njoossens
August 3rd, 2010, 12:02 PM
I purchase my 2001 Corvette last year. Looked stock other than MSD wires and aftermarket shift knob. After working on it I have seen signs of previous modifications that were returned to stock. Looks like it had headers due to a broken header bolt we found while putting a new set of headers on. Also has no CAGS, previously had a shifter removed, had MSD plugs and iridium plugs, and a few other things. No big deal, just curious what it had before. After getting my EFI live I noticed a few things that make me think it has a partial tune. I am still VERY green to tuning, but the most glaring thing I saw was the Cat protection disabled. My current mods are air intake, long tube headers with cats, catback. Unsure if it is a stock thermostat or not. I went to the holden crazy site and did a comparison to my tune to the stock one for that year. Here are the differences. Please let me know if anything is glaringly bad.
Comparison summary: 08:52:02 pm, Tuesday Aug 03, 2010
Calibration comparison between 2001 Chevrolet Corvette Coupe Manual LS1 5.7 Litre (12593358).tun and 2001_Corvette_Stock.tun.
*Values that differ by more than 0.100000% are considered different.
B0701 "Catalytic Converter Protection Enable" N/A "CAL: Enable <-> ALT: Disable"
B5913 "Spark High-Octane Table" 10.4632 "Different from cell: 13,8 to cell: 28,24 inclusive."
B5914 "Spark Low-Octane Table" 10.4632 "Different from cell: 15,12 to cell: 28,24 inclusive."
B5919 "Optimal Timing" 11.1572 "Different from cell: 0,0 to cell: 14,19 inclusive."
B1901 "Max Allowed Engine Torque" 22.5788 "CAL: 474 <-> ALT: 866"
B6601 "Axle Torque Limiting" N/A "CAL: Enable <-> ALT: Disable"
B6614 "Max Torque By RPM" 32.1080 "Different from row 0 to row 20 inclusive."
D1001 "TCC Apply Speeds - Second Gear" -0.3891 "Different from cell: 3,0 to cell: 3,5 inclusive."
D0404 "CARS Vehicle Speed Enable" -5.0783 "CAL: 24 <-> ALT: 3"
D0405 "CARS Maximum Vehicle Speed Enable" -7.0315 "CAL: 31 <-> ALT: 2"
G0901 "Fan #1 Turn-on Temp" -15.6501 "CAL: 108 <-> ALT: 80"
G0902 "Fan #1 Turn-off Temp" -15.5416 "CAL: 104 <-> ALT: 76"
G0903 "Fan #1 Turn-on By A/C Temp" -0.1085 "CAL: 85 <-> ALT: 85"
G0913 "Fan #2 Turn-on Temp" -13.2407 "CAL: 113 <-> ALT: 89"
G0914 "Fan #2 Turn-off Temp" -13.8051 "CAL: 109 <-> ALT: 84"
Comparison summary: 08:52:02 pm, Tuesday Aug 03, 2010
Calibration comparison between 2001 Chevrolet Corvette Coupe Manual LS1 5.7 Litre (12593358).tun and 2001_Corvette_Stock.tun.
*Values that differ by more than 0.100000% are considered different.
B0701 "Catalytic Converter Protection Enable" N/A "CAL: Enable <-> ALT: Disable"
B5913 "Spark High-Octane Table" 10.4632 "Different from cell: 13,8 to cell: 28,24 inclusive."
B5914 "Spark Low-Octane Table" 10.4632 "Different from cell: 15,12 to cell: 28,24 inclusive."
B5919 "Optimal Timing" 11.1572 "Different from cell: 0,0 to cell: 14,19 inclusive."
B1901 "Max Allowed Engine Torque" 22.5788 "CAL: 474 <-> ALT: 866"
B6601 "Axle Torque Limiting" N/A "CAL: Enable <-> ALT: Disable"
B6614 "Max Torque By RPM" 32.1080 "Different from row 0 to row 20 inclusive."
D1001 "TCC Apply Speeds - Second Gear" -0.3891 "Different from cell: 3,0 to cell: 3,5 inclusive."
D0404 "CARS Vehicle Speed Enable" -5.0783 "CAL: 24 <-> ALT: 3"
D0405 "CARS Maximum Vehicle Speed Enable" -7.0315 "CAL: 31 <-> ALT: 2"
G0901 "Fan #1 Turn-on Temp" -15.6501 "CAL: 108 <-> ALT: 80"
G0902 "Fan #1 Turn-off Temp" -15.5416 "CAL: 104 <-> ALT: 76"
G0903 "Fan #1 Turn-on By A/C Temp" -0.1085 "CAL: 85 <-> ALT: 85"
G0913 "Fan #2 Turn-on Temp" -13.2407 "CAL: 113 <-> ALT: 89"
G0914 "Fan #2 Turn-off Temp" -13.8051 "CAL: 109 <-> ALT: 84"