I wanna build a B20 block for turbo that can withstand 15psi daily driven. The only question is what should I do to the block so it can take it? Anyone have a list or anything, any opinions would be nice thank you.

 

Sleeves, pistons, and rods - The stock sleeves may be ok, but I wouldnt risk it

 

What turbo? That makes a big difference. You can't just say 15psi because 15psi on 14b or 15psi on a pt67 is a big difference.

That being said I agree with previous poster, pistons, rods, sleeves.

 

a garrett T3/T04E 60 trim

 

You could probably get away with 15psi on stock sleeves with race gas but getting away with it and doing it safely are two different things. I say always sleeve, otherwise your dealing with a ticking bomb.

 

I just tuned my stock LS and make 310WHP and 274WTQ @ 20psi with a t3/t4 57 trim with stage III wheel .50/.63(check my sig). I rebuilt the motor so it had 0 miles on it. You cant post a question asking who much psi can you run because this depends on the motor,the turbo,and most important tuning how much power your going to make at a certain psi. The question you need to be asking is what do you need to do to your motor to get a certain HP goal. I sure once you know what your HP goal is people on here will be more that happy to point you in the right direction.

 

Well my main hp goal is to be around 300-400, so basically what all do I need to do to a B20 motor to reach this hp amount?

 

Yeah a b20 will do it. Just find yourself a good builder.

 

I wanna build it, I just dont wanna go over board with things I dont need to reach 300-400hp. Im just asking if anyone know s what needs to be done, for instance I know I gatta sleeve it to get higher boost, but what else to reach 300-400hp.

 

The Sleeves on the B20 are its weak point!!!!

But if you plan to rebuild with upgraded sleeves, this doesnt mean anything!

Jon