MAF or MAP in sr20?
07-10-2002, 03:15 PM
#1
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MAF or MAP in sr20?
Does the sr20 use a MAF and a MAP or just a MAP? Im wondering because im trying to figure out if a bov needs to recirculate or can just be dumped to atmosphere. Does the sr20 come stock with a bov and if so does it recirculate or dump to atmosphere?
08-04-2002, 09:22 AM
#2
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Location: NB, Canada
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If my memory serves me correctly, its a maf. But imo vent it into the atmosphere that way you get a better sound. Now if you think that your car will stall because the the rcih mixture during venting, buy an S-afc from apex'i and that has the option of adjusting for open air BOVs.
08-05-2002, 11:58 AM
#3
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Originally posted by 240drifter
If my memory serves me correctly, its a maf. But imo vent it into the atmosphere that way you get a better sound. Now if you think that your car will stall because the the rcih mixture during venting, buy an S-afc from apex'i and that has the option of adjusting for open air BOVs.
If my memory serves me correctly, its a maf. But imo vent it into the atmosphere that way you get a better sound. Now if you think that your car will stall because the the rcih mixture during venting, buy an S-afc from apex'i and that has the option of adjusting for open air BOVs.
2. Buying an AFC just so you can vent to the atmosphere for a "cool sound" is pretty ridiculous IMO.
3. The stock BOV recirculates air.
08-28-2002, 02:43 PM
#9
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Join Date: Mar 2002
Location: NB, Canada
Posts: 19
Just think about it for a second and you'll be able to figure out the out come.
Turbo sucks air metered by the MAF, boosts it towards the throttle body then the throttle plate closes while all that air is coming towards it. This air bounces back towards the compressor housing but gets blown out into the atmosphere by the BOV. Now this air has been mesured and a signal has been sent to the ecu to shoot the appropriate amount of fuel. Now with more fuel and less air, you get that rich mixture. Hope this helps clear it out for ya.
Turbo sucks air metered by the MAF, boosts it towards the throttle body then the throttle plate closes while all that air is coming towards it. This air bounces back towards the compressor housing but gets blown out into the atmosphere by the BOV. Now this air has been mesured and a signal has been sent to the ecu to shoot the appropriate amount of fuel. Now with more fuel and less air, you get that rich mixture. Hope this helps clear it out for ya.
09-23-2002, 11:29 AM
#11
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Join Date: Sep 2002
Posts: 248
ok...
stock sr's come with a recirc valve located near the stock intercooler..
it is a maf sensor...
most nissan runs mafs..
hondas run maps..
but if u are boosting and u have open venting bov u will be fine..
just dont let it idle right away or it could die..
but isnt the whole point of a turbo the bov
=)
stock sr's come with a recirc valve located near the stock intercooler..
it is a maf sensor...
most nissan runs mafs..
hondas run maps..
but if u are boosting and u have open venting bov u will be fine..
just dont let it idle right away or it could die..
but isnt the whole point of a turbo the bov
=)
10-01-2002, 11:51 AM
#12
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Join Date: Oct 2002
Posts: 5
if your planning on a turbo ka or and sr, and you are really concerned with the bov sound, you could run a "blow through" set up, wich is basically just placing the MAF after the bov. so you would place the MAF after the intercooler in the piping but about a foot away from the throttlebody, and you would put the bov before the MAF wich would allow you to vent to the atmosphere, since then the amount of air getting to the MAF is correct.
10-16-2002, 05:44 AM
#14
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Location: NYC
Posts: 1,115
Originally posted by agressiveracing
but isnt the whole point of a turbo the bov
=)
but isnt the whole point of a turbo the bov
=)
But I think the Z32 MAF works and that would be a nice upgrade.
10-16-2002, 07:01 AM
#15
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Join Date: Oct 2002
Location: IL
Posts: 44
Originally posted by 1200dollrdriftr
if your planning on a turbo ka or and sr, and you are really concerned with the bov sound, you could run a "blow through" set up, wich is basically just placing the MAF after the bov. so you would place the MAF after the intercooler in the piping but about a foot away from the throttlebody, and you would put the bov before the MAF wich would allow you to vent to the atmosphere, since then the amount of air getting to the MAF is correct.
if your planning on a turbo ka or and sr, and you are really concerned with the bov sound, you could run a "blow through" set up, wich is basically just placing the MAF after the bov. so you would place the MAF after the intercooler in the piping but about a foot away from the throttlebody, and you would put the bov before the MAF wich would allow you to vent to the atmosphere, since then the amount of air getting to the MAF is correct.
