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overly high rpms in 5th?

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  #1  
Old 07-09-2010, 12:07 AM
edepaolo's Avatar
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Default overly high rpms in 5th?

I was on the highway today, tossed it into 5th, and was cruising at ~60 mph when I noticed I was at 3k rpms, seemed a bit high to me. That normal?
 
  #2  
Old 07-09-2010, 12:22 AM
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I had made a thread on the exact same thing about 2 days ago. From the responses I got, this is normal for our cars.
 
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Old 07-09-2010, 02:43 AM
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that really sucks for you 1.8t guys, i can go 80mph at 3k rpms
 
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Old 07-09-2010, 10:45 AM
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Def normal. At 80mph I'm at about 3400rpm
 
  #5  
Old 07-09-2010, 11:32 AM
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It's weird, because in my 5spd I run at 3k @ 60mph, but in my automatic I run at 2.5k @ 60mph.

They must have different gear ratios...
 
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Old 07-09-2010, 01:03 PM
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They do.
 
  #7  
Old 07-09-2010, 02:22 PM
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Ya i'm not a big fan of the manual for that. I went from the Tiptronic where i could do 75 at 3k and get good gas mileage to the manual that goes 65 at 3k....
 
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Old 07-09-2010, 02:32 PM
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they have different ratios because the torque converter does just that. you have around the same amount of torque at 2.5k as a direct drive transmission has at 3k.
 
  #9  
Old 07-09-2010, 02:37 PM
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Very normal for a heavy 4 cylinder car. Lower RPMS doesn't mean your going to be getting better gas mileage since it will take more throttle to keep it at fwy speeds.

3500-4000 rpm during fwy speed is not a big deal for a engine that redlines at 7k. Some of the older Audi cars had a gear setup that put the rpms even higher since it had a 4.11 final drive with the same 5th gear ratio.
 
  #10  
Old 07-09-2010, 02:41 PM
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Originally Posted by Mike-2ptzero
Lower RPMS doesn't mean your going to be getting better gas mileage since it will take more throttle to keep it at fwy speeds.
I was going to say, the RPMs alone are not the determining factor for your gas mileage. Many other factors at play here.
 


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