piggy back ECUs
Discussion
OK gents
who has had any expierence of these things then, from my quick googling it seems that they've come on somewhat so much so you wonder why you'd bother with fitting an aftermarket unit
considering a Unichip for a project does anyone have any other candinates I should be be looking at or pitfalls?
who has had any expierence of these things then, from my quick googling it seems that they've come on somewhat so much so you wonder why you'd bother with fitting an aftermarket unit
considering a Unichip for a project does anyone have any other candinates I should be be looking at or pitfalls?
What is the actual application ?
Early unichips had locked software I thought and must be tuned on a dyno ?
Not sure if the more modern stuff is the same.
And many just bluff sensor inputs to achieve their ends. But there are others that will actually take control of the injectors, which should have obvious control benefits.
And then some may only be able to retard timing, not advance.
Ive looked into a lot of them, but always came to the conclusion full standalone suited best.
And many stand alone units can be piggybacked too for full control over fuel and timing, yet letting the factory ecu do some other stuff.
Early unichips had locked software I thought and must be tuned on a dyno ?
Not sure if the more modern stuff is the same.
And many just bluff sensor inputs to achieve their ends. But there are others that will actually take control of the injectors, which should have obvious control benefits.
And then some may only be able to retard timing, not advance.
Ive looked into a lot of them, but always came to the conclusion full standalone suited best.
And many stand alone units can be piggybacked too for full control over fuel and timing, yet letting the factory ecu do some other stuff.
Marf said:
Greddy E-Manage is very well specced for the price.
Out of interest, why not a full standalone?
I can very much see the appeal of a piggyback. Cold start, OEM emissions, idle etc etc will all be as per a factory car. That is very worthwhile.Out of interest, why not a full standalone?
Plus if there is proper support in terms of wiring, then a piggyback can be an easy and cheap option, and a very effective one.
But of course they are limited in what they can do, they can cause the OEM unit to throw faults, and from research I done when I considered some, technical support is lacking for most versions.
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