History Repeats itself

[Lew Silverman]

Not wishing to put words in anyone's mouth, but I think Mike may have meant that an "interested competitor" could somehow convince Ford (or GM, Chrysler/Fiat, Toyota, etc.) to publish the specifications to allow inclusion into the Classification and Engine Blueprint Guides. The information should be available, as I am sure the OEM's have to furnish most of it to various governmental agencies in order to be allowed to market their products. Whether they WANT to release that information on vehicles which they have decided they have no desire to market for drag racing competition (which seems to be the almost overwhelming answer we have been receiving since the last full update of the Guides') will be the big problem.

[ALMACK]

Originally Posted by Lew Silverman

Not wishing to put words in anyone's mouth, but I think Mike may have meant that an "interested competitor" could somehow convince Ford (or GM, Chrysler/Fiat, Toyota, etc.) to publish the specifications to allow inclusion into the Classification and Engine Blueprint Guides. The information should be available, as I am sure the OEM's have to furnish most of it to various governmental agencies in order to be allowed to market their products. Whether they WANT to release that information on vehicles which they have decided they have no desire to market for drag racing competition (which seems to be the almost overwhelming answer we have been receiving since the last full update of the Guides') will be the big problem.

I see what you are saying Lew.
After re-reading what Mike wrote, I can see your point.

I still wonder if IHRA has a way to verify the variable cam timing deal for Pure Stock.

[Steve Stickel]

Al,
There are ways to check all this but may seem complicated to those who are accustomed to a non- Ti-VCT engine. The cams would have to be checked with the cam phaser at the park position (no adv. or ret.) @.050.
Here is an independent evaluation of the stock Coyote cams.

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
http://www.svtperformance.com/forums...cam-specs.html

The lobe lift they describe is exactly what is in the2012 Ford Manual DVD,
(.235in, .216ex) with a stock rocker ratio of 2:1. = .470 / .432 .
Where Ford- NHRA got a total valve lift for a Stock 2012 coyote of .519 intake and exhaust is beyond me, despite being over factored at 380 vs the Cobra jet 302 at 350....
Almost all the engine data and specs for the 2011- 2012 V6 and coyote are in this DVD... Borrow it from your local Ford Tech..Just set the date of your computer to the date of the dvd....

[ALMACK]

Thanks Steve !
That is very helpful.

Alan