Our tester from TX have provided the results of the cam bucket swap
They are as follows:
measurements:
Old cam bucket 3.024mm
NEW cam bucket 3.056mm (+29 microns)
The new measurement was done after a break-in drive so any coating on the new cam bucket would not affect the measurement
Fuel Pressure was 2966psi at WOT and 630psi at idle before and after the swap
Initial impression may be placebo but the car felt smoother at tip in and wide open throttle.
The test car has 76k on the odometer and is meticulously maintained. This car is also has a hybrid turbo upgrade with about double the factory BHP on tap
Some owners that may not have as frequent oil change intervals could see additional wear
Most UK Fiesta owners go after this mod nor only as a maintenance item but as a safety check or "cheap insurance" when they are about to bump up the power significantly with a turbo upgrade or fully tuned full bolt on.
Picture of cam bucket replaced at 76,000 miles