read this in another thread that the 01s-02s had powder coated headstuds that were weaker than normal whats the max hp can they hold? i want to go a step up with injectors and turbo nothing crazy just yet the motor has 262k on it so i dont want to put alot of hp through it till i rebuild it when i do i will put new cryo headbolts . i haul 5k on the weekends so i want to put bigger injectors and turbo to help me pull a bigger load

 

You are mistaken with the rods... Pmr's were in the 01+ trucks which stand for powder metal rods. The head studs are fine until you start running higher than 40ish psi boost pressure. This will come when your knocking on 500hp with hybrids and a larger turbo. That's when its time to upgrade head studs. If your truck does have pmr's, you will not want to push more than 450-500 hp. Even those numbers can be iffy on some pmr trucks...

 

Stock has head bolts. They are not studs

 

AC injectors with 100% nozzles.

Install with a TS chip with single shot tuning.

Enjoy.

 

okay great thanks guys saved me alot of trouble. i know this is a dumb question i know that ford put a 20 psi boost limit on motor . if i got bigger injectors and turbo how can i get around that or will a ts 5 pos fix that ? im new to upgrading diesels thanks

 

There is no 20psi limit on the motor...

At about 22-25 psi the PCM cuts back fuel because it thinks there is something wrong.

Some tuners disable this, or you can buy a boost fooler from RiffRaff Diesel (I'll link to it in a bit...).

 

oh okay thanks

 

Riffraff Diesel: OCR - Overboost Code Regulator

 

awesome thanks doesn't look to bad to install

 

or you can go to napa and pickup a air limiting valve, kinda like a regulator. it's meant for ait tools such as a spray gun to limit out put pressure. i put it between the boost sensor and the map sensor. it seems to work fine.