AFM / MAF conversion, MK1

dblotii · 06-04-2007, 11:56 AM

I have a fairly hot 4age (small-port, mild cams, headers, CAI) that I am converting from AFM to MAF, using the Split-Second PSC1-009 piggy-back.

I started with a Ford V6 Hot-wire meter, because I had one. It turns out that it is too big. It never goes above 3.5 volts and I have to set all of my tuning Map to full rich just to get it to run. I need a smaller MAF. Anyon know of a good, readily available, Hot-wire MAF of the right size. It needs to be a 0-5 volts (not frequency) output.

Dave

Weasy2k · 06-13-2007, 11:56 AM

Supra Maf they are a good size and i goto about 80% of capacity with my 3.4L supercharged v6

dblotii · 06-13-2007, 12:38 PM

That will also be way too big for my N/A 1.6L

Dave

Weasy2k · 06-13-2007, 12:50 PM

Ok then try a stock 3.4L tacoma engine one...when n/a i hit around 70-80% max capacity s/c would see it max out....

That one isnt big at all. I could see it working well for you.

Either that or the 1mz-fe Camry motor.

jdchmiel · 06-21-2007, 04:31 PM

fine one that you can put in any size tube like the 1zz/2zz swappers use.. instead of goign to a bigger tube, go to a smaller diameter tube?

Luni · 06-21-2007, 09:41 PM

Changing diameter of tube of a hotwire maf changes the readings (its how you up injector sizes, you increase piping diameter and its effective readings go down to compensate for the larger injectors.

jdchmiel · 06-22-2007, 07:27 AM

Quote:

Originally Posted by Luni

Changing diameter of tube of a hotwire maf changes the readings (its how you up injector sizes, you increase piping diameter and its effective readings go down to compensate for the larger injectors.

exactly, so he can get his resolutiuon up by haviung it give a 0-5 in a smaller tube than what he has now that peaks at 3.5

Luni · 06-22-2007, 03:57 PM

I wasnt guessing, or second guessing, i was explaining to anyone who would want to come in and read this thread and not quite understand the reasoning behind it.

jdchmiel · 06-22-2007, 05:17 PM

dammit argue with me, i hate arguing with soemone who is saying the same thing im saying !

Weasy2k · 06-24-2007, 02:22 AM

^ dude your so wrong

06-04-2007, 11:56 AM	#1 (permalink)
dblotii No Skills Join Date: Jun 2007 Posts: 5 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	AFM / MAF conversion, MK1 I have a fairly hot 4age (small-port, mild cams, headers, CAI) that I am converting from AFM to MAF, using the Split-Second PSC1-009 piggy-back. I started with a Ford V6 Hot-wire meter, because I had one. It turns out that it is too big. It never goes above 3.5 volts and I have to set all of my tuning Map to full rich just to get it to run. I need a smaller MAF. Anyon know of a good, readily available, Hot-wire MAF of the right size. It needs to be a 0-5 volts (not frequency) output. Dave

06-13-2007, 11:56 AM	#2 (permalink)
Weasy2k 3.4L 10K RPM In the works Join Date: Mar 2005 Location: Vancouver, BC Posts: 8,895 Thanks: 34 Thanked 80 Times in 66 Posts iTrader Rating: (9/100% )	Supra Maf they are a good size and i goto about 80% of capacity with my 3.4L supercharged v6 __________________ -Johnny @ Sea2Sky Tuning - www.sea2skytuning.com http://www.mr2.com/forums/sea2sky-tu...-out-sale.html

06-13-2007, 12:38 PM	#3 (permalink)
dblotii No Skills Join Date: Jun 2007 Posts: 5 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	MAF size That will also be way too big for my N/A 1.6L Dave

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06-13-2007, 12:50 PM	#4 (permalink)
Weasy2k 3.4L 10K RPM In the works Join Date: Mar 2005 Location: Vancouver, BC Posts: 8,895 Thanks: 34 Thanked 80 Times in 66 Posts iTrader Rating: (9/100% )	Ok then try a stock 3.4L tacoma engine one...when n/a i hit around 70-80% max capacity s/c would see it max out.... That one isnt big at all. I could see it working well for you. Either that or the 1mz-fe Camry motor.

06-21-2007, 04:31 PM	#5 (permalink)
jdchmiel No Skills Join Date: Sep 2006 Location: raleigh nc Posts: 280 Thanks: 4 Thanked 5 Times in 5 Posts iTrader Rating: (1/100% )	fine one that you can put in any size tube like the 1zz/2zz swappers use.. instead of goign to a bigger tube, go to a smaller diameter tube?

06-21-2007, 09:41 PM	#6 (permalink)
Luni ST185 Powered SW20 Join Date: Oct 2005 Location: Salt Lake City Utah Posts: 2,959 Thanks: 9 Thanked 106 Times in 92 Posts My Google Map iTrader Rating: (8/100% )	Changing diameter of tube of a hotwire maf changes the readings (its how you up injector sizes, you increase piping diameter and its effective readings go down to compensate for the larger injectors.

06-22-2007, 03:57 PM	#8 (permalink)
Luni ST185 Powered SW20 Join Date: Oct 2005 Location: Salt Lake City Utah Posts: 2,959 Thanks: 9 Thanked 106 Times in 92 Posts My Google Map iTrader Rating: (8/100% )	I wasnt guessing, or second guessing, i was explaining to anyone who would want to come in and read this thread and not quite understand the reasoning behind it.

06-22-2007, 05:17 PM	#9 (permalink)
jdchmiel No Skills Join Date: Sep 2006 Location: raleigh nc Posts: 280 Thanks: 4 Thanked 5 Times in 5 Posts iTrader Rating: (1/100% )	dammit argue with me, i hate arguing with soemone who is saying the same thing im saying !

06-24-2007, 02:22 AM	#10 (permalink)
Weasy2k 3.4L 10K RPM In the works Join Date: Mar 2005 Location: Vancouver, BC Posts: 8,895 Thanks: 34 Thanked 80 Times in 66 Posts iTrader Rating: (9/100% )	^ dude your so wrong