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The ultimate headlight upgrade H4 (not LED or HID)

Discussion in '2nd Gen. Tacomas (2005-2015)' started by crashnburn80, Oct 27, 2015.

  1. Nov 30, 2021 at 9:20 AM
    #4141
    Toy_Runner

    Toy_Runner Well-Known Member

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    I don't see how that improves things. The same heat (power) is going to be pulled through the plastic OEM plugs and wiring, you're adding two additional points of resistance in the circuit...

    You're doing a lot of dancing around to try to solve the problem you're creating for yourself. For $115 the headlight services harness would be really hard to beat as a DIY job unless you already had most of the materials on hand.
     
    Too Stroked and Rezkid like this.
  2. Nov 30, 2021 at 9:21 AM
    #4142
    crashnburn80

    crashnburn80 [OP] Vehicle Design Engineer

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    I'd try to find something that is at least 14 AWG, but 12 AWG will be better. The lower the AWG, the lower the resistance, which reduces voltage drop and increases bulb performance. As previously pointed out, those ceramic jumpers are not going to be helpful, as the 100w draw is going to take a significant voltage drop causing output loss and may not be better than a stock bulb.
     
    Pearson likes this.
  3. Nov 30, 2021 at 10:04 AM
    #4143
    Too Stroked

    Too Stroked Well-Known Member

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    With all due respect, all you will do with those is shift where you melt the harness or connectors - maybe not even that.
     
  4. Dec 3, 2021 at 5:21 PM
    #4144
    Pearson

    Pearson Well-Known Member

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    Maybe I'll buy a pair of relays and build my own harness when the ceramic
    connectors come in.


    https://www.amazon.com/ONLINE-LED-STORE-Waterproof-Automotive/dp/B07MR64XK1?ref_=ast_sto_dp&th=1


    Look into the many relay/fuse relay with fuse box configurations on Amazon. You can most likely build a neater or cleaner more versatile power/relay harness yourself. But you really have to enjoy doing that sort of thing as you will be within just a few dollars of the ready-made harness Ryland linked if you use quality components. I considered a build that would combine my horn and crash&burn headlight mod but in the end, I couldn't justify it both time and money-wise.
     
    Last edited: Dec 4, 2021
    eherlihy[QUOTED] likes this.
  5. Dec 3, 2021 at 5:52 PM
    #4145
    daveeasa

    daveeasa FBC Harness Solutions Vendor

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    Snip on random bs I didn’t mean to post.
    Definitely way more to build your own. Way way way more if you attempt to use high quality parts. Fun though. If I could ever get out from under my work backlog, maybe @Shadowhunter can confirm. He’s on a year wait for me to get me ass in gear :p
     
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  6. Dec 3, 2021 at 6:03 PM
    #4146
    Shadowhunter

    Shadowhunter Well-Known Member

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    164 days 18 hours and 3 minutes to be exact :D
     
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  7. Dec 3, 2021 at 6:25 PM
    #4147
    daveeasa

    daveeasa FBC Harness Solutions Vendor

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    F'ing ridiculous isn't it? Every night I think "tonight's the night". And each night I have some on-menu items to make and then it's midnight and I'm too tired to peel back into yours. And it's been so close for like a month now. I'm for sure letting perfect be the enemy of good.
     
    Shadowhunter[QUOTED] likes this.
  8. Dec 3, 2021 at 6:29 PM
    #4148
    crashnburn80

    crashnburn80 [OP] Vehicle Design Engineer

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    How long did you have to wait for your sent in Odyssey headlight review? 9 months maybe? Backlogs can be brutal. On the flip side, saved you a bunch from buying headlights that didn’t fit your needs.
     
    daveeasa[QUOTED] likes this.
  9. Dec 3, 2021 at 6:32 PM
    #4149
    daveeasa

    daveeasa FBC Harness Solutions Vendor

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    You hinted at the results of both headlight reviews pretty darn well. I trust your gut on everything (except weight of steel spare wheels :)
     
  10. Dec 3, 2021 at 6:37 PM
    #4150
    crashnburn80

    crashnburn80 [OP] Vehicle Design Engineer

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    I should have weighed mine before recycling it rather than relying on 3rd party measurements.
     
