Well I have a Road Tune by Al on a Bone stock Evo 9.

The car runs great and all but I have a little question if someone can please answer.

Is spiking to 1.5 and holding that PSi all the way to redline, is this normal or is there something I should worry about? My Car doesnt seem to taper off at higher RPMs, it Holds that PSi the whole way.

If I'm not mistaken 1.5 is 22 PSi. Is that safe for a stock Evo on 93 Octane?

 

sounds perfectly fine. But then again I am not a pro :}

 

i wish mine did that. i'm only on stock boost with no taper. oh, al does say to have a fuel pump if running any boost above stock though.

 

It sounds healthly to me, I am running similar boost (just a hair lower at red line) but I am running on 91oct and no issues.. and yes, I am running a flash from Al .

Just curious, what boost gauge are you using?

Carlos

 

Damn you evo 9 guys seem to have no issues with taper....as us 8 guys do. My car does pull hard except once it hits 22psi and carries up near redline it will taper to 20/19 psi......

 

Wow this is good news!.

Thanks for the great tune Al!. Oh by the way I thought the 06 evos didnt need a new Fuel pump at 22psi.

Should I consider this? Al never told me anything.