 Optimum speed for best MPG, Anybody? |
 May 8, 2009 - 2:57 AM
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Enthusiast  Joined Feb 6, '08 From Oregon Currently Offline Reputation: 8 (100%)  |
So every car has an optimum speed to achieve the best MPG, I am curious if anyone knows what the optimum speed is for our celicas?
Both 5SFE and 7AFE. I know there is an acutal formula to figure it all out, but i dont have it anymore:( thanks -------------------- 1 JL 1,000/1v2
2 JL 12" W6v2 2 Focal 6.5 component 165a1 Kenwood DDX512 head unit Running 142.6db with the back seat up:) |
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Replies
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May 8, 2009 - 4:48 AM
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 Enthusiast Joined May 24, '03 From Milton, Delaware Currently Offline Reputation: 0 (0%) |
This is something I've always wondered about...
Shouldnt we be achieving the best mpg when the engine is at the lowest possible rpms while in the highest gear without bogging the engine? For example cruising at 40 - 45 mph in 5th gear I'm guessing is around 1.5k rpm and should in theory be burning less fuel per mile than it would at 55 mph at 2k rpm? I have one buddy that insist that no that's not true but at least with my current understanding of how EFI works it makes sense to me and that the 55mph speed limit is actually pretty arbitrary and a generic 'efficiency point'. Anyone want to correct / verify this? -------------------- AIM : FAQdaWorld
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Posts in this topic
Legit94GT Optimum speed for best MPG May 8, 2009 - 2:57 AM
razor7 QUOTE (Legit94GT @ May 8, 2009 - 12... May 8, 2009 - 4:31 AM
blu94gt QUOTE (razor7 @ May 8, 2009 - 4:31 A... May 8, 2009 - 4:39 AM azian_advanced QUOTE (FAQdaWorld @ May 8, 2009 - 4... May 8, 2009 - 10:44 AM razor7 QUOTE (FAQdaWorld @ May 8, 2009 - 2... May 9, 2009 - 4:03 PM JoKeRkId613 thats how i thought it worked. ive always seen it ... May 8, 2009 - 7:14 AM jimmykay If you're REALLY wanting to improve your gas m... May 8, 2009 - 8:06 AM reko The APA stated that past 100 km/h, every time you ... May 8, 2009 - 8:58 AM Legit94GT I am not looking on improving my MPG as i am very ... May 8, 2009 - 5:38 PM azian_advanced QUOTE (Legit94GT @ May 8, 2009 - 5:3... May 9, 2009 - 7:25 AM presure2 QUOTE (Legit94GT @ May 8, 2009 - 5:3... May 9, 2009 - 8:01 AM lagos slow and steady gets you the best mpg, but also a ... May 9, 2009 - 9:01 AM Tigawoods or not driving at all May 9, 2009 - 10:23 AM Legit94GT never mind May 9, 2009 - 3:05 PM Maxtumare 25 mph for the gt, yeah I know it's slow but y... May 9, 2009 - 3:24 PM Legit94GT ^^^ You clearly have never driven in oregon every... May 10, 2009 - 1:04 PM GriffGirl I've found consistently that I get my best MPG... Jun 4, 2009 - 3:28 PM creis optimum speed for best MPG, I dont think there is ... Jun 4, 2009 - 4:48 PM dustin15brown 6, i say 6 miles an hour.... that'll get it Jun 4, 2009 - 5:47 PM |
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