Tomei - PONCAM RB25DET R34/WGNC34(98.9-) NEO6

●About types for RB25 NEOstaight6

・ Type A
In order to get stable idle and raise low-mid RPM torque, we set the duration of EX camshaft shorter.
Best suit used with stock turbine or N1 turbine.

・Type B
By giving longer duration timing than type a, it eables to raise both response and peak power at the same time, even with mid-large sized turbine.

 

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■ SPEC

ENGINE	Duration	Max Cam lift (mm)	IN/EX	Max Valve lift （mm）	Cold Valve Clearance （mm）［±0.01］	Valve Timing Centerline (Deg)	Base circle	Note
RB25DE(T)	252	9.15	IN	8.70	0.45	120	32	PONCAM R34 NVCS
			EX	8.70	0.45	115		PONCAM
	256	8.50	IN	8.50	–	120		PONCAM R33 LASH NVCS
	260	9.15	IN	8.70	0.45	120		PONCAM NVCS
			EX	8.70	0.45	115		PONCAM
RB25DE(T) RB20DE(T)	256	8.50	EX	8.50	–	115	32	PONCAM LASH
	260	9.25	IN	8.80	0.45	110	29	SOLID
			EX	8.87	0.38	115
		10.25	IN	9.80	0.45	110
			EX	9.87	0.38	115
	270	9.25	IN	8.80	0.45	110
			EX	8.87	0.38	115
		10.25	IN	9.80	0.45	110
			EX	9.87	0.38	115
RB20DE(T)	256	8.50	IN	8.50	–	115	32	PONCAM LASH
	260	8.80	IN	8.80	–	115		LASH
			EX	8.80	–	115
	270	8.80	IN	8.80	–	115
			EX	8.80	–	115