nismo2000

I just got a 92 nx2000 with an sr20 det. i was wondering if i could get a tune that deletes the mass air flow censor so i can use a blow off valve?

chriscar

Not with any of the current plug & play ECU solutions available, though you could run a blowthrough MAF setup, and VTA.

C

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1995 Turbo Miata R Package / GT2560R turbo / Megasquirt / Flyin Miata suspension / 15x8 949 6UL

nismo2000

what is VTA?

skcusloa

vent to atmosphere....


I see cars on here everyday that aren't even running blow through that are vta. My car runs like ass any time there is a leak so I don't know how they do it.

nismo2000

does any one know what all i need and where i can get it?

chriscar

I'll bet you that most of them run like ass.

C

chriscar

All you need to do is put the maf between the cold side of the intercooler and the throttle body. Search on blow through for more details.

C

nismo2000

so your saying if i run vta and blow through the car will run like sh*t?

chriscar

No, if you want to VTA, then you need to run blowthrough, otherwise it'll most likely run like sh*t.

C

nismo2000

yaaa now i understand,but now is blowthrough a type of maf or tune or what?
haha srry like i said im a newb.

enohand

blowthrough is blowing the air past the maf, a draw through setup draws/pulls the air pass the MAF,,,,,IIRC

Brian47590

Put the maf (or map) or whatever it is you are using to measure air right in front of the throttle body so that is the last thing the air will encounter before going into intake. You don't want to let unmeasured air into your motor, especially if you are boosting.
A map is a Mass air Pressure sensor. It reads the air pressure inside the intake tube. It's alternate to a maf but you need an ECU that can read it.

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Second car: '92 Honda Accord (2.5" exhaust) (5 mph flip into ditch trying to powerslide in gravel ; Junkyard)
Third car: '98 240sx SE (stock) (still own)
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chriscar

You ideally want the maf in a straight path of air, as far away from bends as possible. On a B chassis car that would be after the cold side intercooler bend, and before the 90* bend into the throttle body.

C

mongoose007

I've read about systems that run off just the tachometer and a throttle position sensor, the idea being that you can guesstimate the amount of air coming in, and add a bit of extra petrol to err on the side of caution...

I know that these aren't very practical for road (change altitude and the ambient pressure changes, and your guesstimate gets shot), and I guess the same would be true for changing gears with a blow off...

Chriscar is that why you discounted it, or are these systems not commonly available over there? Not trying to be smart or anything, just curious...

chriscar

^Sounds like you're talking about a complete aftermarket ecu solution.

C

unijabnx2000

Im running draw thru on mine, but my BOV is recirculated

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ZED_not_zee

your talking about a speed density setup old school efi systems used...

can a stock Nissan draw through maf handle a boosted blow through setup? seems there's alot more to it than all of that I dunno.

You can get a mafia which converts a MAP sensor signal to a maf signlal to run with your stock ecu...

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se-R-T

lol wow i *** came here to learn how to vent... this stuff is retarded i miss my hondas.. nissans seem to be averbuilt like german cars

dfddfd2

MAF to MAP conversion will be available in the new SA version of TunerCode, available hopefully late spring, early summer next year. (List of Features)

Dave

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unijabnx2000

awesome