Camshaft Phaser Limiter - 20 Degree Limit - Ford Modular 3-Valve 2005-10 - Kit

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Cam phasers are specially designed, computer-controlled Cam Gears that automatically optimize Camshaft timing based on the current engine rpm. Engine oil is pressure fed to the Cam phasers through a Series of passageways in the cylinder heads and Camshafts. The engine computers control solenoids that adjust this oil flow into and out of the phaser's control chambers, giving the ability to retard the cams up to 60 crank degrees. While this Technology provides tremendous efficiency benefits, such as fuel efficiency and the ability to always be in the best position for maximum power, regardless of engine rpm, it does present some limitations when it comes to performance Camshafts. With such a wide range of valve timing movement, there is very little piston to valve clearance, which limits you to small Cam profiles with little overlap. The U.S. Patented COMP Cams Cam Phaser Limiter Kits for Ford Modular 3V engines restrict the range of Cam timing movement to only 20 degrees, thus providing the necessary valve clearance for Serious performance cams with tighter lobe separations - all while still utilizing the benefits of VVT Technology. Combining this performance modification with more aggressive Cam profiles has resulted in some of the largest upper-rpm gains we've ever seem from such a simple valve train adjustment without sacrificing any bottom end or mid-range performance. Part Number 5449 Includes:Cam Phaser Limiters (2)Limiter ToolSpring Compressor

Additional Information

Our VVT limiter kit for '05+ Ford 4.6/5.4L 3 valve engines comes with 2 phaser limiters, a VVT spring compressor, VVT spring lock tool and the instructions required for proper installation. This kit limits cam movement to 20 degrees.

Part Type

Engine Variable Valve Timing (VVT) Adjuster Plug

Product Overview

Cam phasers are specially designed, computer-controlled cam gears that automatically optimize camshaft timing based on the current engine RPM and are currently used in all 2008+ Chrysler 5.7-6.4L VVT (Variable Valve Timing), 2005+ Ford Modular 3V, 2011+ Ford 5.0L DOHC Modular 4V V8 Ti-VCT (Variable Cam Timing) and 2007+ GM Gen IV VVT engines. Engine oil is pressure-fed to the phasers through passageways in the cylinder heads and cams. The engine computers control solenoids that adjust this oil flow into and out of the phasers' control chambers, creating the ability to retard the cams.

While this technology provides fuel efficiency and the ability to always be in the best position for maximum power, regardless of engine RPM, it does present some limitations when it comes to performance cams. With such a wide range of valve timing movement, there is very little piston to valve clearance, which limits you to small cam profiles with little overlap.

The COMP Cams Cam Phaser Limiter Kits for the Chrysler Hemi, Ford Modular 3V and GM Gen IV VVT engines restrict the range of cam timing movement (14° for Chrysler, 20° for Ford and 22° for GM), thus providing the necessary valve clearance for serious performance cams with tighter lobe separations â€" all while utilizing the benefits of VVT technology. The Cam Phaser Limiters for the 2011+ Ford 5.0L 4V Ti-VCT engine limit the cam phasing to 25 crank degrees (12.5 cam degrees) while the cam phaser locks for that same engine allow fully adjustable locking over the OEM phaser range (50°).

The resulting upper-RPM gains from using COMP Cams Cam Phaser Limiters or Locks are some of the largest we've ever seen from a camshaft swap without sacrificing any bottom end or mid-range performance.

These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.

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Product Details

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Reference Information

Camshaft Phaser, Ford Modular 3 Valve Motors, 2005 and Newer, 4.6/5.4L, Kit

Comp Cams cam phaser limiter kits are specially designed, computer-controlled cam gears that automatically optimize camshaft timing based on the current engine rpm Engine oil is pressure-fed to the phasers through passageways in the cylinder heads and cams. The engine computers control solenoids that adjust this oil flow into and out of the phasers' control chambers, creating the ability to retard the cams.

While this technology provides fuel efficiency and the ability to always be in the best position for maximum power, regardless of engine rpm, it does present some limitations when it comes to performance cams. With such a wide range of valve timing movement, there is very little piston to valve clearance, which limits you to small cam profiles with little overlap.

COMP Cams cam phaser limiter kits restrict the range of cam timing movement (14 degrees for Chrysler, 20 degrees for Ford, and 22 degrees for GM), thus providing the necessary valve clearance for serious performance cams with tighter lobe separations--all while utilizing the benefits of VVT technology.

Gain some serious upper rpm power without sacrificing bottom end or mid-range performance with Comp Cams cam phaser limiter kits.