Forums/Z31P/z31-performance-upgrade-forums engine-management/How to use a Z32 ECU in a Z31 VG30ET with NIStune
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Rick88ss: (2010-11-28 03:02:55)
What are all of the parts that are needed to use a Z32 ECU with NIStune in a Z31 with a VG30ET?
I might go with a Z32 ECU with NIStune instead of my Microtech. I want something that has better product support and I'm only looking to make 400-450whp.
What other parts are needed besides these below?
-Z32 ECU (what year is best,TT or NA,5 Speed or Auto?)
-Z32 wiring harness
-Z32 igniter pack if not using smart coils with built-in igniters
-Z32 MAF or others that the VQ map is in Nistune (I'm using a PMAS HPX N1)
-Z32 CAS adapted to work in Z31 distributor
-Z32 TPS (fits z31 throttle body & possibly the same as the auto z31 TPS)
-Z32 CONSULT port plug (what other model use the same plug?)
-Z32 coolant temp sensor
-Z32 O2 sensor (left and right connected together)
-6 coils (gonna use LS2 D514A smart coils with adjusted dwell)
-Z32 Knock sensor (Not needed with NIStune)
Is it neccesary to run high impedence injectors with the Z32 ECU? I know it can be done with dropping resistors but I've read about problems when using them with low impedence injectors and the Z32 ecu.
Missing anything?
Rick88ss: (2010-12-09 03:27:58)
The Z32 primary coil has a resistance of 0.8-0.9 ohms.
I wanna use other coils,not the Z32 coils.
The Suzuki Hyabusa coils have a resistance of 1.3 ohms across the 2 terminals.
Will coils with a resistance of 1.3 ohms work or will it harm the Z32 ecu or ignitor?
These are the coils I'm talking about. They fit nicely and aren't too big.
http://cgi.ebay.com/ebaymotors/99-07-Ha … ccessories
hypcodiiihop: (2010-12-09 07:59:32)
you need to read a lot more, and I'm not about to spend time answering questions in here that are easily answered by searching. Its a valid question, but a LOT of the questions above can be answered with the search function so use it.
I'll also add the celica coils and RSX coils are ballin and affordable options.
Good luck.
Rick88ss: (2010-12-09 08:17:45)
what's the resistance of the Celica and RSX coils?
Careless: (2010-12-09 08:24:29)
gsxr and hayabusa coils are also small and may work well.
Rick88ss: (2010-12-09 08:31:29)
The main thing I need to know is if I have to match the resistance of the Z32 coils (0.8-0.9 ohms)
or is it OK if the new coil resistance is higher or lower?
Which one? Can it be higher or lower so I don't mess up the ecu or the ignitor?
Careless: (2010-12-09 08:58:53)
you could look at the FSM for those cars :-P
ryan85na87t: (2010-12-09 17:30:13)
I don't understand why everyone has to be so cryptic about everything. If people have the information readily available why not just share it.
Rick88ss: (2010-12-09 20:00:10)
That's what I'm sayin. Then don't post anything at all.
Bernardd: (2010-12-09 22:14:51)
- -(
Careless: (2010-12-09 23:15:04)
92gsr: (2011-05-17 09:32:36)
[archived image: GraveDigger1s.jpg]
I am mainly a lurker but my search for running a z32 ecu with a vg30e(t) keeps leading me to this post. It would be awesome if the posters who seem to have this information would share it or at least some links.
It does get annoying to come across posts in your search where people imply that they know where the answers are but will only respond with "search for it".
OK85ZX: (2011-05-17 13:51:52)
If you teach a man to fish…
Careless: (2011-05-17 13:59:36)
what codi and I were getting at was instead of asking what the hayabusa or gsxr coil resistance was on a Z31 board, one could use google and find that out on a hayabusa or gsxr board.
No one is witholding information. Bernardd may know what's involved in this setup but you can't rely on one person to get the job done for everyone else.
Honestly, go to the JY and pull everything from an N/A z32 to start. Anything you can get your hands on.
92gsr: (2011-05-17 15:12:35)
Thanks for the response. I've been digging all morning and I think I have what I need.
Bernardd: (2011-05-17 17:49:30)
`
Rick88ss: (2012-05-28 02:28:51)
Old post, I know but might go with the Z32 ECU with Nistune instead of the Microtech ECU.
Where's Bernard?
Careless: (2012-05-28 14:57:21)
i think he left.
Rick, here's some information on adapting the Z32 ecu to an RB25. It's not the same as what you're after- but you can find out certain information about how different signals on the Z32 ecu operate, such as the fuel temp sensor, and the tps and whatnot.
http://nistune.com/docs/Z32_ECU_Modific … n%20V6.pdf
akurtzer57: (2012-05-28 15:55:58)
I have a J30 that still have ecu, coils, ignititor, maf I cut the harness didn't think would ever need. If interested can make you package deal for very cheap.
