I've been doing fine with the 6E and 8D tdfs (tunercat) and I'm now going to help a friend just change the fans and a few other basics on his ZR1- but the constants are really different from the 6E and 8D. And no I'm not trying to charge $$ for anything! I only drink his beer! Anyway-has anyone done any tuning with the AF that I could ask questions from? Or know where I could find definitions for it????? Thanks for any help!

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TunerCat does have a TDF for the AF. And DIY-EFI.ORG does have a bin for it also (based on my old foggy memory).

Most of they guys that work on ZR-1 proms do this for a living and probably won't be willing to share secrets. I can only reiterate the "basics" as I've never had any hands on experience with a ZR-1.

If you do decide to get the AF TDF from TunerCat, make sure you specify the year as there may be a second TDF (AFA) that may be for the later years.

 

There really isn't much to find.
Depending on the local gas, is about all you'll account for.
The ZR, and beginning with the LT stuff is really good.
It's the old if you want to feel faster add some timing/fuel, but the car won't be much faster. The exception again is what your local gas is like.
"N" ya need to be dead on reading plugs to double check yourself with that motor.

 

I have done some research and the ZR-1 does not use the AF.TDF (you are talking about the 5.7 DOHC engine aren't you)?

If it is the 5.7 DOHC engine, the 90-91s used the 1228331 ECM with the $8EA.TDF. The 92-95 5.7 DOHCs used the 16163993 ECM with the $D0.TDF.

Hope this helps.

 

Huh? I just double checked tunercats site-already bought the AF and AFA. Their site says thats the ones and they do work. Anyway-sorry, I should of clarified that I had already been looking at the bins for the ZR-1, and I know I'm by no means experienced at this stuff but-after woking up my own 6E bin the AF makes me feel like a FNG all over again! Lot of different tables. Anyone worked with this tdf before that I could pick your brains a little? Thanks.


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