454 oval port build results
10-18-2016 | 02:01 PM
#21
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From: FredVegas, Va
While we are talking size...I am planninng/starting a 454 build with a 177. I really do not want to make more than 5oo-525 hp. 1. I want the boat to be fun, not dangerous 2. it will be airborn a lot, I dont not want to change drives more frequently than I change my socks.
Looking to cruise around 50-55 and before laying into the boost,. So do I really need a bigger blower? I will have higher static compression than a 525 sc and better cam so the actual boost shouldnt be that much except when I want to turn it up to 11...
Looking to cruise around 50-55 and before laying into the boost,. So do I really need a bigger blower? I will have higher static compression than a 525 sc and better cam so the actual boost shouldnt be that much except when I want to turn it up to 11...
You could make that power N/A if you really wanted to I bet.
10-18-2016 | 07:38 PM
#24
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Joined: Jan 2006
Posts: 3,598
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From: taxachusetts
While we are talking size...I am planninng/starting a 454 build with a 177. I really do not want to make more than 5oo-525 hp. 1. I want the boat to be fun, not dangerous 2. it will be airborn a lot, I dont not want to change drives more frequently than I change my socks.
Looking to cruise around 50-55 and before laying into the boost,. So do I really need a bigger blower? I will have higher static compression than a 525 sc and better cam so the actual boost shouldnt be that much except when I want to turn it up to 11...
Looking to cruise around 50-55 and before laying into the boost,. So do I really need a bigger blower? I will have higher static compression than a 525 sc and better cam so the actual boost shouldnt be that much except when I want to turn it up to 11...
10-18-2016 | 08:01 PM
#26
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Joined: Apr 2006
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From: Toledo Oh
given the same ratio and rpm into the same motor yes. physics.. A larger blower has more volume. Each revolution puts that volume into the motor.
10-18-2016 | 08:24 PM
#27
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From: On A Dirt Floor
Roots SC's have a fixed displacement per rotation.
Centrifugals have stepup ratios's therefore, they will inncrease more boost as engine rpm's go up,
Last edited by SB; 10-18-2016 at 08:37 PM.
10-18-2016 | 08:28 PM
#28
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From: Olmsted Falls,Ohio Marblehead,Oh
10-18-2016 | 08:29 PM
#29
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From: Olmsted Falls,Ohio Marblehead,Oh
10-18-2016 | 09:03 PM
#30
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From: Moultonborough NH
Boost may be boost, but mass airflow will be greatly different at the same boost level between the two blowers. That's why the larger blower makes more power.
