This is topic how much boost on 10:1 compression in forum Tech Talk at Northern California Ford Owners  .


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Posted by 79 cobra (Member # 10137) on :
 
how much boost on a 10:1 347 with a 4 bolt main
 
Posted by JohnB (Member # 969) on :
 
Way random. Depends on your fuel system, your camshaft, and tune...
 
Posted by 79 cobra (Member # 10137) on :
 
255 in tank and 255 inline and 42 lb injectors and a e 303 with holley intake
 
Posted by JohnB (Member # 969) on :
 
I wouldn't go any more than 8 psi. You need a real fuel system, that's the limiting factor.

[ August 21, 2010, 11:30 PM: Message edited by: JohnB ]
 
Posted by 79 cobra (Member # 10137) on :
 
wat about the compression ratio is that a factor cus i got a 12 lb pulley
 
Posted by JohnB (Member # 969) on :
 
Either ditch the pulley for a 8 psi or less setup, or upgrade your fuel system.


Or, just change head gaskets every time you pop one. Run a 9333PT1 FelPro gasket.
 
Posted by 79 cobra (Member # 10137) on :
 
wat system do u recomend and i got mls head gasket from fel pro
 
Posted by JohnB (Member # 969) on :
 
Upgraded supply/return lines and a bigger pump.
 
Posted by 79 cobra (Member # 10137) on :
 
i got 10an in and 8an out already
 
Posted by JohnB (Member # 969) on :
 
quote:
Originally posted by 79 cobra:
i got 10an in and 8an out already
With a 255 intank and a 255 inline? lol...ok.
 
Posted by phildog (Member # 1214) on :
 
An e cam in a 347 aftermarket block with boost? Really? The cam is gonna hold you way back. You can make power in spite of the cam, but it's time to step up the bumpstick.

[ August 22, 2010, 07:47 PM: Message edited by: phildog ]
 
Posted by 92stangLX (Member # 3252) on :
 
6lbs.. maybe
 
Posted by 70mach351 (Member # 7528) on :
 
i think johnb is saying magnafuel or aeromotive something that will support a lot of hp. You do not want to run out of fuel and detonate. On my cobra i had a a1000 with 10 an supply and 8an return. got a sumped tank and aeromotive setup if your interested. pics are in my profile.
 
Posted by fasthatch (Member # 7277) on :
 
quote:
Originally posted by 70mach351:
i think johnb is saying magnafuel or aeromotive something that will support a lot of hp. You do not want to run out of fuel and detonate. On my cobra i had a a1000 with 10 an supply and 8an return. got a sumped tank and aeromotive setup if your interested. pics are in my profile.
you still got the tank i can pick up monday
 




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