not to burst bubble but AEM is making a universal EMS as stated in new SCC mag. Says it will install on almost anything that runs on gas.

 

Bubble is not burst at all. The universal has been around for a long time only people never knew it! wiring the car up is one thing. Getting it to sync reliably on stock sensors is quite another .

I am done with the sync, now I just need to map. I have had a lot of noise issues causing cam and crank signals to fail intermittently. I just got back home yesterday. I have 3 projects going on right now and this is 2nd priority. It has been a bad year for me for travel. I started this project in September!

 

just a shot in the dark but there's some reports of excessive crank sensor noise on the 350z forums... a bunch of TT/SC guys are replacing the stock wire with a shielded one

Crank Angle Sensor signal intergrity

Crank/Cam angle sensor wire fix: GB Interest list only

 

honestly, whats the difference between the universal AEM and your modified AEM? and when you are done are you going to have the sync and base maps available to every one who has the AEM, or only specificly for your customers?

 

the z guys say that AEM told them that this is a big signal problem...........

quote from that Z thread:


OK guys I just spend an hour on the phone with my friend who is a very experienced EE who also does engine management wiring for vehicles and what not.

I am going to use a different cable than APS does... hes got some mil-spec shielded stuff that he uses for all the crank triggers in the cars he does Motec in... He told me it is more effective to ground the shielding and im gonna go over there and he is gonna show me how to ground it... and we can just ground it to the mounting bolt for the sensor itself.

He said that stock wiring harness' are sometimes pretty crappy and for important stuff like this its not uncommon to get lots of interferance... he said its a very easy and inexpensive fix. I guess a lot of it can have to do with what exactly you are wiring into the car also... he suggested that the fact that APS is running the crank signal wire into the Unichip for timing changes alone could be the problem... and that it doesnt mean a stock 350z or one that has unchanged factory crank trigger wiring would have this problem... but its also not unlikely that they do.

He told me it would be easy for me to setup on of these cars on his scope so we could see it first hand... we may or may not do this. Its going to be inexpensive and I guess I will just put it together for you guys to make you lives easier, to help everyone get to know me, and just as a precaution for everyone. There is no promise this will save your engine, but I will make sure the product does what it is supposed to do.

Now we just need to wait for me to get the plugs here. THe rest is easy street.


__________________

 

Noise has been a serious issue before. I have it solved now. The AEM box I modified IS different from the universal. What the differences are, I cannot say. My basemaps will only work on these boxes. Don't you think I should be able to earn a little bit for the R&D I put into this?

 

For sure! This will be awesome for those who are serious about their power!

 

yeah i hear you. get it done so i can be the first to buy

 

did you know that there was a universal AEM before you modded the box

 

From what I know the universal box would not work wih the Nissan the VQ based on the timing signals used. Nigel?

 

Did you ever get the AEM/Standalone to work? If so... r u selling it? I am very interested. What will be needed to secure or help you with this?

Your PM is full.

 

Any Update ???

 

hhmm read over the whole thread and this is very intersting, let us know how you are doing please adnwhat your progression is. Thank you, for helping move the maxima community one step forward.

 

!!!!?!?????

 

You guys do NOT want this for a street car.

It would be AWESOME for a race/track car that spends most, if not all, its time at WOT, however for daily driver duties, I'll take the OEM+piggy back anyday.

Not knocking Nigels' effort, because I'd love to see this happen. Just stating that for MOST, this will be more headache then it's worth.

 

I wouldn't write it off as track only though, there are plenty daily driver guys that could benefit from it...full control is unbeatable! but I do agree that if your setup doesn't justify the price for the AEM, just stick the cheaper, but reliable JWT, AFC and Emanage. though if the AEM is properly tested and then properly installed and setup for the VQ, why not? I've set one up on a daily 99 Si flawlessly with no issues. there are some very minor issues and bugs here and there. its a little more involved and tedious than an Emanage install, but its pretty straight forward. but judging by how there have been no updates, it'll be interesting if this still comes to something....

