x4dragstar400

But this R20A is a more advance engine developed from K20A
sammykwan 發表於 1-11-2009 07:54

not derived fr K20 family, it's a new series.....R  is only single cam i-vect

opted for saving gas........quite good at low torque.....

quite impressed when i drive my fan's 07 stream RSZ

K20A bore & stroke = 86x 86mm
R20a bore & stroke = 81x 96.9mm, it produce more torque from this config.

http://asia.vtec.net/Engines/R20A/index.html