4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

i got my pi heads!!!! but now i have even more ?'s

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Old 03-27-2007, 03:46 PM
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options2rx7
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Default i got my pi heads!!!! but now i have even more ?'s

woo hoo i got my pi heads!!! i do have a question tho, if i plan on getting a supercharger as well would i need to worry about the higher compression of the pi swap and reliability, or is there something i can do during the swap to better prepare for this?
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Old 03-27-2007, 03:50 PM
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2002GTAUTOVERT
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Default RE: i got my pi heads!!!! but now i have even more ?'s

well, first thing id do is get forged internals... completely re-do the bottom end if you want to run high boost. second, to lower compression you can get different head and/or pistons that would help you do this.
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Old 03-27-2007, 03:57 PM
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ASUSMC
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Default RE: i got my pi heads!!!! but now i have even more ?'s

You can use a thicker head gasket which will lower compression a little bit. As far as running a supercharger you can keep the boost lower and stay perfectly safe.
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