Gen 2 Coyote, stock cams, VCTI max cam angles

Hi,

I am across the pond in the U.K and have a Gen2 Ford Performance Coyote. The engine is completely stock but is now running a Motec M150. I have a dyno session next week, does anyone know the max inlet advance and the max exhaust retard angles? Are these angles mechanically limited by the phasers?

From my research I have concluded following, are these figures correct?


Inlet:

• Advance: 20 degrees
• Retard: 50 degrees

Exhaust:

• Advance: 50 degrees
• Retard: 0 degrees

Lock out:

• Inlet: 20 degrees BTDC
• Exhaust: 9 degrees ATDC

Many Thanks
Tom Haryett

What do you mean by lockout? The neutral/deenergized/disabled state is 0,0.

Mike,

Sorry this is not clear.

The 20 degrees BTDC and 9 degrees ATDC refer to when max lift occurs with the phaser in lockout/deenergized state.

I see where you got those numbers now. I believe what that means is that’s the actual ivc and evo when the phasers are at 0/deenergized. For comparison, the 3.5 eb ivc for the phaser ranges from -50 to 0 but ivc is 21 atdc at 0. Full advance and full retard roughly line up the same as gen2/3 coyote. Gen1 and 4 are more like ecoboost. Gen2/3 are more like gt500.

I took apart a gen3 exhaust phaser and believe what you are asking is correct or very close to it. There might be another 5 deg wiggle room but the mechanical stops are very close to the numbers you posted if not dead on.

Is there any chance of piston to valve contact with standard Gen2 cams and phasers? Can I move the phaser all the way to there mechanical stops when on the dyno?

I’m nearly certain the mechanical stops won’t allow pv interference. But don’t risk your motor on my word…

That is the $8000 question.

I was hoping someone would have logged what advance / retard the Ford control module puts into the cams on a run.

I have a file from a gen2 ford control pack (if that’s what you’re referring to), but it’s in .tec format.

Here is a stock gen 2 control pack:
Attachment 144350

Quote:

---

Originally Posted by B E N

Here is a stock gen 2 control pack:
Attachment 144350

---

Thanks Ben

Inlet:

Max advance: 20 degrees
Max retard: 50 degrees

Exhaust:

Max advance: 0 degrees
Max retard: 50 degrees


I believe the cam timing events are as follows (I had the exhaust advance/retard the wrong way around in my first post)

I would still appreciate some confirmation if anyone knows

Your first post was correct.

Everywhere else I have found shows the exhaust cam only ever retarding and never advancing?

In the exhaust cam, 0 is fully advanced and 50 is fully retarded.