Rick88ss: (2014-12-19 01:29:09)
again updating an old thread.
Back to the Z32 ecu.... I've been doing more research lately and acquiring parts to finally do the swap. For coils I'm going with LS2 coils. Nistune now has a feature pack to run flex fuel capabilities. One of the main things is whether to use a draw through Z32 MAF or HPX blow through MAF sensor in 2.5" intercooler pipe before the throttle body. What's the most power people have made with the Z32 MAF in a draw through setup like stock and single turbo?
Augustus Maximus: (2014-12-19 04:57:56)
You could go with the VE30DE ECU. It can do everything the Z32 can without the need for two 02 sensors. Runs the same CAS and coil packs etc. Supported by Nistune as well.
G-E: (2014-12-19 05:53:55)
Rick, how do you plan to run the cas for the z32?
Rick88ss: (2014-12-19 07:04:10)
Just like Satan did. But he went with AEM ecu back when he had the VG in his car. You take the sensor and slotted disk out of the stock Z32 CAS and fit it in the Z31 distributor.
As far as the MAF I'm most likely going with an HPX-N1 MAF in a 3" tube suck through setup before the turbo intake
Rick88ss: (2014-12-21 07:23:06)
Z32 CAS in Z31 distributor complete. Took awhile to do but not too hard. Just need a dremel with a cut off wheel and a grinder.
This shows the opening I had to cut out. I grinded off some of the actual sensor but it not necessary. That one was just used for fitting.
20141221_002017.jpg
20141220_195723.jpg
This is the spacer that the z31 disc sits on. I had to make the diameter smaller so it wouldn't hit the Z32 CAS. After on the left extra one on the right
20141221_001353.jpg
This is the top spacer/rotor mount for the z31. I cut it in half and reduced the diameter. I cut it in half since the distributor cap and rotor isn't needed and I'm gonna use the custom aluminum cap that I had made. After on the left, before on the right
20141221_001421.jpg
Z
Attached Files
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Rick88ss: (2014-12-21 07:46:21)
Parts used. Z32 CAS and disc.
dist parts.jpg
This shows the position of the Z32 disc mounted in the Z31 distributor at TDC in relation to the CAS. It rotates counter clockwise.I got this position by inserting the Z32 CAS in a Z32 engine when it was all lined up at TDC and marking the position of the disc. Hope it works.
dist TDC.jpg
clearance of Z31 lower disc mount that I grinded down so it wouldn't hit the sensor. Used one original mounting hole to secure the CAS and drilled one out (screw not in yet)
dist lower spacer clearance.jpg
Used 2 washers on main shaft on top of the bearing to get the proper height and a screw and small stud (seen in the back behind the shaft) and some washers to get the right height for the CAS.
20141221_002305.jpg
All done. Gonna see if it works by trying it out with the Microtech first.
20141221_001943.jpg
Z
Rick88ss: (2014-12-24 23:26:55)
It works!
I hooked up the newly modified z31 distributor with z32 CAS and changed the settings in the Microtech to read the Z32 cas , and it works fine. TDC mark from previous post was spot on.
Also ordered this MAF housing to use with the HPX-N1 MAF
20141229_142444.jpg
http://m.ebay.com/itm/251517090720?nav=SEARCH
Microtech going up for sale soon.
shromy: (2014-12-25 15:15:30)
Awesome! Why not just buy a base plate for the maf and have it welded into your existing piping?
Rick88ss: (2014-12-25 18:28:00)
Awesome! Why not just buy a base plate for the maf and have it welded into your existing piping?
Thought about it but I need to redo my intake anyway. Saves some time too.
shromy: (2014-12-25 20:47:08)
Fair enough. Excited to see the results.
Rick88ss: (2014-12-26 00:20:00)
Trying to find a good deal on LS2 D514A coils. Mixed reviews about the low price ebay coils. Seems like some sellers claim they are original GM or AC Delco coils but they're not. Waiting for a good deal on a used set of 8 original coils.
Butter: (2015-01-15 02:33:03)
So you already had MT on the car and running?
Seems like:
A.Downgrade
B.Waste of time
?
Axel kain: (2015-01-15 14:00:20)
you do realize you can get a precalibrated HPX for a Z32 spec MAF scale, right?
Rick88ss: (2015-01-15 16:16:28)
you do realize you can get a precalibrated HPX for a Z32 spec MAF scale, right?
Yeah I've seen it but haven't looked into the exact specs. It's probably more like a replacement instead of using an original Z32 maf which is said to be limited to around 500 whp and when using stock size z32 fuel injectors. I haven't bought it yet but so far I'm going with the HPX N1 that's good for over 700whp in a 3" MAF housing. It's in the Nistune drop down menu for MAF selection. Also going with 1000cc injectors.
les_joey_paul: (2015-01-15 18:53:50)
Loving this.
