Guaging Interest On New MAF Setup

Information on the naturally-aspirated KA24E and KA24DE engines.
DSMs_Suck
Posts: 213
Joined: Thu Mar 04, 2004 7:55 am
Car: Money, *****es, and 40s

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Ok well first off the laptop control wont cost anymore guys, I'll have the serial connection either way. I will shoot to get the knobs and the serial port both. Most likely with a switch that will indicate which adjustments are being used.

As far as the computer program goes, It will be a 32 bit application so you will probably need to run it on 95b and newer... But machines can be found that will run 98 (and the program) just fine for like 100-200 on ebay.... Otherwise like people have said just borrow a friends laptop when you needed to adjust the fuel map. The translator setup won't need the laptop to run, just to adjust.

BTW, I just thought of another parameter that I can bring in for datalogging.... The o2 volts. This way you can get a damn good idea of how to tune it.So it could display (probably log):- Air Flow Reading (AFL on SAFCs)- RPM- Correction- O2 Volts (I will probably add a table to extrapolate the volts into an AFR value - i.e. 12.5:1)

Not a big deal but the serial communication does add a bit of complexity to the system, so it may take a little longer to release, still shooting to get some results to you in a week or 2 tho. :)

Murray


spitz7985
Posts: 503
Joined: Sun Nov 10, 2002 11:01 am
Car: HICAS S13

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sweet. sounds awesome. i won't be ready to buy for a couple weeks, though.

also, the o2 volt datalogger should be wideband, not narrowband.

DSMs_Suck
Posts: 213
Joined: Thu Mar 04, 2004 7:55 am
Car: Money, *****es, and 40s

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Not to sure on what you meant making the logger a wideband.. but:

It can log voltage reguardless of whether it is a narrowband (0-1v) or a wideband (0-5v). However I can't just turn the stock narrowband sensor into a wideband unit.

However if you did purchase any of the wideband units out there it will be able to log the signal.

Murray

spitz7985
Posts: 503
Joined: Sun Nov 10, 2002 11:01 am
Car: HICAS S13

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Yeah, I meant able to read an aftermarket wideband 0-5 volt o2 sensor. I heard that a certain stock VW o2 sensor reads 0-5 volts then at the ECU its converted to 0-1. These sensors are only like $30 so if your product could read these, it would be a cheap wideband system.

DSMs_Suck
Posts: 213
Joined: Thu Mar 04, 2004 7:55 am
Car: Money, *****es, and 40s

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The translator setup will be able to read a 0-5v signal and I can setup something so that there is a voltage vs. AFR table that can be programmed to turn the voltage into the proper AFR.

With that said... a wideband setup is not as easy as just getting a wideband o2 and then reading that signal. The wideband output actually goes to a wideband controller (such as techedge, aem, innovative, etc) and the controller then converts the signal to the proper output. In general the controller is what you pay big bucks for, not the o2 sensor itself.

Murray

spitz7985
Posts: 503
Joined: Sun Nov 10, 2002 11:01 am
Car: HICAS S13

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so, the wideband controller would need to be purchased also?

DSMs_Suck
Posts: 213
Joined: Thu Mar 04, 2004 7:55 am
Car: Money, *****es, and 40s

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Again, my translator will be able to LOG the signal, if you want to use a wideband then you will need to buy a wideband system..

However, my unit will log the signal irregardless of the type of signal (narrowband or wideband)

Murray


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