matty325

has anyone ever built one? thinking of doing one for my mk3 xr3i. the reason being i want to keep it looking original under the bonnet as ford intended.i know full zetec would be easier and give more power bla bla but i just want maybe an extra 20-30 bhp with some cvh head work/cam and 2.0 bottom end .would the mfi be up to fueling one?

haz87

I built/use one (tho 1.8 bottom end) following me absolutely obliterating my CVH and needing to build something quick. Mines all on Mfi, its easily capable

matty325

thanks mate your just the type of person i was hoping would reply ,was there much power gain over the cvh ,did you do any head work? was compression ratio an issue? ,cheers matty

haz87

I skimmed the head quite a bit to bring comp ratio up. It was a power drop for me as my CVH (n/a) had absolutely the best of the best at the time. But its a daily driver and the ZVH suits traffic and general cruising far better.
I imagine on a standard CVH, a zvh would feel far better even on a standard port skimmed head and decent cam purely from the torque benifit

matty325

Any idea what compression ratio it has?how much did u skim off .do you think it can be done with the two litre as well

haz87

2lt is perfectly do-able however there is extra welding required on the mating surface (well documented if you google).

Skimmed 1.5mm or maybe 2 (it was a good 3yrs ago) bought comp upto around 11:1

However this leaves very little margin for error on the head going forward.. as in dont warp it as you have little meat to re-skim

matty325

great thanks ,was decking the block an option do you think to save the the head a little?

haz87

Quite possible. Not a route i looked into tbh