Contour Enthusiasts Group Archives Forums Modifications 3.0L Duratec Installing the GReddy eManage....help...comments

when you do get this together then will you be making theses moffset units to plug into the eManage ignition module... i say this cause i can solder wires but when it comes to doing chips and transistors i'm lost....

and hoping to see some signficant dyno plots thursday night/friday morning

I have some great news!

I finally gave up on trying to fine-tune the airflow map to get rid of my driveability issue, and started to tune the injector map.
This was scary, because even though I have wired it up, I wasn't sure it would work. Like the ignition system, I wired it the way I though it would work.

Well, it works!!
The best part of it is that I have made more positive results with power increase and getting rid of the stuttering issue than I have in two whole weeks of screwing with the AF map.
Basically, the GReddy will lengthen the injector pulse-width to add more fuel at up to 256 points.

Here's something else that I have found.

***The PCM does make some compensations for the Air flow signal from the MAF***
This means that no matter how I tuned, I still couldn't get the pcm to richen up enough to get rid of that stuttering issue.

The injectors don't seem to be compensated for at all other than the usual rich/lean condition with the O2 sensor.

So the verdict:
The MAF is an INPUT device and the pcm will make compensation for any sensor that is out of range, hence you only get so much adjustibility out of the MAF.
The injectors are an OUTPUT device and the pcm can't alter a signal going OUT. THe only thing that will happen if you go to far is running too rich.

I LOVE it, first because I wired it up right the first time, and second because it is actually working!

Now I recommend buying the GReddy just for this reason alone: More capability than the SAFC, almost all of the major functions of a stand alone system. And HALF the price!

Oh yes, I did figure out how to make the datalink cables as well. I broke the dealer's cable in the process (took me 3 hours to fix it ) and I got a schematic of the conversion circuit. I will be able to make and sell these cables and the ignition timing add-on piece.

I'm thinking that if everything works ok, I will sell the cables and the add-on ignition device for $100.00

Ok, that is enough until Friday night. I will try to bring home some nice dyno data for all the believers and unbelievers out there.

warmonger
(you can call me Tom!)

I must applaud what looks like a hard earned victory. You really seem to know what you were doing, I almost lost you in some of your posts...

Nice to know that if I have a partitis break-down, there is another viable option to the s-afc...

BTW, is there a link for this beauty? Half price, is that like 150$?

So, umm... I guess I should speak up for all of us who are down a couple of cylinders and a few cubes and ask, oh so sweetly...will this work for a Zetec???

Not half the price of an SAFC, half the price of the cheapest engine management system.
$300 for the basic GReddy, $350-$380 for the SAFC.
After that is only a little more money to get more power.

Basically, I am $400 and many hours of work into this device.
$400 is not bad at all when you get aiflow control and injector pulse-width control, and probably ignition timing control as well.

As far as the 4 cylinders, YES!!!!!!!!!
It will work just fine for you guys as well.
I think you four cylinder guys are going to have great results because your engines were never tuned "sporty" from the factory. I would like to set one up on a ZETEC and just play with it.
I know the ZETEC responds well to timing changes.

warmonger

Great, just when I think I can go without buying any more toys before SZ02, you have to figure this Greddy out. Dang you Tom!!! Now don't go fixing that ignition map crap or I'll really have to pound you! Grumble grumble grumble :p

Need lots of people to buy BNM stuff to pay for new Greddy Emanage...

I was driving away from work about a week ago and I saw a bright blue Skyline GT-R parked in front of a building; I slammed on the brakes and realized it's parked in front of the GReddy building. I never realized I'm right down the street from them. Now they have a black Skyline there now. Wish I had a digital Camera....

WarMonger - excellent work! Very tenacious. Hey, I posted in the "stuttering topic" and I was wondering if you could please take a look. TtYs!

Warmonger......You've sold me on the Greddy (the company should give you a commission ). In all seriousness, outstanding work!!

Any possibility on going commerical with the ignition "adapter" anytime soon?

Do you think it would work with a MSD DIS-4 setup?

I don't know if it would work with MSD ignition.

As far as I can tell, our stock ignition system has some hellacious energy anyway!

Speaking of the coils, Steve and I tried the first stab at adding on some mosfets to control the coils. It didn't work, but now we know why. It seems that we need higher voltage mosfets and some small modifications. It looks very favorable at this point. I should have it operational in about two weeks. I will keep you all posted, as this is the last part to solve before the unit is made fully operational.

Some thoughts on the unit. With a fast enough PC, I was able to trace the relevant cells that the GReddy used as the car was accelerated. You can do and acceleration run and trace all the cells that it hits. Then you can make small modifications to those cells and see/feel what changes take place. Trust me, it keeps you busy for hours! It also allows you to make changes to those cells in real-time, and updates them right after you type it.
The fuel injector pulsewidth part works very well. I tested it by increasing the pulse-width at idle by 100%, and as soon as I typed that in the cells it almost killed the engine. I quickly changed it back.

This product is great, and once I can adjust the spark timing then I think it will be awesome.

My main focus right now is to improve my low-end driveability issue. The trip to the dyno last week provided enough information to make a decision. I believe my exhaust is too big.
I am going to put the stock exhaust back on, then I will see if the problem goes away.
The problem is much more complicated than simply adding more fuel, as the PCM seems to keep the fuel curve "proportionate" at all times based upon its programming.
What does that mean? It means that the computer for our engines expects to get X amount of air at low RPM, and 2X amount at high rpm. In my case I'm allowing 2X amount of air at low rpm, and 3X amount of air at high rpm. Therefore the AF runs lean at low rpm.

There's some food for thought.

warmonger