Cam Timing Information

[TX5OH]

I am thinking about doing cams. I know with the VVT the cam timing varies, but do any of y'all know what the timing events for the Gen 2? I found them for the Gen 1, but no luck in find Gen 2 specs or at least anything that confirms the Gen 1 timing events were used on the Gen 2. I know lift increased. I would like to know what centerlines and how much I can swept them. Looking at the NSR cams, about 500 rwhp seems to be the ceiling without doing ported heads. I am basing this on the dyno graphs I have seen on here and also using software to simulate my setups. However, I have found that I if I can increase the lift I can get even higher numbers. And also, it appears there is more power in going lower in valve lift than the 0.512" stock lift, but going a good bit longer on the duration, and playing with the LSA.

Below is what I have found for Gen 1. I am hoping I can find Gen 2 or confirm this works for Gen 2.

Stock Mustang GT 5.0 Coyote Cam specs:

Intake Cam:
Advertised: 263
.050": 211
Lobe Lift: .235"
Centerline (Park / Max): 139 / 89

Exhaust Cam:
Advertised: 263
.050": 211
Lobe lift: .216
Centerline (Park / Max): 123 / 73

Valve events @ Park (no adv/ret) @.050":
IVO: 33.5 ATDC
IVC: 64.5 ABDC
EVO: 48.5 BBDC
EVC: 17.5 BTDC

Total overlap (Park) @.050: -51

Valve events @ Max @.050:
IVO: 16.5 BTDC
IVC: 14.5 ABDC
EVO: 1.5 ABDC
EVC: 32.5 ATDC

Total overlap (Max) @.050: 49

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[bauern]

https://www.mustang6g.com/forums/threads/factory-cams-in-2016-mustang-gt.76850/post-1740418
Don't know if it's accurate but...

 

[TX5OH]

https://www.mustang6g.com/forums/threads/factory-cams-in-2016-mustang-gt.76850/post-1740418
Don't know if it's accurate but...

This is perfect. Those look about what I thought they would be based on what bits and pieces I had found so far.

Thanks for the link!!

 

[TX5OH]

I am working on validating my setups and will come up with a cam I want to use, which may be an off the shelf one or a custom grind I design. The software over predicts slightly, but it is an older version. A buddy of mine has newer version and it is a little more accurate.

 

[WildHorse]

https://www.mustang6g.com/forums/threads/factory-cams-in-2016-mustang-gt.76850/post-1740418
Don't know if it's accurate but...

According to that.. The fingers are at a 2.02:1 ratio. That can't be right ? .2535 cam lift (according to the chart) times 2.02 ratio = .512" valve lift.

 

[TX5OH]

According to that.. The fingers are at a 2.02:1 ratio. That can't be right ? .2535 cam lift (according to the chart) times 2.02 ratio = .512" valve lift.

Most of the literature from ford gives everything in mm . 13 mm is the lift they say which is 0.5118”. It’s just probably some rounding error.

 

[WildHorse]

Most of the literature from ford gives everything in mm . 13 mm is the lift they say which is 0.5118”. It’s just probably some rounding error.

Yea was just curious. Now I know how they get such high valve lifts on relatively docile camshafts.

 

[engineermike]

The vvt timing is in the calibrations for these engines. If you have hptuners you can download various stock files and see what they do. I have the voodoo and 2018 downloaded but not the other stuff. The weird thing is that the cal commands an evo and ivc, but 0 isn’t tdc. There’s an offset elsewhere in the tune. The 2018 5.0 moves the intake cam from 20 deg advance to 24 deg retard as rpm rises. At cruise it retards both 40-50 degrees.

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