Ford Performance Power Pack 2 any affect on gas mileage ?

[1380KPOI]

I’m aware of that. I’m saying the speedo is unchanged when installing pp2 without changing tire setup. During the tune installation the wheel diameter are what it came with stock.

So then explain to rest of us who have the stock 19" rims instead of the stock 18" rims why their speedometer is off....

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[Freedom]

So then explain to rest of us who have the stock 19" rims instead of the stock 18" rims why their speedometer is off....

It’s only you? The Ford tool shows what’s already written in the pcm or whichever component houses that data.

 

[Lbdyll]

Honestly haven't seen really any MPG change since installing. also I didn't have to change anything for the speedometer to read correctly.

 

[Monty17GT]

I went from 14.9 to 12.0 mpg I have no idea how some people are getting over 20 mpg :shrug:

 

[Fredboy]

Honestly haven't seen really any MPG change since installing. also I didn't have to change anything for the speedometer to read correctly.

People are assuming that the speedometer is off when in reality, we are looking at it from an angle when sitting normally in the drivers seat, so it appears off. If you move your head a little to the right, you'll notice it reads a little differently at highway speeds. Mine was less than .5 mph off the cruise control speed and referencing with the gps. This was going from 18" to 19" wheels.

 

[StingyStang]

Just reset my counter at the stasrt of an 80m mile trip. 23.5. if i drive it around town too, it will drop to 15 or so.

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