[bigmike32172]

Originally Posted by phunk

the dyno doesnt care why the A/F is what it is, it just displays what its sensor is picking up but it doesnt use the information for anything other than to show you the readings... it doesnt apply to the actual power readings in anyway. if you dynoed on a day that was very different in temp/humidity and the car ran different, your cars power output would change and the dyno would translate it accordingly, just the same.

altitude plays a huge part, but the dynojet software doesnt care about altitude. you can set it to the moon and it wont change anything, i dont even know why they have that setting in there... i even asked once and the dynojet rep told me it has no effect on anything.

if you thru in some higher octane gas its very possible that your PCM would eventually try adding in a little timing. I am not extremely familiar with viper PCM trivia... i dont know how aggressive it is. I know that my Z (on stock ECU) has an extremely aggressive knock feedback system and it will constantly try and add more timing and then back it off under ping. its more than likely that if you ran a few tanks of higher octane that the PCM would eventually throw in a little more timing (but you would need to ask someone in "the know" about the viper PCM), and you might see a couple ponies from that... but if you dont run the car on the gas all the time, whats the point.. ya know.

I heard that either the 97 or 98 was the last year for no knock sensors