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

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Old 04-16-2007, 09:13 PM
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Chris98Gt
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Default Quick question

After i get my Pi swap and cams all finnished I would like to put an innercooledkb supercharger onmy car. I was just wondering since it will have 10:1 compression with the new stuff whats a safe boost level to run withstock internals?
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Old 04-16-2007, 09:15 PM
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Nitti00GT
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Default RE: Quick question

I have heard that 9 psi with a KB is the highest you should go on a 99-04 PI motors with stock internals. Since you have an sn95 with the swap, as you know,you have higher compression so idk. They have an 8 psi pulley.
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Old 04-16-2007, 09:15 PM
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JT76
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Default RE: Quick question

its not the boost level, its the RWHP level that matters....stay close to 400 much more than 420 is a matter of time before the boom
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Old 04-16-2007, 09:18 PM
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Chris98Gt
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Default RE: Quick question

Alright, thanks guys.
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