Originally Posted by Asphalt Cowboy View Post
One another note, DW Burnett where are ya?! Give us some news please!
Hey sorry about that, hoped to do another crank sensor relearn routine tonight like I promised, but actually ended up not driving the Mustang at all today.
However I can report that the situation all day driving on Sunday was very minimal pinging, same as Saturday. I really have to be in WOT and above 4K to get a couple very brief ticks out of it. I drove a couple hundred miles over the weekend and just enjoyed the car. The torque made cruising the back roads a pleasure, could just leave it in 4th and effortlessly pick up 10-15 mph out of a sweeper with just a gesture of the right toe.
Today I called Ford Racing to make sure that they had my warranty registered from Friday. I know this topic sort of falls into the beating a dead horse category, but in the course of that conversation I grilled the guy ("Tom") a bit about why the instruction manual would say use octane adjust "Y" if there is "audible spark knock", but then over the phone why they would say "don't worry about it, you can run it on 'N' no problem". His response was that real pinging would be heard all over the RPM range, and not just in one small spot or for one split second. Which is exactly the opposite of what someone else at Ford Racing said on Friday, which is that if it pings, it would be around 5500 rpm. Huh? The customer service over there is unfortunate, and gives the impression that either 1. those guys who answer the phone don't really know what they are talking about, or 2. that it's a smokescreen and they are knowingly ************ us. Either way that's too bad, we are all enthusiasts who want real answers; no one wants to have their intelligence insulted. I told him exactly what my car was doing and he said leave it on "N", there would be no problem whatsoever. It's strange to think that a company that would be potentially on the hook for an expensive engine replacement would directly instruct someone to do something that they know would make that situation more likely. They must have a reason they are so confident about the tune, I just wish they could explain it to us.
So I have to think that since there have been, as far as I know, zero warranty claims against FRPP as a result of this tune, that it probably really is pretty safe. I've read in another thread where Mike (MBreinin) suggested that Ford couldn't tune out the ping completely in order to pass emissions. Which kinda makes sense. I'm just postulating here a bit as well.
They keep saying "catalytic impingement" every time on the phone. I know no one has ever heard of this. Could there be any merit in the idea that some of this noise could be coming from the catalytic converter? Or are we officially calling ******** on that?