At idle, I'm pulling 20" HG on datamaster. At WOT, I'm pulling a shade over 30" HG. Is this right?

 

Which car are you talking about... the cam makes the biggest difference to MAP? What was barometric pressure when you saw 30"Hg at WOT?

 

I hate to say it but I don't know. I'm going off of old datamaster logs right now. I'll try to get some more info but the car's not coming out until the rain stops.

 

You're saying you don't know which car the logs are for?

Or you don't know what the barometric pressure was? Barometric pressure should be in the logs... the MAP sensor records that before you start the engine.

 

Don't know what the baro was.

Shows you how new to datamaster I still am. I did'nt even put two and two together. My MAP looks ok then. It's sitting just a minute bit below the recorded baro at WOT.

(insert slapping yourself in the head smiley here)