3v only
StratGT said:
Correct me if I'm wrong, but, the only Mustang that comes with VCT is the '05 and newer 3v GT's so this product would not apply to a 2v car. Am I correct?
right 3v only. i have a 5.4 3v. also i have discovered another tech problem:
oil viscosity changes with temperature. 20w50 = pours like 20 weight when hot 50 weight when cold. (i can't remember which way). but the orifice is a fixed size, it will flow different volume at different temps. the vct retard will be more when cold less when hot.
solution:
1. use 5w30 and change oil filter frequently.
2. tweak values periodically using oscilloscope.
a) read both camshafts as 2 inputs.
b) phase cam1 at 3000 rpm's (phasing starts there) and compare to reading of cam2
c) read as actual degrees limit to -8 degrees.
d) switch cams and repeat.
3. this motor comes from the factory with oil cooler.
4. optimize oil temps with cooler.
also: spring pressure returns camshaft to full advance so;
simple to control. $4 per chip.
chip requires MOSFET high power output to actually run solenoids.
i will design and publish circuit after running motor for a while.
it consists of trigger circuit to set impedence to controller for descrete levels.
i have decided that full analog continuous control is not realistic.
instead i will set maybe 4 levels of voltage triggering to set controller input impedence. impedence controls duty cycle in this chip. i could use voltage control but impedence is easier. i can use one controller and two 12v 4 amp MOSFETS. also low level voltage output increases life of chips. also circuit boards will be inside vehicle. 150C limit for shut off. i can't afford under hood temps tripping chips. chips have indicator for tripping.
i will probably disable system except at track or if i feel froggy.
this motor is perfectly capable of 11.50's with forged internals with stock parts without VCT. if you consider retardin the cam 1 tooth and shifting at 6800 the rpm's will not drop into lower powerband.