Originally Posted by ADRENALINE KA
Martin you need to up-date your resto thread
with what?
i havent done anything to it, i've been busy fixing my mondeo!
Originally Posted by DazC
The YB is heavy for a reason! It's got a set of rods that make the Zetec rods look like welding wire and a crank that matches. It also has a block that can take a lot of torsional twisting and an oil pump that works properly at high RPM too as it has wider pump gears and doesn't cavitate.
its well proven that the YB is strong, but who has pushed the zetec to its limits yet to see what it can really do? its physically smaller and lighter than the YB, plus the ST170 head can flow basically the same amount of air when ported (according to the CNC heads site, it flows slightly less on the inlet and more on the exhaust). if i were to build a monster YB, i'd probably spend the same as i would on the zetec anyway, so cost really dosen't come into it. i like to do things differently
