 O/D on or off?, a few questions about it |
 Feb 28, 2007 - 8:53 PM
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 Enthusiast  Joined Mar 28, '06 From Brooklyn, New York Currently Offline Reputation: 1 (100%)  |
What does overdrive do?
What's the advantage of openning it? I always wondered what that damn button does. This post has been edited by LeonStryfe: Feb 28, 2007 - 8:55 PM |
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Mar 2, 2007 - 8:37 AM
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 Enthusiast Joined Mar 3, '04 From Portsmouth, RI Currently Offline Reputation: 33 (100%) |
QUOTE(DSToyo @ Mar 1, 2007 - 12:28 PM) [snapback]531719[/snapback] *more gas mileage because you wont be in high rpms in third gear srry to jack the thread, but don't manuals get better gas mileage than autos because they have that fith gear? ive heard mixed opinons QUOTE(Negative @ Mar 1, 2007 - 12:41 PM) [snapback]531727[/snapback] Not on our cars. the manual's 5th gear leaves you at 4K RPMs @ 80MPH whereas the Auto's 4th Ratio [not gear technically] leaves you at roughly 3K RPM @ 80MPH [IIRC from my 95 GT Auto]. This is also why having your O/D on gives you better gas mileage at freeway speed than with it off [it does I promise - that's really the point of it]. thats the first thing I noticed about highway driving after the tranny swap. you still get almost twice as much gas mileage with a manual. it just isn't because of the gear ratios. my guess was that the auto tranny is so much heavier, has the torque converter, and uses a lot more electricity and brainpower from the ECU. -------------------- |
Posts in this topic
LeonStryfe O/D on or off? Feb 28, 2007 - 8:53 PM
I3arruka Overdrive allows you car to go into 4th gear. If y... Feb 28, 2007 - 8:59 PM celicaST OD is just the 4th gear. turning it off makes your... Feb 28, 2007 - 9:02 PM cnelson wow, never knew that. Now whenever i'm on the ... Feb 28, 2007 - 9:49 PM LeonStryfe Wow >_> i too didnt know that, I thought th... Feb 28, 2007 - 10:23 PM cnelson Overdrive sounds like it would take up more gas...... Mar 1, 2007 - 11:51 AM DeW_H0e_GT having it on n off has its advantages n disadvanta... Mar 1, 2007 - 12:18 PM DSToyo *more gas mileage because you wont be in high rpms... Mar 1, 2007 - 12:28 PM
I3arruka QUOTE(DSToyo @ Mar 1, 2007 - 5:28 PM... Mar 2, 2007 - 9:48 AM Negative Not on our cars. the manual's 5th gear leaves ... Mar 1, 2007 - 12:41 PM Batman722 http://en.wikipedia.org/wiki/Overdrive_%28mechanic... Mar 1, 2007 - 1:36 PM |
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