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Can anyone tell me if they have an AFR meter unit, which one and how (well) it works??
Cheers! Si |
IMHO, for a standard narrow-band lambda you can't do better than a LambdaLink for accuracy, but you can't do worse than a LambdaLink for looks...:rolleyes::)
Depends what you want. I also think that the LambdaLinks from BR Developments are actually calibrated - most aren't, and I don't think they even can be. There's a new one on the books, but don't know when it's going to be available - and it's around 4x more expensive than the rest too! |
cheers nom, so i take it the amount of fuelling can be adjusted slightly using the lambdalink?? Where are they available from??
Cheers! Si |
Ah. No. You're not after an AFR meter unit! You after an AFR adjusty-thing... which I'm not so sure about as a stand-alone unit (only as part of an ECU), but I think that HKS make the usual 'popular' stand-alone unit. AFC? Not sure...
If you just generally want to adjust the amount of fuelling across the board (not sure what you're trying to do here?) then a fuel regulator would do the job. Ah, the HKS AFC (example here middle of the page) and the HKS Super AFR (a bit further down the same page) are 2 ways of going about it. But You'd still want the LambdaLink to get it set up right :) |
whats the difference bitween AFR & AFC than? One adjusts airmass reading and the other is fuel? As i understand both do same job - regulate A/F mixture?
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the lambda link is a monitering unit only, this will allow you to measure your mixture at the different levels of boost, keeping away from a weak mixture and stopping det.
If you want to be ablt to adjust these then you nead a fuel computer like the above mentioned or an apexi AFC or similar. These are very useful and can be used to a degree to 'map' the car. Ideally you would need to combine it with a boost computer like the AVC-r to maximise the effectivness... |
I got boost controller. And now thinkig of getting AFC. Do you think it would be usefull?
But the question was that HKS got AFR and AFC how does it differ? |
Basically, one's just a complicated version of the other.
I don't know much at all about either product, but the cheaper one is pretty similar to simply putting a resistor across the input to the ECU from the MAP - it fools the ECU into thinking the airflow, as read by the MAF, is higher/lower than it actually is, and it does this across the full range, eg reduces the voltage everywhere by 5% (hence the ECU moves the fuelling to a lower load part of the map, reducing fueling). The more expensive one - I think - actually reads multiple inputs itself (rpm, throttle position & MAP) and then uses this to compute new vaules that it passes to the ECU, hence is mappable rather than simple raising/lowering the fuel supply everywhere. As for whether it's needed or not - the only way you'll know that is if you have a LambdaLink, DeltaDash or something that tells you what's going on! Typically - aside from little areas (spool-up if you have a decat & induction kit in particular) - the standard map copes pretty well, this being the advantage of the MAF sensor. Hope something in there helps! :) |
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