Speaking of carbs how bout my 800dp
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Speaking of carbs how bout my 800dp

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    Senior Member H20MOFO's Avatar
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    Default Speaking of carbs how bout my 800dp

    Marine #9022 does my carb flow like a 750 or 850 or????
    Another Hot Boat refugee

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    Cantard 71hallett's Avatar
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    Just a shot in the dark but I would guess somewhere in between.
    Quote Originally Posted by gn7 View Post
    It would be a balmy 85* in Steel's shop if he would move a little faster

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    Quote Originally Posted by 71hallett View Post
    Just a shot in the dark but I would guess somewhere in between.
    LOL...going out on a limb, there?
    If God is your co-pilot, change seats!
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    I remember once a Trucker came on the CB asking where Mile Marker 41 was HWY 45 in Houston. No one answered back so I said, "1 mile north of mile marker 40 and a mile south of mile marker 42! You should have heard how much crap that guy received for the next 800 (pun intended) miles!

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    cfm
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    Quote Originally Posted by H20MOFO View Post
    Marine #9022 does my carb flow like a 750 or 850 or????
    The 9022 is a normal sized 800cfm carb. It is also a pretty good carb for many 450-550hp marine builds and thus why so widely used in the marine performance world.

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    Senior Member H20MOFO's Avatar
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    See ..at least I'm good for entertainment around here.lol I dunno I was curious because I see proform main bodys for 750's and 850's ...I assumed an 800 was a tweaked one or the other. If I had a chance to trade my 800 for a 950hp, it probably wouldn't be worth the freight or would it?(I need a bigger carb)
    Last edited by H20MOFO; 01-21-2009 at 07:27 AM.
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    gn7
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    All these Q's about how much my carb flows, and not one said any thing about depression. What know what your carb is flowing? Measure your manifold vac (with a damn good gauge) at WOT and max RPM and look it up.



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    I've been wanting to measure my manifold vacuum. So, what would be a good vacuum gauge? I tried a Summit one that bounced all over the place. Should it be liquid filled? I've seen digital ones also.

    Tim

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    cfm
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    GN7 - he's got a 557"BBC so either carb would be too small in my book. I'll bet he's at 2"HG (or damn near it) at WFO.

    H20MOFO - I am led to believe that the HP series are the better candidates for blow thru, and I mention this because of your want to add Turbo's or etc in some time. I'd call CSU / The Carb Shop / etc blow thru carb people and check with them which would be better for blow thru, if that is the route you are going to take.

    The 950 does flow a tad more air than the 800 and seems to provide a flatter/better A/F curve than the 800's. My opinion as always.

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    gn7
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    Then I would venture to guess that his 900 is flowing more that 900, reguardless of the booster style. Look at 2 barrels. A 2300 2 barrel is rated at 500cfm and yet it's just 1/2 of a 600/650 4 barrel. It's not rated at 250 because it's flow at 3"HG instead of 1.5"HG for a 4 barrel. If you want a 2 barrel that flows 500 at 1.5"HG, you need to cut a dominator in half That 900 on that motor, with 2"HG could very well bew flowing over a 1000. Put a 1250 dom on it, the vac falls to 1.2" and it flows more like 1100.



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    Quote Originally Posted by gn7 View Post
    Then I would venture to guess that his 900 is flowing more that 900, reguardless of the booster style. Look at 2 barrels. A 2300 2 barrel is rated at 500cfm and yet it's just 1/2 of a 600/650 4 barrel. It's not rated at 250 because it's flow at 3"HG instead of 1.5"HG for a 4 barrel. If you want a 2 barrel that flows 500 at 1.5"HG, you need to cut a dominator in half That 900 on that motor, with 2"HG could very well bew flowing over a 1000. Put a 1250 dom on it, the vac falls to 1.2" and it flows more like 1100.
    Hmmm...kina just like a flow bench.
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    gn7
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    Yep. I just got done flowing a set of my tricked out peanut ports at 200"WC. CFE's BMF 385 have nothing on these babies. 450 cfm at .200 lift A wee bit turbulant though. But tumble is good......right?



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    Quote Originally Posted by gn7 View Post
    Yep. I just got done flowing a set of my tricked out peanut ports at 200"WC.
    Hope you where wearing ear protection.

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