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Originally Posted by jpd80
The coyote was not designed from scratch, it uses the 4.6 Mod V8 deck height and bore spacing,
allowing an existing engine machine line used reduces delivery time by around 12 months.
I know it's going into the revamped Essex factory in Canada but the machinery set up is
basically the same as used in the previous 4.6 engine lines at Romeo and Cleveland
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Hmm, kinda right. Yes it shares the mod v8 deck height and bore spacing but that was a design limitation RE production plant....that is not a 'existing tech' carry over. There was no advantage in
development time saved in doing this (not signifnicant any way) it was just a limitation. Other parts of the engine were carrried over and/or used as a basis for design but hardly any engines are ever 'totally new'. IF they dont' pinch stuff off the existing engine they base it off current 'best practice' in the industry...including stripping down your rivals engines....Ford's decition to use existing plant equipement for the engine while still meeting its targets was smart engineering is all....
Its like saying Ford Aus saved development money on the BA DOHC VCT Barra engine because it shares it bore spacing with the SOHC non VCT engine from an EA of 1989...or even older versions of the engine for that matter.... Not so, you still need to develop that tech to work on teh given engine in a given time, to a given set of targets (power, torque, nvh, fuel burn, reliability etc.). In this case with coyote having a new block, new piston design, new heads, new intake runners, TIVCT, different oil system and even custom design headers i'd say its a 'new' engine for me..... Otherwise you risk sounding like Holden fans telling me the FG I6 is really just a 1960 american falcon I6 donk....
Coyote was a sped up engine design no doubt, but the time saved was in initial scoping and targets (ford got that down pretty clear), and early design work. This was by using more CAD, building more 'hybrid mutant' engines from scratch and tearing them down, using tricks learnt on the V6 and other V8 programs and good old fashioned overtime. The reliability testing was the only bit of the pogram that wasn't sped up.....