New mass airflow sensor option.

[Precision Flow Labs]

Hey everyone. I'm the owner of precision flow labs. I've been manufacturing mass airflow sensors for years in the domestic market and some imports.

I'm looking for someone to beta test a new Z32 replacement maf I've designed. I've built two maf styles. one that is 3" for blow thru applications and one that is 85mm for draw thru. Both mafs are billet aluminum and anodized. When either maf is installed it outputs voltage exactly as a stock z32 maf would.

I'm looking for someone with some mods and preferably a Z32 maf already installed and tuned on their car. If you are interested P.M. me and if I think it's a fit I will send you a maf for free.

[Croustibat]

I am not a candidate for this, my setup does not need one, but i know someone who would be a good test subjet. He is currently aiming at 600+HP on a ca18det, and is a known tuner here (using nistune).

Can you provide some graphs of the MAF response ? Does it include noise filters ? I am asking, because the original Z32 does, and all Z32 copies i have seen dont.

[Precision Flow Labs]

I am not a candidate for this, my setup does not need one, but i know someone who would be a good test subjet. He is currently aiming at 600+HP on a ca18det, and is a known tuner here (using nistune).

Can you provide some graphs of the MAF response ? Does it include noise filters ? I am asking, because the original Z32 does, and all Z32 copies i have seen dont.

Yes I can and yes it does. I use the new Hitachi cartrige style sensor elements as the base sensor in my mafs. These are the same base sensors used by Nissan OEM currently.

I DO NOT use cheap knock off sensor elements.

[ch1873857]

thats funny because z32 MAF sensors dont support 600hp+ ( dont start endless argument.please..)

im intrigued by this. Im sick of getting bad MAFs that are old as shit and only last half a season and prove to be unreliable.

PMd you

[Precision Flow Labs]

thats funny because z32 MAF sensors dont support 600hp+ ( dont start endless argument.please..)

im intrigued by this. Im sick of getting bad MAFs that are old as shit and only last half a season and prove to be unreliable.

PMd you

I am not limited to using the the stock Z32 maf transfer function. for example if your car was tuned to use a Z32 maf and 550 cc injectors. I could calibrate the maf for .76 times the stock z32 transfer function and you could use 720's. 550/720=.76. another way to think about it is the maf would be moving 1.31 times more air than the stock z32 maf but outputting the same voltage as the stock Z32. 720/550=1.31

[Precision Flow Labs]

Also, don't forget I can build these in smaller blow-thru housings as well. Then you can vent BOV's without any problems and eliminate any restriction on the inlet side of the turbo.

I will post some pictures tonight or tomorrow.

[Precision Flow Labs]

I am not limited to using the the stock Z32 maf transfer function. for example if your car was tuned to use a Z32 maf and 550 cc injectors. I could calibrate the maf for .76 times the stock z32 transfer function and you could use 720's. 550/720=.76. another way to think about it is the maf would be moving 1.31 times more air than the stock z32 maf but outputting the same voltage as the stock Z32. 720/550=1.31

I guess a better example would have been 660's and 850's since the stock z32 maf calibration and 660's are both good for about 500HP but you get the idea.

[Croustibat]

I am not limited to using the the stock Z32 maf transfer function. for example if your car was tuned to use a Z32 maf and 550 cc injectors. I could calibrate the maf for .76 times the stock z32 transfer function and you could use 720's. 550/720=.76. another way to think about it is the maf would be moving 1.31 times more air than the stock z32 maf but outputting the same voltage as the stock Z32. 720/550=1.31

Dont bother answering him, hes a clown (to be polite, some other words came to my mind - you just need to check his previous posts to see for yourself). he has proven it already by insulting everyone who dare disagree with him. Or just when he fells he can do it.

I was not trying to imply you used a poor sensor, sorry if it felt like that. I am french and sometimes what i write can look a bit rude. When i want to be rude, that cant be mistaken though :D

Also when i said "known tuner here", i meant where i live not on zilvia. He operates a tuning shop, so that is the kind of product he may be interested in. Can you PM me some contact info ? I will send him asap.

He is using 1600cc injectors on his own S13, and a Z32 MAF. Can you change the MAF response point by point or is it only a multiplier ? The biggest problem we got with Z32 MAFs on our small engines in Europe (ca18det) is that idle flow is too low and a Z32 maf has trouble reading it, so we get stuck with lumpy idle, and then we cant pass smog tests. Better low range combiner with higher top range sounds nice.

