I did try searching, but didn't find anything really conclusive.

As you can see in my details, I have an 06 GG MR. By looking at the conversion chart I found online, I typically consistently boost like 18psi.

My buddy bought an Evo 8, and installed his EBC. The car had a nice MBC on it when he bought it. I'd like to put it on my car.

Now my question is, how much boost is safe for the stock ECU without a reflash. I have heard 20-21 psi is okay. I currently have a drop in filter, an induction cover, and a nisei licp on order. I want to have a little bit more power (dyno'd 282 hp/ 272 tq last weekend) but not compromise the limits of the ecu.

Thanks for all input, including flaming.

 

i thought 9s boost at 21?

 

What you said is perfectly fine man. 20 to 21lbs is perfectly fine.

Definitely aim for a tune if possible and get a turbo-back for best results if the funds permit.

 

Well I have to convert it because of the stock boost guage is in bar, not psi. But usually I'm at like 1.2 bar or so, which is approximately 18-19 psi.

 

Called Jared @ Buschur and he told me that stock boost is like 18.7

 

Stock boost should be cut a lil by the ecu as it runs up to redline too, even if you were to run stock boost on a MBC it should make your car feel like its not running out of breath.

 

20-21 is fine for a IX with those mods. That is what I have my AMS tuned IX at.

Eric