PSCAWB289

My bone stock 10th anniversary is taking 40 psi from the factory turbo turned wide opened.

Troclo

The you are about to break it! Normally the twins only produce about 10-12 psi. Is there perhaps something wrong with your boost gauge?

Evil Aviator

No, your gauge reads in mmHg X10, so when the needle hits "+40" it means 40 x 10mmHg = 400mmHg = 7.7 PSI.

The stock engine management computer will initiate fuel cut to the rear rotor somewhere around this pressure, so if you are experiencing an engine-gagging, hesitation, "brick wall" effect at this point then that is what it is. The fuel cut is keeping the engine from running too lean and blowing up.

The 10AE has a single turbo that normally runs about 6.5 PSI boost, and as explained above the computer will cut the fuel to the rear rotor about 1 PSI above this level. Even if the engine and computer are modified to handle more boost, the turbo will puke its seals long before 40 PSI.