Axel kain: (2015-01-15 19:49:48)
so far the limits of MAF's have been rumors, and bad ideas. regardless. I cant remember the exact scale, but I do know it is individual to the Z32 spec. I have one on my car, and need to get tuned to see what it is capable of! As well as ZcarGo's once i get the dead spot at 2500 figured out…
I thought the HPX in a 3" tube was rated at 1000, or 1300 hp or something outrageous. either way, cant wait to hear how this goes!
Rick88ss: (2015-01-15 20:15:31)
On the PMAS-maf.com website it says that the HPX N1 is good for 830 whp in a 3" housing. More than plenty for me. Matt from Nistune has tried it on his R34 with an RB25DET neo engine and he said it works fine with a perfect idle and no drive ability issues. He tried it in a 3" housing mounted before the turbo in a draw through setup.
Rick88ss: (2015-02-01 00:08:04)
I had to redo my intake since I'm adding a MAF. Working on a cold air intake and also keep the hot radiator fan air away from the air filter. Here I made a template out of foam board. Then I'm gonna get it done in aluminum.
20150131_171235.jpg
20150131_171343.jpg
les_joey_paul: (2015-02-01 21:51:40)
If you cut the front of that air box out, and punch out the rubbery plastic material that is between the top of the radiator and front bumper support, you can accomplish functional cold air induction.
Rick88ss: (2015-02-01 22:42:11)
I still have to modify it some. I can also connect a tube from the passenger side headlight bucket. There's a cold air setup already for the factory airbox.
Rick88ss: (2015-02-06 05:03:24)
New parts for the new setup
Couldn't pass up the good deal.
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Rick88ss: (2015-02-07 23:45:04)
Installed the new ID 1000cc injectors. I'm gonna run them with the Microtech first to check for leaks and see how well they work.
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PulseCode: (2015-02-11 02:53:43)
Always a pleasure to see your work.
Rick88ss: (2015-02-11 12:12:40)
Thanks for the compliment. Slowly but surely.
Rick88ss: (2015-02-14 23:37:22)
Got the flange for the Z32 AAC valve welded on to my Z31 gutted manifold.
Before
20150211_160116.jpg
After
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Rick88ss: (2015-02-16 01:07:39)
AAC idle valve painted and mounted. No leaks from the new injectors and fuel lines. I also filled the fuel tank with about 8 gallons of 93 octane since the flex fuel setup with Nistune requires an initial tune with 93 octane. Then drain the tank and fill with E85 and retune .
20150215_160505.jpg
Axel kain: (2015-02-16 04:42:28)
I have to ask why you would mount it on the opposite side of the metered air piping? why not near the stock location so you can easily draw from the intake piping?
Rick88ss: (2015-02-16 05:13:27)
It won't fit in the stock z31 location. Right now it's not electrically hooked up and has 2 rubber plugs on the inlet. I need to connect the hose to the back port. (The one on the left with the black cap on it.)
20150215_160523.jpg
All I have to do is run a hose from the I/C pipe before the throttle body around the back of the engine to the Z32 idle valve. I already have some fittings welded to the intercooler pipe.
Axel kain: (2015-02-16 14:00:52)
similar to the old AAC valve I guess, fix up a hard pipe, and run it with a 1/8" too, for that vacuum hose there too.
FlawleZ: (2015-02-16 15:13:06)
Excited to see your results Rick…but I'm curious where you've read somewhere the Z32 MAF maxes at 500? I made 545 on a Z31 MAF and it still had room to go. I've seen upwards of 700+ on a Z32 MAF.
Rick88ss: (2015-02-16 15:41:22)
Excited to see your results Rick…but I'm curious where you've read somewhere the Z32 MAF maxes at 500? I made 545 on a Z31 MAF and it still had room to go. I've seen upwards of 700+ on a Z32 MAF.
I see conflicting results but usually in the 500's. I'm sure that the 700+ must have been with a Selin MAF translator that effectively doubles the MAF capacity on a dual intake Z32.
So to avoid maxing out the Z32 MAF and problems with reversion when you use a recirculating BOV, I'm just going with a PMAS HPX N-1 MAF.
Like the one in the new Nistune videos
https://www.youtube.com/watch?v=xVMJte7UOdA
https://www.youtube.com/watch?v=9HbmYcZj-bg
boosted300: (2015-03-06 03:07:08)
I still have to modify it some. I can also connect a tube from the passenger side headlight bucket. There's a cold air setup already for the factory airbox.
go with the setup I used to have bro....
