I have a 2000 T/A, stock everything except lid, subframe connectors, exhaust cutout and tb bypass. I'm running in SD mode because I don't want to tear the engine apart bc I want to see how well I can do with a stocker engine/tranny on just a tune (want to run a 12.5 with it).
Anyway, the car is going to see some highway miles in the weeks to come and I wanted to share some ideas about the VE table and how to tune the car for versatility under changing elevation/DA conditions. I know this is why the factory put the MAF in there in the first place, but it seemed to me like with a little thought in the right place I could make a versatile VE curve that would work from about 7500 DA to sea level.
Right now, it shouldn't typically be higher than about 1000 or 1500 ft so I know she's going to run lean when I take her down to houston - so my tune is a little rich and I plan on it staying that way. My idea was that, going up to Lubbock to see my family, where elevation is about 5500 ft and DA might occasionally hit 7500 the car would probably run rich and lean itself out with the STFT's. This sound about right? How much of a difference should it make on a SD car what the current DA is?
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Originally Posted by WS6FirebirdTA00
