A $1000 for the ECU and tuning? Seems a bit steep.. no ? =\ There's a dealer in North jersey (hackensack?) that's listed on their site, as well... imma ask em what they charge.

 

Does this only control the A/F ratio and ignition timing, or does it have a provision to control the variable valve timing system also? I would think that if it could control the valve timing also we would see the most potential gains.

 

I took this right from the Racersgroup site:

"Does the Unichip only control timing and fuel?




*NO, The Unichip can also be used for the following functions:

*Change switch over points for variable cam timing control (VTEC, VVT, etc.)

*Electronic boost control

*Water injection

*Override speed limiter

*Drive additional injectors

*Raise your rev limiter

*Achieve progressive nitrous control with retarded timing

*Provide launch control on turbo-charged applications

*Replace mechanical ignition system with mapped ignition

*Optimize timing and fuel map settings

*Easily re-programmable

*Real time tuning via laptop"

This can do everything any aftermarket ECU can due, but it will be specifically tuned to the car it's on. Not one size fits all. It's easily removable as well and can be transferred to another car so it has long term potential, you would only have to reprogram it. I have personally seen big gains with this unit and as soon as I decide what exhaust to go with when I get back from vacation, this is going on my car.

 

Plus they give you a 3 month full money back warranty. What other performance part gives you that? They even give you back the dyno tune time money. To have faith in your product like that it must be good.

 

At part throttle the ECU reads the O2 sensor and will overide whatever the UNICHIP is trying to do in the way of fueling, driving it back to stociometric (14.7). At some point approaching WOT (80%?) the system goes open loop and richens up the mixture. It is this area where the UNICHIP will be able to override the base ECU programing. However, for functions other than fueling (spark, cam timing) the UNICHIP should be able to modifiy the maps throughout the load-speed range. However, the knock sensor will probably still retard the spark if you try to add too much advance for the speed/load point and octane you are running.

 

The Dastek has been used successfully in cars with learning ECU's for a while now, the Z isn't the first and only car out there with one.

You can use the Dastek to make the ECU "see" whatever you want. You can give it whatever reading you want, even from your O2 sensors.

 

Does anyone know the size of the fuel/ignition maps this unit has? Or does it only use however many the ECU has?

What would be the advantage of this system over a Greddy e-manage/e-01 setup and dyno tuning?

JD

 

The main issue with the Unichip, and many other piggybacks on an OBDII car is the issue Jeff described on the first page...inconsistent performance after the ecu realizes what is going on. These were a very hot mod for the WRX for awhile..till everyone realized the car was quick one day, a dog the next.

The other main issue is the fact that this is not user programmable....can get very expensive very quickly as mods are made.

However, we will have an elegant (and very advanced) solution in the coming months on our project Z