cpu upgrade...

has anyone seen or heard of this? found it surfing the web.
thought i could help us pull some more ponys out of our engines. maybe even help the supercharged guys remap the ecu!:_drool: granted it is pretty expensive.:eek:
any input would be greatly appreciated.

AEM Universal EMS ECU
[30-1900U]

http://www.genuineperformance.net/images/aemems.jpg

AEM Universal EMS ECU

The success of our Plug & Play EMS program created a demand for a universal unit, and AEM is proud to release its Universal Programmable EMS. AEM Universal Programmable Engine Management System adapts to any vehicle using the company flying lead wiring harness and sensors (sold separately). We are confident that this is the most versatile, powerful, and comprehensive universal engine management program available.

In addition the features found in our Plug & Play EMS, AEM Universal EMS also includes 10 independent, built-in peak & hold injector driver channels, direct drive ignition and dual wideband UEGO controllers. Peak & Hold injector drivers enable users to utilize low impedance injectors with a true 4/1 Peak & Hold injector drive circuit. The Direct Drive ignition feature allows users to drive a coil directly from the ECU without the need for an igniter or ignition module. A wideband UEGO controller is an essential tuning tool that provides a 0-5 signal for monitoring and tuning air/fuel ratios (AFR) on heavily modified high-performance engines.

Key features include:


Utilizes Windows software

Built-In Peak & Hold Injector Drivers

Built-In Direct Drive Ignition

Built-In Dual Wideband UEGO Controllers

10-Cylinder Sequential Fuel Injection

16 General Purpose Outputs

7 Definable Switch Inputs

Electronic Boost Control

Soft Cut Rev Limiters

Two-Step Launch Control

Fuel Table Automapping

Programmable Traction Control

Onboard 512kb Datalogger

Wet or Dry Nitrous Control

Definable Knock Control

Full Idle Control


$2,387.99

Look here... http://www.vehicross.info/forums/sho...&highlight=bow

AEM makes good stuff... but it's ENGINE MANAGEMENT... it's not a plug in and enjoy solution.

The only thing you get from a computer like this is the ability to program your engine computer yourself.

AEM is considered a BETTER product than a lot of what's on the market because they work with better quality sensors (which are not included with the computer) and they allow you to adjust more parameters.

OEMs program their computers for a good balance of fuel economy and power while leaving in tolerances for differences in altitude, fuel quality, temperature ranges etc.

cars sold in the US are programmed to run in the dead of the Alaskan winter or the heat of a Texas summer... Adding and programming an AEM computer on a vehcile with a stock engine, you wont see many gains, and if you do, you're likely reducing the OEM tolerance to various environmental factors.

If you rebuilt the engine and slapped a turbo on there, then the AEM (or similar product) would not only be beneficial but somewhat required to compensate for what you've added.

Keep in mind that to properly tune one of these yourself you'll need to use a dyno and have BOAT LOADS of experience, having someone else tune it for you usually runs about $500 on the low end.

popular tuner vehicles are cheaper, and you can get pre-mapped programs that work well. For instance I got a Cobb Tunning Access Port for my WRX which reprograms the factory computer, it was $600 and I could download programs from their website already setup for different modification configurations, that they did on someone else's WRX. I'm putting an LS1 in my 240sx and I can send out my factory computer and for $125 get it retuned to my specs since that's an even more popular platform. Since the VX market is small and the need for something like this is miniscule you're looking at 100% custom. You're probably looking at upward of $3000 after tuning, and that's if you can find a shop with an AWD dyno willing to tune for you (most shops wont tune car's they're not familiar with) and the end results wouldn't be all that impressive.

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You could totally build up the factory VX motor, though I'd be weary of the transmission and TOD system being able to handle much more than stock power, even the equivalent 5 speed and transfer case from the trooper isn't all that strong past stock power.

Honestly IMO if you want power you'd be better served swapping for a more developed platform.


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Engine management at it's core is really quite simple...
1. there are a f-ton of sensors that track pretty much everything, position of the pistons within the engine, the temperature of the air going into the engine, the pressure of the fuel in the lines, the oxygen level of the exhaust, etc.

2. all that data is compiled buy the computer and then it decides how much fuel to put into the cylinder...

that's pretty much it... it's a really fancy computer for measuring fuel. some also determine when to fire the spark plugs too, and REALLY fancy system have 2 settings for the valve timing and the computer determines if it should be one or the other...

there's lots of books on the subject if you want to read more, I've got a couple I've been looking into.

and if you're really into it you can even build your own engine management computer from scratch... look into a computer called "megasquirt" it's an open source engine management system and a lot of amateur race teams use it... really if you know what you're doing it can be quite competitive with systems made by companies like AEM... you can even buy pre-built megasquirt systems for a few hundred bucks...

Quote:

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Originally Posted by twistedsymphony

You could totally build up the factory VX motor, though I'd be weary of the transmission and TOD system being able to handle much more than stock power, even the equivalent 5 speed and transfer case from the trooper isn't all that strong past stock power.

Honestly IMO if you want power you'd be better served swapping for a more developed platform.

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ya.. our transmissions specs state the max torque for an engine mounted to it is 285 ft lbs.. stock is 230.. so not a whole lot of room to work with.. id say after a super charger, intake and exhaust.. you are gettin pretty close to that

I want to revisit this... :D

Any body know the type of comp, or name of the ecu for our trucks? I want to look for a tuner of some sort or some way to change the factory parameters, not replace it with an $1800 ecu from australia!

JET sells a mail order type tune but they don't offer anything to tune it yourself, so your basically stuck with the JET "chip" or going with a stand-alone like megasquirt, AEM, etc

I've got an email in to SCT and waiting for their reply. They have a program for testing new engine platforms with their tech and although the 6VE1 engine wasn't one they wanted to test I let them know there are plenty of people with these vehicles that want more power... We'll see if they even bother replying!

BUt, if JET sells a tune, then that means there is at least 1 company that has cracked the coding already and has a way to input new info over the ecu. That's a start.

Quote:

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Originally Posted by Bob Barker

BUt, if JET sells a tune, then that means there is at least 1 company that has cracked the coding already and has a way to input new info over the ecu. That's a start.

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http://www.vehicross.info/forums/sho...hlight=jet+ecu

http://www.vehicross.info/forums/sho...hlight=jet+ecu

Ya the JET upgrade or any like it are worthless but like you said John that means someone has the ability to tune it some how, but that doesn't mean they will sell the way to do it. I don't think there is a large enough customer base to make it worth it to them or any other company unless they charged a buttload.

I am hoping that SCT might respond with interest since there are a lot of Isuzu's out in the mud, and a lot of them looking for more power. I'm gonna be really pissed if they completely blow me off and don't bother writing back!

Send Ryan a PM on FS, he works for SCT, his screenname is Slow.

ooh, good idea.