Larger MAF, fuel and timing mod
03-26-2007, 09:19 PM
#1
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
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
Last edited by NmexMAX; 08-10-2010 at 10:59 AM.
03-28-2007, 01:44 PM
#2
G37S > I35 > UR Max
Join Date: Aug 2004
Location: (P)ure (G)arbage, MD
Posts: 899
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).
03-30-2007, 04:10 PM
#5
Originally Posted by steven88
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
Originally Posted by leeI35
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?
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?
03-30-2007, 04:29 PM
#8
Originally Posted by NmexMAX
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 %.
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 %.
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
03-30-2007, 08:56 PM
#12
Originally Posted by steven88
if you don't know, then how would u know 17 out is the A33 setting, and 1 In is the q45 setting?
03-30-2007, 09:42 PM
#14
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.
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.
03-30-2007, 10:21 PM
#15
Originally Posted by streetzlegend
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......
03-30-2007, 10:22 PM
#16
Originally Posted by nismology
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.
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.
03-31-2007, 01:26 AM
#17
Originally Posted by steven88
thank you...at least someone understands what i'm trying to say
Doesn't really matter since 99.98% of you will not ever do the MAF mod.
03-31-2007, 10:28 AM
#19
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.
Then refer to the SAFCII manual and modify the values with respect to your application.
04-01-2007, 12:16 AM
#20
Originally Posted by nismology
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.
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.
04-01-2007, 12:27 AM
#21
Originally Posted by goldtooth
why are u saying both 1 IN and 1 OUT, as well as 4 IN and 4 OUT?
Originally Posted by NmexMAX
Doesn't really matter since 99.98% of you will not ever do the MAF mod.
Unless you have a modified MAF, don't worry about this thread.
04-07-2007, 04:26 PM
#24
G37S > I35 > UR Max
Join Date: Aug 2004
Location: (P)ure (G)arbage, MD
Posts: 899
Originally Posted by NmexMAX
There she is, installed. Or shall I say ghetto rigged and ghetto captured w/ a ghetto phone.
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.
04-07-2007, 04:31 PM
#26
G37S > I35 > UR Max
Join Date: Aug 2004
Location: (P)ure (G)arbage, MD
Posts: 899
Originally Posted by NmexMAX
That's correct on the settings.
I wonder if I should ask a mod to make this a separate thread...
I wonder if I should ask a mod to make this a separate thread...
04-07-2007, 04:31 PM
#27
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.
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.
04-07-2007, 04:50 PM
#28
G37S > I35 > UR Max
Join Date: Aug 2004
Location: (P)ure (G)arbage, MD
Posts: 899
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.
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.
04-07-2007, 05:22 PM
#30
G37S > I35 > UR Max
Join Date: Aug 2004
Location: (P)ure (G)arbage, MD
Posts: 899
Originally Posted by steven88
Lee, you got an 82mm MAF?
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.
04-07-2007, 06:52 PM
#32
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.
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.
04-13-2007, 09:13 PM
#36
Originally Posted by SR20DEN
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.
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.
Back in the day, I thought about upsizing, but then I just decided to take the MAF out altogether...
04-14-2007, 01:19 AM
#37
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?
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?
04-14-2007, 01:58 PM
#38
Originally Posted by DandyMax
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...
Back in the day, I thought about upsizing, but then I just decided to take the MAF out altogether...
Originally Posted by AnDyMaN
i don't need a afc controller to do this mod right? and i won't have to worry about timing either..... right?
04-14-2007, 06:15 PM
#39
Originally Posted by NmexMAX
I saw what you did there... IBatmosphericconditionsmustremainthesmeforeachsaid program
... 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...
