MAF swap and now it feels slower - MustangForums.com


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Old 02-20-2006, 03:42 PM   #1  
Sprayin86
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Default MAF swap and now it feels slower

ok just finished the mass air swap on my 86 gt over the weekend. and the car feels slower. it seems to me that by looking at them, the MAF intake tube is a bit smaller in diameter than the speed density when putting them side by side. it could just be in my head but i know the MAF one was alot harder to fit around the throttle body than its counterpart. anyone ever ran into this one before?
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Old 02-20-2006, 03:49 PM   #2  
grabbem88
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Default RE: MAF swap and now it feels slower

what computer you using??i did 4 swaps..so lets see what you got...
s/d has a diff.programming...stock vs stock my s/d did seem faster..
did you hook up the vehical speed sensor?....mass air cars/cruise require it.sometimes you can get away with it..
whats your tps set at?....also turn the meter towards the fender...
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Old 02-20-2006, 04:14 PM   #3  
gspfunk
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Default RE: MAF swap and now it feels slower

what size MAF do you have?
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Old 02-20-2006, 04:23 PM   #4  
Sprayin86
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Default RE: MAF swap and now it feels slower

the setup is out of a 90 gt 5 speed. i guess the meter is stock. i didn't fool w/ the speed sensor. might be the problem but i was hoping i could get away with it. it isn't throwing any codes other than what it was throwing before the swap. 33 egr valve, and i believe 41 and 91 system rich. don't know what the tps is at. it was at .99 before but i had to remove it to unhook my nitrous line. i will check it later on this week some time.
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Old 02-20-2006, 04:25 PM   #5  
grabbem88
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Default RE: MAF swap and now it feels slower

tube could be dirty???do what i said..and the richness my clear up some.
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Old 02-20-2006, 04:27 PM   #6  
gspfunk
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Default RE: MAF swap and now it feels slower

If your MAF is stock and you have a little extra cash, find a pro-m 75mm or something similar. Used will work too, as long as it's in good shape. the larger MAF should help your power some.
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Old 02-20-2006, 05:11 PM   #7  
Sprayin86
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Default RE: MAF swap and now it feels slower

ok this may sound stupid but what do you mean by turning the meter towards the fender, and what is the significance of doing this?
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Old 02-20-2006, 05:15 PM   #8  
grabbem88
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Default RE: MAF swap and now it feels slower

twisting i guess you want to call it..will put the tube in better air..kinda like leaning it out some...
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ORIGINAL: Sprayin86

ok this may sound stupid but what do you mean by turning the meter towards the fender, and what is the significance of doing this?
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Old 02-20-2006, 05:24 PM   #9  
Sprayin86
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Default RE: MAF swap and now it feels slower

yeah once i thought about it, thats where i figured you were going with it. Thanks for all the input.
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Old 02-20-2006, 05:29 PM   #10  
grabbem88
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Default RE: MAF swap and now it feels slower

anytime...anytime
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ORIGINAL: Sprayin86

yeah once i thought about it, thats where i figured you were going with it. Thanks for all the input.
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