It's a combo of what les and you are saying…
It's open in the front and it also has a hole in the side that draws from factory CAI location…
you should also move it off center as there is a hood seam that runs right down the middle of this area and /I used it to form a seal around the airbox so that when the hood is closed, it only draws external cold(er) air
[archived image: IMG_2369.jpg]
(look at my old ass HKS Intercooler from 1989 lol)
but back on topic, your fuel system is trick as hell, I can't wait to see how flex fuel works
les_joey_paul: (2015-03-06 03:28:33)
I get what you are saying but I'd try and do it on the other side.... because you have that hot radiator hose right there.
boosted300: (2015-03-06 03:41:33)
I get what you are saying but I'd try and do it on the other side.... because you have that hot radiator hose right there.
there's really not that much heat radiating from that small hose. I considered that initially and I held my hand near it at operating temp and you really couldn't feel much heat, certainly not enough to outweigh the cold air from the factory hole…but I suppose I could wrap the hose with heat shielding like I did with fuel lines…great tip!
(sorry for the threadjack Rick!)
les_joey_paul: (2015-03-06 03:57:10)
Yeah a few degree makes a difference it would only make more radiant heat at a stop. Me being in Florida that hose gets HOT with engine warmed up. I'm going to have to investigate further how the headlight bucket ducts into the intake area.
boosted300: (2015-03-06 04:07:17)
Yeah a few degree makes a difference it would only make more radiant heat at a stop. Me being in Florida that hose gets HOT with engine warmed up. I'm going to have to investigate further how the headlight bucket ducts into the intake area.
I feel ya…Rick and I are both in Miami[archived image: cool.png]
Rick88ss: (2015-03-06 04:12:07)
I'm gonna get it done in about 2 weeks. Waiting for income tax return.
les_joey_paul: (2015-03-06 04:27:58)
Ohhhhhh nice. Are you guys going to the auto combine meet on the 15th?
Also I think I might try creating a duct on the driver side headlight similar to yours boosted300.
ShamWow: (2015-03-06 13:28:55)
Ive been using that MAF for awhile with nistune and it works good.
Why the change from running microtech to nistune? I bought a haltech to go the opposite direction
Rick88ss: (2015-03-06 13:38:35)
Ive been using that MAF for awhile with nistune and it works good.
Why the change from running microtech to nistune? I bought a haltech to go the opposite direction
I want the flex fuel setup. Also I want a more stock like running car when idling and with the A/C running. It seems like the Microtech is better for racing and cars without A/C. It does work with the ac but not smooth. No flex fuel with Microtech and support sux
Rick88ss: (2015-04-13 01:01:42)
Update:
Finally got around to getting the air filter heat shield made. Also had a 1.5" tube welded on before the turbo inlet to recirculate the BOV since I'm using a HPX N1 MAF before the turbo.
I still need to paint the heat shield and make a hole in the side to direct some cold air in from the passenger side headlight bucket.
[archived image: 20150412_175800_zpsc0ulw3xa.jpg]
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G-E: (2015-04-13 02:30:50)
Now that is a tight squeeze!
les_joey_paul: (2015-04-13 03:26:35)
Dude. I love everything about your car.
Rick88ss: (2015-04-13 04:10:59)
Thanks. Came out better than I thought.
Now that is a tight squeeze!
That's what she said! LOL
The heat shield or the recirculating BOV?
mario88ss: (2015-05-31 14:34:30)
Looking good Rick !!!
La Fiebre
michaelp: (2015-06-08 17:39:52)
One of these days I'm going to try a Z32 ECU with the stock SOHC CAS. Looking at the FSM and wave forms, the output is identical from 84-04, SOHC or DOHC regardless of changes in sizes of the wheel/CAS.
V8srfun: (2015-06-21 13:37:15)
Did you consider a blow through z32 maf. They are definitely proven over 500 and work really well in a blow through setup. Plus with blow through your intake piping can be made much simpler
Car looks great you do good work
michaelp: (2015-06-23 12:15:22)
Did you consider a blow through z32 maf. They are definitely proven over 500 and work really well in a blow through setup. Plus with blow through your intake piping can be made much simpler
Car looks great you do good work
In draw through, they are more accurate and are proven, on this forum, to 700+whp by Felix…where the Z31 MAF has been proven to 545whp by Matt.
The HPX-N1 is a sweet MAF though.
TheAdrianDelgado: (2015-10-01 18:50:16)
One of these days I'm going to try a Z32 ECU with the stock SOHC CAS. Looking at the FSM and wave forms, the output is identical from 84-04, SOHC or DOHC regardless of changes in sizes of the wheel/CAS.
Did u ever try this? Truely curious on the results
Rick88ss: (2015-10-01 20:41:32)
Haven't had time but hopefully I'll work on it soon. I'm currently still running the Microtech ecu but I haven't driven the Z much lately.
michaelp: (2015-12-01 04:59:20)
I got the tach functioning with Z32 EFI. Not on a SOHC, but still of significance.