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Old 01-03-2017, 11:37 PM   #11 (permalink)
Cyborg ECU
 
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Join Date: Mar 2011
Location: Coastal Southern California
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Black and Green - '98 Honda Civic DX Coupe
Team Honda
90 day: 60.54 mpg (US)

Black and Red - '00 Nashbar Custom built eBike
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Quote:
Originally Posted by Magician View Post
Where do I get one of these vacuum gauges? I've heard of them being used...
They can be had almost anywhere, but I just checked ebay and see a bunch for $20 or more. Dudes here can tutor you on how to use one for monitoring engine load. Here is my favorite model for our dash look: SG-VAC258B: SAAS - 2 5/8 inch Vacuum Gauge (Black face):



Here is a video of a guy installing one on a 1992 Civic:

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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.


Last edited by California98Civic; 01-03-2017 at 11:44 PM..
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Old 01-11-2017, 09:07 PM   #12 (permalink)
92 Civic VX since 2002
 
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Green Bean - '92 Honda Civic VX
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Still waiting on my mpguino to arrive... going to insulate the tubing on my WAI this weekend.
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Old 01-14-2017, 10:38 PM   #13 (permalink)
92 Civic VX since 2002
 
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Green Bean - '92 Honda Civic VX
90 day: 65.2 mpg (US)

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Insulated my engine bay to help with warm ups and to retain heat between stops. Hopefully it helps mpg's. Also insulated my warm air intake the entire path to the head.


IMG 0658

Last edited by Magician; 01-14-2017 at 11:08 PM.. Reason: Adding photo
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Old 01-21-2017, 07:41 PM   #14 (permalink)
92 Civic VX since 2002
 
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Join Date: Dec 2016
Location: Bellevue, NE USA
Posts: 179

Green Bean - '92 Honda Civic VX
90 day: 65.2 mpg (US)

Wife's Prius - '08 Toyota Prius Base 315K miles
Thanks: 8
Thanked 15 Times in 14 Posts
I installed a vacuum gauge, but only have used it one day. I see how it may help a little bit, but I'm already driving fairly efficiently, but I do see a few changes I can make to help improve a little bit.

A very noticeable improvement was made when I insulated my engine bay. I will insulate it a bit more as I think it will help in gains even more since it's winter her in Omaha, NE. I got 46.65 mpg and only had the engine bay insulated for the 2nd half of this tank of gas. I think I may be near 49 mpg thru a full tank using this insulated engine bay. Very noticeable difference. I used some insulation made for wrapping around water heaters in homes that is rated at 250 degrees. I made sure to keep it away from the exhaust manifold. However, I did wrap it around my intake manifold, the throttle body, tubing, housing for the air filter and the rest of the tubing including the tubing that goes up to my exhaust manifold for the warm air intake. This seems to be helping keep that air warm as it runs thru these plastic tubes. I basically insulated the entire path for the intake, so I know that air is entering the engine quite warm. I'll let you know how I do the next few tanks as I keep a log on it.
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Old 01-21-2017, 08:32 PM   #15 (permalink)
Cyborg ECU
 
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Join Date: Mar 2011
Location: Coastal Southern California
Posts: 4,178

Black and Green - '98 Honda Civic DX Coupe
Team Honda
90 day: 60.54 mpg (US)

Black and Red - '00 Nashbar Custom built eBike
90 day: 3671.43 mpg (US)
Thanks: 1,488
Thanked 1,163 Times in 772 Posts
FWIW, here are some of the discussions of vacuum gauge use I have seen here over the years...

Critique my Vac gauge driving

Vacuum gauge and BSFC chart - few questions

Need advice regarding vacuum when accelerating

Question about DWL with vacuum gauge

I hope that helps... keep experimenting!

james
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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 01-26-2017, 12:26 AM   #16 (permalink)
92 Civic VX since 2002
 
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Join Date: Dec 2016
Location: Bellevue, NE USA
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Green Bean - '92 Honda Civic VX
90 day: 65.2 mpg (US)

Wife's Prius - '08 Toyota Prius Base 315K miles
Thanks: 8
Thanked 15 Times in 14 Posts
Got my MPGuino today! I can't wait to hook that up... I haven't looked at the instructions yet, but looks simple. Positive and negative wires and the two wires for communicating with the ECU... Serial bus or whatever they call it. I elected to get the extra set of buttons and glad I did. Lucky me has a degree in electronics, so easy peasy.
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Old 01-26-2017, 09:54 AM   #17 (permalink)
Cyborg ECU
 
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Join Date: Mar 2011
Location: Coastal Southern California
Posts: 4,178

Black and Green - '98 Honda Civic DX Coupe
Team Honda
90 day: 60.54 mpg (US)

Black and Red - '00 Nashbar Custom built eBike
90 day: 3671.43 mpg (US)
Thanks: 1,488
Thanked 1,163 Times in 772 Posts
Where will you mount it?
__________________


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 02-12-2017, 10:33 PM   #18 (permalink)
92 Civic VX since 2002
 
Magician's Avatar
 
Join Date: Dec 2016
Location: Bellevue, NE USA
Posts: 179

Green Bean - '92 Honda Civic VX
90 day: 65.2 mpg (US)

Wife's Prius - '08 Toyota Prius Base 315K miles
Thanks: 8
Thanked 15 Times in 14 Posts
Got my mpguino installed now. Did initial calibration based on wiki suggestions, but will refine over the next month or so.
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Old 02-15-2017, 11:12 PM   #19 (permalink)
92 Civic VX since 2002
 
Magician's Avatar
 
Join Date: Dec 2016
Location: Bellevue, NE USA
Posts: 179

Green Bean - '92 Honda Civic VX
90 day: 65.2 mpg (US)

Wife's Prius - '08 Toyota Prius Base 315K miles
Thanks: 8
Thanked 15 Times in 14 Posts
Ok.. I have the vacuum gauge in and MPGuino hooked up a few days ago. Holy Moly the MPGuino is cool! I'm getting 52-54 mpg in cold weather... My warm air intake is also helping a lot. I will likely get close to 60 mpg this Summer
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Old 02-17-2017, 02:22 AM   #20 (permalink)
Cyborg ECU
 
California98Civic's Avatar
 
Join Date: Mar 2011
Location: Coastal Southern California
Posts: 4,178

Black and Green - '98 Honda Civic DX Coupe
Team Honda
90 day: 60.54 mpg (US)

Black and Red - '00 Nashbar Custom built eBike
90 day: 3671.43 mpg (US)
Thanks: 1,488
Thanked 1,163 Times in 772 Posts

__________________


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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