aem fic on an N/A motor?

[Jason@SportsCar]

Originally Posted by BEEF

Jason (or anyone),

the final drive on the xB that you speak of is basically 4.3:1, what is the stock yaris one? I just wonder how gonzo it will be. I actually like that idea. I am gettin roughly 40-41 mpg right now and I could stand to lose a few. I would be alright still getting 35 or so.

Stock is 3.722, xB is 4.312.

At 65mph in 5th gear (with a 23" tire):
stock 2900rpm
xB 3350rpm

If you look at "rated" fuel economy numbers a 2007 Yaris is rated 29 city/35 hwy, the xB is listed at 27/32. I would expect part of the hwy loss on the xB due to it being a toaster on wheels, with that in mind I would guess that this change is about a 2mpg loss in a Yaris - but worth it for the acceleration.