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Message: [QUOTE="Powerstroke Cowboy, post: 879096, member: 610"] I here you there for sure TY!! I agree the S480 would work. Just not ideal. And it will not be smoke free with 250/200 injectors. The S480 with race cover and cast wheel flows about 120 LB/MIN. Should be almost smoke free with 250/100. It has been and can be done. I guess my hang up is the S475. The term smoke free and 450+ HP and S475 should not be in the same sentence. I hear you there on the 6.4 turbos. BUT the are almost a liter smaller and have a cleaner burn to begin with. For me I would not do it. After all the purpose of compounds it to be fast spooling plus clean burning with low EGTs. Good low end for pulling plus have the air for top end. Why limit yourself with the S475?? It can be done and has been done with the S475. And I am sure will be done again. Just do not see it being the turbo of choice. But if you look at prices the S475 can be had cheap! That makes it look good. I have one that after I am done with it I would sell it for 750 shipped. It would still be new just not new. Mock up turbo. [/QUOTE]

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