[Precision Flow Labs]

Dont bother answering him, hes a clown (to be polite, some other words came to my mind - you just need to check his previous posts to see for yourself). he has proven it already by insulting everyone who dare disagree with him. Or just when he fells he can do it.

I was not trying to imply you used a poor sensor, sorry if it felt like that. I am french and sometimes what i write can look a bit rude. When i want to be rude, that cant be mistaken though :D

Also when i said "known tuner here", i meant where i live not on zilvia. He operates a tuning shop, so that is the kind of product he may be interested in. Can you PM me some contact info ? I will send him asap.

He is using 1600cc injectors on his own S13, and a Z32 MAF. Can you change the MAF response point by point or is it only a multiplier ? The biggest problem we got with Z32 MAFs on our small engines in Europe (ca18det) is that idle flow is too low and a Z32 maf has trouble reading it, so we get stuck with lumpy idle, and then we cant pass smog tests. Better low range combiner with higher top range sounds nice.


No, I can change the shape of the curve as well. I was trying to build a maf using the z32 curve since it was well known. If you have the ability to change the maf transfer function in the ecu I can develop a couple custom curves. for example stock z32 idle voltage or a little higher for small displacement engines but not hitting 5volts untill 500hp or 800 or whatever. I would like to have as few calibrations as possible as things would get confusing for everyone.

What do ca18's sr20's and ka's generally idle at for voltage with z32 mafs installed?

[Precision Flow Labs]

Pics of the 85mm draw thru maf. 4 3/16 long
http://i285.photobucket.com/albums/ll63/will1311/IMAG0232_zpsb79ff5ed.jpg
http://i285.photobucket.com/albums/ll63/will1311/IMAG0231_zps64a40dae.jpg
Pics of the 3" blow thru maf. 7" long
http://i285.photobucket.com/albums/ll63/will1311/IMAG0229_zps6674af3e.jpg
http://i285.photobucket.com/albums/ll63/will1311/IMAG0227_zps491fb62b.jpg

[Croustibat]

He and I are using nistune for our tunes, it allows to change the MAF conversion table. It includes as standard a lot of known MAF signals, so changing it is very easy.

Right now, the standard Z32 MAF on these engines are nearly max near 500HP, yes. But the same sensor in a bigger housing would trade less resolution for higher max flow. If your sensor has a better low range resolution then we can use that, otherwise we cannot "fix" that lumpy idle.

I will ask him the voltage level, but it is pretty low. I am using an SR20DET maf as i did not need to go Z32 (which is now maxed though )

[Precision Flow Labs]

Like I said I can do something that say has the sr20 maf idle voltage and the z32 top end. I can then offer another high horsepower calibration that is globaly scaled higher when used in the same housing. also, if you know the stock idle voltage on an sr20 that would be helpful too.

[Matej]

Make an OEM-replacement blow-through MAF. :)

[Precision Flow Labs]

He and I are using nistune for our tunes, it allows to change the MAF conversion table. It includes as standard a lot of known MAF signals, so changing it is very easy.

Right now, the standard Z32 MAF on these engines are nearly max near 500HP, yes. But the same sensor in a bigger housing would trade less resolution for higher max flow. If your sensor has a better low range resolution then we can use that, otherwise we cannot "fix" that lumpy idle.

I will ask him the voltage level, but it is pretty low. I am using an SR20DET maf as i did not need to go Z32 (which is now maxed though )

I noticed this thread on nistune Nistune Forums • View topic - MAF compatibility question: HPX 05+ MAF (for Ford Mustang) (http://forum.nistune.com/viewtopic.php?f=12&t=1739&start=45)

People are trying to hack the ford HPX spreadsheet I made for the transfer function for the PMAS hpx maf lol.. If you could be so kind as to share this and point them to this thread. All people have to do is ask nicely :)

base flow KG/HR=-9.475184+59.921788*V-135.60886*V^2+166.77782*V^3-111.50394*V^4+44.218751*V^5-10.131798*V^6+1.2482716*V^7-0.065666262*V^8+0.00029343852*V^9

Base flow * maf housing area in sq/in= maf flow KG/HR

The V in the equation is maf volts
This equation will take maf volts from the pmas ford HPX and give you flow in KG/HR

[Precision Flow Labs]

Make an OEM-replacement blow-through MAF. :)

The maf with the stock z32 calibration will be.. just bigger and no stupid flange :) see picture of 3" maf above. that will output exactly the same as a stock z32 maf installed on the inlet of the turbo, Only it will be 3" and installed before the throttle body.

