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TOMEI

Tomei PONCAM SR20DE P10,W10 TYPE-N - IN & EX Set

Tomei PONCAM SR20DE P10,W10 TYPE-N - IN & EX Set

SKU: 143041
Regular price £342.05
Regular price Sale price £342.05
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PRODUCT INFO



TYPE APPLICATION DURATION(°) MAX CAM LIFT(mm) IN/EX P/N
ENGINE MODEL IN EX IN EX
N SR20DE P10,W10 260 260 11.20 11.20 IN & EX Set 143041
P11 143039
(R)PS13 143040
S14,S15 143042

※PRESET VALVE TIMING
※STOCK VALVE SPRING COMPATIBLE




APPLICATION TYPE DURATION(°) Max Valve lift IN/EX P/N NOTE
SR20DE Lash 260 11.20 IN (R)PS13,P10,W10 143E260112 PONCAM
S14,S15(NVCS対応) 143H260112
EX P10,W10 143J260112
(R)PS13,S14,S15 1439260112
12.00 IN (R)PS13,P10,W10 1431260120
S14,S15(NVCS対応) 143H260120
EX P10,W10 143J260120
(R)PS13,S14,S15 1432260120
270 12.50 IN (R)PS13,P10,W10 1431270125
EX P10,W10 143J270125
(R)PS13,S14,S15 1432270125
Solid 260 12.00 IN (R)PS13,P10,W10 1435260120
EX P10,W10 143K260120
(R)PS13,S14,S15 1436260120
270 12.50 IN (R)PS13,P10,W10 1435270125
EX P10,W10 143K270125
(R)PS13,S14,S15 1436270125
280 12.50 IN (R)PS13,P10,W10 1435280125
EX P10,W10 143K280125
(R)PS13,S14,S15 1436280125

※Solid Pivots, Adjust Shims and valve springs are needed for Solid type.

FEATURE / SPEC

■ SPEC
ENGINE Type Duration Max Cam lift (mm) IN/EX Max Valve lift (mm) Cold Valve Clearance
(mm)[±0.01]
Valve Timing Centerline
(Deg)
Base circle Note
SR20DE Lash 260 7.23 IN 11.20 110 32 PONCAM
130 PONCAM(NVCS)
EX 115 PONCAM
7.70 IN 12.00 110
130 NVCS
EX 115
270 8.00 IN 12.50 110
130 NVCS
EX 115
Solid 260 7.88 IN 12.00 0.15 110 32
130 NVCS
EX 115
270 8.17 IN 12.50 110
130 NVCS
EX 115
280 8.17 IN 12.50 110
130 NVCS
EX 115
Theme of TOMEI CAMSHAFT

Asymmetrical G-Controlled Profile

When opening the intake valve during high acceleration the G from the camshaft requires to send as much mixture to the cylinder in the shortest time possible. However if the speed is too high it can damaged the Valves, Valve Seats and Valve Springs if the Acceleration G is too high. The Asymmetrical profile design given to the camshafts will allow the Intake and Exhaust Valves to fulfill the target requirement with the wider duration and high lift without damaging the Valve System.

Maximizing the Valves Efficiency



The general purpose of engine tuning is to change the torque characteristics of the engine by changing the cams duration timing and cam lift amount for maximum torque and horse power. However tuning the engine is not only based on that. When going into finer details by maximizing the Valves efficiency is not just about timing and height lift but to also maximize the intake efficiency. The high valve lift allows huge amounts of air in but at the same time it mechanically damages the valve train and gains added friction loss. Longer cam durations and big cam lifts give deliver more power at higher engine speeds but it also gives a rough idle and at low engine speeds. Tomei engineers worked hard to produce camshafts that will deliver a well balanced profile at 1.3-1.5 times more than the stock camshaft.

Quality Control

Every camshaft is carefully built through these production processes. Plus, strict inspection will be given to them and only the highest quality products are shipped.

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.

CNC Super Precise High Speed Grinding



The combination of a ultra high-speed main bearing and diamond grindstone is controlled by the computer. By using the same special-purpose machine as an automaker, high precision grinding is realized though in 1/3 period of time. Consequently, incredible accuracy of profile and remarkable price were realized at the same time.

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.



Factory Camshaft specs


Engine Model Type Cam Duration/IN (°) Cam Duration/EX (°) Cam lift/IN (mm) Cam lift/EX (mm) Pre-Set Valve Timing/IN (°) Pre-Set Valve Timing/EX (°) NVCS NVCS range(rpm)
SR20DE PS13 Lash 248 246 10.00 9.20 117 120 None
S14 240 130 113 1050~8000
S15
P10 115 111 None
P11 240 232 9.40 8.50 118 109 None
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