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post #45 of (permalink) Old 09-25-2013
Nightmare37
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Joined: Nov 2010
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Quote:
Originally Posted by Prodigalsixer View Post
"Variable Camshaft Timing (VCT) is an automobile variable valve timing technology developed by Ford. It allows for more optimum engine performance, reduced emissions, and increased fuel efficiency compared to engines with fixed camshafts. It uses electronically controlled hydraulic valves that direct high pressure engine oil into the camshaft phaser cavity. "

"Twin Independent Variable Camshaft Timing (Ti-VCT) is the name given by Ford to engines with the ability to vary the camshaft timing of both the intake and exhaust camshafts independently. Despite the name difference, its operation is the same as standard VCT. Unlike the original versions of VCT, which only operated on a single camshaft, Ti-VCT allows the PCM to advance or retard the timing of both the intake and exhaust camshafts independently. "
You described how the Honda mimicked cam timing works on most old styled vct systems using high pressure engine oil to advance/regard timing.

The Ti-VCT system our mustang uses is a "cam torque" actuated system developed by Borg warner... Here read this:

Quote:
uses a Ti-VCT system actuated by camshaft torque, with assistance from pressurized oil. Using camshaft torque energy provides even faster throttle response and maximizes use of existing energy to aid fuel economy. Working like a ratchet, the one-way valves allow precise timing of camshaft events, continually optimizing timing to provide maximum torque or maximum fuel economy, based on driver input.
"Ti-VCT technology will continue to proliferate across the Ford powertrain portfolio," said Samardzich. "By 2013, you can expect to see this advancement available on 90 percent of our nameplates."
Since it is a system based off of the resistance of valve spring pressure I'm betting it may be sensitive to it if you go with stiffer springs.


166,xxx miles
2011 3.7L MT82 Kona Blue GT/CS Pedestal Spoiler, Cervini's HE hood, Stillen chin spoiler, BBK headers, GT T/B, Steeda tune, Ram 9.5 Dual Disc clutch, 3.15 axle T2R Torsen, 285/35/18 w/ Steeda 18"x 9.5"+44mm Q1s, Steeda Sports springs/Koni struts/Viking shocks, Shelby adj front sway bar, Boss302 Rear sway bar, Whiteline Watts Link, 14" "Brembo-ish" brakes and 3/4" front wheel spacers/ARP studs.
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