Credit : SR20DEN

Read this thread for details. Don't make assumptions, just read it..mmk? http://forums.maxima.org/all-motor/1...orks-fine.html


SAFCII + larger MAF housing . . . . .

This should work w/ the VAFCII also.

Long story short.

Settings,
Sens. No

In 1, OUT 17.

Impressions.

Throttle response = Greatly improved.
Overall Performance = Greatly improved.



Aside from that, here's my untuned data.
Not bad, but as always, there's room for improvement. I'm thinking a dyno should happen soon.

2346 13.0
2386 13.1
2420 13.1
2449 13.1
2470 13.1
2487 13.1
2529 13.1
2591 13.2
2659 13.2
2730 13.2
2787 13.2
2851 13.1
2917 13.2
3005 13.3
3136 13.4
3233 13.4
3349 13.3
3469 13.2
3576 13.3
3689 13.4
3800 13.8
3907 14.4
4054 14.9
4172 15.1
4305 14.9
4433 13.1
4644 13.3
4588 13.6
4691 13.4
4713 13.4
4755 13.5
4827 13.4
4855 13.5
4929 13.4
4941 13.5
5018 13.5
5054 13.4
5104 13.2
5154 13.3
5205 13.0
5238 13.0
5278 12.9
5332 12.9
5373 13.0
5415 12.9
5464 13.0
5522 13.0
5536 13.0
5588 13.1
5618 13.1
5672 13.1
5703 13.0
5750 13.0
5806 12.9
5814 12.9
5871 12.8
5904 12.8
5946 12.7
5980 12.8
6032 12.8
6076 12.8
6102 12.9
6138 12.9
6183 12.8
6230 12.8
6257 12.9
6295 12.9
6333 12.9
6362 12.9
6401 12.9
6461 12.9
6481 13.0
6511 12.9
6552 13.0
6583 12.9
6624 13.0
6645 13.0
6688 13.0
6720 13.0
6742 13.0
6797 13.1
6808 13.1
6841 13.1
6886 13.1
6909 13.2
6932 13.2
6978 13.2
7002 13.3
7037 13.2
7049 13.3
7073 13.3
7121 13.3

 

Wow search is your friend. Thanks NmexMax again. I hate my Berke Intake. Will modify housing and buy range rover parts tomorrow. I need to catch up with that dude to replace the parts to my stock air box (sorry thinking out loud).

 

1 question...

With the upgraded larger TB + Piping + Larger Maf Housing, are you using the GAB setup or closed stock Air-Box. Also, are you using a performance filter or stock air filter?

 

how come you put 1 in and 17 out? I never understood what these settings meant...I always left them on 1 in and 1 out

 

Because I'm using a MAF similar to that of a Q45 (In1) and my stock ECU (out 17)


K&N filter. My TB is stock. I'm using JWT POP. But I do plan on integrating this set-up to b friendly w/ the GAB/stock set-up.

 

but what does it mean, out 17?

 

17 is the A33 setting. 1 is the Q45 setting.

Essentially it 'curves' the signal to tailor it to the A33B ECU. If I hadn't done that, I would have had to make MAJOR corrections %.

 

well I can see that...but what does it MEAN?

what does 17 out MEAN to make it the a33 setting...and what does 1 IN mean to make it the q45 setting?

 

... They look pretty on the screen...RTFM

 

if you don't know, then how would u know 17 out is the A33 setting, and 1 In is the q45 setting?

 

Because I RTFM

 

Because the A-pexi manual says so. Every different MAF is assigned a number. In the case of the A32 MAF, the number is 4.

 

I think what he is asking, what exactly does the number mean? for example 1 in 2 out. wtf does 1 mean and wat does 2 mean? volts, pressure, degree, temp, a multiplier, etc......

 

For sensor number it's what i just said. A number used to identify specifically which MAF you're using. For an A32 this is 4 in 4 out since our A32's MAF's have been assigned the number 4.

For sensor calibration it's a multiplier. For instance, since a skyline has 2 MAF's and the ECU wants to see each signal separately it would be 2 in 2 out. If you wanted to convert that same skyline to a single MAF setup it would be 1 in 2 out. For a car that is using 2 MAF's but the ECU only wants one input from both of them the setting would be 2 in average out. For our purposes, 1 in 1 out is the correct setting.

