VTEC only refers to Honda's twin stage variable valve timing system. (Not the whole engine) In the early years (1993-2000 or so) the cams only had 2 profiles so the VTEC "kick" would hit at high rpms.
Nowadays, they have iVTEC which is more variable, I think on both intake and exhaust cams and it is more or less infinitely variable over a range of camshaft overlap angles. Of course, it's not truly infinite, but much more so than before.
Duratec of course is the name given to the line of engines which include the 2.5, 3.0 V6 and now the 2.3 4-banger. I believe in Europe there are more 4-cylinders that wear the "Duratec HE" designation.
Ford used to say no tune ups required for 100k miles, but every manufacturer seemed to drop that claim in the late 90s.
Kerry
99 SVT Contour Silver Frost, #365/2760, DMD
98 Audi A4 2.8 Quattro Tiptronic, 30V -- SOLD!
91 Isuzu Impulse XS Kammback, Handling By Lotus
Victoria, BC, Canada
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