fast self programing ecu

[EagleMark]

That's because no aftermarket company can match GM $ spent on development.

I've only had hands on one miricle EFI system, after months of tech support, i had it for a couple days, we were told there was something wrong with engine. Which we already checked and was not. Installed a GM system and ran fine...

[droptopstng]

great topic been wondering this myself

[IndyPaceCar]

We're working on running a FAST EZ-EFI Throttle Body with Delco ECM right now.
http://www.gearhead-efi.com/Fuel-Inj...king-on-it-%29

The conclusion was "there's nothing wrong - but it just won't work right"

[mekkis]

They run alright for the sort of guy who drops an out of the box carb on an engine with heads, cam, does no tuning and thinks it's great. Most of the time. Then you have interesting issues. The new FAST unit lets you set an advance curve, like a mechanical advance distributor. I'm pretty sure others do, too.

I'm not a fan of something that complex that you can't adjust ALL of the parameters manually. It's hard to give the motor what it likes when the sensors lie.

[steveo]

there's something to be said for software design which requires less parameters, and less detailed adjustment.

but the fact of the matter is that the average ecm doesnt have any real finite knowledge of parameters for which there are no sensors.

'responsiveness'. 'smoothness'. stuff like that.

these are things that are based on ignition timing and transitional fueling, which can't really be self-tuned.

for something that has a good balance, a noob-mode as well as in-depth parameters for the experienced tuner as well as a bit of self-tuning ability for air/fuel ratio both narrowband and wideband (if you feed it a good enough base bin), might i suggest a gm ecm with EBL? never used one, but looks like it covers all that.