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Underbody braces, turbos and more!

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PostPosted: Sun Jun 29, 2008 8:35 pm 
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Location: Ashtabula, Ohio
I used to have one of those really nostalgic vacuum gauges that read "Power" and "Economy", but the needle broke off and I had a hell of a time locating a replacement. The new gauge is a "Vacuum/Boost" gauge made by Sunpro, but the only scale I can use on a non-turbo vehicle will be the vacuum side of the gauge.

The new gauge required me to do a complete installation, so I decided to share it with you. The first thing I had to do is find a proper mounting location and on my car, the spot on the column was perfect for a 2" gauge. I simply used self tapping screws and secured the mount to the top half of the column cover...............

Image

I then placed the gauge in the proper location and ran the vacuum tubing and electrical wires for the gauge illumination behind the cluster cover so nothing is exposed.

Image

I simply removed the heater control cover plate and unplugged the bulb and spliced the illumination wires right into the harness so the gauge lights up when the cluster lights up.............

Image

The mounting and illumination is now complete. The last thing to do is to run the vacuum hose provided with the gauge through the firewall to find a vacuum source. I ran a long screwdriver through the main wiring harness boot and fed the tubing through the gap made by the screwdriver.

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I then adapted the connector to a vacuum source to monitor my fuel economy.

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Here it is all installed...............

Image

NOTE The vacuum line was spliced into the large vacuum line at the booster originally shown in the picture, however, this was causing poor readings. I later spliced into a vacuum source very close to the engine for instant readings of the engine vacuum. After driving with the gauge, it actually tells you when to shift if you know how to monitor it and will also make it easier to stay easy on the throttle.

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  • EcoMudder - Geo Metro Mudder
  • Project page
  • Build Video
  • 1991 4 Door Truck Conversion
  • Modified Suzuki 1.0L Engine
  • High Stall 3200 RPM Converter
  • Auto Trans with Welded Differential
  • Custom Exhaust and Intake System
  • 6" Suspension Lift & Weight Reduction
  • 27" Kenda Executioner 6 Ply ATV tires


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PostPosted: Sun Jun 29, 2008 10:15 pm 
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Location: Palm Springs: Too hot from June to Oct.!
Very nice.

A vacuum gauge is a welcome addition to any motor vehicle.

Is it in the way of the speedometer? :huh:

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DIY Broken Bolt Removal: viewtopic.php?f=22&t=41042
DIY Clutch Adjustment: viewtopic.php?f=9&t=48281
DIY Wheel Bearings: viewtopic.php?f=2&t=29003
DIY Shocks: viewtopic.php?f=10&t=45483
DIY Wheel Align: viewtopic.php?f=2&t=42479
Once you get the cars dialed-in (compression, leaks, bearings, alignment, brakes) swap in new rubber and glass, you've got something which should last for years!


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PostPosted: Sun Jun 29, 2008 10:32 pm 
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Location: Ashtabula, Ohio
Actually, when sitting in the normal driving position, nothing on the cluster is blocked except the odometer.

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Image
  • EcoMudder - Geo Metro Mudder
  • Project page
  • Build Video
  • 1991 4 Door Truck Conversion
  • Modified Suzuki 1.0L Engine
  • High Stall 3200 RPM Converter
  • Auto Trans with Welded Differential
  • Custom Exhaust and Intake System
  • 6" Suspension Lift & Weight Reduction
  • 27" Kenda Executioner 6 Ply ATV tires


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PostPosted: Sun Jun 29, 2008 10:37 pm 
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Joined: Mon Jun 23, 2008 6:35 pm
Posts: 139
Location: Findlay,OH
I have never had a vacuum gauge on a car before what do you want it to show. Manifold vacuum or Port vacuum? A high or low reading? I am thinking of adding one have seen it come up on forums alot. And I checked out your build on ecomodders Mullet. Nice Job.

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1991 Xfi "the most fun to drive"
2007 Civic Si
1983 F150 4x4


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PostPosted: Sun Jun 29, 2008 10:57 pm 
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Location: Ashtabula, Ohio
The way mine operates is kinda weird, but I have it figured out and use it to save gas.

Starting the car, the gauge reads about 15 at idle and as you accelerate the vacuum drops and the gauge can read almost zero at hard acceleration. During upshifting, you can actually watch the needle slightly raise in vacuum right at the ideal shift point and it's pretty closely timed with the dashboard shift light. When letting off the gas, the gauge will read around 20-25 depending on speed.

Once you are up to normal driving speed, it's up to you to find the sweet spot. On my particular setup, I get the best fuel economy at around 55 MPH and the vacuum gauge reading around 10 on the dial. I try to keep it there steady. The gauge is sensitive and will change with throttle position/load. I use this to keep a steady throttle position to save fuel.

