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JWT Chip and Z32 MAF or SAFC II and Z32 MAF

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Old May 21, 2008 | 08:51 PM
  #1  
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JWT Chip and Z32 MAF or SAFC II and Z32 MAF

What do you all think will be the best combination that will yield the most HP? Do you all think that the JWT and Z32 MAF, SAFC II and Z32 MAF, or Technosquare and Z32 MAF? I also would like know if it makes sense getting the Z32 MAF without the SAFC II or do I need a combination of the three? I know that the E-manage with be the best combined with the Z32 MAF but I want an easy setup as possible.
Old May 21, 2008 | 09:01 PM
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a safc is pretty pointless with out a wideband o2 sensor. your easiest setup is going to be a jwt ecu with a z32 maf. IMO the only real reason to get a jwt ecu is if you have a VI and get the extended rev limiter. Getting a Z32 maf without anything else is gonna cause your engine to run way lean which is dangerous. If you dont have a VI and dont plan on getting one, get a safc, wideband, and z32.

but mostly, if you arent boosted, a z32 maf isnt gonna do crap for power, its a waste.
personally I would get a VI before you look into these mods. then after you have that, do tuning with a afc and a wideband. then later down the road, possibly get the jwt for the extended rev limiter....then lastly maybe get the z32 maf with a turbo or sc setup.

hope that gives some insight.
Old May 22, 2008 | 06:31 AM
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http://forums.maxima.org/forumdispla...sprune=-1&f=38
http://forums.maxima.org/forumdispla...aysprune=&f=61
Old May 27, 2008 | 11:15 AM
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Originally Posted by black_maxed95
a safc is pretty pointless with out a wideband o2 sensor. your easiest setup is going to be a jwt ecu with a z32 maf. IMO the only real reason to get a jwt ecu is if you have a VI and get the extended rev limiter. Getting a Z32 maf without anything else is gonna cause your engine to run way lean which is dangerous. If you dont have a VI and dont plan on getting one, get a safc, wideband, and z32.

but mostly, if you arent boosted, a z32 maf isnt gonna do crap for power, its a waste.
personally I would get a VI before you look into these mods. then after you have that, do tuning with a afc and a wideband. then later down the road, possibly get the jwt for the extended rev limiter....then lastly maybe get the z32 maf with a turbo or sc setup.

hope that gives some insight.
So is the JWT chip better than the Technosquare?
Old May 27, 2008 | 11:20 AM
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I never tried the Tecnosquare ECU. All I can say is the JWT ECU is how do you say...conservative? I'm currently running the JWT Z32/SC/370cc/Raised rev limiter program now. Probably going to invest in EU sometime down the road.

I also agree, just running a Z32 with no VI or no boost seems sort of pointless.

S

Last edited by maximase86; May 27, 2008 at 11:22 AM.
Old May 27, 2008 | 11:39 AM
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Would it make a difference if the intake is ported and polished?
Old May 27, 2008 | 12:01 PM
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What are all your performance mods? Do you even have a ypipe yet?

What are you performance goals?

I say SAFCII+wideband O2 if you want a really simple setup, and it's future proof to accommodate any and all of your future modifications. Skip the Z32 MAF as the benefit vs cost/tuning/headaches on your NA Maxima isn't worth it IMO.

If you care about the raised revlimiter (and you should if you add a MEVI or 00VI) then go with JWT and be done with it. I believe Technosquare no longer offers the raised revlimiter. And if you go VI, then go with a VAFCII instead of the SAFCII if you care about controlling the activation point of the VI from the controller.

Or, if you have the time/knowledge and $$, go with the EU coupled with a good wideband O2 of your choice. Far from the easiest setup, but the best IMO.
Old May 27, 2008 | 12:05 PM
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Originally Posted by maximase86
I never tried the Tecnosquare ECU. All I can say is the JWT ECU is how do you say...conservative? I'm currently running the JWT Z32/SC/370cc/Raised rev limiter program now. Probably going to invest in EU sometime down the road.

I also agree, just running a Z32 with no VI or no boost seems sort of pointless.

S
I know the JWT ecu has a conservative Boosted setup but I think the NA setup is pretty decent.
I had a G Force ECU and a NA JWT ECU and the G Force had a better gain on the dyno, not much but slightly higher but it didnt have the raised rev limiter so at 6500 the power just fell.
Old May 27, 2008 | 12:08 PM
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Originally Posted by The Wizard
If you care about the raised revlimiter (and you should if you add a MEVI or 00VI) then go with JWT and be done with it. I believe Technosquare no longer offers the raised revlimiter.
Technosquare was only able to crack rev limiter on cetain ECUs.
Old May 27, 2008 | 12:30 PM
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Originally Posted by Flava_24/7
Technosquare was only able to crack rev limiter on cetain ECUs.
"was" is the key word here, right? Do you know? And do you know which ECU's they were able to get the raised revlimiter to work on? From what I've read here on the org, Technosquare no longer offers the raised revlimiter option.
Old May 27, 2008 | 12:42 PM
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Originally Posted by The Wizard
"was" is the key word here, right? Do you know? And do you know which ECU's they were able to get the raised revlimiter to work on? From what I've read here on the org, Technosquare no longer offers the raised revlimiter option.
I remember there being at least two people but not sure what years they were for.
I know one was Deezo,.
http://forums.maxima.org/showpost.ph...5&postcount=47

