ok so i got the gauge all hooked up, it reads normal vacuum, and all but when it goes to boost, it goes to about 18 psi then tappers off to about 15. isn't that high on a stock car? i thought it was only suposed to be around 12 tops. i spliced it into
the fpr line, the one with the blue dashes on it, got the info for that from this board somewere for which line to use

 

it normal on an evo I was doing about 19 tappering to 16 stock. I believe the eclipse hits about 12 stock.

 

19 is stock for the Evo, but you may want to replace your BOV as it should hold steady at 19 - you shouldn't see any significant taper until you get up around 22-24lbs.

 

normal