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Low-Rev Driving

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Old Sep 8, 2010 | 07:38 AM
  #1  
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Default Low-Rev Driving

Lately I've been shifting at a slightly lower rpm.

I was thinking I would use less gas because of the lower rpms, and it seems like it's easier on the engine, as long as I'm not shifting so low that it bogs down and sh*t.

My friend says it will f*ck ANY car up doing this because he swears the car "gets used" to driving slow. fp.gif

He's a retard, chairhit.gif but is there any truth to what he says, that my car will lose it's "quickness" by driving it this way.

It's only an experiment... dunno.gif
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Old Sep 8, 2010 | 01:07 PM
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It looses its quickness until you increase engine speed into the power band, when the quickness returns. Never ask that friend for mechanical advice.
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Old Sep 8, 2010 | 02:20 PM
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Certain ecu's, like any ROM, after being reset will relearn their parameters and sluggish driving will produce sluggish maps that it will have integrated into its memory. That's only after being reset.

ROM stands for Read Only Memory. After being reset it takes all sensor and data values and remakes a map

Your friend is partially correct, as far as changing running conditions, its not going to "f up the car".

You have nothing to worry about is my main point
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Old Sep 8, 2010 | 02:33 PM
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Is it an automatc? No.. then dont worry about it. My sonata finally woke up to the way I drive and I like it alot more now. My elantra? I drove it like an assclown always and the turd would still shift to a weird lean before 4.5k over rich over map after about a week.
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Old Sep 8, 2010 | 09:37 PM
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SR Tech, the 2000 Tib is not a car with a learning ECM. It responds to current conditions and adjusts to conditions that exist at the moment. Long Term Fuel Trim isn't the same as "no power anymore." The transmission controller does learn your driving style to a certain extent, but if the OP is talking about doing his own shifting, that's not a problem.
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Old Sep 9, 2010 | 05:21 AM
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QUOTE (SR Tech @ Sep 8 2010, 04:20 PM)
Certain ecu's,



I am very aware of this, mostly why i didnt say "ours". Making a point that they are out there
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Old Sep 9, 2010 | 12:42 PM
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:shrug: you didn't specify that you understood the distinction
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Old Sep 9, 2010 | 02:48 PM
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While it doesn't logically make complete sense to me, if someone who driver conservatively owns a car for several years I have experienced degradation in performance outside of the vehicle's normal operating range. Whether that is due to the operator never exceeding a certain RPM range or never exceeding a low amount of throttle input I have experienced this at several times in my life.

The only way this makes sense to me is if cars that are never run very hard develop more carbon deposits due to lower combustion chamber temperatures and lower a/f mix velocity.

I have bought cars that had this issue, and after a while of driving the issue corrected itself, further leading me to think it's carbon deposits.

I've had it happen on carbureted vehicles and fuel injected vehicles, so it's not all in the ECU.

I am certain that it will not lead to any sort of long lasting damage beyond the slightly increased likelihood of clogged fuel injectors or a gummed up carburetor.
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Old Sep 9, 2010 | 08:24 PM
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That would be your great-grandmother's car. Sumdood driving a Tibby is unlikely to entirely avoid 5k+RPM
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Old Sep 10, 2010 | 09:30 PM
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You would be surprised. A few people on here have said that they don't ever get to 5k.
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