Driftit 1964 Report post Posted January 28, 2009 Ok I am just wondering if there is many parts that are better on one motor than on the other? Or are they very similar? The 320's have a few little differences that when combined can lead to more power. Mechanical differences. Quote Share this post Link to post Share on other sites
|ncary 0 Report post Posted January 28, 2009 O2 sensor on the FL, different look of the intake manfold (more curvy). Both have the same 885 head. All I got Quote Share this post Link to post Share on other sites
drifty325i 0 Report post Posted January 29, 2009 The early ones had higher compression, and more power (only if its in good nick tho) Quote Share this post Link to post Share on other sites
Guest FrantiC Report post Posted January 29, 2009 The early ones had higher compression, and more power (only if its in good nick tho) All the Euro m20b25 were 9.7CR weren't they? I am pretty sure motor is the same all over. Other than differences for the ECU's, motronic 1.1 and sensors VS. the motronic 1.3 and sensors on later models. Quote Share this post Link to post Share on other sites
Palazzo 440 Report post Posted January 29, 2009 According to the owners manuals, 9.7 CR on the PFL and 8.8 CR on the FL. Quoted at same power and torque figures though. . . . . Quote Share this post Link to post Share on other sites
Guest FrantiC Report post Posted January 29, 2009 http://www.bmwccn.no/rogaland/Mahle_m20.html 87-90 are 8.8:1 if they have a CAT. Meh I dunno. Quote Share this post Link to post Share on other sites