 

Without the base maps from AEM, Motec, HKS, etc. or a large aftermarket following/resource like Honduhs, Mitsus, SR/RBs have, it's too time/cost intensive. Setting up a standalone for WOT isn't difficult, but cold/hot starts, on/off boost during closed-loop, etc. would require more then most here would ever care to wring out. If more standalones besides HKS start building a VQ35 market, then maybe we could catch a break.

The intro price of the unit is peanuts compared to what you'll spend to work the maps out from scratch or damage by not knowing what you're doing.

With the 300-400+whp piggyback options currently available and even more featured units coming soon that easily handle <500whp setups, the hassle to benefit ratio of a standalone to push 500+whp isn't worthwhile IMHO.

 

OK ... after many months of travelling and working through issues. I am pretty much done. Fired up the Maxima today. It idles kind of rough and threw a bunch of check engine light codes. I haven't looked them all up yet. Hope to get some videos up of it starting and driving. I'll shoot a vid of it starting at least ... driving won't be until I get the map done. One thing I wanted to check with you guys. The FSM says stock idle should be 15 degrees advance. I never did get 15 degrees. It was more like 30 degrees, even when I followed the FSM instructions. Can anyone confirm? Am I looking at the right marks? It should go 0 degrees then 15 degrees going clockwise right?

 

about time!!!! cant wait

 

maybe me and some of the other colorado max's can come up and see it one day

 

Hey,I'm down in Orlando I'll see what I can do to help out..whatever you need. A gennie pig or whatever.

 

Yes, making some good progress ... finally. no one able to answer my question on the timing? I have been logging/scoping what the stock timing is throughout the rpm /load range and it is some pretty funky ignition timing compared to what I have observed on other cars. My purpose of doing this is to get it to drive like stock (or as close as possible). My IS300 drives like stock only with a slight hesitation when cruising at 1600 rpm, so I know it can be done!

I have gotten the injector advance table done and working now on the timing tables to mimick stock, after that it is fuel time, that is the easiest. my car is a mess with wires, scope, AEM, laptop etc ...

 

Good to hear you're back on the game Nigel,LOL!

 

Looks like your doing some good work here, congrats!

I'm looking into running a standalone on my VQ and would like to talk to you about some things. Do you check your PM's?

thanks,
allen

 

Well it has been a busy year and a half for me and I have been busy with other projects too. I had a wild hair up my a$$ to get this done over the weekend. I bet most people had given up on this but I intend to make it happen and SOON! I am learning a lot with this one! It is totally grounds up. My last AEM project was 85% grounds up (I could use about 15%), this one is 100% from nothing!

 

Ok I am done. Can someone host a 25MB video file for me? I have video of it running now. Still needs a bit of tuning but it starts on its own ... well injector 4 from the AEM is giving me an issue so I am running injector 4 from stock ECU but every thing else fuel, spark is run from AEM.

 

I know you wrote this a long time ago but ... I agree and disagree with you on this one. If you understand maps and I now understand a lot more than i used to from this effort, the driveability on part throttle and full throttle is as good as stock. I invite anyone that lives close to me to visit with me and I will show you where I have it running. I am running rather conservative timing at the top end so it does not pull quite as hard as stock on the high RPM/boost mapping but is is smooth as silk throughout on full and part throttle and even cruise. It took me two weeks to get the timing and the starting to where I want it to be. I have not calibrated the temp sensor for cold starts yet but the way the AEM works, it doesn't matter cos if it is cold, you blip the throttle and it will start. So i completely disagree with you on the driveability. As for who should use this, You can do pretty well with piggy backs to about 400 to 450 HP, after that, I recommend a standalone. 4th gen maximas are a little more foregiving on CELs and timing etc ... newer cars throw codes and pull timing etc .. (on other cars don't know about Maximas).

