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27 Mag with 620 hp

Old 04-10-2006, 10:05 PM
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27 Mag with 620 hp

Have a buddy of mine that just put a 620 hp engine in a 27 Mag sport with a bravo. What prop do yall recommend him and what kind of speeds yall think he will be seeing. Thanks in advance

jr Mike
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Old 04-11-2006, 08:01 AM
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Default Re: 27 Mag with 620 hp

72mph.
Is that a standard bravo 1, or XR?

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Old 04-11-2006, 09:29 AM
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Default Re: 27 Mag with 620 hp

standard... yea that's kinda of what i told him

jr Mike
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Old 04-11-2006, 10:02 AM
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Default Re: 27 Mag with 620 hp

He should take it easy w/ that B1.
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Old 05-30-2006, 11:54 PM
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Default Re: 27 Mag with 620 hp

I figure he should do 86...but he has to put in an Arneson ASD6 Drive instead of that Bravo...I don't think that Bravo will hold up.
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Old 05-31-2006, 02:00 PM
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Default Re: 27 Mag with 620 hp

i'd put my money on hitting mid 80's.
my buddy's got a magnum with twin 383's 400hp a piece and he's hit 72.
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Old 05-31-2006, 03:17 PM
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Default Re: 27 Mag with 620 hp

If ya want to hit 86, you can do it if you add a Paxton blower. It'll give you another 250 HP for only $1500, and your boat is already 900# lighter than a twin.

I'm putting a 625 Ilmor in my Sport with a blower for 875 HP, and an Arneson SD. The Ilmor saves me another 300#, and I'm sure I'll break 100... if not... probably 99.

Last edited by FLYWITHME; 05-31-2006 at 03:30 PM.
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