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Location:
Brisbane
Registered:
June 2002
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Location:
Rosanna, Melb
Registered:
June 2002
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Re: Electronics wizards, please read this!!!
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Mon, 15 November 2004 02:56
 
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I had a look at this a while ago, and it seems like an interesting idea, but I think it will never work quite properly.
Firstly you also need to know engine speed, not just manifold pressure (8000rpm and 10psi of vacuum will need more fuel than 1000rpm and 10psi of vacuum). And also, I'd see it as only being a cheap bandaid fix. Given that AFR should be very tightly controlled you you can make good power, good emissions and avoid pinging I think this whole approach is just too dodgy.
You could possibly take RPM and MAP and use a lookup table to give an equivalent airflow meter output. That would be a lot of stuffing around and then why not just go with an aftermarket ECU?
Hen
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Location:
Wollongong
Registered:
May 2002
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Re: Electronics wizards, please read this!!!
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Mon, 15 November 2004 03:23
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A lot of $ required, but HKS had a product called the VPC from memory (Vane Pressure Convertor) which allowed AFM cars to be converted to running a MAP sensor instead. Might be worth looking into if you really need one that works.
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I Supported Toymods
Location:
south Melbourne/KL
Registered:
June 2004
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Re: Electronics wizards, please read this!!!
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Mon, 15 November 2004 03:42
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Im from malaysia and i can honestly tell u that malaysians are always successful in perfecting dodgy work!! dont ask how but it works!!
for example, most common mod in country, remove cat converter!! 
talk about dodgy
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I Supported Toymods
Location:
Sydney
Registered:
December 2002
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Re: Electronics wizards, please read this!!!
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Mon, 15 November 2004 04:31
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Why don't you borrow a known good AFM from someone before you messing with fuel mixtures etc.?
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Electronics wizards, please read this!!!
