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TOMEI

Tomei PROCAM SR20DE(T) SOLID EX 260-12.0mm

Tomei PROCAM SR20DE(T) SOLID EX 260-12.0mm

SKU: 1436260120
Regular price £171.02
Regular price Sale price £171.02
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PRODUCT INFO



TYPE APPLICATION DURATION(°) MAX CAM LIFT(mm) IN/EX P/N
ENGINE MODEL IN EX IN EX
R SR20DET (R)PS13 256 256 11.50 11.50 IN & EX Set 143043
S14,S15 143044

※PRESET VALVE TIMING
※STOCK VALVE SPRING COMPATIBLE




APPLICATION TYPE DURATION(°) Max Valve lift IN/EX P/N NOTE
SR20DET Lash 256 11.50 IN (R)PS13 143E256115 PONCAM
S14,S15(NVCS Compatible) 143G256115
EX (R)PS13,S14,S15 1439256115
260 12.00 IN (R)PS13 1431260120
S14,S15(NVCS Compatible) 143G260120
EX (R)PS13,S14,S15 1432260120
270 12.50 IN (R)PS13 1431270125
S14,S15(NVCS Compatible) 143G270125
EX (R)PS13,S14,S15 1432270125
Solid 260 12.00 IN (R)PS13,RNN14 1435260120
S14,S15(NVCS Compatible) 1433260120
EX (R)PS13,S14,S15 1436260120
RNN14 143K260120
270 12.50 IN (R)PS13,RNN14 1435270125
S14,S15(NVCS Compatible) 1433270125
EX (R)PS13,S14,S15 1436270125
RNN14 143K270125
280 12.50 IN (R)PS13,RNN14 1435280125
S14,S15(NVCS Compatible) 1433280125
EX (R)PS13,S14,S15 1436280125
RNN14 143K280125

※Solid Pivots, Adjust Shims and valve springs are needed for Solid type.(Excluding RNN14)

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
SR20DET Lash 256 7.42 IN 11.50 110 32 PONCAM
120 PONCAM(NVCS)
EX 115 PONCAM
260 7.70 IN 12.00 110
120 NVCS
EX 115
270 8.00 IN 12.50 110
120 NVCS
EX 115
Solid 260 7.88 IN 12.00 0.15 110 32
120 NVCS
EX 115
270 8.17 IN 12.50 110
120 NVCS
EX 115
280 8.17 IN 12.50 110
120 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)
SR20DET PS13 Lash 240 240 9.20 9.20 116 123 None
S14 126 113 1050~5700
S15
RNN14 Solid 248 248 10.00 10.00 110 120 None
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