  11. Dec 18, 2021 at 9:41 PM
    #4151
    Empty_Lord

    Empty_Lord Toyotaholic

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    Well one of the gt200s burnt out earlier this week. (Go figure after I bump charge voltage up for the agm) Time to go high wattage. What is the current bulb of choice for best all round performance. Ive got the headlight solutions harness
     
  12. Dec 18, 2021 at 9:56 PM
    #4152
    crashnburn80

    crashnburn80 [OP] Vehicle Design Engineer

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    Osram 100/90w Superbrights. Looks to be sold out everywhere though, and be wary of the Chinese version sold on eBay. Headlight Services carries them now at a premium, might be worth checking there.
     
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  13. Dec 18, 2021 at 9:58 PM
    #4153
    Empty_Lord

    Empty_Lord Toyotaholic

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    Will do. I wont touch Amazon or eBay. Hell I’m replacing an engine at work because someone bought “Toyota oem” spark plugs off eBay


    Sucks I need bulbs when power bulbs is unable to ship to the us
     
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  14. Dec 18, 2021 at 10:12 PM
    #4154
    crashnburn80

    crashnburn80 [OP] Vehicle Design Engineer

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    Yeah, Bulbs America is out of stock too. I always suggest buying 2 pairs, so that you have an extra set on hand for when the first pair burns out, giving plenty of time to restock.
     
    Canadian Caber likes this.
  15. Dec 18, 2021 at 10:30 PM
    #4155
    Empty_Lord

    Empty_Lord Toyotaholic

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    i had some spare narva stock wattage bulbs.. but man, the things glared really bad. i threw the stock osrams out of one of my non running trucks in for now. the filament on the narva bulbs are pretty misaligned. dont know what happened there.
     
  16. Dec 19, 2021 at 7:25 AM
    #4156
    daveeasa

    daveeasa FBC Harness Solutions Vendor

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    Also posting here. Looks like my DRL’s run low beams rather than high beams. With the relay harness connected, low beam is effectively always on at full power. More work to do aiming them as the reference side (passenger) is too undefined to see well. New setup is better and an OK stopgap for now, I will cross my fingers that we might see a legit LED assembly for first gen Tundra.

    255F6C12-B8A3-463A-A262-2A6550A9C8C3.jpg EECB8C9B-7248-41E8-8003-619CC9B36863.jpg E85BEE29-2F8E-434E-9562-55CA5EF6E909.jpg
     
    crashnburn80[OP] likes this.
  17. Dec 19, 2021 at 10:38 AM
    #4157
    crashnburn80

    crashnburn80 [OP] Vehicle Design Engineer

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    No load goes through the stalk switch, the Tacoma uses a relay. However the power will be inadequate on the stock wiring for a high wattage bulb and it will not be a performance improvement without the harness. You also risk melting the connector, especially on high beam.
     
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  18. Dec 19, 2021 at 10:39 AM
    #4158
    crashnburn80

    crashnburn80 [OP] Vehicle Design Engineer

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    Alternatively you could disable the DRLs entirely.
     
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  19. Dec 19, 2021 at 10:48 AM
    #4159
    daveeasa

    daveeasa FBC Harness Solutions Vendor

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    Yep, temp plan is that, then redirect to switchback vleds I got for the corner lights.

    I thought the DRL would have fed the high beam filament. That was the surprise part.
     
  20. Dec 20, 2021 at 9:42 PM
    #4160
    Pearson

    Pearson Well-Known Member

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    So are we supposed to be afraid of Amazon's Osram store? Real question, not sarcasm.

    https://www.amazon.com/dp/B00NRA91XM


    Looks like Headlight Services has stock if you want to pay the price $17.50. Link below.

    http://www.headlightservices.com/Bulbs.html

    OSRAM Super Bright Premium 9003/H4
    100W/90W 12V Off-Road Automotive Bulb
     

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