Quote:
Originally Posted by cyde01
the latest best car (japanese car mag) had a comparison between the ej20 and fb20 and review, but the reviews were mixed at best. one reviewer was impressed with the improvement in low and mid-range torque and smoothness, while the other complained of valvetrain noise after 2000 rpm and poorer engine feeling at wide open throttle than the ej20. this is in stark contrast to the absolute rave reviews the mazda sky-g engine got a page later.
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Interesting.
The valvetrain noise is likely from the switch to finger followers instead of the old shim and buckets.
Did they go anymore in-depth on the poorer feeling at WOT? If it's from mashing the gas I wonder if maybe they have a non-linear E-throttle. (Hated it on my buddy's Yaris...)
If it was an acceleration 'feeling' or something, it could have to do with maybe the new motor not having as much peak airflow (from what I was talking about before from the port shapes), and power could be falling off at high revs faster than the old motor (even though the HP peak numbers are the same). Same thing could relate to the improved mid-range too.
Motivation for me to study Japanese a little harder... (Yomimasen...)