 

That statement was based off my VERY very limited experience with an Electromotive Tec-II. Standalones have improved leaps and bounds in becoming more user friendly since then and the AEM sounds very refined from my limited reading. However, until a few more follow in your footsteps, I still stand by what I said about driveability. You have done what few here would. Just look at all the JWT ECU "issue" posts and I can only imagine what chaos most of these people would be in creating maps from scratch.

People are pushing the Greddy eManage blues to 500-600+whp on VQ35s and the new EU version will allow even further without sacrificing driveability much. So, still IMHO, a standalone is not worth the effort, cost, risk, or time to eek out every last whp possible when these latest piggybacks can do pretty much everything the majority of owners need simply and inexpensively.

MANY many props to you though for pioneering this and showing what can be done with enough drive/determination. I hope I'm wrong and MANY others follow in your footsteps, so we can build a knowledge base like other brands have thanks to you.

 

Here is a link to a video (20MB). https://home.comcast.net/~turbo97se/HPIM0646.MPG My camera only allows me to record 1 min of video for some reason. This one shows me winding it up to 7300 rpm or so... what can the JWT ECU do ... I am not sure ... this is the only real easy visible proof I have it up and running I have another one with me starting it also but no space to host it. Now all the injectors are running. Actually, it was injector 5 output from the AEM that was not functioning, I just repinned the harness to injector 7 output and set it up to run like injector 5 should. It's nice to have up to 10 injector outputs!

A standalone has many advantages over stock ECU and emanage. You can
1. Run what ever size of injector you want ... 740 cc, 1000 cc
2. No Rev limiter (though I wouldn't recommend going much above 7500 rpm anyway.
3. Set up the timing to whatever you want to no limits there!
4. 2 step functionality - anti-lag
5. separate NOS map
6. Can control Shift light and variable intake manifold switch point
7. built in boost controller
8. Knock retard
9. Closed loop tuning functionality

hmmm ... maybe I have mentioned all this before, I'll not go on. I just like FULL control! I don't want an ECU to dictate everything!

Here is a picture of some wiring. It is a jumper board that allows me to switch between stock ignition/injectors and AEM controled ignition and injectors.



Here is the AEM box in my car

 

love the picks wiring an engine has to be so much fun

and i have the exact same harbor frieght ad sitting on my computer desk

 

OK, it's all done! I have driven it to full boost and it drives great! Injectors, ignition being fully controlled by the AEM! I need to get the starting enrichments just right though. It will start but needs a blip of the throttle to start ... not a huge deal really .. I just don't want to move my foot!

 

awsome. You should sell the wiring skematic to AEM and make some money.

 

so whats the price??????????!!!!!!!

 

I have decided not to sell this. To be quite honest, there aren't many 4th gen Maxima owners that would want to invest in an AEM box. Even the cheapest boxes go for $1300 minimum. This would not be less than that. I am looking into an alternative that is dedicated more to 6 cylinder engines AND is much cheaper while maintaining nearly all the functionality of the AEM.

I recently realized that I have been away from these boards for too long ... people swapping in 00VI and VQ35DEs wow ... things have changed! I kind of lost interest cos you can only push the Max just so far before you ned to invest serious $$$. But with much more available for VQ35DE, I may be interested again! I had always thought the VQ35DE was weak ... people have proven me wrong! Long live Nissan!

 

turbo97SE,
I sent you an email about your setup (your PM box is full). Please reply when you get a chance!

thanks,
allen

 

You did? Sorry, I don't think I got it. What is your email?

 

my email is turbosforsale@hotmail.com

I sent it a couple days ago. I'm interested in some fuel and timing map information, I'm getting ready to set up my standalone on my VQ35.

allen

 

Nigel,

I lost your number since we last talked, can you please give me a ring.

Matt

 

hi folks

I have found a way to secure my settings (3 levels of security). If you try to use the cal on other boxes, you will have a 3000 rpm rev-limiter. The box mods are not easy to reverse engineer.

Matt, I sent u PM with my number

 

I would love something like this for NA ,i have no control over my ecu at all and it sucks.
I want total timing rev limit and fuel control but with the ability to be a good daily driver setup.