[Croustibat]

I noticed this thread on nistune Nistune Forums • View topic - MAF compatibility question: HPX 05+ MAF (for Ford Mustang) (http://forum.nistune.com/viewtopic.php?f=12&t=1739&start=45)

People are trying to hack the ford HPX spreadsheet I made for the transfer function for the PMAS hpx maf lol.. If you could be so kind as to share this and point them to this thread. All people have to do is ask nicely :)

base flow KG/HR=-9.475184+59.921788*V-135.60886*V^2+166.77782*V^3-111.50394*V^4+44.218751*V^5-10.131798*V^6+1.2482716*V^7-0.065666262*V^8+0.00029343852*V^9

Base flow * maf housing area in sq/in= maf flow KG/HR

The V in the equation is maf volts
This equation will take maf volts from the pmas ford HPX and give you flow in KG/HR

You can post on the nistune forum, registration is not limited to nistune users. The post you are refering to had its last answer 11 month ago though, so they may have figured it out.

I just transfered your contact info to my friend, he should be able to send you the info you need, too.

We both are running a ca18det, although he sees a lot of sr20det at the shop, so he should be able to tell you about sr20 voltage. I made a log a few days ago on my car, i can give you the info for an sr20 maf on a ca18 (not sure it really is worth it to you though) .

The pro of using an SR20 maf instead of a z32 one is that it is a matter of unplugging one and plugging the other instead, where Z32 needs to rewire and use an adapter plate. the sr20 maf is also enough for over 300HP and most people dont go over that kind of power here. that and they are cheap.

[Precision Flow Labs]

Does anybody have some feedback on idle maf voltage with an sr or ca powered car with a Z32 maf? I would like to get this curve dialed in a little better.

[di-devol]

Almost warmed up I get 1.38v at idle

[cotbu]

The voltage is not linear, every engine won't idle pulling the same voltage. There are times when the low voltage trigger is hit. Like with smaller engines.

[Precision Flow Labs]

Almost warmed up I get 1.38v at idle

Thank you, exactly the type of info I'm looking for.

[Precision Flow Labs]

The voltage is not linear, every engine won't idle pulling the same voltage. There are times when the low voltage trigger is hit. Like with smaller engines.

I know, I have the stock Z32 transfer function curve fit with a 9th order equation. What I was actually looking for was idle airflow. If I can get some voltage readings at idle from some people I can calculate approx. Idle airflow on smaller displacement engines like the SR. Then I can generate a custom curve with higher voltages at that idle airflow to give better idle resolution.

[Precision Flow Labs]

Now is the time to start setting up a group buy btw. I will be machining more housings in the next couple weeks. 130.00 if you guys can come up with at least 10 orders.

Btw, I have contacted this site for advertising information I'm not trying to take advantage of this forum.

[R33E8]

Wow 130 is not bad.. If I wasn't running a standalone and needed a maf I would hop on it..

What kind of plug does it use and will it come with one?

[Precision Flow Labs]

Wow 130 is not bad.. If I wasn't running a standalone and needed a maf I would hop on it..

What kind of plug does it use and will it come with one?

It will come with a plug and pigtail. it is the 05+ ford style maf connector.

If it's an AEM you can use maf. I've done it and it actually works a lot better than Speed density if it's a blow thru maf.

They will be around 170 after the group buy.

[Precision Flow Labs]

The voltage is not linear, every engine won't idle pulling the same voltage. There are times when the low voltage trigger is hit. Like with smaller engines.

Has anyone found the min maf voltage scalar location in your tuning software yet? In most pcm's you can change that value.

If you know the stock min voltage and how many bits the a/d is in the pcm it will help you find the scalar in the hex file.

example.. if the d/a is 10 bits (1024) and the min maf value is 1.2 1024/5vmax= 204.8 bits per volt 204.8*1.2=245.76 so you go in the hex and look for the value 246.. change it to something higher and see if it works.

[Precision Flow Labs]

Ok, Here are the curves I've come up with..
GT1 stock Z32 curve approx 400WHP
GT2 raised idle voltage by 0.2 volts from stock Z32 but with stock Z32 top end 400WHP
GT3 raised idle voltage from stock Z32 by 0.2 volts top end good for 500WHP
GT4 same raised idle voltage as GT2 and GT3 but top end good for 800WHP (for the crazy RB and VG guys or anyone else making crazy power)

[Croustibat]

That should be pretty nice. I gave your contact info to my friend,i hope he has answered.