And yes, WAS is the key word.
http://forums.maxima.org/showpost.ph...7&postcount=48

I know I had wanted to send in my G Force ecu, but after they gave up on the raised rev limiter I went the JWT route.
Old May 27, 2008 | 07:15 PM
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how about a VAFCII or NEO with an Innovate LC-1/digital guage from dynotune? good enough for a mild N/A build? would it be hard to tune in "realtime" without a logger . thanks
Old May 27, 2008 | 09:07 PM
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Originally Posted by QNO_A32
how about a VAFCII or NEO with an Innovate LC-1/digital guage from dynotune? good enough for a mild N/A build? would it be hard to tune in "realtime" without a logger . thanks
dont know what you mean nut
1. VAFCII has more points for tuning i.e 24 vs 12 for the NEO or SAFCI or II.
2. If you really want to tune I recommend that you data log believe me. I am a solo bird and with just the gauge there is no way I would be able to tune "real time" without data logging. What I am saying is that I hook my laptop to the Zietronix WB (No gauge) then do a test run, what I have the info I can pull over to the side of the road then tune the car using the information much better than trying to look at the gauge while doing 3rd gear rolls @ about 95mph.
Old May 28, 2008 | 05:45 AM
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Originally Posted by The Wizard
What are all your performance mods? Do you even have a ypipe yet?

What are you performance goals?

I say SAFCII+wideband O2 if you want a really simple setup, and it's future proof to accommodate any and all of your future modifications. Skip the Z32 MAF as the benefit vs cost/tuning/headaches on your NA Maxima isn't worth it IMO.

If you care about the raised revlimiter (and you should if you add a MEVI or 00VI) then go with JWT and be done with it. I believe Technosquare no longer offers the raised revlimiter. And if you go VI, then go with a VAFCII instead of the SAFCII if you care about controlling the activation point of the VI from the controller.

Or, if you have the time/knowledge and $$, go with the EU coupled with a good wideband O2 of your choice. Far from the easiest setup, but the best IMO.
My performance mods are OBX headers and Y, Straight Pipe, Cat-back, CAI, NWP Spacers, ported and polished intake, and transmission cooler.

I also wanted the ecu to remove the speed limiter as well raise the rev-limiter. I am familiar with the mod to remover the speed limiter but I do not want the Check engine light on. What else can I expect to get out of the JWT ECU upgrade?

I am planning a remote mount turbo, but I wanted to see what I could do NA before I installed the turbo. I am also going to do the Suprastick mod.

Last edited by btbrown; May 28, 2008 at 05:48 AM.
Old May 28, 2008 | 07:03 AM
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Originally Posted by maxima92se
dont know what you mean nut
1. VAFCII has more points for tuning i.e 24 vs 12 for the NEO or SAFCI or II.
2. If you really want to tune I recommend that you data log believe me. I am a solo bird and with just the gauge there is no way I would be able to tune "real time" without data logging. What I am saying is that I hook my laptop to the Zietronix WB (No gauge) then do a test run, what I have the info I can pull over to the side of the road then tune the car using the information much better than trying to look at the gauge while doing 3rd gear rolls @ about 95mph.
Originally Posted by maxima92se
dont know what you mean nut
1. VAFCII has more points for tuning i.e 24 vs 12 for the NEO or SAFCI or II.
NEO has 16, and it has yet to be determined if the NEO can be 'manipulated' like the VAFC, if it can then the NEO wins out on the correction points game. (16x2 = 32) But no one has tried it yet.

FYI:
VAFCII = 24
NEO = 16
SAFCII= 12
SAFC = 8

The advantage that the SAFCII has over the VAFCII is the fact that it can compensate for a larger MAF. Something to think about if doing something 'mild'. Anything more than mild, and AFC's are not the way to go.
Old May 28, 2008 | 04:54 PM
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Originally Posted by maxima92se
dont know what you mean nut

joo callin me a nut???
haha just kidding i see that b is next to n on the keyboard

2. much better than trying to look at the gauge while doing 3rd gear rolls @ about 95mph.
but....could i do it this way if i had too. if i need the laptop i need the laptop...

anyone just do pulls n have a buddy watch or drive n you watch.

what about a video camera recording it(AFR and tach) hmmmmm let me stop before i go too far... i know that is truely ghetto but i just thought of it typing this LOL
Old Jun 2, 2008 | 03:13 PM
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No point in the Z32 until you're boosted. I only got it because after the turbo, we were maxed out on the stock MAF as it wouldn't read any more flow. With what you have, I don't think you're quite there yet. It's not going to result in more power. I had the emanage setup with the stock MAF at first with 370cc injectors and FMU. Then I went to 660cc injectors and the Z32 MAF. The only real benefit was a much cleaner A/F ratio. It didn't result in more power, not at a given boost level anyways.

Originally Posted by btbrown
My performance mods are OBX headers and Y, Straight Pipe, Cat-back, CAI, NWP Spacers, ported and polished intake, and transmission cooler.

I also wanted the ecu to remove the speed limiter as well raise the rev-limiter. I am familiar with the mod to remover the speed limiter but I do not want the Check engine light on. What else can I expect to get out of the JWT ECU upgrade?

I am planning a remote mount turbo, but I wanted to see what I could do NA before I installed the turbo. I am also going to do the Suprastick mod.
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