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Maft and its use

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Old Aug 19, 2002 | 07:15 AM
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scqqby's Avatar
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From: parma
Default Maft and its use

I purchased a Scanmaster and a Maft thinking I may have has some engine detination. After hooking up the Scanmaster the read out was showing 0.0 Retard. So my question is can I use the Maft for anything else or is it now worthless to me now that I know I have no detination going on. If I can use it for other applications, what is it? Thanks <img border="0" alt="[chug]" title="" src="graemlins/gr_chug.gif" />
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Old Aug 19, 2002 | 10:43 AM
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From: Killa Cali
Default Re: Maft and its use

becuz your not getting KR, doesnt mean your not running rich or lean.

you need to find out if your runnin to rich or lean, via A-Tap or something like it.

MAFT will work great if you have the tools to use it with
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Old Aug 19, 2002 | 06:55 PM
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jeff's Avatar
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From: illinois
Default Re: Maft and its use

i have been told that a auto tap is not a good tool to use to measure your a/f ratio. and that a maft is useless and tuning is better. what are your thoughts on this
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Old Aug 19, 2002 | 07:15 PM
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From: Kelowna,BC
Default Re: Maft and its use

You have no knock retard right now..great..and make sure you do some quartermile type runs to redline..you may not get any at just around town type speeds and revs.He has a scanmaster already he don't need autotap.The maft may help you now or be useful later on depending on what mods you get.eg headers make the cars run very rich.
In my car right now with my cam and other mods but no headers on there yet I actually have it set
to base zero ,wot zero.So right now it isn't doing anything for me but when I get those tts on it might be useful and plan on heads and nos and maybe supercharger who knows.You first look at ltrims on your scanmaster..watch them at part throttle acceleration and ignore them at idle or decel.Try to get them close to slightly negative or zero with the base and leave wot alone.And when you set the base it takes awhile.heard from 50 miles up to 200miles for the changes to occur.then when base is set and it may just stay at zero then set wot.This affects o2 right away.
Then watch for knock retard as you try a click leaner.if you get no knock retard still during your quartermile type runs then try another click leaner.Keep watching for knock retard..thats about all you have to do.02 will usually show about .890 or so sometimes a bit more or less.And they can read different depending on what gear you look at them in..I think best is to look at like top of third.Leaning out your car should make it faster but too lean and you hit knock retard.Dynos with widebands are the best thing but not everyone has one near them or can run back and forth every mod.And you may still need to go up or down a click in hot or cold weather.
Hot weather you might start getting knock at a setting that gave you none before so you would richen it up a click.This tuning stuff is not that cut and dry unfortunately.I usually really notice the car get slower though as I go up a couple of clicks and it seems to turn into super dog in hot weather if its too rich.Just my observations.
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