honda-tech is wrong. it most certainly IS the PSI you are running that makes it blow up. higher PSI means HIGHER risk of detonation, increased cylinder pressure and cylinder temps, etc.

For instance:
if you are making 400whp at 20psi of boost. you get your head ported , and get a Full race turbo manifold. You are now making 400whp@17psi. same power less boost=more efficient motor.

Now, lets say you turn the boost up from 20psi to 23psi. youu make 420whp. this motor is less efficient than the previous one. Your increasing boost which almost always means "kaboom" if your at the limit.

So ask HT this question, if someone runs 25psi on a b16 motor and makes 300whp vs someone that boosts 18psi and makes 350whp, which motor will last longer. Assume both motors are stock except for rods and pistons. my money is on the 18psi/350whp.

Long story short, Sleeve it for piece of mind, and if you decide to shoot for more power later. otherwise, 400-450whp/20-22psi is safe on stock sleeves, WITH GOOD TUNING.

-VTECKIDD (on my friends screename)