Hi folks

I have just completed a new standalone system for another project and believe it should be easy to port it over to the Maxima with stock sensors ... except for MAP sensor, we can throw away the MAF! It will not be plug and play to start with. There will be a total of around 20 wires to solder or connect in. I wanted to gauge interest before embarking on this project. This will allow full standalone capabilities. I have proven this concept on another car and have backing from the company to do this project.

Please email me at turbo97se@comcast.net if you are interested.

Nigel

 

interesting...theres plenty desire(as evident from the 2-3 threads that popped up recently), but I think ultimately PRICE (as always) will play the final deciding factor.

 

Is this only for people who have purchased your kit?

 

yeah, is this only for people with the kit or can anyone get it? i may be interested if you plan on selling it on the regular but if its a one time deal then i dont think i will bother because i cant afford to takea risk on something i know nothing about. anyways, keep us updated as to how much it will be and such. good initiative

 

Yes, sorry. This is only for PFI customers only for right now. We would like PFI customers to enjoy this first just as they were able to enjoy the first turbo kits out there. Also it will be base tuned for PFI turbo kits. Custom Enterprises you are SOL since you bought our turbo kit and just copied it.

If there is not enough interest or the cost is considered too high, then I will scrap this project.

This system can control air/fuel/spark, nitrous, two-step (to build boost at a standstill), rpm switch, MEVI control switch, retard on knock (J&S type), boost controller with a GM solenoid, closed loop feedback wideband O2, EGT failsafe, just so many things I can't tell you all of them.

I have had some questions about the map sensor stuff. The engine management system will allow us 4th gens to get rid of our restrictive MAF sensor and replace it with a MAP sensor and an intake air temp sensor. You will not have to buy a Z32 MAF or anything like that. You can run high or low impedance injectors up to 1200 cc injectors and idle normally.

 

i hope you get enough buisness of this so it can get off the ground. even though i am not eligible to buy it i would love to hear about how successful it is. i think people have talked about it before but when i saw the zemulator come out for z32's i thought about getting it but then i thought to myself if ashley can make his own engine management then why cant i? who knows, maybe once i get to the level where i need it ill find a way to make it myself. anyways, good luck, and please give details if you can afford to.

 

Good luck with the standalone, I'd love to see how it works out. I'm glad to see someone thinking outside the box. Someday if it works out and you offer it to the rest of us, I may have to pick one up. The bandaids I'm using will only go so far.

And I know exactly how it feels to have Custom Enterprises rip off products and design and pass it off as their own (they even put "another new product brought to you by Custom Enterprise" for what they stole from me). What goes around comes around though.

 

Yes, I have managed to do this successfully on my IS300 which is quite a bit harder. I figured if I did that first, then I could do any car ... also the firmware for the the Nissans became available just recently so we can run stock sensors (no need for strange cam and crank setups).

I am going ahead with this regardless of the interest in it for my own car. I may decide to make it available for everyone later. I'll keep you posted.

 

if you do it Ill give you a dollar!

 

If the price is reasonable, I'd be interested, If you can get it to work on a 4g Max it shouldnt be too hard to get it to work on a 350z, so theirs another markt for ya. ( or vise versa )

 

I am very interested in a standalone system for my car. I have the emange, but i'm willing to sell it. Just say when u have it working right, and I would be first on the list to buy one.

 

Matt

You will be one of the first to get this (if you wish) I would like PFI customers to try this but I want people who also know what they're doing. I have looked at the 350Z a little as well as 2004+ Maximas but the drive by wire may pose an issue. There may be issues with traction control etc...

 

you have my full attention with my hand on my wallet

 

An update for the curious ...

My prototype standalone system has arrived! I started probing the crank and cam sensors over the weekend. All I can say is, "what a weird set up this is!"

We have 1 crank tooth per cam degree and the cam setup is the strangest I have ever seen! I can now understand why no one has ever been successful running the stock sensor components.

Getting this to sync up is going to be interesting. I am going to start fabricating the harness this coming weekend. Unfortunately, I am travelling next week. Hope to get this running in the next month or so, expect more news 3rd week of September.

 

Very interesting thread, I'm working on my maxima so it can be able to handle the futur FI, and turbo is appealing so keep us informed I think if you succeed in this project that mean more customers.

Cheers

AA

 

How's the AEM install coming along?
I'm curious to see how it turns out, I've debating going autronic mainly for "perks" like antilag through shifts

 

update .......update!!!!! its almost oct!

 

I have been working on this on and off.

Well, harness is ready, box is modded for Maxima, I just need to install the thing. I just got back from business last Friday and will be leaving for business again on Monday for 2 weeks. Hope to get some stuff together by Sunday. Once the box is installed physically, it will take me less than a week to get it to run hopefully.