_________________
Image
  • EcoMudder - Geo Metro Mudder
  • Project page
  • Build Video
  • 1991 4 Door Truck Conversion
  • Modified Suzuki 1.0L Engine
  • High Stall 3200 RPM Converter
  • Auto Trans with Welded Differential
  • Custom Exhaust and Intake System
  • 6" Suspension Lift & Weight Reduction
  • 27" Kenda Executioner 6 Ply ATV tires


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PostPosted: Sun Aug 17, 2008 8:32 pm 
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Location: Findlay,OH
Hey Johnny,
I figured I would throw a video on here of how to drive with it.
http://www.youtube.com/watch?v=9SM5Ory6QDE

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1991 Xfi "the most fun to drive"
2007 Civic Si
1983 F150 4x4


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PostPosted: Sun Aug 17, 2008 8:59 pm 
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Joined: Fri Nov 09, 2007 5:46 pm
Posts: 1099
Location: Abbotsford, BC
bbjsw10 wrote:
Hey Johnny,
I figured I would throw a video on here of how to drive with it.
http://www.youtube.com/watch?v=9SM5Ory6QDE


this is a very poor video. i can hardly see what's going on , camera shakes and is low quality and blurry.

the vacuum guage how-to was good except the images are very small, blurry and it's hard to see what you acutally did in some areas.

_________________
1995 Firefly 1.3 SOHC 8VALVE MANUAL
2000 Firefly 1.3 SOHC 16VALVE AUTO. Goals: full restoration, achieve stock MPG and HP or higher, finished look should be 'stealthy' and unassuming. Engine will need to be rebuilt later on to restore compression levels.


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PostPosted: Sun Aug 17, 2008 9:14 pm 
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Location: Palm Springs: Too hot from June to Oct.!
bbjsw10 wrote:
Hey Johnny,
I figured I would throw a video on here of how to drive with it.
http://www.youtube.com/watch?v=9SM5Ory6QDE


That's where I was thinking of putting my 'dream' gauge...where you put it in the video :wink: :wink: :wink:
I would like a combination tach/vacuum gauge that size with both needles on the same face, and some L.E.D.'s at the edge. The L.E.D.'s would have the green/yellow/red progression for both vacuum and rpm's.

Then, I could just tell someone: "Keep it in the green!"

It would be nice to be able to vary not only the intensity of the dial illumination, but also the L.E.D. lights.
At night, it'd be a cinch to see.

And for the racers :?: "Keep it in the RED" :D :D :D

_________________
DIY Broken Bolt Removal: viewtopic.php?f=22&t=41042
DIY Clutch Adjustment: viewtopic.php?f=9&t=48281
DIY Wheel Bearings: viewtopic.php?f=2&t=29003
DIY Shocks: viewtopic.php?f=10&t=45483
DIY Wheel Align: viewtopic.php?f=2&t=42479
Once you get the cars dialed-in (compression, leaks, bearings, alignment, brakes) swap in new rubber and glass, you've got something which should last for years!


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PostPosted: Sun Aug 17, 2008 9:18 pm 
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Joined: Mon Jun 23, 2008 6:35 pm
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Location: Findlay,OH
1995Firefly4dr wrote:
bbjsw10 wrote:
Hey Johnny,
I figured I would throw a video on here of how to drive with it.
http://www.youtube.com/watch?v=9SM5Ory6QDE


this is a very poor video.

So sorry next time I will hire a filming crew for you. It is good enough to show basic concept.

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1991 Xfi "the most fun to drive"
2007 Civic Si
1983 F150 4x4


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PostPosted: Sun Aug 17, 2008 9:43 pm 
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Joined: Tue Apr 08, 2008 9:08 pm
Posts: 1254
Location: Ashtabula, Ohio
I always resize my images to 500 pixels wide to make the images load better for those of us on a slow connection and also so it does not stretch the page out so the text has to side scroll to see. I could load up all my guides and How-to threads with 1280 resolution pics, but I prefer not to.

_________________
Image
  • EcoMudder - Geo Metro Mudder
  • Project page
  • Build Video
  • 1991 4 Door Truck Conversion
  • Modified Suzuki 1.0L Engine
  • High Stall 3200 RPM Converter
  • Auto Trans with Welded Differential
  • Custom Exhaust and Intake System
  • 6" Suspension Lift & Weight Reduction
  • 27" Kenda Executioner 6 Ply ATV tires


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PostPosted: Mon Aug 18, 2008 8:46 pm 
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Joined: Fri Nov 09, 2007 5:46 pm
Posts: 1099
Location: Abbotsford, BC
JohnnyMullet wrote:
I always resize my images to 500 pixels wide to make the images load better for those of us on a slow connection and also so it does not stretch the page out so the text has to side scroll to see. I could load up all my guides and How-to threads with 1280 resolution pics, but I prefer not to.


in that case, it would be great to have your images hyperlinked to a higher-resolution version located in your album.
this is the code

Code:
[url=url][img]image[/img][/url]


Image

_________________
1995 Firefly 1.3 SOHC 8VALVE MANUAL
2000 Firefly 1.3 SOHC 16VALVE AUTO. Goals: full restoration, achieve stock MPG and HP or higher, finished look should be 'stealthy' and unassuming. Engine will need to be rebuilt later on to restore compression levels.


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