4.6L General Discussion This section is for non-tech specific information pertaining to 4.6L (Modular) Mustangs built from 1996 to 2004.

Can i take him?

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Old Oct 14, 2007 | 08:04 PM
  #21  
96GT_PSL's Avatar
96GT_PSL
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Default RE: Can i take him?

ORIGINAL: Zanador

ORIGINAL: 96GT_PSL

the PI swap can be found as a kit...but i suggest finding all the parts u need for cheaper. a complete PI swap consists of swapping your heads, cams, and intake manifold to that of a 99+ GT. this swap gives us MUCH better flowing heads and also a jump in compression. the result is a car that produces more power than a stock 99+ GT. so ur 96 GT can pull up to a 99 GT and eat it. problem is when ur compression ratio is raised, its unsafe to use boost. for that u should probably forge the bottem end (crank, rods, pistons basically) or get pistons that will lower the compression ratio. all my internals were forged and thats why im running a supercharger. ive seen a few stangs with PI swaps run superchargers without doing anything to lower their compression ratio. most of them blew something up. a few of them are still running. but when u do that its not a question of if...its a question of when.
EDIT: Argh, MF ate my post. I had a great post about it too.

Basically, you CAN S/C a Pi swapped mustang- while 10.5 compression is not ideal for S/Cing, you can run 8psi on it and get to about 400rwhp, the safe limit for the stock internals.

If you then decide to go forged, you can lower the compression to 8.5:1 or 9:1, more ideal for S/Cing.

yes u have a good point there. but the wear and tear on the engine will be alot. if u have a motor that has over 100k+ on it then it may not be a good idea. besides....400 HP isnt enough for me....im going for the big dogs! lol.




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