I have a '97 Camaro SS LT1 6spd manual with a '94 computer. The car has p&p factory heads with larger valves, 7/16 roller rockers and of course supporting springs, push rods and such. I am running the 280 XFI cam. Headers that go to 3" Y pipe to 4" exhaust. Stock gears in rear.
I am tuning with Tunner Pro RT and VE Master. I use freescan for logging and winflash to upload bins. I also have EE Hack available. I have run it through VE about 10-15 times.
I have disabled the MAF in the tune and focusing on VE tables first. I drive the car about an hour to work and an hour back one day a week so I get good data with different driving conditions.
The problem I am having is it seams VE master keeps wanting to take fuel away and my fuel map keeps getting a bigger dip(not flat). I am worried I am doing something wrong or there is something I am not catching. The car seams to run better then when I started, better street manners. I attached my latest log(shortened so I can upload), the bin that the log was for, and pictures of graphed ve table. Can someone take a look and help me out? I can email full log file if needed(9mb).
One problem I have also noticed is if I sit at a light to long when I take of the motor stumbles like it's not getting fuel, then picks right up. This may happen once or twice ever 20 lights. It seams to recover quicker now. Maybe I have an issue with the motor I am not catching.
remember vemaster can only tune the ranges you actually drive in, you have to "guess" the rest by hand.
try my new trimalyzer tool, it can do some guessing for you.. but you still have to reshape by hand.
its normal to see ve drop like hell at low rpm and load ranges. stock cam is super efficient at low rpm, and the factory ve tables are pretty rich as it's only used as a failsafe on maf cars.
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