I have an 06' IX evo to start. My question is ever since I installed my boost gauge. "Autometer" not the best, but better than nothing. My point is my car spikes @ 15lbs of boost @ WOT. From what I am told is that my car should be spiking @ 19lbs and tappering to 16lbs. Is that correct and if so did I just get a **** tuned car from the factory? Because I have never heard of a gauge being off that much.. I have a Forge rec. BOV and a 3" catback exhaust. If anyone have helpful imput it would be appreciated.

 

wnenever you're having a boost issue, it's always reccomended to perform a boost leak test. it's easy to do and should be part of your routine maintenance with a turbocharged car since they're bound to happen. the parts to make one can be had at lowes for <$20. even from the factory a good bit of cars come with leaks, mine had 2 the first time i tested it.

 

I don't think it is leaking it just seems to be under boosted from the factory..

 

I have an '06 IX built in June and it also hit 15psi max stock. I also did a leak test and found none. I have since moved to an MBC.

 

How do we perform the leak test? what do we need to do it?

 

i've wrote it up so many times i just don't feel up to it right now(kinda long). just search boost leak test with my username and you'll come across some posts.

 

thanks buddy!

 

here ya go, post 48. https://www.evolutionm.net/forums/sh...oost+leak+test

 

that does seem awfully low

I wouldn't assume you don't have boost leaks though, it's quite common.