Description

Tomei Poncam RB25DE(T) R33(-97.9) WGNC34(-97.9) C34 NVCS

Tomei typically has stock available the same day. (Their factory/ warehouse is 5 minutes around the corner from us.) However, we will let you know if there are backorders or any delays. If you are looking for parts that are not on our website or want to place a bulk stock order, please contact us via the contact form.

 

 

TYPE
 APPLICATION DURATION（°） MAX CAM LIFT（mm）
IN/EX
P/N
ENGINE MODEL IN EX IN EX
RB25DE(T)
 R33(1st),WGNC34(1st),C34
256
256
8.5
8.5
IN & EX Set
 143020
R33(2nd) WGNC34(2nd)) 143050
A
R34,WGNC34(3rd)
NEO straight 6(exclude RB25DE)
 252 252
9.15
9.15
 IN & EX Set 143046
B 260 260 IN & EX Set 143023
RB20DE(T) 256 256 8.5 8.5 IN & EX Set 143019

 

※PRESET VALVE TIMING
※STOCK VALVE SPRING COMPATIBLE
※WGNC34: 1st;1996.10 – 2nd;1997.9 – 3rd;1998.8.31 –
※ECR33: 1st;1993.8 – 2nd;1997.9 – (changed crank angle sensor)

FEATURE / SPEC

●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 raises both response and peak power at the same time, even with mid-large sized turbine.


■ 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 8.7 0.45 120
32
 PONCAM
R34 NVCS
EX 8.7 0.45 115 PONCAM
256 8.5 IN 8.5 – 120
PONCAM
R33 LASH NVCS
260
9.15
 IN 8.7 0.45 120 PONCAM
NVCS
EX 8.7 0.45 115 PONCAM
RB25DE(T)
RB20DE(T)
 256 8.5 EX 8.5 – 115 32 PONCAM
LASH
260
9.25
 IN 8.8 0.45 110
29
SOLID
EX 8.87 0.38 115
10.25
 IN 9.8 0.45 110
EX 9.87 0.38 115
270
9.25
 IN 8.8 0.45 110
EX 8.87 0.38 115
10.25
 IN 9.8 0.45 110
EX 9.87 0.38 115
RB20DE(T)
 256 8.5 IN 8.5 – 115
32
 PONCAM
LASH
260
8.8
 IN 8.8 – 115
LASH
EX 8.8 – 115
270
8.8
 IN 8.8 – 115
EX 8.8 – 115