Why cant someone make a setup that is 100% foolproof??
There are plenty of stock turbocharched cars and they never have these issues. Is it because their ecus are adaptable?

I dont like the idea of a set fuel map. IMO the ecu should be constantly regulating fuel based on the air quality, density and other possible variables, cant this be done by adjusting fuel flow based on info from the mass airflow sensor?

I guess my question is how do stock FI applications come out so reliable and why cant we duplicate this reliability for aftermarket apps? Could someone answer this for me?

I really want to go FI but wont until something trustworthy comes out. Who wants to trive their car around worrying all the time about whether the engine is going to blow or not.
I want FI that I can install and forget about. Is this possible?

 

Finally, someone else states what I have been saying over and over again! I was wondering if I was the only person worried about installing a FI system and then blowing up their car.

 

They're also running much lower compression and have ECUs that see positive pressure

No. MAF sensor can only see so much air. It doesnt know you are supercharged. Therefore during WOT, your ECU is sending the same amount of fuel as it always would

Lower compression, boost ready ECUs. How can we duplicate this reliability? Stand alone systems (AEM makes a good one)/lower compression

You take this risk with any car you supercharger/turbocharge.
High performance car = high maintenance car
Be expected to keep an eye on your car as if it were on fire. If you don't like this, stay stock

 

thanks for the answers PT.

Zland... My z is a daily driver I need it to be reliable!!!

 

joust75:

I just noticed you live right down the street from me. My Z is my daily driver as well. It will be interesting to see which way both of us go.

Jeff

 

Yup! hope to see you at the next sd meet!!

 

It seems good solutions for the ATI fuel setup are starting to
show up. Here's what's been posted so far:

1. Do what ZED did. Get PE 380 injectors and use the TS ECU to
drive it. Delete the ATI fuel pump and Aeromotive DFMU. Cost is
$900 for injectors, $600 for ecu, $? installation charge.

2. Do what Skidazzle did. Use the ATI pump and FMU and add
the Apex SAFC 2 to do fine tuning. The english manual is online
and it seems to do that and more. Very nice. Basically, tune
fmu first, then fine tune with safc 2. Cost is ~$290-330 for safc2
$? installation charge, and more tuning charges.

The safc 2 solution is attractive because it's cheap and you can
tweak it if you change your setup without another ecu reflash...
The ts ecu is more "pre-tuned" if you have a common setup.

If there's a group deal going on somewhere then I'll probably
get the safc (not in too much of a hurry as I'm upgrading other
parts for now)...

what do you guys think of my understandings...

rob

 

just for your notes....

when setting the dfmu, i used settings like dr bonz, and others, but added a bit more due to the higher boost level..

the first pull on the dyno, and my a/f was floored at 10 from 3K to redline... it might have even been lower, but 10 was the lowest on the graph...

after leaning out some with the afc2, i am sitting right under 12 for the same range

 

Seems that with the SAFC2 we can fine tune and get a good A/F ratio under load.