its not that ford is undertuning our setup. Ford never tuned for our setup. they tuned for the intake and paper filter, a tranverse drivetrain, and at least a different catalytic converter, if not 2, plus a muffler and resonater.
thats nothing what caterham drivetrain looks like, and i have a mild setup. Snake Bit is louder than many cars on the road, but se7en owners question whether the engine is actually running!
I think someone actually dyno'd a zx1 or 2 zetec setup as it comes from CatUSA and it barely broke 100rwhp on a manufacturers rating of 147chp. with a less restrictive exhaust like we have and a more efficient drivetrain we should be seeing more power to the wheels than a focus or contour stock, not less.
So i think there is some fuel mapping to be revamped, and once the Air Intake Temperature situation can be straightened out, I think much power can be reclaimed.
how much? 20+ peak rwhp on the conservative side. possibly manufacturer's crank claim at the wheels from a good tuner.
thats without playing with the valve size, crank duration, or porting. or a better flywheel.
unfortunately i only plan to go as far as intake in the next year, and EM the year following.