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Old 02-10-2004, 06:03 PM
chevyelc81's Avatar
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Wiend 142 or 177 blower?

I was just wondering how much of a difference it will make to upgrade from a 142 blower to a 177 blower. Is it worth it? Ive been told that a 177 blower was capable of 700+ hp on a 350 with .600 lift. Is that capable with a 142? I was running 9lbs of boost out of my 142 last summer on a 355 sbc with 8.8:1 compression and brodix heads, and it had plenty of power. Im upgrading to a 383 with 8:1 compression this winter. I can buy a smaller crank pully to bring my boost up to 11-13 psi, or I can run a 177 c.i.d. blower with high boost pullies. Which would be a better choice? Any of you guys who have run a 177, please give me your opinion. Thanks

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Old 02-10-2004, 06:29 PM
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Turning the larger blower slower would be the better option (less heat). Making 700HP might be a little optimistic.

If you spin the smaller blower faster it is going to become less efficient.

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