Quote:
Originally Posted by stilesg57
Nice, I'd read somewhere awhile ago that it was 13.5:1 which might bode even worse for FI so I'm glad to hear that's not the case.
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Trust me, you're not the first one...
Quote:
Originally Posted by stilesg57
Regarding the tq curve: how is that emphasized when there's still a dip (albeit a smaller one) and even it's not a full 20% gain either? Just seems like this engine is all-around less efficient than the outgoing FA20.
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It's not just more displacement, but also more air they suck in through the intake (possibly more losses?), the pistons have to be bigger (and heavier), connecting rods stronger (and heavier), the exhaust header still needs to go a weird way around the steering rack, etc.
They've put more stuff into basically the same dimensions and overall weight, so it's reasonable that they couldn't just simply achieve the same 20% gain associated with the 20% extra displacement.
It would be a different story if they created a boxer-8 FA40 by combining two FA20's together on a dyno stand
