Gunni wrote:Without beeing harsh there is more to standalones then just fuel and ignition.
Piggyback will never releave standalones completely.
It´s all about the needs of the vehicle owner if a standalone is required or if a piggyback, chip or remap is needed.
Not only is it fuelling and timing, but advanced idle control, flatshift, launch control, traction control, boost control, knock detection and closed loop control, wideband fuel control, specific types of injectors operations, other ignition setups such as wasted spark, coil on plug, injection timing control, vanos control, other variable valve controls, valvetronic operations.. and that´s just scratching the surface.
Not taking anything away from this or other advanced piggybacks.
Also if there was a Alpha-n conversion before I´d rip that thing out and sell it and run the piggyback only.
No need to complicate things with more stuff to brake.
I understand all of that dude, and maybe on something like this you would have got better results with a stand alone, but listen here... I doubt it very much!
Almost all of the operations and controls you list for the stand alone is actually features of the new Uni-Q unichip which actually puts most stand alone systems to shame!!
Also, the way new vehicles are going, like the ECU incorerating things like wiper and headlight control, you need the original ECU to actually make the car "work" so a Stand alone in these cases can be a VERY expensive way to go.
We are talking about road cars here. If you are building an out and out racer, then obviously a Stand alone is the way to go and the "lights and wiper" issues would not be as much of an issue.
Also, as most of these conversions have Alpha N installed and most die hard E30 M3 owners like to play with thir fueling, then why not leave it there and just have the Uni-Q to map the ignition. It saves the owner money and alows them to still play with the fueling to thier hearts content. But personally, I would rip out the Alpha N and fit the Uni-Q.
The other thing I have to say is with every Alpha N E30 M3 I have mapped, there has always been issues with pinking/detonation. All you can do is make the mixture richer or leaner to stop the pinking. This ofcoarse loses valuable power and as Sal saw while tuning the M3 at his place this week, BIG gains are to be had from mapping the ignition timing. There are shite loads of E30 M3's out there with poor ignition maps, and they are by far a long way off being optimised. The Uni-Q gives this back to mappers and is by far the easiest way to fo compared to a Stand alone.
On top of nearly all the features you list, I know of no other stand alone which gives you 5 completely different maps you can select from a switch on the dashboard. 5 maps as in litterally having the same as 5 Unichips / stand alone ECU's fitted. It really is the dogs danglies. It can also turn on cooling fans, intercooler fans, water injection, nitrous, operate water spray on intercooler, launch control, full throttle gearchanges, shift lights, convert MAF, AFM, to MAP or TPS, data log, etc...