[Precision Flow Labs]

That should be pretty nice. I gave your contact info to my friend,i hope he has answered.
He hasn't yet.

[ashtonroche]

thats funny because z32 MAF sensors dont support 600hp+ ( dont start endless argument.please..)

im intrigued by this. Im sick of getting bad MAFs that are old as shit and only last half a season and prove to be unreliable.

PMd you

They can when put into a larger housing :) Simple science. The gtr guys get an extra 150-200whp by upgrading from the factory 2.5" intake pipes to a 3" intake pipe and retune. You have a larger volume pipe thus it takes more air to equate the same voltage it would have seen in its normal housing.

But you are correct, z32 mafs are good to about 550whp reliably and thats about max. I know this for a fact because thats what I maxed mine out at.

[Precision Flow Labs]

They can when put into a larger housing :) Simple science. The gtr guys get an extra 150-200whp by upgrading from the factory 2.5" intake pipes to a 3" intake pipe and retune. You have a larger volume pipe thus it takes more air to equate the same voltage it would have seen in its normal housing.

But you are correct, z32 mafs are good to about 550whp reliably and thats about max. I know this for a fact because thats what I maxed mine out at.
Good point. Just to clarify... These calibrations on the sensors are done in the tube that will be used!! You can take the sensor out and put it in a different housing but the scale will change by the area change. example If you get a 3" blow thru with a z32 gt1 curve, it will act like a stock z32 maf when in the 3" tube. If you get an 85mm with the z32 gt1 curve it will act like a stock z32 maf when used in the 85 mm housing..

Btw, what units does your tuning software use? Kg/hr lb/min etc?

Here is an example of a transfer function generating tool I made for a maf I build.
This specific one is for the uprev MAFGT I designed and built for them.
http://www.massairdirect.com/resources/HPXNISSAN.xls

[240z4u]

I am tuned on a maxed out z32 sensor. You posted in reply to my thread at nico regarding a higher output sensor. This looks like a nice project. I may be willing to guinea pig this sensor for you even though I already ordered a PMAS setup. Send me a PM. The one problem is that I won't be driving this car for months.

[Precision Flow Labs]

I am tuned on a maxed out z32 sensor. You posted in reply to my thread at nico regarding a higher output sensor. This looks like a nice project. I may be willing to guinea pig this sensor for you even though I already ordered a PMAS setup. Send me a PM. The one problem is that I won't be driving this car for months.

I am pmas lol :) What sensor did you buy? hpx ford style or nissan style? After you get it you can always send it to me and I can put a different calibration on it.

The ford style HPX is going to have a VERY low idle voltage compared to the z32 maf.

Here is the stock Z32 transfer function if anyone is interested.. units are volts and KG/HR
0.8 3.82
0.9 5.87
1 8.54
1.1 11.90
1.2 16.02
1.3 20.98
1.4 26.85
1.5 33.70
1.6 41.61
1.7 50.64
1.8 60.86
1.9 72.35
2 85.17
2.2 115.09
2.4 151.17
2.6 193.94
2.8 243.95
3 301.72
3.2 367.77
3.4 442.64
3.6 526.84
3.8 620.88
4 725.27
4.2 840.53
4.4 967.16
4.6 1105.66
4.8 1256.53
5 1420.28

Here is the direct equation for the z32 maf.. use this to get flows for the exact
voltages used by your tuning software. then compare the flows in kg/hr to the "units" in the tuning software and you should have a way to figure out what the units are.
FLOW in KG/HR=((VOLTS-0.17685819)/0.39215738)^(1/0.34572979)

[240z4u]

HPX ford. I got it from anderson motorsports on clearance. I am not exactly sure what it is embarrassingly enough. It should already be at my house. I may need to have you change the transfer function, I'll send you a PM.

FWIW, I am willing to help anyway I can so you can get this rolling and on shelves. I have half heartedly looked for a long time for a solution to this z32 mass airflow sensor cap.

[Precision Flow Labs]

HPX ford. I got it from anderson motorsports on clearance. I am not exactly sure what it is embarrassingly enough. It should already be at my house. I may need to have you change the transfer function, I'll send you a PM.

