i've been daily driven the stock OBD1 p72 manual b18c gsr engine in ek 4 doors almost 2 years now. It's a combination of highway and city road and all i can say it's a good engine with good fc thanks to its longer tranny. The down side by using the gsr tranny covered up with the higher torque number the b18c produced compare to b16a engine which have shorter tranny. I don't have the exact fc no. but i would say the fc is quite the same with 1.6liter sohc vtec auto previously in my engine bay with much much more power