This is topic supercharging gt40p heads in forum Tech Talk at Northern California Ford Owners  .


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Posted by keith84svo (Member # 11990) on :
 
My plan is to rebuild my 93 block with forged pistons. It has hypereutectic pistons.
Mileage... I don't now 60K or 160k. I have gt40p heads. They are ported, tfs springs, I'll probably get 1.6 rockers. I wanna stay with stock cam. How much boost can I run safely. Please don't say anything about aluminum heads. I want a nice weekend street car. Nothing radical.

Thanks
 
Posted by racsirx (Member # 1710) on :
 
6-8lbs of boost max and make sure your tune is perfect otherwise you will be changing head gaskets a lot, and might be changing some pistons also
 
Posted by Fostang (Member # 3752) on :
 
That's a loaded question

Flat top/ domed or dished Pistons?

Any surface work to heads? Have they been cc'd?

Get the quench right with a good head gasket and 30 psi with c16 gas or about 10 with pump gas.

Too many unknowns to give you a round number.
 
Posted by racsirx (Member # 1710) on :
 
quote:
Originally posted by Fostang:
That's a loaded question

Flat top/ domed or dished Pistons?

Any surface work to heads? Have they been cc'd?

Get the quench right with a good head gasket and 30 psi with c16 gas or about 10 with pump gas.

Too many unknowns to give you a round number.
Lol, I tried 12lbs with C16 and blew the gaskets on the dyno with gt40p heads, they just don't like boost
 
Posted by ed650 (Member # 9897) on :
 
Watch and read description:

https://youtu.be/9lLhUsCfHLw
 
Posted by Fostang (Member # 3752) on :
 
quote:
Originally posted by racsirx:
quote:
Originally posted by Fostang:
That's a loaded question

Flat top/ domed or dished Pistons?

Any surface work to heads? Have they been cc'd?

Get the quench right with a good head gasket and 30 psi with c16 gas or about 10 with pump gas.

Too many unknowns to give you a round number.
Lol, I tried 12lbs with C16 and blew the gaskets on the dyno with gt40p heads, they just don't like boost
Lol I was only kidding about the 30psi.

But you know what's up.
 




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