Mechanical VS Electrical Gauges
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This is a discussion on Mechanical VS Electrical Gauges within the Interior Mods forums, part of the Tech & Modifying & General Repairs category; I'm looking at getting a boost gauge for my new STi, and found the right ones to match the car ...

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    Mechanical VS Electrical Gauges

    I'm looking at getting a boost gauge for my new STi, and found the right ones to match the car (http://www.j-spectuning.com/omori_rr.htm) but what is the difference between mechanical and electrical boost gauges?

    Also, I'd like to mount the gauge where the Subaru boost gauge would be located, does anyone make a piece to mount it there?

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    tan
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    for boost gauges....a mechanical one uses boost/vacuum to operate the gauge.

    An electrical one uses a MAP sensor to send a signal to the gauge. An electrical can respond faster, since there would be less tubing to respond with. A nice chunk of the cost is the MAP sensor

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    do they look any different usually? i mean, electrical gauges still use analog dials right (i.e. they're not digital), b/c the difference in electrical & mechanical gauges is in how they measure not in how they display info (am i right?)
    Last edited by HardCore; 10-14-2003 at 01:15 PM.

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    tan
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    Still analog dials

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    Anyone know if j-spec tuning has the omori 45mm boost gauge in stock with the 02-03 colors? They only have the 04 color listed but the pics are of the 02-03 lookalikes.


    Doh, now they just removed the pics.... oh well. I guess they don't have them then.

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    Registered User 04blkWRX's Avatar
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    Originally posted by tan
    for boost gauges....a mechanical one uses boost/vacuum to operate the gauge.

    An electrical one uses a MAP sensor to send a signal to the gauge. An electrical can respond faster, since there would be less tubing to respond with. A nice chunk of the cost is the MAP sensor
    Yeah huge difference in price but I got so fed up with kinking the nylon pressure line with my mechanical gauge I decided to bite the bullet and go with an electrical. It's worth it.

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    Get the electric.. I had a mechanical in my audi and it made a annoying vibration sound.

    I'm going to use electricaly guages only..
    They still use analog dials, but you can get some guages with digital numbers, but I think it looks better with analog dails
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    Originally posted by Roffa
    Get the electric.. I had a mechanical in my audi and it made a annoying vibration sound.

    I'm going to use electricaly guages only..
    They still use analog dials, but you can get some guages with digital numbers, but I think it looks better with analog dails
    Such as integral systems with a central digital display like the SECS system. Offered as a in console arrangement or clock pot replacement(has it's own clock function as well).

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    Originally posted by schischwein
    Such as integral systems with a central digital display like the SECS system. Offered as a in console arrangement or clock pot replacement(has it's own clock function as well).
    Well I'm getting defi bf, or omori analog \electrical guages.
    I don't want digital numbers unless I get so many sensors I don't have room for any more guages..

    If you don't want analog dails you can get a digital number displays like the Hks camp, or the Defi link display
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    tan
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    If you had a lot of money lying around....

    http://www.impconcepts.com/audis4boostgauge.htm

    I don't know if there's enough space in the tach for the leds though

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    Originally posted by tan
    If you had a lot of money lying around....

    http://www.impconcepts.com/audis4boostgauge.htm

    I don't know if there's enough space in the tach for the leds though
    Hmm this mod doesnt cost much. It's You just need a boost sensor and some radioshack stuff...

    But I don't think this looks as good as the guages..
    I was thinking of doing this mod when I had my Audi, but choose to get some guages for it instead.
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    Registered User Sihota's Avatar
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    Originally posted by tan
    for boost gauges....a mechanical one uses boost/vacuum to operate the gauge.

    An electrical one uses a MAP sensor to send a signal to the gauge. An electrical can respond faster, since there would be less tubing to respond with. A nice chunk of the cost is the MAP sensor
    So does an electrical guage need a control center, or any other extra hardware?
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    Originally posted by Sihota
    So does an electrical guage need a control center, or any other extra hardware?
    Electronical guages needs a sensor, some wire and the guage itself. These things normally comes with the guage.

    Defi however guages needs a control center, but the nice thing with those guages it that you only need to pull one wire from the "control center" to the guage cluster. i think this is nice because it minimize the number of errors, firehazards, looks cleaner\nicer (whenever you pull out the dash)
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    Registered User droogie's Avatar
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    so as far as accuracy, there isn't a difference?
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    I think the electronic one would respond faster to rapid changes as well as be more accurate overall. I know my Greddy boost gauge definatly moves faster than the factory one when I tap the gas and get on and off the throttle.
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