b18crx

iTrader: (3)

like the title says im looking into using MAPECU for a few reasons and one of them being that its just a high option piggyback but also has options that most piggybacks dont offer, so if anybody has some input for me about why or why not to try this please let me know. thanks -mike

oh and incase nobody has heard of mapecu you can check out what it is and what it has to offer at mapecu.com

arghx

iTrader: (3)

uh this is a month late but I have used MAP ECU on a VR-4. I haven't used the new version but the older software was pretty clunky.

b18crx

iTrader: (3)

by "clunky" are you saying it was hard to use or what? please elaborate for me. thanks again for your input and help. -mike

arghx

iTrader: (3)

the datalogging was kind of hard to use compared to what I'm used to (Power FC, Megasquirt). On the VR-4 at least when you made any changes and wrote them the car would stumble pretty bad. There's not spark control on the original MAP ECU, which is a big problem for our cars given how they like to detonate (at least the turbo ones). Installation is more difficult than an SAFC, at least on the VR-4 it was.

Part of the problem I had is that the VR-4 uses a Karmann Vortex type MAF which is harder to tune with a typical piggyback than a hotwire type because they don't have a linear 0-5v airflow signal. The airflow is measured in hertz which doesn't respond the same way.

Either way, there is basically no point in getting a MAP ECU when you can get an Rtek 2.0, especially since you will have no basemap or support with the MAP ECU on an rx-7.