Stock boost on the EVO peaks at about 19 psi, and then tapers off as you climb towards redline? Is this correct. I am more curious than anything, and just want to make sure my boost gauge is reading correctly. I have read that's what it is.

 

you are correct.. buy a b/c and boost taper will disappear.. pref. an electric b/c.. just my opion though..

 

electric boost controler is good and nice...but you you want to save a little money, manual boost controler will do the job and it is easier to use.

 

19 psi if it's a 03 or 04 evo, the 05 is about 20.5 psi

 

not entirely correct. you need atleast a turboback and boost controller to get rid of boost taper.

 

^^ and if you have these things you may as well get a tune, there are other things to worry about when you raise boost...raising boost alone just to get rid of taper isnt the way to go, get a tune. That way air/fuel will be adjusted, ignition timing, and of course boost.

 

wait! 03 is slightly less than 19....it's like 18.5 or something like that.

It was stated on the Salesman Training Video...

you can download it from SoCalEvo.net

 

Get a Tune or a mail in flash (I have the Works P2) and you will see 19-20 lbs all the way to redline. At least I think so, I havent fully broken in my car yet, so I havent seen beyond 6000 rpm/19 lbs yet.

 

Do you have an 05? If so it's more than 19.

https://www.evolutionm.net/forums/sh...d.php?t=141776

 

buy a hallmans, i heard they were awesome for the price. Dont buy a Profec B, i have one and its a pain cause it constantly changes, but ive gotten used to it.