Caterham

Land Rover

Lotus

MG Rover

• Brand new camshafts, supplied as an engine set.
• Wide range of cam profiles on offer

Piper Camshafts offer a complete range of camshafts for MG ZR & R25 with the K Series engine. The choice of camshafts available gives you the ability to purchase the specific cam profile that best suits your requirements. 

The profiles on offer range from a mild profile to more wild profiles. The Mild camshaft profiles are designed to optimise performance without losing any of the standard drivability that MG Rover customers love about their ZR's and 25's. The wilder camshaft profiles are for customers who want to optimise the performance of their car and achieve the highest BHP increase possible, when fitting the wilder camshafts it is recommended that mechanical tappets and a reprogrammable ECU are used to optimise the reliability and performance gains seen by fitting these profiles of camshaft.


Below is a list of the camshafts and applications:

• ARKBP255H - FAST ROAD. Direct Replacement. Designed for use in 1400 engine.Vernier pulleys advised – uses hydraulic tappets from standard engine
• ARKBP270H - FAST ROAD. Direct Replacement. Designed for 1600/1800 engine. Vernier pulleys advised – uses hydraulic tappets from standard engine.
• ARKBP285H - ULTIMATE ROAD.  Not recommended for use with std injection – uses hydraulic tappets from standard engine.
• ARKBP285M - ULTIMATE ROAD. Not recommended for use with std injection. 1.8
  capable of producing over 190bhp. requires mechanical tappets
• ARKBP300M - SPRINT/HILL CLIMB. Over 200bhp easily obtainable with tremendous torque. requires mechanical tappets and reprogrammable ECU
• ARKBP320M - RACE / SPRINT. Over 120 bhp/litre achievable. requires mechanical tappets and reprogrammable ECU
• ARK1227 - SLR 500. Now a legendary profile in the k series tuning world. requires mechanical tappets and reprogrammable ECU
• ARK1444 - RACE / SPRINT. On Dave Walker's rollers this profile shows more
  torque & power over the 1227's!!!. requires mechanical tappets and reprogrammable ECU

Full Camshaft specifications are listed below.

 

Specifications

Part No.	Power Band	Power Increase	Duration		Valve Lift		Timing	Full Lift		Lift @ TDC with clearance
			Inl	Exh	Inl	Exh		Inl  ETDC	Exh BTDC	Inl	Exh
ARKBP255H	2000- 7000	10 BHP	248 deg	248 deg	.348" 8.84mm	348" 8.84mm	14-54 54-14	110 deg	110 deg	045" 1.14mm	045" 1.14mm
ARKBP270H	2000- 7000	16 BHP	260 deg	260 deg	.380" 9.65mm	.380" 9.65mm	20-60 64-16	110 deg	114 deg	.035" 0.89mm	.035" 0.89mm
ARKBP285H	2500- 7500	20 BHP+	274 deg	274 deg	.433" 11.00mm	.433" 11.00mm	29-65 67-27	108 deg	110 deg	.088" 2.23mm	.078" 1.98mm
ARKBP285M	2800- 7800	20 BHP+	276 deg	276 deg	.440" 11.18mm	.438" 11.13mm	34-62 64-32	104 deg	106 deg	.110" 2.80mm	.098" 2.48mm
ARKBP300M	3200- 8000		280 deg	280 deg	.442" 11.23mm	.440" 11.18mm	34-66 70-30	104 deg	106 deg	.121" 3.08mm	.121" 3.08mm
ARKBP320M	4500- 8500		290 deg	280 deg	.460" 11.68mm	.440" 11.18mm	39-71 71-39	106 deg	106 deg	.141" 3.58mm	.108" 2.75mm
ARK1227	4500- 8500		280 deg	280 deg	.462" 11.73mm	.460" 11.68mm	36-64 68-32	104 deg	108 deg	.140" 3.55mm	.117" 2.97mm
ARK1444	4500- 8500		276 deg	276 deg	.481" 12.22mm	.479" 12.17mm	34-62 66-30	104 deg	108 deg	.143" 3.63mm	.120" 3.05mm

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