View Full Version : How many loggings before a perfect chip is burned?
10-29-2006, 01:26 AM
Just wanted to know an *average* of how many times people log data and re-burn (or burn new) chips before you get an IH SV-V8 GM TBI-EFI setup *dialed*?
Are you getting sick of my questions?
10-29-2006, 02:41 AM
No right answer...sorry.
Some guys bolt a stock 350 system on their 345 and never touch it.
others play with them quite a bit.
The fuel will be real close after 1 and near perfect(if there is such a thing) after 3.
Timing is up to the individual and the motor.
11-02-2006, 01:04 AM
Thanks, Bill. One to three *tuning sessions* sounds reasonable. I do not want to be fooling with it eight or nine times, though.
And I am thinking about going with a *full on* conversion when I do it; meaning TBI unit and DuraSpark-ed Holley *gold box* distributor w/ GM module for both fuel AND spark control from the ECM. The setup will also use an EGR solenoid to operate the stock EGR.
Any reason to start *small* and do fuel-only at first, then go with the spark control add-on?
11-02-2006, 02:41 AM
To do fuel only will require additional components so it's not worth it.
Just build it the way you want it from the start.
11-06-2006, 02:21 PM
Mine was so far off the chart it took a few chips just to get it to stop going "full lean" all of the time (and still running rich).
Once I got into the realm of adjustability, one or two chips got things pretty darn close.
I still need to adjust the cold-start routines a bit more.
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