Re: B20 QUESTIONS
I'll give you a bit more to think about.
Keeping everything else the same (rod ratio, exhaust, etc.)
2.0L Displacement 1929.33 cc
Estimated power
85 bore x 85 stroke
175 hp at 7600 RPM peak.
137 lb-ft at 6300 RPM
(170+ hp from 6700 to 8000 RPM)
90 bore x 75.82 stroke
176 hp at 7300 RPM peak
139 lb-ft at 6300
(170+ hp from 6400 - 8500 RPM)
80 bore x 95.96 stroke
169 hp at 7300 RPM
134 lb-ft at 6100 RPM
(Never makes 170 hp on this setup.)
Simply put, the serious under-square, in the same configuration, same displacement, makes less peak torque, and less peak power.
The only major advantages, are that you get far superior emissions with the long stroke engine!