@randy37 posted:Thanks David, I'm probably still a year away from firing mine as well...life just gets in the way you know. On a different note does Autotrend have a preference regarding ECU's? I believe you said you were using Holley Dominator. I was pretty set on using Holley H.P. and then someone with a lot of tuning experience told me the Motec M84 was superior for not much more money. If Autotrend is using Holley with success in an I.R. E.F.I. application on a Pantera that would give me some confidence.
Thanks, Randy
Randy, I hear you about life getting in the way! I went with the Holley Dominator because it was recommended by Autotrend EFI, who was setting up and tuning my system. The Holley has some capabilities I needed and others that I simply liked. I like the fact it has full functionality within the “box”. I have dual oxygen sensors, drive by wire, etc.; all without add on modules or boxes. At one time, Motec was the gold standard. It’s still very popular with racers because of it’s data logging capabilities and versatility but that’s about all I know. To be honest, all of the modern systems are good but it all comes down to software and tuning. I know Autotrend has experience with Motec, Bosch, FAST, DFI and even CIS but for street driven cars, Holley is their go-to system. They have a direct line into the programmers at Holley too, which helps. Everyone has particular tuning targets. I was looking for rock steady, low idle and no stumble or bog when I mashed the throttle at low RPMs. Another item that’s troublesome is drop throttle from high RPM. Frequently, engines will stumble before they go into idle but mine has no stumble at all. Frankly, it just feels like a high performance production car. That’s all I ever wanted but it’s taken me a long time to get there. My first system was a 4bbl style system with Ford EDIS ignition and an Accel DFI cpu. It did nothing well, that is, until the first time I pulled into Autotrend. There really is no substitute for having a pro do the tuning.