Ca18det wideband

Thread in 'Technical Questions' started by Adamround123, Jun 16, 2020.

  1. Adamround123

    Adamround123 Member

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    Hi all, I have a ca18det with the 'stage 2' mods, turbo is a maxpeedingrods t2871, is it worth running a wideband with this set up, and if I so, is there a way of adjusting fuel or what ever needs adjusting if the wideband readings are worrying? And, roughly what should the readings be at various revs to be healthy readings? Cheers
     
  2. r3k1355

    r3k1355 Well-Known Member

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    Yes you want a wideband
    No there's no way of adjusting fuel with your current setup

    Your turbo is way too big for a stage 2 chip, you'll be doing damage if you're giving it lots of WOT.
    You need Nistune or similar if you're gunna continue with that turbo.
     
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  3. Adamround123

    Adamround123 Member

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    Maybe il stick my stock t28 back on for now then

    If I was to get a nistune, it'd be worth getting the injectors and a maf and sticking the 2871 back on all at the same time wouldn't it? Then going for a proper map
     
  4. Adamround123

    Adamround123 Member

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    Il probably get a wideband anyway in the meantime, where's the best place to put it as iv read a couple of different things, some say just put it in place of the old lambda sensor but others say down stream about 20" or so
     
  5. r3k1355

    r3k1355 Well-Known Member

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    Yea for sure, the turbo should be good for 350+ so you'll want injectors and MAF to suit.

    Yea there is an idea position to put it in, most suppliers will give you the instructions.
    FWIW the sensors are pretty cheap these days, you can probs afford to replace one every now and then if they do blow.
     
  6. Adamround123

    Adamround123 Member

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    Would it be better to keep the lamda sensor aswell? Don't mind welding in a new bung for the wideband, rather have both if it'll be a bit better
     
  7. r3k1355

    r3k1355 Well-Known Member

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    If you don't mind welding in a new bung then go for it, correct placement gives the best service life out of the sensor.

    The AEM wideband gauges are decent, but get one from a proper supplier not a fake off eBay.
     
  8. Adamround123

    Adamround123 Member

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    Awesome thanks for that :) found demon tweeks to be cheapest supplier for them so far, wouldn't chance it off ebay

    As for what it should read, does it differ from map to map or am I right in thinking it should be around 12:1 on full boost and around 14:1 at idle? Not massively clued up on the numbers as its a first time for me
     
  9. r3k1355

    r3k1355 Well-Known Member

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    Between 11 and 12 on full boost, no higher.

    I wouldn't be surprised if you're currently running 12-13 or more.
     
  10. Adamround123

    Adamround123 Member

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    Sweet thankyou, I'm gonna get one and put it on now and see what it's reading just out of curiosity and go from there
     

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