How much boost pressure can my 97 7.3l engine handle?

 

The boost pressure is insignificant compared to the pressure created when the fuel and air ignites.

 

yes but once you start getting aftermarket turbos and such and higher boost pressure what will you need to upgrade to handle the extra boost? I must have been misled but i have been told that once you get to certain boost pressure you need to start upgrading your head studs and such?

 

yes, the head gasket only will hold till a certain boost and it can hold over that but you risk the chance of blowing it

 

you can run around 40 psi with your typical 7.3.

 

It will hold 100+ with the right mods

 

thank you

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What are the right mods? head studs?

 

Boost is only one ingredient to the stresses on the head bolts/studs. Your question could have been how much fuel will it handle and my response would be the same. Asking how much fuel makes more sense to me because that would indicate which injector to buy and therefore which turbo will match. A better question would be how how much pressure will those two ingredients create. i.e. power (or more accurately torque). There is a direct linear relationship between torque and the tension on a head fastener.

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Example: ARP head stud rated at 220,000psi x .15 square inches per stud x 18 studs per head / 4 cylinders per head / 27.27 square inches per cylinder = 5,458 psi... of "boost"?

 

Head studs, fire rings, bed plate, main studs. I probably forgetting stuff. Stock the engine can handle about 40psi. After that you need head studs or before depending on how you drive and how much insurance you want.