (std)101.3mm (-0.7mm) '90-98MAIVN-1201 (hi flo)28.00 mm (std)101.6mm (-0.4mm) '90-98MAEVN-1201
ENGINE COMPONENTS
VALVE SPRINGSOuter SpringInner SpringPressure (lbs@mm)Max Net liftCoil BindRateTitanium Retainer
Part NumberO.D. (mm)I.D. (mm)O.D. (mm)I.D. (mm)SeatOpen (lift)mmmmlbs./mmPart Number
SPR-MM18S27.5020.00SINGLE56 @ 34.2154 @ 10.513.5020.709.40 RET-TS60/MA2 + (16) SEAT-TS/MA18I + OEM (use '97 + Cotters)
SPR-1012-M18D27.5020.0020.0015.2063 @ 34.2164 @ 10.514.2020.009.60 RET-TS60/MA2 + (16) SEAT-TS/MA18I + OEM (use '97 + Cotters)
SPR-MM18D27.5020.0020.0015.2074 @ 34.2177 @ 10.513.0020.7012.10 RET-TS60/MA2 + (16) SEAT-TS/MA18I + OEM (use '97 + Cotters)
VALVE SEALSINTAKE: VS-T6-IEXHAUST: VS-T6-E
MAZDA PROTÉGÉ / MX6 2.0L FS / Ford Probe
INTAKE VALVEPart NumberEXHAUST VALVEPart Number
Head DiamStem. DiamLengthBlack NitridedHead DiamStem. DiamLengthBlack Nitrided / Inconel
Protégé / MX6 / 626 (1993-2003)32.50mm (+1)5.97mm89.9mmMAIVN-200228.6mm (+1)5.96mm89.9MAEVN-2002
ENGINE COMPONENTS
VALVE SPRINGSOuter SpringInner SpringPressure (lbs@mm)Max Net liftCoil BindRateTitanium Retainer
Part NumberO.D. (mm)I.D. (mm)O.D. (mm)I.D. (mm)SeatOpen (lift)mmmmlbs./mmPart Number
SPR-MP20S25.0018.00SINGLE58 @ 34.8142 @ 1113.8021.007.60RET-2500/T1 + Factory seat
SPR-TC25D/MP25.0018.0018.0013.0085 @ 34.8223 @ 1113.8021.00/ 17.0012.60 RET-2500/T1 + Spring base SS-3012 + Oil Seal VS-T6SM (requires some machining of guide)
VALVE SEALSINTAKE: VS-T6-I / For Dual Spring Smaller diam.: VS-T6SM (requires machining of guide tip)EXHAUST: VS-T6-E / For Dual Spring Smaller diam.: VS-T6SM (requires machining of guide tip)
VALVE GUIDESINTAKE: GDE-MA20FSEXHAUST: GDE-MA20FS
MAZDA / FORD Duratec 2.0 - 2.3L
INTAKE VALVEPart NumberEXHAUST VALVEPart Number
Head DiamStem. DiamLengthBlack NitridedHead DiamStem. DiamLengthBlack Nitrided / Inconel
Focus / Mazda 335.00mm (std) Flat5.48 mm103.40mm (std)MAIVN-2301F30.00mm (std) Flat5.48mmMAEVN-2301F
36.00mm (+1.0) dishor 102.40mm (-1mm)MAIVN-2304D31.00mm (+1.0) Flat104.70 mmMAEVN-2304F
36.00mm (+1.0) Flat (add an "S" at end of p/n)MAIVN-2304F31.00mm (+1.0) Dishor 103.70 mm (-1mm)MAEVN-2304D
37.50mm (+2.5) DishMAIVN-2308D31.00mm (+1.0) dish (add an "S" at end of p/n)MAEVI-2304*
32.00mm (+2.0) FlatMAEVN-2306F
ENGINE COMPONENTS
VALVE SPRINGSOuter SpringInner SpringPressure (lbs@mm)Max Net liftCoil BindRateTitanium Retainer
Part NumberO.D. (mm)I.D. (mm)O.D. (mm)I.D. (mm)SeatOpen (lift)mmmmlbs./mmPart Number
SPR-TS/DUR-D127.5020.0020.0015.2083 @ 35.00233 @ 1214.3020.7012.10RET-TS5.5/T1 +Factory Seat+ SEAT-DUR1
SPR-TS/DUR-D227.5020.0020.0015.2070 @ 36.20215 @ 1215.5020.7012.10RET-TS5.5/T1 +Factory Seat+ SEAT-DUR2
SPR-TS/DUR-DS27.5020.00SINGLE55 @ 35.00170 @ 1214.3020.709.60RET-TS5.5/T1 +Factory Seat+ SEAT-DUR1
VALVE SEALSINTAKE: VSI-D5.5-EEXHAUST: VSI-D5.5-E
CAM FOLLOWERSCF-31/2.5+ ( + shims / to be use with 1mm shorter valves)
LEFT COLUMN
RIGHT COLUMN