Who said anything about AEM? I certainly didn't! Well, I guess the cat is out of the bag! Yes it is AEM. I'll take some pictures of some of the stuff I have done so far.

My IS300 runs great! I have been running this for about 3 months now. We'll see how well the Maxima one works.

 

Will this run off a windows style display on a lap top? real time?
I'm usto working with a FAST system and a Grand National (buick) engine.
I've got a 89 Maxima about to be under the boost of a stock GN turbo.
If a stand alone system is affordable I'm on it.
Scott.

 

Here's some light reading for you in the mean time:

http://www.is300.net/forums/showthread.php?t=219042.

 

Here's some pics of the one I made for the Maxima so far:


Box


Harness


3.5 Bar map sensor harness

 

Hey Nigel,

This is interesting. I have an AEM shop here in Jacksonville and I was going to start to talk to them about a engine management unit but it sounds like you are on top of it. Way to go I hope this all works out and if it does Im going to be all ove this like white on rice on a white paper plate in a snow storm.

Bruce

 

Bruce

We spoke to AEM more than a year ago about this and one for the Lexus IS300. Since they are not interested, I thought I would step up.

If you look up pricing on these (anywhere), they are not cheap. The Nissan applications start at $1600 street price ($2300 MRSP) for plug and plays. Being a custom application, this will definitely be more money than that. How many are interested now?

Don't forget though, that with the AEM, you can throw out:

1. emanage (or AFC)
2. Boost controller
3. 2-step (full boost at standstill - this function is sick!)
4. J&S knock/retard
5. RPM switch (for variable intakes)
6. MAF sensor (no more restrictions)
7. NOS window switches
8. Active feedback for wideband and EGT

This is why I picked the AEM. Other than the Motec stuff which is $4K, the AEM is the best unit out there period!

 

what if you have an aem already????? and we just need your parts to plug it up?

 

AEM is expensive.

 

when you think about it AEM really is'nt that expensive...
J&S = $500
e manege = $300
EBC = $300 ish
all the other great goodies = $?000
everything all on the same page in one little box 'o fun = priceless

 

Then sell it! The box itself needs to be modded. I am not going to modify a used box or even new box when I don't know its history. Who knows if it is good or bad!

 

Hi folks.

Here are some more pics of the harness. It is now complete. It looks a little intimidating at first, but it's really not that bad. Tomorrow night, I hope to start hooking it up.


Box and complete harness (bare)


Harness definitions


A little more palettable?

 

way to go nigel! it looks like a solid product. hopefully people can afford it so you can continue to bring us great products.

 

it doesnt look like that much of a headache

 

Hey thanks Nigel,

By the way the pics are slick, I cant wait to see how it all turns out. SO what exactly is the application for the aem unit made for?

Bruce

 

Cam stuff is posing an issue. Remember I said cam was weird. I don't know why Nissan did it the way they did, but it is a pain!

 

Run Forest Run!

 

???

Well, worst case would be to run batch fire injection instead of full sequential. Everything else should be fine. I am still scratching my head right now about how to keep SFI. I'll figure something out!

Oh if anyone knows of any stock sensor signal that "blips" once every cam revolution, let me know!

 

do you have a scope reading of the cam sensor? or just a visual? post a pic, and We'll ad any input we can about how to get a "start sequence" blip.

can you program a flash prom to ingnore 'x' amounts of signals until you get 'y' space between signals and then send a blip to the AEM. I know I'm talking about a complete secondary system, but it might work, hopefully it's not your only option. It might be more worth your time to include a new cam lobe. for the actuall parts, you could get five or so made for pretty cheap. If you need these made,... email or PM me.

Nate

 

I think the problem is solved. The R&D guy helping me is a genius! I just need to get back home to wire it up now! I'll post pics of the cam/crank for people those interested to see.

 

These are what our cam and crank signals look like. You may now know what I mean by strange.

In most cars set ups, there is a single "blip" once every cam revolution. This would make it easy to synchronize the engine management ... but nooooo! We not only have multiple "blips" but varying numbers of them too! We also have a super high resolution crank sensor 180 per crank revolution verses 12 or 36 on many jap cars and 60 on europeans. Why, oh why?

 

damn....that's nuts....hope you get it figured out man. good luck

 

Gimme Gimme Gimme!

 

Hi folks

This morning, I managed to get the AEM to sync. This is a major breakthrough and means that I can use all stock sensors ... I was concerned about this the most. Next steps will be to throw an oscilloscope back on to set up all the timing for coils and injection (easy, but time consuming stuff). After that, it is mostly a matter of tuning. Tuning for race is straightforward. Tuning for smooth silky driveability at all rpms and speeds may take some time. Well, the first major hurdle has been overcome! It should be down hill from here. Yay!