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Ships within 48 hours · Estimated delivery Jul 28 - Aug 2
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Description
Kelford Camshafts for Mazdaspeed 3/6247 A Drop in cams to suit OEM valve spring. Ideal for turbo upgrade 48mm 54mm. Excellent throttle response and improved low to mid range power. Must retain stock rpm limit and not exceed 16psi of boost with stock valve springs. For high mileage engines or higher boost Kelford Cams recommend KVS17 X valve spring upgrade. 247 B Performance cams for improved mid range power. Still maintains good street drivability. Ideal for 54mm 60mm turbo upgrade in
247-A
Drop-in cams to suit OEM valve spring. Ideal for turbo upgrade 48mm-54mm. Excellent throttle response and improved low to mid-range power. Must retain stock rpm limit and not exceed 16psi of boost with stock valve springs. For high mileage engines or higher boost Kelford Cams recommend KVS17-X valve spring upgrade.
247-B
Performance cams for improved mid-range power. Still maintains good street drivability. Ideal for 54mm-60mm turbo upgrade in the 350-500hp range, but still give a good increase for higher horsepower cars that want to maintain street driveability. Great with E85 fuel. Kelford Cams recommend KVS17-X valve spring upgrade to let you rev these out.
247-C
Track racing cams to suit engines in the 500-750hp range. Turbo sizing 58-65mm compressor inducer. Great with E85 or ethanol blend fuels. Kelford Cams recommend KVS17-X valve spring upgrade.
247-C2
Racing cams for engines in the 650-900hp range. Suits high boost and high rpm wide open throttle race applications. Turbo size 62-68mm. Fuel type E85 or similar blend. Kelford Cams recommend KVS17X-T valve spring and retainer upgrade.
247-D
Drag racing cams for professionally built engines in the 750-1000HP+ range. Fuel type E85 or methanol. Turbo size 68mm+. Kelford Cams recommend KVS17X-T valve spring and retainer upgrade.
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