rjensen
8/13/2007 8:08:49 PM
chargedvette02
8/16/2007 12:32:57 PM
I looked at them and tried to help but I'm as lost as you are.
rjensen
8/16/2007 5:19:19 PM
quote:
ORIGINAL: chargedvette02
I looked at them and tried to help but I'm as lost as you are.
Hey, Luke!
Thanks for taking the time to check it out. Tell your girlie, I said she's got herself a Peach of a guy!
Oh, yeah, and with a B.A. Vette!
Take care. Stay safe.
blueshark
8/17/2007 6:29:56 PM
Lost as well...Sorry Rita, I bet Lee could tell you. So hows it run now and did you ever find out what the rattle was?
rjensen
8/17/2007 9:06:57 PM
quote:
ORIGINAL: blueshark
Lost as well...Sorry Rita, I bet Lee could tell you. So hows it run now and did you ever find out what the rattle was?
Hi, George!
The rattle went away (my mechanic said it was a belt) and since the tune, my vette seems a lot faster. Tonight, while out with my husband, I stepped on the gas a little too fast and hard and the car lunged forward. I mean it accellerated so much, so fast, my husband said, " Holy SH - -,

what the hell did you do!"



I just laughed.
Planning on getting back on a dyno meter, but thought I'd check with the Forum, too. This post has been up for a while, but I haven't heard from Lee or Dave01 and would never want to impose on them by emailing directly. I will be sure to post my results after my second dyno test.
Thanks for asking and I hope all is going well for you.
Rita
Lee Willis
8/18/2007 3:59:44 PM
Rita-
They are printouts of the actual ECM (Engine Control Computer) "maps" of settings for various combinations of RPM, throttle position, etc. That's most of what the ECM program is, just these tables that say, "when the engine is completly warmed up and at 3,000 RPM and the throttle is at 23/64ths open and the MAF is reading this much incoming air and no bad codes are coming from oxygen sensors and so forth: advance the ignition this much and spray this much fuel, etc. These tables have numbers for every combination of RPM, throttle, engine status (starting, cold, warm), etc. All the ECM does is, many times a second, is note the RPM, MAF reading, throttle position, etc., then use those numbers to look up the numbers it needs in the table, then interpret the numbers into signals it fires off to ignition and fuel injection controls.
Most "tuning" (re-programming) consists of just adjusting the numbers in these tables: changing how much fuel is sprayed, what the ignition advance is, etc., to maximize power given that the car now has some mods and will need different combinations of fuel and ignition. These printouts are records of what program is now in your computer, given to you as proof there is a non-stock program in there and as a record of what that program is, if you ever need another shop to make further adjustments or something happens and it has to be re-programmed (the shop you had do the work won't need them, theircomputer will keep a copy of your program electronically on disk).
rjensen
8/18/2007 5:14:33 PM
Lee,
Thank you so much for explaining these tables. I had no idea what to make of them . . . seems few people do. We are lucky to have you here in this Forum.
I greatly appreciate your time and expertise.