427 or coyote?

[Cashburn]

Originally Posted by redchief

The stack injection in the photo has a priority developed ECM that is a stand alone plug and play system. It comes with the harness and all you have to do is hook up the stock sensors from the Coyote. It controls the variable cam timing and takes sensor data from all of the stock sensors including "knock". After three days on a diagnostic engine dyno, a stock 5.0 L engine developed 437 hp at a 6500 rpm limit with an extend rpm range for peak torque to 5400 rpm peak torque of 375 ft lbs. No chassis dyno programming is required with this system.

Not to get in a side debate here, but the lack of tuning initially is likely what is limiting the output of that setup. 437HP is a shortfall from what a standard Coyote setup can achieve (with tuning of course ) in a "Cobra" setup.

[redchief]

I agree on the no debate statement. The Coyote will make great HP. We kept the rpm development to 6500 even though the engine will rev to 7000 all day. At the time, we had only one engine to do development. More HP will come with this additional 500 rpm. The engine we used was a stock 412 HP crate engine so the 437 HP was an improvement over the stock engine and was obtained by the Stack Injection and 3 day dyno development.

Many of us have spent a lot of money and time going through the chassis dyno tuning. Many people do not have a qualified facility available close to their location. This is the where "plug and play" set-up we provide adds some advantages.

I am for any development that provides the Coyote engine for Cobras and other vehicles. I wish you well with your endeavor on development of your package