Throttle Position During Acceleration and its effect on FE
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Metro taller tranny swap thread = +8.8% mpg & long-legged beauty *
I have heard of this technique before so I think you are probably on the right track. This is the technique that I normally use but have never thought to test the mileage differences between "normal" shifting and this method. Depending on conditions, I either do 1-2-5, 1-3-5 or some variation. I rarely use all 5 gears unless I am puuling onto a crowded highway.
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Traffic, traffic, and more traffic
<p>I've actually done this before. The difference for me, however, is that I didn't take it up to 50mph in 2nd gear. I took the 87 CRX Si to about 3000rpm and them went into fifth gear for cruising around town. I followed the 1-2-5 pattern.</p><p>The engine didn't mind at all. Performance wasn't affected. A few other times I've just skipped 4th gear and done 1-2-3-5.</p><p>I usually save about 500 RPM by crusing around in 5th gear, so it's worth it to me.</p><p> Now, the WOT theory is something I'm not sure about. For the insight I believe flooring the gas will click on electric assist (their electric motor will give an extra 10hp when it's assisting the gas motor), thus making it easier to accelerate and also will not affect their gas mileage as much as WOT affects a standard car's gas mileage. So in reality the insight owners are cheating a little with their little electric motor.</p><p>I think moderate acceleration and the 1-2-5, 1-2-3-5, or 1-3-5 shifting pattern is going to help a lot more than WOT. </p><p> </p><p><br /> </p>
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New gas pig
I agree with everything that has been said, it is just I wonder how much difference it will make. Sometimes is I have to hustle I will rev to 2500 and skip a gear but usually I just 2000 all the way. I can't test it out myself because I'm auto (for the time being), but hopefully some sort of test can be figured out, though I think it should be pretty hard to pull off. <br />
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Hello, from Gary
Eventually it would be a fun test to do one tank of 1-2-3-4-5 shifting (and never to cruise in 5th in the city) and another tank of 1-2-5 shifting. I think that this is doable down the road as an experiment.
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Hmm
Yeah, I tried 1-2-5 WOT shifting today and not only did I take off like crazy so that it would be impossible to do under normal traffic and [i]I just don't understand. Can anyone tell me why this would help for gas mileage? It seems like the camry musta dumped a cup of gas in there when I had it at WOT for those 4 seconds. It was fun though, but not worth getting 20 mpg.
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I have a suspicion that the
I have a suspicion that the fuel mix goes way rich during this style of driving. It might be more efficient to accelerate when the engine is actually producing some power (~3000rpm) so it doesn't have to compensate with the mix. It's just an idea though. Hopefully I can test this when I install my AFR gauge.
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Aha
That actually makes a lot of sense to test it then, good thinking.
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Linky
So, guess what? In my quest for ecu tuning I found this thing that says WOT acceleration is the best for gas mileage, and some who say it is, whaddya think about either side of the argument:
<a href=https://forum.pgmfi.org/viewtopic.php?t=7342&highlight=fuel+economy target=_blank>PGMFI Stuff</a> |
Can you copy and paste? You
Can you copy and paste? You have to register to view that link. I've got nothing against that, I'm just lazy.
Only way to know for sure is to test it. |
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