Brand : TOMEI
Product: Camshafts Poncam RB26DETT
Part Num: 143036 (BNR32,BCNR33) - Type A
Part Num: 143037 (BNR34) - Type A
Part Num: 143005 (BNR32,BCNR33) - Type B
Part Num: 143018 (BNR34) - Type B
Part Num: 143051 (BNR32,BCNR33) - Type R
Part Num: 143052 (BNR34) - Type R
FEATURES:
- Surface Coating:
Coating the surface of camshaft with manganese phosphate in order to protect from damage even when the camshaft has not lubricated yet. This has done by steeping press process that produces 0.5mm to 15 micromillimeter thin of manganese phosphate coating on its surface to prevent from direct contact with other metal parts while realizing smooth operation.
- Wavy Groove Finish by Oscillation Grinding:
Wavy groove is curved to the cam profile surface by oscillation during cam grinding process. Oil pool that is formed on the cam profile surface reduces a friction loss and prevents locking.
- PONCAM:
High performance can be gained by easy installation. Drop in camshafts that are designed to suit the stock valve train and ECU.
- 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.
- 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.
- Type R:
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.
- KEY DESIGN CONCEPTS:
To improve performance gains on cars running catalytic converters.
To maximise the stock turbos performance potential.
To reduce the exhaust back pressure.
Improves overall throttle response and torque.
To protect the stock turbos performance limits and minimise turbo failure.
RECOMMENDED SETUP:
Type A:
- Catalytic Converter: Sports Catalytic Converter or Straight Pipe
- Turbo: Stock or Larger Bolt On Type
Type B:
- Catalytic Converter: Sports Catalytic Converter or Straight Pipe
- Turbo: N1 or Full Turbo Kit Upgrade
Type R:
- Catalytic Converter: Sports Catalytic Converter or Straight Pipe
- Turbo: Stock or N1
SPECIFICATIONS:
- Back Pressure (for Stock Cat. Equiped Cars):
-- Engine RPM: 7200rpm
-- Exhaust Pressure 1.9K
-- J-ING Test car setup during acceleration (in 4th gear from 2,000rpm to 8,000rpm)
- Peak Power Comparison (for Stock Cat. Equiped Cars):
-- Type A: 405ps
-- Type B: 406.33ps
-- Type R: 404.65ps
-- The peak power output is less than the Type A & Type B camshafts but the response is better with the Type R camshafts.
Type A:
-- Duration (degree):
--- Intake: 260°
--- Exhaust: 252°
-- Max Cam Lift(mm):
--- Intake: 9.15
--- Exhaust: 9.15
-- Valve:
--- Intake: 110°
--- Exhaust: 115°
-- Valve clearance (mm)[+/-0.01]:
--- Intake: 0.45
--- Exhaust: 0.38
Type B:
-- Duration (degree):
--- Intake: 260°
--- Exhaust: 260°
-- Max Cam Lift(mm):
--- Intake: 9.15
--- Exhaust: 9.15
-- Valve:
--- Intake: 110°
--- Exhaust: 115°
-- Valve clearance (mm)[+/-0.01]:
--- Intake: 0.45
--- Exhaust: 0.38
Type R:
-- Duration (degree):
--- Intake: 250°
--- Exhaust: 250°
-- Max Cam Lift(mm):
--- Intake: 9.15
--- Exhaust: 9.15
-- Valve:
--- Intake: 110°
--- Exhaust: 110°
-- Valve clearance (mm)[+/-0.01]:
--- Intake: 0.45
--- Exhaust: 0.38
OEM SPECIFICATIONS:
- BNR32,BCNR33:
-- Engine: RB26DETT
-- Type: Solid
-- Duration(IN): 240°
-- Duration(EX): 236°
-- Cam Lift (IN): 8.58
-- Cam Lift (EX): 8.28
-- Pre-Set Valve Timing (IN): 113°
-- Pre-Set Valve Timing (EX): 125°
-- NVCS: No
-- NVCS range (rpm): -
- BCNR33 N1:
-- Engine: RB26DETT
-- Type: Solid
-- Duration(IN): 240°
-- Duration(EX): 236°
-- Cam Lift (IN): 8.58
-- Cam Lift (EX): 8.28
-- Pre-Set Valve Timing (IN): 113°
-- Pre-Set Valve Timing (EX): 120°
-- NVCS: No
-- NVCS range (rpm): -
- BNR34,BNR34 N1:
-- Engine: RB26DETT
-- Type: Solid
-- Duration(IN): 240°
-- Duration(EX): 236°
-- Cam Lift (IN): 8.58
-- Cam Lift (EX): 8.28
-- Pre-Set Valve Timing (IN): 117°
-- Pre-Set Valve Timing (EX): 121°
-- NVCS: No
-- NVCS range (rpm): -
