procharger 496 HO supercharger
#11
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Join Date: Dec 2002
Location: Alex. Va.
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Went from a 26pitch 4blade at 67.8gps to a 30pitch 4blade bravo at77.8gps 5000rpms wish i could spin a 28 harder but cant change the rev limiter nobody works the 555ecm yet and i dont want to hit the rev limitor cause mercuiser shuts injector pulse down instead of ign down.
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#17
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Join Date: Jun 2002
Location: waterford,mi
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67.8 gps?
A 271 fastech running 67.8 on gps with 375 hp?
I saw a test on one it ran 63, the fountain was 5mph
faster, that would make it run 72 with an ho.
The formula has a lot more room but I opted for the
5 mph. Either I'm bummed or you have a freak.
Powerboat has one with a 500 I'll have to check
what it ran, seems like 70. My HO runs 67, Enjoy John
I saw a test on one it ran 63, the fountain was 5mph
faster, that would make it run 72 with an ho.
The formula has a lot more room but I opted for the
5 mph. Either I'm bummed or you have a freak.
Powerboat has one with a 500 I'll have to check
what it ran, seems like 70. My HO runs 67, Enjoy John
#18
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Join Date: Dec 2002
Location: Alex. Va.
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Hey my 271 ran 62 on the gps when i first got it but i took the plastic baffles out of the exhust and had a prop worked then i saw 67.8 nothing crazy just did a little work.