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Forced Induction Supercharger/Turbocharger

What size parts

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Old Feb 24, 2007 | 04:20 PM
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93 4mula's Avatar
93 4mula
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What size parts
What size header primaries and other piping and size cam etc would be ideal to make 1000rwhp? With a gt47-88 on high boost..
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Old Feb 24, 2007 | 04:40 PM
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im no expert but ill take a shot

headers: 2in
exhaust: dual 3-3.5in
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Old Feb 24, 2007 | 04:47 PM
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I was thinking about 1.75" primaries and like a 2.5" crossover pipe with a 4inch dp all the way back. Anyone think thats enough flow?
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Old Feb 25, 2007 | 03:34 PM
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Originally Posted by 93 4mula
I was thinking about 1.75" primaries and like a 2.5" crossover pipe with a 4inch dp all the way back. Anyone think thats enough flow?
That would be the most common. Some people have done 1200rwhp on 1-5/8" primaries but, 1-3/4" with 2.5" crossover is probably more common at that HP.
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Old Feb 25, 2007 | 04:16 PM
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1 5/8" primaries on smaller cubed motors and 1 3/4" on bigger cubed.
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Old Feb 25, 2007 | 05:07 PM
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Just make sure the primaries match up to the head well. 2.5" crossover is fine.

As for the downpipe, it can be done with a 3". Easier with a 3.5". Easier still with a 4".
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Old Feb 25, 2007 | 11:18 PM
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Sweet...
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