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Manual transmission Fits now being built!

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  #21  
Old 06-03-2014 | 01:17 PM
PaleMelanesian's Avatar
Joined: Mar 2013
Posts: 238
From: Longview, TX
5 Year Member
Originally Posted by GeorgeL
I do agree that most would like to reduce highway RPM by more than a few percent, but a 1.5 liter engine isn't going to cruise the freeway at 2000RPM like a Chevy V8. 3000 would be more realistic.
Um... the automatic Fit does that now. 2000 rpm at 62 mph. Even at 75 mph that's only up to 2400 rpm.
 
  #22  
Old 06-03-2014 | 01:35 PM
tmfit's Avatar
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Joined: May 2014
Posts: 852
From: St Paris, Ohio
Originally Posted by GeorgeL
You're assuming that it is correct to begin with! Usually speedos are a few percent optimistic. Going from the stock 185/60R15 to 195/65R15 on my current car corrected the speedometer! The odometer is a different story, though, since they are normally pessimistic to begin with. It now reads 8% low!

I do agree that most would like to reduce highway RPM by more than a few percent, but a 1.5 liter engine isn't going to cruise the freeway at 2000RPM like a Chevy V8. 3000 would be more realistic.
Bryanflys posted this in response to a question about his:


Quote:
Thank you for posting! How many rpm does it turn at steady 70 mph on flat surface? Quiet ride?

Bryanflys response

Tach shows about 2200 RPM at 70 mph on flat road. Doesn't change with Eco mode. Pretty quiet in my opinion. You notice the engine noise on acceleration. With the CVT, the acceleration engine noise varies with accelerator pedal pressure, so as you press and let up, the RPM and noise cycles immediately, rather than staying more constant with standard gearing. I find myself concentrating on holding steady pedal pressure to keep the RPM and noise at constant level. Not a problem, just different with the CVT.
 
  #23  
Old 06-03-2014 | 01:43 PM
GeorgeL's Avatar
Member
Joined: May 2014
Posts: 1,545
From: SoCal, CA
Originally Posted by PaleMelanesian
Um... the automatic Fit does that now. 2000 rpm at 62 mph. Even at 75 mph that's only up to 2400 rpm.
I live in SoCal and the only time I drive 62MPH on the freeway is in a vintage car. Freeways here are usually either 75MPH or 5MPH.

Still, 2400 is a nice cruise RPM if it can be maintained.

What does change with Eco mode?
 
  #24  
Old 06-03-2014 | 01:59 PM
PaleMelanesian's Avatar
Joined: Mar 2013
Posts: 238
From: Longview, TX
5 Year Member
Those were calculated values from honda's published specs for tire size and gear ratios. (here) Recalculating for 70 mph, that gives 2240 rpm, pretty close to Bryanfly's reported 2200. It's nice to have confirmation that the math works out.
 
  #25  
Old 06-03-2014 | 03:02 PM
tmfit's Avatar
Member
Joined: May 2014
Posts: 852
From: St Paris, Ohio
Originally Posted by GeorgeL
I live in SoCal and the only time I drive 62MPH on the freeway is in a vintage car. Freeways here are usually either 75MPH or 5MPH.

Still, 2400 is a nice cruise RPM if it can be maintained.

What does change with Eco mode?
From the drivers manual.
The ECON button turns the ECON mode on
and off. The ECON mode helps you improve
your fuel economy by adjusting the
performance of the engine, transmission,
heating and cooling system*/climate control
system*, and cruise control*.
 
  #26  
Old 06-03-2014 | 05:04 PM
GeorgeL's Avatar
Member
Joined: May 2014
Posts: 1,545
From: SoCal, CA
Originally Posted by tmfit
From the drivers manual.
The ECON button turns the ECON mode on
and off. The ECON mode helps you improve
your fuel economy by adjusting the
performance of the engine, transmission,
heating and cooling system*/climate control
system*, and cruise control*.
Too bad the manual doesn't say *how* they are adjusting those things.
 
  #27  
Old 06-07-2014 | 12:36 PM
Strumbone's Avatar
Member
Joined: May 2014
Posts: 43
From: Rocky Mount N.C.
Originally Posted by GeorgeL
I do agree that most would like to reduce highway RPM by more than a few percent, but a 1.5 liter engine isn't going to cruise the freeway at 2000RPM like a Chevy V8. 3000 would be more realistic.

Maybe, but the Fiesta with 1.0 ecoboost turns 2500 @ 70 mph, and 2900 @ 80 mph with a 5MT. I'm not fond of Ford, but they got it right even on the ST Fiesta with a 6MT...first 4 are close-ratio, and 5th and 6th are overdrive. Wish Honda engineers thought like that.
 
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