Description

Tomei Poncam RB26DETT R32/R33/R34

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
A
RB26DETT
BNR32/BCNR33
260
252
9.15
9.15
IN & EX Set
143036
BNR34 143037
B
BNR32/BCNR33
260
260
9.15
9.15
IN & EX Set
143005
BNR34 143018
R
BNR32/BCNR33
250
250
9.15
9.15
IN & EX Set
143051
BNR34 143052

※PRESET VALVE TIMING
※STOCK VALVE SPRING COMPATIBLE
※Using this product may require additional work on the cylinder head to allow clearance for the height cam lobe.
The amount of clearance required will vary from each cylinder head.
First check with the camshaft fitted to see how much modification is required on the cylinder head to allow adequate clearance for the high cam lobes.

FEATURE / SPEC

 

â–  Type A
Designed to best suit the stock & N1 turbos for optimum performance balance of low to mid range torque.
The Exhaust cams duration was reduced to maintain best idling.

â–  Type B
By extending the duration timing compared to the Type A Poncams, both response and peak power was raised and these camshafts best compliment the mid to large size turbo charged applications.

â–  TYPE R(for Stock Cat. Equipped Cars)
The Type R camshafts were designed due to popular demand from end users who are looking at upgrading the performance potential of their GTR while staying within the limits of recent street legal requirements.
Recent laws on emissions and exhaust noise was made stricter in Japan so to have a quieter car by running smaller exhaust systems raises the exhaust back pressure which greatly reduces the response and hinder performance. Our engineers then designed these Type R camshafts to suit the needs of those who need to keep such setup and benefit with performance gains.

TYPE A TYPE B TYPE R
RECOMMENDED SETUP
CATALYTIC
CONVERTER
Sports Catalytic Converter
or Straight Pipe
Sports Catalytic Converter
or Straight Pipe
Sports Catalytic Converter or Straight Pipe
TURBO Stock or
Larger Bolt On Type
N1 or
Full Turbo Kit Upgrade
Stock or N1 Turbos
Peak Power Comparison
(for Stock Cat. Equipped Cars)
405 ps 406,33 ps 404,65 ps

â–  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
RB26DETT
250
9.15
IN 8.7 0.45 110
32
PONCAM
EX 8.77 0.38 110 PONCAM
252
9.15
IN 8.7 0.45 110
EX 8.77 0.38 115 PONCAM
260
9.15
IN 8.7 0.45 110 PONCAM
EX 8.77 0.38 115 PONCAM
10.25
IN 9.8 0.45 110
30
EX 9.87 0.38 115
10.8
IN 10.35 0.45 110
EX 10.42 0.38 115
270
10.25
IN 9.8 0.45 110
EX 9.87 0.38 115
10.8
IN 10.35 0.45 110
EX 10.42 0.38 115
280
10.8
IN 10.35 0.45 110
EX 10.42 0.38 115
11.5
IN 11.05 0.45 110
EX 11.12 0.38 115
290
11.5
IN 11.05 0.45 110
EX 11.12 0.38 115