Napoleon85

Wouldn't you want to set it a couple hundred RPM past where the max horsepower is? Why would you want to cut fuel at the point where you are making the most power?

hawkeye18

It has been proven over and over and over and over again that shifting AT peak HP costs a lot of time and wastes a lot of power. It's not just what RPM you shift out of one gear at, it's what RPM you will enter the next gear at. That is why you go past peak RPM.

JIM5.0

Actually, you never want to shift according to peak HP, you really want to shift in relation to when you are leaving the meat of your torque curve.
Max HP is almost always nothing more than an indication of how well your engine can produce decent torque at a high RPM.
And believe it or not, it is possible to get 500 HP from only 100ft-lbf torque. You just have to rev beyond all FUBAR of an RPM to do it.

Considering the torque curve's meat, you ideally want to rev your engine to the RPM where your torque curve is dropping and then shift such that the next gear puts your RPMs down to where you are beginning to enter the meat of your torque curve.
You can actually feel this effect when you know when to shift. The car pulls hard throughout all gears in a given run.

If your car is already dropping in torque at only 6500 RPM, your engine has something wrong with it. The Coyote holds onto its torque above 7500 pretty well as modders have proved by tuning ad moving the rev and fuel cut-off limits.

jimj3125

Well, ok then. Thank you all for the great info. Someone said you never stop learning and you guys proved it. What a great forum.

FastDEW

2010 forward has this feature. It's not adjustable as far as I know

EP2010

my 2010 does the same thing its kinda cool

angryBits

Found it on mine by accident - was kinda shocking at first.

Jiggy_One

One think you guys probably dont also know is that if any of your other gauges are showing trouble, like you are on E with gas or your temp gauge is in the red, then the whole gauge glows red like the tack does. Take your car to E on gas, way past the gas light and you will see it.

Napoleon85

I'll take your word on that ... running out of gas is not fun.

JIM5.0

I agree. I too have run out of gas, even to the point that fumes were gone and the fuel rails were bled dry.

Restarting the car and turning and turning and turning the starter to prime the fuel rails again must not be a good thing for a number of reasons: the fuel pump running in a dry state, the injectors with a lot of air in it, etc.