Indulge Me On HP/ci
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Indulge Me On HP/ci

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    Senior Member vmaxed's Avatar
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    Default Indulge Me On HP/ci

    Say you had a 12.5:1 468, A 10.5: 496 and A 9.5:1 509 BB2 PLUS heads cam shaft 258/268 @.05 and .680/.70 lift 110LS and 2-750,s witch one would make the most HP? The 509 having a 4" crank.
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    Foxwell Motorsports
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    Quote Originally Posted by vmaxed View Post
    Say you had a 12.5:1 468, A 10.5: 496 and A 9.5:1 509 BB2 PLUS heads cam shaft 258/268 @.05 and .680/.70 lift 110LS and 2-750,s witch one would make the most HP? The 509 having a 4" crank.
    Probably the 468, maybe the 496, but not the 509.
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  4. #3
    cfm
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    I'll put money on the 496.

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    Fir fun I just ran some numbers. The engine build software I use says 798 for the 468, 791 for the 496 and 781 for the 509. It's not a sim. program like DTD, it's more of an engine design program.
    Last edited by steelcomp; 01-30-2012 at 02:45 PM.
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    Platinum Member BigSteve's Avatar
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    Quote Originally Posted by vmaxed View Post
    Say you had a 12.5:1 468, A 10.5: 496 and A 9.5:1 509 BB2 PLUS heads cam shaft 258/268 @.05 and .680/.70 lift 110LS and 2-750,s witch one would make the most HP? The 509 having a 4" crank.
    The 468 motor race gas or mixture of it
    the 496 premium gas
    the 509 could get away on 87-89
    Each motor makes power but at what cost of fuel and can you get it where you want to boat ?

    Me I would run the 509 and add a big nitrous w/ alky if I need the extra power
    from time to time
    If you ain't the lead dog the view is always the same !

  7. #6
    9.00@125MPH
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    Looks like I may have been under guestimating my 468. Maybe I need to run my build through one of those programs.

    Tim

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    cfm
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    Quote Originally Posted by River Rat 005 View Post
    Looks like I may have been under guestimating my 468. Maybe I need to run my build through one of those programs.

    Tim
    Those #'s are unrealistically high for the parts/specs presented.

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    Senior Member tigertooth's Avatar
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    Quote Originally Posted by vmaxed View Post
    Say you had a 12.5:1 468, A 10.5: 496 and A 9.5:1 509 BB2 PLUS heads cam shaft 258/268 @.05 and .680/.70 lift 110LS and 2-750,s witch one would make the most HP? The 509 having a 4" crank.
    468 hands down with that cam. 700hp on Gears dyno.Just ran a 475. Same basic cam, AFR 305s with cnc chambers and single 1050. Made 305@6800.

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    Senior Member jimclauss's Avatar
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    Quote Originally Posted by steelcomp View Post
    Fir fun I just ran some numbers. The engine build software I use says 798 for the 468, 791 for the 496 and 781 for the 509. It's not a sim. program like DTD, it's more of an engine design program.
    Numbers are a little high for what your talking about. a 509 with 9.5 compression making 781 hp not on you life. Dream on.

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    Senior Member EVILFORCE's Avatar
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    Quote Originally Posted by steelcomp View Post
    Fir fun I just ran some numbers. The engine build software I use says 798 for the 468, 791 for the 496 and 781 for the 509. It's not a sim. program like DTD, it's more of an engine design program.

    Now steel. You know you pulled that out of your hat. Not enough info provided. What sre you up too?????????
    No Fool Like A Old Fool is there?

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    Senior Member hotbo's Avatar
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    Quote Originally Posted by tigertooth View Post
    468 hands down with that cam. 700hp on Gears dyno.Just ran a 475. Same basic cam, AFR 305s with cnc chambers and single 1050. Made 305@6800.
    wasnt it 705
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    Senior Member jimclauss's Avatar
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    Quote Originally Posted by hotbo View Post
    wasnt it 705
    How your within about 10 hp. thats what my Dyno would say.

  14. #13
    Senior Member tigertooth's Avatar
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    Quote Originally Posted by hotbo View Post
    wasnt it 705
    You are correct. My spellchecker don't work on X.R

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    Senior Member jimclauss's Avatar
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    Quote Originally Posted by cfm View Post
    I'll put money on the 496.
    How much do you want to lose???

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