04-15-2014, 04:36 AM
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#31 (permalink)
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Burning oil to move air.
Join Date: Aug 2011
Location: Valencia (Europe)
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ausiasmobil - '06 Seat Leon 1.9 TDI Reference 90 day: 40.22 mpg (US) EcoTxec - '99 Skoda Octavia 1.9 TDI 110 cv Laurin & Klement 90 day: 52.85 mpg (US)
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I find it amazing. Congratulations.
what are the gearbox ratios in your Civic an what are the gear ratios in VX transmission. differential ratio included?
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04-15-2014, 08:42 AM
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#32 (permalink)
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Cyborg ECU
Join Date: Mar 2011
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Quote:
Originally Posted by bs25942
... Right now the Kammback looks horrible because it has two different types of plastics but once I graduate I plan to fiberglass it and sand it until I can shave with it. I haven't done it yet because it would require a lot of fiberglass which is expensive.
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Until you get the chance to improve it's looks in a more permanent way, a can of black plasti-dip spray would give it a more uniform look and less reflective glare.
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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.
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04-15-2014, 03:12 PM
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#33 (permalink)
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EcoModding Enthusiast
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Quote:
Originally Posted by bs25942
I am a mechanical engineer. Or will be anyways. Interviewers love hearing about my design process and seeing the drastic increase in FE. I guess they see it as taking the initiative or something haha.
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Makes perfect sense. They want to see that you're a problem solver. A non-problem solver's solution to poor fuel efficiency is to buy a prius.
What's your degree in? I'm a ME in the austin area.
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04-15-2014, 09:18 PM
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#34 (permalink)
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Master EcoModder
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Quote:
Originally Posted by 2003protege
Makes perfect sense. They want to see that you're a problem solver. A non-problem solver's solution to poor fuel efficiency is to buy a prius.
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Why not both? My Prius has a lower grille block and will get more eventually. Not many of the "problem solvers" can beat my mileage. 
Looks like basjoos has some competition. That Wink mirror looks interesting, I might have to try one out. |
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04-15-2014, 10:05 PM
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#35 (permalink)
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Cyborg ECU
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Quote:
Originally Posted by Xist
The VX transmission is supposed to have a taller fifth gear.
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His big gain would come from a swap for the VX final drive. The seventh gen LX should have the 0.711 fifth gear. Whereas the VX, and almost all of the 5th and 6th gen USDM transmissions except the Si models and some EXs had the 0.702 fifth gear. But the VX final drive at 3.250 is a lot taller than the seventh gen LX with the 4.011 final drive.
Bs25942: you fuel up at different stations alot of the time... your numbers, tank to individual tank, would be easier read for gains if you filled at the same pump using the slow fill, stop at first click method. Any interest in that?
James
__________________
See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.
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04-16-2014, 07:20 PM
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#36 (permalink)
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Not Doug
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Quote:
Originally Posted by California98Civic
His big gain would come from a swap for the VX final drive. The seventh gen LX should have the 0.711 fifth gear. Whereas the VX, and almost all of the 5th and 6th gen USDM transmissions except the Si models and some EXs had the 0.702 fifth gear. But the VX final drive at 3.250 is a lot taller than the seventh gen LX with the 4.011 final drive.
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I stand corrected, final drive.
3.25 / 4.011 = .81, so his RPMs would reduce by 19%?
How easily could he swap transmissions with two generations previous? |
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04-16-2014, 08:27 PM
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#37 (permalink)
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Cyborg ECU
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Some say that they bolt right up, and it seems true (pics are available online) but there are two problems: (1) the seventh gen has a cable shifter and the fift and sixth had a shift rod and (2) the seventh gen has an immobilizer for which you would need a workaround. Kinda ups the difficulty significantly. I have not seen anyone claim or show that the gears can be swapped. If the FD could be swapped between them, I guess the other issues with shifters and immobilizer would be moot.
__________________
See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.
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04-18-2014, 07:31 AM
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#38 (permalink)
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OCD Master EcoModder
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Rubber overdrive:
Slightly larger diameter tires.
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Coast long and prosper.
Driving '00 Honda Insight, acquired Feb 2016.
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04-27-2014, 05:11 PM
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#39 (permalink)
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Renaissance Man
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I'm not sure about compatibility but the 1st gen Civic hybrids have a taller final drive, 3.60 IIRC.
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04-27-2014, 05:58 PM
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#40 (permalink)
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Burning oil to move air.
Join Date: Aug 2011
Location: Valencia (Europe)
Posts: 126
ausiasmobil - '06 Seat Leon 1.9 TDI Reference 90 day: 40.22 mpg (US) EcoTxec - '99 Skoda Octavia 1.9 TDI 110 cv Laurin & Klement 90 day: 52.85 mpg (US)
Thanks: 92
Thanked 37 Times in 25 Posts
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maybe is easier to change the inner and output shaft or fifth gear.
I found makes and gearboxes that share components even 20 years old in design
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