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Old 02-27-2014, 07:45 AM   #101 (permalink)
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Black and Green - '98 Honda Civic DX Coupe
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90 day: 64.33 mpg (US)

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The brake booster works perfectly. And there is now a part of my daily route where i no longer need to bump start just for full braking ability. In general, it feels safer. In my daily driving, I never encounter stiff breaks anymore.

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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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Old 03-02-2014, 11:05 AM   #102 (permalink)
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I like the recent brake/vac boost.

Seperate question about previous mod......What material did you use on the side skirts and how did you get them so flush to the vehicle contour? thanks
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Old 03-02-2014, 12:30 PM   #103 (permalink)
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Black and Green - '98 Honda Civic DX Coupe
Team Honda
90 day: 64.33 mpg (US)

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Quote:
Originally Posted by TexasCotton View Post
What material did you use on the side skirts and how did you get them so flush to the vehicle contour? thanks
The skirts are made from black coroplast, the build write up is back on like page 8, but I know you have already seen that. To get it more flush to the body contour I needed to bring the lower leading and trailing corners in closer to the body. Wanting not to commit to anything through drilling and such and not wanting to spend any more money on hardware either, I took some aluminum mint boxes and cut strips, doubled them up for strength and bent them into a kind of "S" ... they are hooked onto the inside lip of the body in the wheel wells and then wedged into the anodized aluminum support on the back of the coroplast. Tension from the skirt itself, wanting to push out, holds them in place firmly, for extra safety, duct tape covers all the points of contact. It's sloppy, "free," and temporary--until I'm sometime ready for the next version.

I hope that helps. Wish I had taken pictures.
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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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Old 03-08-2014, 11:24 AM   #104 (permalink)
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How does your brake booster mod work? What is it doing to your braking system to allow you more braking before bump starting ?
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Old 03-08-2014, 03:00 PM   #105 (permalink)
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Black and Green - '98 Honda Civic DX Coupe
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90 day: 64.33 mpg (US)

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Quote:
Originally Posted by jedi_sol View Post
How does your brake booster mod work? What is it doing to your braking system to allow you more braking before bump starting ?
The OEM system already stores vacuum pressure produced by the engine in vacuum lines and a small "canister." This mod adds more volume to the storage by putting an extra canister in-line with the existing system. The larger volume means "more" vacuum storage and hence more brake assist, and therefore, I needn't restart the engine for a second on my way down some of the mile and a half long dramatic hills around here. I like it a lot.
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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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Old 03-08-2014, 03:04 PM   #106 (permalink)
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Interesting. I'll look into this for my car.

This should be added to the 65+ mods list!
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Old 03-08-2014, 08:06 PM   #107 (permalink)
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Black and Green - '98 Honda Civic DX Coupe
Team Honda
90 day: 64.33 mpg (US)

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Thanks: 1,859
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Quote:
Originally Posted by jedi_sol View Post
Interesting. I'll look into this for my car.

This should be added to the 65+ mods list!
Maybe. I think of it more asa safetymod than fuel saving. after all, only the few of us that do this much eoc will benefit in terms of fuel, and even then, an instant of engine on during a long coast is not that much fuel.
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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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Old 03-09-2014, 09:33 PM   #108 (permalink)
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Black and Green - '98 Honda Civic DX Coupe
Team Honda
90 day: 64.33 mpg (US)

Black and Red - '00 Nashbar Custom built eBike
90 day: 3671.43 mpg (US)
Thanks: 1,859
Thanked 1,555 Times in 1,058 Posts
TEST: gearing, rpm, mpg

My stock 1998 DX tranmission had almost the same rpm/speed in 5th gear as my current 1993 CX transmission has in 4th gear. So I did a quick and dirty test just now, out of curiosity. In the below list, 4th gear is what my old DX transmission would have produced in fifth gear, while the displayed 5th gear number are for the super-tall 1993 CX (also VX) gearing that I now have. I welcome any ideas for a more rigorous test. I do not have cruise control on this car.

4th: 34.9 %Engine load, 2031rpm, approx 50mph, 59.5mpg
5th: 37.6 %Engine load, 1639rpm, approx 50mph, 66.8mpg

4th: 37.6 %Ld, 1891rpm, approx 45mph, 51.0mpg
5th: 47.5 %Ld, 1568rpm, approx 45mph, 53.3mpg

4th: 42.7 Ld, 2090rpm, 50mph, 48.0mpg
5th: 45.5 Ld, 1710rpm, 50mph, 56.3mpg

3: 37.3 ld, 2579rpm, 50mph, 45.7mpg
4: 35.7 ld, 2080rpm, 50mph, 58.3mpg
5: 34.1 ld, 1708rpm, 50mph, 75.1mpg

3: 36.5 ld, 2547rpm, 50mph, 45.9mpg
4: 40.5 ld, 2074rpm, 50mph, 48.9mpg
5: 47.5 ld, 1723rpm, 50mph, 55.8mpg
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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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Old 03-10-2014, 04:25 AM   #109 (permalink)
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You could have split the two and used a 96-00 CX/DX HB/HX transmission with 3.722 FD instead of the 96-00 Coupe/Sedan 4.058 FD.
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Old 03-10-2014, 07:53 AM   #110 (permalink)
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Join Date: Mar 2011
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Black and Green - '98 Honda Civic DX Coupe
Team Honda
90 day: 64.33 mpg (US)

Black and Red - '00 Nashbar Custom built eBike
90 day: 3671.43 mpg (US)
Thanks: 1,859
Thanked 1,555 Times in 1,058 Posts
Quote:
Originally Posted by Mista Bone View Post
You could have split the two and used a 96-00 CX/DX HB/HX transmission with 3.722 FD instead of the 96-00 Coupe/Sedan 4.058 FD.
I considered that, but wanted the taller option of the 3.250 final drive. What I would love to do is swap the FD I have from a 92 VX into my unused 98 DX, as part of a rebuild. Would that VX fd work in the DX?

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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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