FWIW, I am willing to help anyway I can so you can get this rolling and on shelves. I have half heartedly looked for a long time for a solution to this z32 mass airflow sensor cap.

Here is the transfer function generating tool for what you ordered.
http://www.massairdirect.com/resources/tools/HPXtool.XLS

[240z4u]

Here is the transfer function generating tool for what you ordered.
http://www.massairdirect.com/resources/tools/HPXtool.XLS

I owe you a beer :)

[Precision Flow Labs]

I owe you a beer :)

Coors light please :)

[[email protected]]

No, that will be a Labatt:)

[240z4u]

I like that you joined just to announce your beer preference. :)

[[email protected]]

I like that you joined just to announce your beer preference. :)

I hope from here on out I can help with more than just the better beer:)

[Precision Flow Labs]

I hope from here on out I can help with more than just the better beer:)

lol you would turn this into a beer thread Jeremy..

[MrSanchez925]

You should really post this info On Twinturbo.net and 300zxclub.com

the z32 crowd would be VERY interested in this design and being able to dump into the atmosphere with out going MAP.

[Precision Flow Labs]

You should really post this info On Twinturbo.net and 300zxclub.com

the z32 crowd would be VERY interested in this design and being able to dump into the atmosphere with out going MAP.

I honestly don't feel right posting this everywhere without sponsoring the site. we are in the process of setting up as a vendor here to get our foot in the door with the Nissan guys.. We will eventually do more but I'm going to let word of mouth work some magic first. Not to say I wouldn't appreciate a friendly link if you are a member of that site :)

[MrSanchez925]

I'll set up a thread on 300zxclub tomorrow with a link to this.

But for now I posted this link onto 2 big z32 Facebook groups.

[[email protected]]

^^^^exactly. we don't want to step on any toes. we want to make sure all avenues are taken correctly..
We would love to post this every where, but we don't want to make forums think we are taking advantage of them..

[Precision Flow Labs]

I'll set up a thread on 300zxclub tomorrow with a link to this.

But for now I posted this link onto 2 big z32 Facebook groups.

Just so there is no confusion Jeremy is also an owner and maf extraordinaire.. feel free to ask either of us any questions you might have..

I owe you a favor good sir.. Jeremy, myself and the rest of P.F.L. will do whatever we can to build you guys some great meters.

[[email protected]]

Thank you MrSanchez. We will be setting up vendor accounts anywhere we need to.

[ZEROtraction32]

@Precision Flow Labs,
I would love to get in contact with you to hear more/test more on "blow thru" applications you have in going for the Z32. We at Driven Authority are doing our own testing with TT applications and our own custom Remote Mount Turbo set-up and through the past couple of months we have been discussing the possibilities of converting the stock MAF to "blow thru". To help with piping and sensor locations a "blow thru" MAF would be just what we are looking for.

I think with our own personal in-house Dyno to play around with, tuning software and brains, we can help each other out in the community!!! Like I mentioned above, we at Driven Authority would love to get in contact with you further....

You can reach me at 916-457-7062 (10a.m.-6p.m.)
Thanks, and finally good to hear about this product!
Matt.

[Precision Flow Labs]

@Precision Flow Labs,
I would love to get in contact with you to hear more/test more on "blow thru" applications you have in going for the Z32. We at Driven Authority are doing our own testing with TT applications and our own custom Remote Mount Turbo set-up and through the past couple of months we have been discussing the possibilities of converting the stock MAF to "blow thru". To help with piping and sensor locations a "blow thru" MAF would be just what we are looking for.

I think with our own personal in-house Dyno to play around with, tuning software and brains, we can help each other out in the community!!! Like I mentioned above, we at Driven Authority would love to get in contact with you further....

You can reach me at 916-457-7062 (10a.m.-6p.m.)
Thanks, and finally good to hear about this product!
Matt.

We will be in touch tomorrow..

[MrSanchez925]

@Precision Flow Labs,
I would love to get in contact with you to hear more/test more on "blow thru" applications you have in going for the Z32. We at Driven Authority are doing our own testing with TT applications and our own custom Remote Mount Turbo set-up and through the past couple of months we have been discussing the possibilities of converting the stock MAF to "blow thru". To help with piping and sensor locations a "blow thru" MAF would be just what we are looking for.

I think with our own personal in-house Dyno to play around with, tuning software and brains, we can help each other out in the community!!! Like I mentioned above, we at Driven Authority would love to get in contact with you further....

You can reach me at 916-457-7062 (10a.m.-6p.m.)
Thanks, and finally good to hear about this product!
Matt.

Ah I saw Joe share my link on your page!

glad I could help get the word out!!

also Posted a link this thread on 3zc.com just now.

[Precision Flow Labs]

if anyone is worried about putting mafs post turbo with all the extra heat and possible maf failures. We have been using blow-thru mafs on thousands of big boost big power mustangs for many years with no problems.. You can google and see how many people are using them with great results. If you do have a horrible turbo spewing oil and it actually makes it all the way through the IC up the pipe and to the maf, all you have to do is spray electrical parts cleaner on the maf and it's as good as new.

[Chronox2]

You should go to 300zxclub.com as the 300zx community uses now dual MAF for power builds. We use x2 elbows, filters, MAF and then connect it to a Translator to fix the A/R.


"The Selin Design Dual MAF Translator makes it easier than ever to perform a proper dual intake conversion. With true dual MAF air intake metering and plug-n-play installation this product allows you to upgrade to a dual intake without the need for an ECU re-flash or dyno tuning. You could install one in the morning and take it for a cruise that afternoon. No messing with ECU reflashing, unknown wait times, or lengthy complicated installations. If you have the classic dummy MAF setup and have been considering upgrading to a true dual MAF, the product is DIP switch selectable to work properly with dual intake tuned ECU’s."

http://i932.photobucket.com/albums/ad165/selindesign/Selin_MAF_translator1.jpg
http://specialtyz.com/blog/wp-content/uploads/2010/03/szterrypops.jpg

[Precision Flow Labs]

You should go to 300zxclub.com as the 300zx community uses now dual MAF for power builds. We use x2 elbows, filters, MAF and then connect it to a Translator to fix the A/R.


"The Selin Design Dual MAF Translator makes it easier than ever to perform a proper dual intake conversion. With true dual MAF air intake metering and plug-n-play installation this product allows you to upgrade to a dual intake without the need for an ECU re-flash or dyno tuning. You could install one in the morning and take it for a cruise that afternoon. No messing with ECU reflashing, unknown wait times, or lengthy complicated installations. If you have the classic dummy MAF setup and have been considering upgrading to a true dual MAF, the product is DIP switch selectable to work properly with dual intake tuned ECU’s."



That's actually easy. I can build an averaging circuit for two mafs. then you could get the GT1 z32 cal for the stock range with two mafs or I can have a cal that is 2 times the range of the stock Z32 cal for cars that are flashed for a pop charger setup. Or you can still use the GT1 stock z32 cal for guys that already have that averaging box.

[fyneyoungstunna]

I came into this thread like "ooh shines for my z32" then I realized I had no idea what just happened.
any benefit for a N/A car with headwork?

[Precision Flow Labs]

I came into this thread like "ooh shines for my z32" then I realized I had no idea what just happened.
any benefit for a N/A car with headwork?

If you replace the stock maf with the 85mm or 95mm housing and maf element, yes. It's less restrictive.

[fyneyoungstunna]

nice!
im going to a z31t ecu on my 280zxt so I might get two of your maf's and work one into that swap. Im just starting to learn about the l28et and the 280zxt....

[Precision Flow Labs]

http://i146.photobucket.com/albums/r264/Robs26reef/511ad078.jpg

Here is the maf pinout.. temp sensor is not used

[fyneyoungstunna]

^ tits

can you do this with other mafs or are you limited to nissan?
I know two different car groups that might be interested in this.

[Precision Flow Labs]

^ tits

can you do this with other mafs or are you limited to nissan?
I know two different car groups that might be interested in this.

Depends on the stock maf.. I can do a lot of them.. I can put the supra TT curve on these mafs for example. Actually have a friend using one of those on his Dyno queen supra.

Pretty sure I can do subies too.

[WESamiss]

I'm sure a ton of guys on KA-T.org could help you with testing if thats what you need. Shoot, I want you to sell me one right now. I am doing a KA-T set up and will probably using a z32 MAFS. I've been hunting for a housing like this.

[gjfatkri]

He hasn't yet.http://flash.eviziotvreviews.com/9.jpg

[Precision Flow Labs]

I'm sure a ton of guys on KA-T.org could help you with testing if thats what you need. Shoot, I want you to sell me one right now. I am doing a KA-T set up and will probably using a z32 MAFS. I've been hunting for a housing like this.

There are already a couple guys on this site testing them. I actually already know they work fine. I just obviously need a few on cars in the community so other people can see that they work.

[jschrauwen]

I briefly skimmed through the preceeding posts.
I'm curious if this new MAF or prospects of a potential MAF co-joiner unit for adding/averaging MAF signals would be of benefit to me.

This is my set-up;
Dual N62 MAF's wired to Apexi NEO to average both signals.
Z32 ECU with Nistune which is programmed for dual intake (so it would double the NEO MAF signal input) and configured for my PE850cc injectors.
Dyno'd last August at 572.1 RWHP @21psi on 94 octane pump gas.

http://img580.imageshack.us/img580/1553/17apr10027.jpg

http://img580.imageshack.us/img580/2980/17apr10028.jpg

http://img580.imageshack.us/img580/9687/17apr10026.jpg

[WESamiss]

There are already a couple guys on this site testing them. I actually already know they work fine. I just obviously need a few on cars in the community so other people can see that they work.

Fair enough. Have you mentioned a price yet?

[Precision Flow Labs]

Fair enough. Have you mentioned a price yet?
175 with a pigtail 150 without.

[Precision Flow Labs]

I briefly skimmed through the preceeding posts.
I'm curious if this new MAF or prospects of a potential MAF co-joiner unit for adding/averaging MAF signals would be of benefit to me.

This is my set-up;
Dual N62 MAF's wired to Apexi NEO to average both signals.
Z32 ECU with Nistune which is programmed for dual intake (so it would double the NEO MAF signal input) and configured for my PE850cc injectors.
Dyno'd last August at 572.1 RWHP @21psi on 94 octane pump gas.


If you have a NEO you don't need an averaging circuit but you would benefit by going to a blow through setup.

[jschrauwen]

If you have a NEO you don't need an averaging circuit but you would benefit by going to a blow through setup.Thanks for the timely reply Nick.
The NEO was installed over 5 years ago during my rebuild and was intended for tuning purposes at that time. Since then I upgraded to a Dual MAF intake which also required the need to join (and average) those 2 MAF signals via the Apexi NEO since a Z32 ECU doesn't accept a dual MAF input like the R32 does. Later still, I had Nistune installed which simply takes that averaged NEO MAF signal to double.
At this point, I can do away with the Apexi NEO as long as I can find a viable substitute that can combine the 2 MAF signals for my ECU. I've been hesitating on the above mentioned Selin Translator for 2 reasons.
1. It's not cost effective at this point.
2. It has been (and may continue to be) plagued with being susceptable to extranneous RF energy. Most Z32 owners mount their HID kit ballasts under the nose panel which happens to be too close in proximity to the Selin Translator. Many owners of the Selin translator having their HID ballasts located close to the translator suffer severe effects to the point of rendering the car undriveable. To date, I haven't heard of a 100% cure or fix to this dilemma.

Nick, your averaging circuit would have to be isolated/protected to a high degree to prevent extranneous RF energy interferance.

[Precision Flow Labs]

Thanks for the timely reply Nick.
The NEO was installed over 5 years ago during my rebuild and was intended for tuning purposes at that time. Since then I upgraded to a Dual MAF intake which also required the need to join (and average) those 2 MAF signals via the Apexi NEO since a Z32 ECU doesn't accept a dual MAF input like the R32 does. Later still, I had Nistune installed which simply takes that averaged NEO MAF signal to double.
At this point, I can do away with the Apexi NEO as long as I can find a viable substitute that can combine the 2 MAF signals for my ECU. I've been hesitating on the above mentioned Selin Translator for 2 reasons.
1. It's not cost effective at this point.
2. It has been (and may continue to be) plagued with being susceptable to extranneous RF energy. Most Z32 owners mount their HID kit ballasts under the nose panel which happens to be too close in proximity to the Selin Translator. Many owners of the Selin translator having their HID ballasts located close to the translator suffer severe effects to the point of rendering the car undriveable. To date, I haven't heard of a 100% cure or fix to this dilemma.

Nick, your averaging circuit would have to be isolated/protected to a high degree to prevent extranneous RF energy interferance.

I'm not in a place to start building a circuit for that at this point. Is there any reason you are trying to get away from using the NEO?

[Precision Flow Labs]

For anyone tuning with the VQ table, it looks to me like you need to devide the "units" by 36 to get KG/HR

[Yellow4g63]

Wow wish I found out about you last year. I just ditched my Nistune ecu for a AEM because I had too many problems with a my Blow through setup on a Lightning maf. could have saved myself $1700.

[Precision Flow Labs]

Ok everybody, the person that was going to test the 3" blow through can't get to it soon enough.. I'm looking for a car with some decent mods that is already running a z32 maf and also has the ability to tune your car.. You would need to have the ability to put this maf on and get right on testing.. Any takers? I will get the maf shipped today.

[240z4u]

These guys were awesome enough to do a calibrated sensor for my car and I look forward to updating this thread! I am not the right candidate for the blow-through testing due to timeframe. They are great to deal with, and anyone who is going to test this sensor is going to be very happy!

[[email protected]]

Thanks for the kind words.
I take it you recieved it already? I calibrated it on Friday night when we recieved it and got it to USPS Saturday morning.
Your sensor is slightly different than the slot style that we are using now but the curve is still pretty close. Would love to here your results and opinion on the sensor.

[twinspool]

I am definitely going to be picking up one of these blowthru z32 maf for my 26! Any one reply back on the results of this set up(blowthru)?

[[email protected]]

We have the aluminum for the 3" blow through meters at the machine shop and will be finished Wednesday the 13th. They will then go to the anodizer with a two day turn around and be ready for shipping by the 19th.

We will be starting a one time group buy at a discounted rate shortly, once the pieces are a little closer to completion.

[240z4u]

Precision Flow Labs to the rescue. Knowing that the PFC isn't capped by a z32 sensor anymore is awesome. The guys were able to recalibrate this PMAS mustang maf setup for me to offer more range while maintaining the curve of a z32 sensor. I am running draw through obviously. I will be building an intake to accommodate it soon!

http://i230.photobucket.com/albums/ee225/240z4u/2013-03-06_21-13-53_658_zpsbe422b0b.jpg
http://i230.photobucket.com/albums/ee225/240z4u/2013-03-06_21-13-38_473_zps4fcce219.jpg

[[email protected]]

Glad we could help.

[karkas9]

where can i buy one of your calibrated sensors?(assuming i cant be in the group buy cz im in canada)..?

[Frank_Jaeger]

I'm going blow-through in the near future. I'll definitely consider you guys as an option when I'm shopping for a MAF. The billet aluminum housing is a must for me, and I like that you retain the Z32 voltage scaling.

[[email protected]]

where can i buy one of your calibrated sensors?(assuming i cant be in the group buy cz im in canada)..?

May just add a bit more to cover shipping.

We will be picking up the housings from the anodizer tomorrow and will be renewing our vendor account here then starting the group buy. Probably post it up after the weekend.

[karkas9]

Q.has your testing shown if the temperature variations due to turbo will make significant voltage changes?
Q.can you leave an option for people that have 2 or 2.5 inch piping after compressor?
Q.will wiring (pigtail) be included?
Thank you

[[email protected]]

1. The sensors read mass. The temperature will not effect the way the sensor will read. It will still read the actual mass of the airflow now matter what the temp or pressure.

2. We can do a 2.5" calibration. Just like with the others, the sensor will need to be placed without a bend or coupler/transition in pipe size directly in front of it. The pipe will obviously need to be machined or have a saddle mounted to it for the sensor. Currently we haven't done a 2" calibration, but it shold be able to be done without too much of an issue once we get everything situated.

3. Currently we are unable to offer a pigtail cheaper than can be bought online. We are in the process of setting up an account to get the pigtails for cheaper. Once that is done, we will offer that.

[Precision Flow Labs]

I Made a transfer function generating tool for the GT4 high horsepower calibration. I will be making these for all of our calibrations. Should make tuning a lot more simple.

Here is the link http://www.mediafire.com/view/?6b5fm5kp6ki1usd

[[email protected]]

Just paid the advertising fee. As soon as I have permission to post a group buy it will begin. We have all the housings and sensors in stock so shipping will be imediate for the group buy.

[[email protected]]

Advertising payment has now cleared. Just waiting to activate priveliges to post the group buy.

[ch1873857]

link the group buy thread in this thread because i am interested for sure

[[email protected]]

Just started the group buy.

http://zilvia.net/f/group-buys/512893-precision-flow-labs-z32-blow-through-maf.html

[double zero]

what haS become of this??