 

thank you...at least someone understands what i'm trying to say

 

thank you...

 

I understood exactly what you said. I imagined the info to be obsolete to you, since there is the fact that you're demodding your car and selling it as well.

Doesn't really matter since 99.98% of you will not ever do the MAF mod.

 

so you're saying I should change it from the 1 IN and 1 OUT I have now, to 4 IN and 4 OUT? Would I have to retune after making this change?

 

Please reread the entire thread, most namely, this post. http://forums.maxima.org/showpost.ph...52&postcount=9

Then refer to the SAFCII manual and modify the values with respect to your application.

 

why are u saying both 1 IN and 1 OUT, as well as 4 IN and 4 OUT?

 

Unless you have a modified MAF, don't worry about this thread.

 

fair enough..... lol

 

There she is, installed. Or shall I say ghetto rigged and ghetto captured w/ a ghetto phone.

 

You have a cleaner setup then i do. I am using the berke mid pipe that I got cut and had it stretched to fit the rubber cuplings of the 82mm maf. Using the stock air box with K&N filter and GAB setup. I want to take a pic and post it.

I have a question about the SAFC II. I finally got the damn password off (couldn't remember it) and I want to change the sensor setting. I want to make sure that I read what you wrote correctly before I blow my engine. Go to the sensor settings and change the settings to in 1 and 17 out right? Sorry to keep asking you.

 

That's correct on the settings.

I wonder if I should ask a mod to make this a separate thread...

 

Thanks I am going to garage now to change the settings + do some back road whoring.

 

Im not using the Q45 MAF. I bought it from a member on here and am not sure what it came from.

Looks like the M62 piece, but from some of the pics ive seen, the M62 sensor bolt pattern is off by 90*

SAFC settings will recognize that maf as the Q45...that's where the Q45 came into play.

 

LMAO!!!! WOW WOW WOW WOW WOW. I can not get the f*ing grin off my face. I am definitely going for a dyno sometime next week or the week after at SRT. I love it....thanks NmexMax.

Pic of my ghetto setup. I took apart the GAB setup and closed the airbox. I will try just three different setups. 1) stock air box, 2) GAB 3) Apex'i Dry filter no Air box. Hopefully the shop will have patience for me to dyno each setup to see what yields better gains.



Oh and i was wrong about the size of the MAF, we have the same one LOL. I need to shorten the berke pipe about another half inch to an inch.

 

Lee, you got an 82mm MAF?

 

Yes sir!!! Ordered mine on monday received it on wednesday, and installed (finally) today.

Total was about $110 shipped.

I hope my dyno numbers stay the same or go up. I was at 242whp 236tq. Sorry no run files from Tempest Racing (seems there machines are always down when I go). Hopefully SRT will have a better setup for dynos.

 

can you point me in the direction from where you ordered it?

 

I am happy to see this thing FINALLY catching on.

Land Rover was selling them much cheaper than BMW (remember some Range Rovers are/were using the M62 V8). But let everyone know where you got it for $110.

 

www.car-part.com

 

what year should i be lookin for?

 

like it says in the linked thread, 2003-2005
PS:
has anybody logged the WOT timing gain from this?

 

I'm surprised more have not done it.
Back in the day, I thought about upsizing, but then I just decided to take the MAF out altogether...

 

this is a noob question, BUT............

with all this talk about afr and timing....

i don't need a afc controller to do this mod right? and i won't have to worry about timing either..... right?

 

I saw what you did there... IBatmosphericconditionsmustremainthesmeforeachsaid program


Yes you do, read the thread again. You'll go way lean w/o one and might do bad stuff to your internals. I'm not clear on your 2nd ?. Be a little clearer, get a better answer.

 

WOwthat'shardtoread lol

... but if you're saying what I think you're saying, then you probably also know that my pressure-based tune was adjusted for different air temps across the spectrum, so no need to keep re-tuning. I drove around for months with it in different weather with no problems. And IMHO my custom-made intake was about as free flowing as possible short of running an open TB...

 

^^Why past tense?



Ah, nm. The engine...