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  1. #1
    firedawg
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    Default Brighter Fog Lamp Bulbs

    Does anyone know if there are any aftermarket fog light bulbs available (size 896) that are brighter? I have checked Sylvania's web site and they make the Silver Star's for the headlights, cornering, tail and turn signal lights, but no fog lights.

    If not, maybe someone knows of a modification to make them brighter with normal 896's??

  2. #2
    Eagle85C4
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    Stock are about 35 watt...with some careful searching you can find the 50 watt ones. I did and love the difference...

  3. #3
    Member -=Jeff=-'s Avatar
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    885 and 886 are both 50w. they are direct fit replacements for stock.

    I think the 896 are right angle connectors so you will want the 886 bulbs
    -=Jeff=-
    1990 ZR-1 #1051
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    NCM Lifetime Member #978
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  4. #4
    Brighter Fog Lamp Bulbs rrubel's Avatar
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    I buy all my bulbs from Competition Limited. Here's a link to their "other bulbs " page. They've got 80w 886's... Be careful, though. I've melted stock wiring harnesses in other cars using 30w higher than normal.
    [RICHR]

  5. #5
    Member KOPBET's Avatar
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  6. #6
    Brighter Fog Lamp Bulbs
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    I found this article in the Tech Center from this very forum. Really explains the whole thing in detail.
    http://www.corvetteactioncenter.com/....php?qstId=433
    1986 "Bright Red" COUPE - Aluminum Heads,
    Sport Seats, Bose, Ultra-Flo Exhaust,
    Automatic, Bilsteins - "Mostly Original" otherwise.


  7. #7
    firedawg
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    Great article, I didn't realize I would have to re-run the ground, since mine go off automatically with high beams. Also, I think there may have been an error. Chiltons says the stock lamp size is 896 not 880. I'll have to see what I have. If that is the case, does anyone know the direct 50w replacement for the 896?

  8. #8
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    Firedawg,
    I am running 885 bulbs in mine. Much brighter, did not have to increase fuse size.
    Former Fireman
    Ken Martin
    96 CE LT4 Z51
    Dacula, GA

  9. #9
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    Will higher wattage lamps damage the plastic housing and/or lenses? I know that I melted the foglamps on a 1998 Grand Prix by putting higher wattsge lamps in... Hmmm....

  10. #10
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    So far no problems, ran em several hours yesterday in the rainy weather. I think going from 35 to 50 is not that big of current draw/heat generation increase. I did not even change the fuse to a larger value. And the SilverStar headlights are great.
    Ken Martin
    96 CE LT4 Z51
    Dacula, GA

  11. #11
    Member -=Jeff=-'s Avatar
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    Originally posted by firedawg
    Great article, I didn't realize I would have to re-run the ground, since mine go off automatically with high beams. Also, I think there may have been an error. Chiltons says the stock lamp size is 896 not 880. I'll have to see what I have. If that is the case, does anyone know the direct 50w replacement for the 896?
    Firedawg, you have the 896 bulb. The Article written by Lars is mostly for the 1989-older C4s. The 1990-1996 have a different wiring scheme for the Driving Lights. the older runs the Dirving light through the High beam.

    The Driving lights on the 90-96 are controlled by a relay (better)

    so you don't have to cut and remove the ground.
    -=Jeff=-
    1990 ZR-1 #1051
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    NCM Lifetime Member #978
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  12. #12
    Member -=Jeff=-'s Avatar
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    Default Wiring Diagrams

    This should clear up some confusion

    this is the 89 fog lamp wiring
    http://jeff.vettextc.net/wiring/1989-fog.jpg

    this is the 91 fog lamp wiring.
    http://jeff.vettextc.net/wiring/1991-fog.jpg

    I don't have a 90 manual but I am 99% sure it is like the 91

  13. #13
    Member Spinman's Avatar
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    Just checked the fog lamp wiring in my '90 shop manual (page 8A-100-1) The diagram appears to be identical to the one posted by Jeff for the 1991...

    From what I can read - the fog lamps have a relay in the circuit - when the high beams are on, the relay opens the circuit and the fog lamps are off. In the 90 - the standard bulbs are 880 (35w) and the upgrade would be 885 (50w).

    [I believe the '91 and later use the 896 with the right angle connector in the newer bumper - the '90 and earlier use the 880 with the straight connector in the older bumper]

    The manual shows a 15amp taillight fuse in the circuit, so as stated - it probably would work alright with the existing hardware.

    As for the heat dispersion and melting of the lens or housing - don't know - hopefully not a problem from what others have said.

    I had been putting off upgrading because I didn't want to cut the ground wires as described in the tech article. Now it looks like theres no reason not to upgrade...

    FWIW

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