Taller gears will keep RPMs down when cruising on the highway which is what that car is for. The higher stall speed of the torque converter makes up for the possible loss of acceleration from a stop. -Curt From: Donald Snook via Mercedes <mercedes@okiebenz.com> To: Mercedes Discussion List <mercedes@okiebenz.com> Sent: Wednesday, February 18, 2015 10:43 AM Subject: Re: [MBZ] interesting 123 I have always had trouble understanding rear end ratios. So, a lower number is a taller gear and you get better fuel mileage at the cost of acceleration, but you get higher top end speed? Is that right? Why would they want to reduce acceleration on a diesel? Is it because it has the turbo to help with acceleration and thus the trade off is mitigated?
Don Snook -----Original Message----- From: Mike Gildea [mailto:mikgi...@icloud.com] Sent: Wednesday, February 18, 2015 8:11 AM To: Donald Snook; Mercedes Discussion List Subject: Re: [MBZ] interesting 123 Yes, the 85s are quicker off the line due to a high stall torque converter. Turbo engages almost immediately. It has a 2.88:1 rear end ratio for better fuel economy. It has a A/C cut out when flooring the throttle for more passing power. Has extra shift controls (vacuum) for smoother shifting. Mike G 2 85 300TDs > Isn't there some weird stuff about the 85 that is unique. > Don Snook > __ _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor. _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor.