Z32 MAF in NA car
01-23-2005, 05:55 PM
#1
Z32 MAF in NA car
well tonight i put the z32 (300zx) MAF on the maxima.... with afc adjustments, i got it to work well. 
does anyone know how much hp the stock 4th gen MAF holds? this one seems to be running fine, it actually seems to pull harder with this compared to the stock 4th gen.
does anyone know how much hp the stock 4th gen MAF holds? this one seems to be running fine, it actually seems to pull harder with this compared to the stock 4th gen.
you know better than to post without pics...
....
01-24-2005, 06:28 AM
#5
Originally Posted by spanishrice
is this with your 3.5 with the 4th gen ecu? You might of maxed out the stock one, and this one should be good up to like 450 crank I think.
01-24-2005, 09:17 AM
#8
Originally Posted by TILLEYS99
Is that NA power or boosted? I think boosted get more due to FMU?
01-24-2005, 11:09 AM
#10
Originally Posted by TILLEYS99
well tonight i put the z32 (300zx) MAF on the maxima.... with afc adjustments, i got it to work well. does anyone know how much hp the stock 4th gen MAF holds? this one seems to be running fine, it actually seems to pull harder with this compared to the stock 4th gen.
does anyone know how much hp the stock 4th gen MAF holds? this one seems to be running fine, it actually seems to pull harder with this compared to the stock 4th gen.Interesting stuff Tilley nice work, but a couple of ?’ so your using the 3.0 INJ right? If I'm not mistaken your pushing around 270hp to 285hp at the crank right now so how would it benefit at the moment. The 3.0 is good for metering 350bhp so your not at 100% DC yet. Z32 MAF is good for over 450+hp. But you stated that you adjusted it with the AFC are you using the Apexi unit or something else?
I assume that you tuned the stock 3.0 MAF to it's Max, so the Z32 MAF must allow you more room to adjust for more AF than the stock 4thgen can I could be wrong.
.
01-24-2005, 05:53 PM
#17
Supporting Maxima.org Member
Join Date: Aug 2004
Posts: 485
Originally Posted by spanishrice
yeah move to texas. So I can take my car over there and you can install a 3.5 in my car.
but you could come up and be a tourist and have tilley do your car!
01-24-2005, 08:56 PM
#18
Originally Posted by Stephen Max
Doesn't matter. The 4th gen maf can meter up to 350 bhp worth of air flow, at which time the injectors will be running at 100% duty cycle. To get more than that (or to lower your afr if you're at less than 100% DC) you can use a boost pressure referenced fmu to supply more fuel by raising fuel pressure. But the maf still only gives a maximum 5.1V signal, no matter whether boosted or NA. Boosted people go to the Z32 maf because it is calibrated for a higher air flow and you can stay with an airflow referenced fuel metering system.
01-25-2005, 09:12 AM
#19
C’mon we need more technical info on this.
What are you using to control the AF?
Ok so far the
Z32 MAF @ 5.1v 450-550 bhp ???
4th gen @ 5.1v 350bhp
Does the Z32 MAF plug into the existing 3.0 plug?
What year Z MAF do you recommend getting if that matters?
So is the timing calculated based off RPM and injector pulse width? with a bigger MAF will the ECU see less air then the stock ECU?
Thus this will give a lower pulse width which then decreases the advance timing rate.
If that's true then at a given cfm rate that the MAF see's with both MAF's the Z32 MAF will give out less voltage, therefore the ECU will see that and give a shorter PW so less fuel less advancing. So that will give you more room to make power and retard timing with the aid of an S-AFC or any other unit that controls AF, bigger TB bigger MAF more air more room for tuning more power to be made that's why Tilley can feel the difference when adjusting AF with the bigger MAF.
I could be wrong with all this but this is what I understand so far.
What are you using to control the AF?
Ok so far the
Z32 MAF @ 5.1v 450-550 bhp ???
4th gen @ 5.1v 350bhp
Does the Z32 MAF plug into the existing 3.0 plug?
What year Z MAF do you recommend getting if that matters?
So is the timing calculated based off RPM and injector pulse width? with a bigger MAF will the ECU see less air then the stock ECU?
Thus this will give a lower pulse width which then decreases the advance timing rate.
If that's true then at a given cfm rate that the MAF see's with both MAF's the Z32 MAF will give out less voltage, therefore the ECU will see that and give a shorter PW so less fuel less advancing. So that will give you more room to make power and retard timing with the aid of an S-AFC or any other unit that controls AF, bigger TB bigger MAF more air more room for tuning more power to be made that's why Tilley can feel the difference when adjusting AF with the bigger MAF.
I could be wrong with all this but this is what I understand so far.
01-25-2005, 03:25 PM
#20
Sounds about right too me.
Originally Posted by japmaxSE
C’mon we need more technical info on this.
What are you using to control the AF?
Ok so far the
Z32 MAF @ 5.1v 450-550 bhp ???
4th gen @ 5.1v 350bhp
Does the Z32 MAF plug into the existing 3.0 plug?
What year Z MAF do you recommend getting if that matters?
So is the timing calculated based off RPM and injector pulse width? with a bigger MAF will the ECU see less air then the stock ECU?
Thus this will give a lower pulse width which then decreases the advance timing rate.
If that's true then at a given cfm rate that the MAF see's with both MAF's the Z32 MAF will give out less voltage, therefore the ECU will see that and give a shorter PW so less fuel less advancing. So that will give you more room to make power and retard timing with the aid of an S-AFC or any other unit that controls AF, bigger TB bigger MAF more air more room for tuning more power to be made that's why Tilley can feel the difference when adjusting AF with the bigger MAF.
I could be wrong with all this but this is what I understand so far.
What are you using to control the AF?
Ok so far the
Z32 MAF @ 5.1v 450-550 bhp ???
4th gen @ 5.1v 350bhp
Does the Z32 MAF plug into the existing 3.0 plug?
What year Z MAF do you recommend getting if that matters?
So is the timing calculated based off RPM and injector pulse width? with a bigger MAF will the ECU see less air then the stock ECU?
Thus this will give a lower pulse width which then decreases the advance timing rate.
If that's true then at a given cfm rate that the MAF see's with both MAF's the Z32 MAF will give out less voltage, therefore the ECU will see that and give a shorter PW so less fuel less advancing. So that will give you more room to make power and retard timing with the aid of an S-AFC or any other unit that controls AF, bigger TB bigger MAF more air more room for tuning more power to be made that's why Tilley can feel the difference when adjusting AF with the bigger MAF.
I could be wrong with all this but this is what I understand so far.
01-25-2005, 09:05 PM
#21
Ok I see some of my ?'s unanswered I get the Hint. 
But for the people who want to do this here are some helpful links
How to WIRE up the Z32 MAF
http://forums.maxima.org/showthread.php?t=342180
http://forums.maxima.org/showthread.php?t=351427
But for the people who want to do this here are some helpful links
How to WIRE up the Z32 MAF
http://forums.maxima.org/showthread.php?t=342180
http://forums.maxima.org/showthread.php?t=351427
01-26-2005, 09:39 AM
#22
Supporting Maxima.org Member
Join Date: Aug 2004
Posts: 485
Originally Posted by japmaxSE
Ok I see some of my ?'s unanswered I get the Hint.
But for the people who want to do this here are some helpful links
How to WIRE up the Z32 MAF
http://forums.maxima.org/showthread.php?t=342180
http://forums.maxima.org/showthread.php?t=351427
But for the people who want to do this here are some helpful links
How to WIRE up the Z32 MAF
http://forums.maxima.org/showthread.php?t=342180
http://forums.maxima.org/showthread.php?t=351427
but only on the comp lol
01-26-2005, 10:32 AM
#24
z32 maf has a different plug, just there are two grounds on it and a bunch of people sell pigtails that you can wire up to your existing maf.
has anyone thought about the q45 TB? it is a lot larger to accomodate airflow.
has anyone thought about the q45 TB? it is a lot larger to accomodate airflow.
01-26-2005, 12:17 PM
#25
Supporting Maxima.org Member
Join Date: Aug 2004
Posts: 485
Originally Posted by slimer
z32 maf has a different plug, just there are two grounds on it and a bunch of people sell pigtails that you can wire up to your existing maf.
has anyone thought about the q45 TB? it is a lot larger to accomodate airflow.
has anyone thought about the q45 TB? it is a lot larger to accomodate airflow.
01-26-2005, 02:56 PM
#26
Originally Posted by slimer
z32 maf has a different plug, just there are two grounds on it and a bunch of people sell pigtails that you can wire up to your existing maf.
has anyone thought about the q45 TB? it is a lot larger to accomodate airflow.
has anyone thought about the q45 TB? it is a lot larger to accomodate airflow.
http://larrio.maximaclubca.com/proje...tb%20-%204.JPG
at 3.8v in 3rd gear, it makes it seem like there isn't much more room to go if the car is boosted. How does the voltage read in accordance with hp? (i.e. 0.1 v = x hp)
01-27-2005, 12:23 PM
#30
Originally Posted by TILLEYS99
it actually seems to pull harder with this compared to the stock 4th gen.
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