Blown or natural
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Blown or natural

  1. #1
    Senior Member smitt19's Avatar
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    Default Blown or natural

    I've got to go through my 565 again thats set up as your standard 8.5 comp deal have an intercooler and a 10-71 made 1080 with just over 11lbs usually ran at 10 to avoid race gas,I was contemplating dropping the blower and going naturally aspirated, but need close to 1000, planning on going E-85 (plenty around here) not sure my heads will work (380 darts) or I all so have a set of 345 afrs, to big? max rpm 7200 5000 2/3 of the time. Roots just seem to suck so much power, Other though was bump comp to 10-1 still blow it with the E-85 should make some sick power.... thoughts?

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    mo balls than $cents$ IMPATIENT 1's Avatar
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    turbo time stay away from the bottle, its addictive and you'll be chasing that 1st big shot high forever and go broke doin it

    quickfuel makes a single 750cfm blow thru e95 carb that'll carry you up to 1400 jus sayin

    Dare to be different, if it turns out great you can claim you planned it that way.

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    mo balls than $cents$ IMPATIENT 1's Avatar
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    watch the video on this page and remember he's just runnin it up to 5500 and that's it on those pulls, and he hasn't even turned boost up yet

    http://www.performanceboats.com//showthread.php?t=52087

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    NA and E-85 with around 12 to 1 compression your going to be in the 800 HP range with those cubes and that RPM. Going to take a healthy stick so maintenance will be increased.
    Chris Straub
    Straub Technologies

    3HP is an A$$ Whooping!!! JW

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    I'm famous ! Lucky's Avatar
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    Default

    I personaly would prefer to be blown .......
    " my carbon footprint is gonna kick your green ass"


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    AKA Blownjet 468 Blowncat 509's Avatar
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    X2!!!:d

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    So right now you have a reliable 1000hp pump gas motor, and ya want to change. I wouldn't change a thing. Freshin' her up and run it.





    Darrell.
    San Diego.

    28ft Sportcat
    With Twins

  10. #8
    just a ski boat with bark Carnivalride's Avatar
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    Quote Originally Posted by smitt19 View Post
    I've got to go through my 565 again thats set up as your standard 8.5 comp deal have an intercooler and a 10-71 made 1080 with just over 11lbs usually ran at 10 to avoid race gas,I was contemplating dropping the blower and going naturally aspirated, but need close to 1000, planning on going E-85 (plenty around here) not sure my heads will work (380 darts) or I all so have a set of 345 afrs, to big? max rpm 7200 5000 2/3 of the time. Roots just seem to suck so much power, Other though was bump comp to 10-1 still blow it with the E-85 should make some sick power.... thoughts?
    Not sure why you would consider losing the blower if you already have it. For cost effectiveness freshen up what you have after all 1080hp is nothing to sneeze about. However if your considering going to e85 why not leave the piston's and cam and up the boost to say 15-16lbs and see what happens.

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    Senior Member smitt19's Avatar
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    Default keeping it

    Quote Originally Posted by Carnivalride View Post
    Not sure why you would consider losing the blower if you already have it. For cost effectiveness freshen up what you have after all 1080hp is nothing to sneeze about. However if your considering going to e85 why not leave the piston's and cam and up the boost to say 15-16lbs and see what happens.
    I've had a hell of a time getting a boost # much past 12 spinning it as much as 30% over in two different motors three different cams , thats why I have been leaning towards bumping the comp. seems to be the trend, looking at he charts 10 to 1 with even 10 lbs = 16.8 which I've heard is not that far off with E-85 I've run 10 lbs with 8.5 comp. which = is 14.3 on bds chart never saw a sign of detonation. ( I plan to use chris this time to get the best choice this time) to get that optimized, as far as bleed off,

  12. #10
    Senior Member smitt19's Avatar
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    Default mark

    Quote Originally Posted by IMPATIENT 1 View Post
    turbo time stay away from the bottle, its addictive and you'll be chasing that 1st big shot high forever and go broke doin it

    quickfuel makes a single 750cfm blow thru e95 carb that'll carry you up to 1400 jus sayin
    I know mark and he is making crazy power with that,looked at it the last time it came a part. changing to efi and turbo would probably set me back 10K with everything those headers on e bay looked promising though and the carb is a cheaper way to go.so 3k for turbos 600 headers. 1000 carb , ??

  13. #11
    mo balls than $cents$ IMPATIENT 1's Avatar
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    Quote Originally Posted by smitt19 View Post
    I know mark and he is making crazy power with that,looked at it the last time it came a part. changing to efi and turbo would probably set me back 10K with everything those headers on e bay looked promising though and the carb is a cheaper way to go.so 3k for turbos 600 headers. 1000 carb , ??
    shit man, a quickfuel carb for 650bucks will meet the power level you're wantin same carb i put on my single turbo ls 5.3 blow thru pumpgas motor

    Dare to be different, if it turns out great you can claim you planned it that way.

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  14. #12
    mo balls than $cents$ IMPATIENT 1's Avatar
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    borg warner s475 turbos are only 600 each,lol mark and my uncle are running them

    i've looked at those edelbrock ss upswept bbc headers, they hold some promise as turbo headers. 500 bucks for set of those from doug herberts, you prob could sell your old headers and get that

    my uncle is running 70buck wastegates that work great and really control boost well, 50buck blow off valve. he did buy the headers from mark but no reason you couldn't make the edelbrock headers work if you had the room.
    Last edited by IMPATIENT 1; 11-13-2009 at 06:13 PM.

    Dare to be different, if it turns out great you can claim you planned it that way.

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  15. #13
    mo balls than $cents$ IMPATIENT 1's Avatar
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    here's ya a copy and paste to ponder on

    Our Q-750-BAN was tested on a 540 cid Big Block Chevy using a ProCharger F-2 supercharger produced a mind numbing 940 lb-ft or torque and 977 HP at only 11 ¾ lbs. of boost. (Reference: Car Craft Magazine, [PRIMEDIA Inc.] October, 2005 issue.)

    same carb i bought, same carb you could run, on PUMPGAS

    Dare to be different, if it turns out great you can claim you planned it that way.

    Jetboatperformance.com

  16. #14
    Senior Member smitt19's Avatar
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    Default reliable

    [QUOTE=DMOORE;896952]So right now you have a reliable 1000hp pump gas motor, and ya want to change. I wouldn't change a thing. Freshin' her up and run it.

    Reliable is a stretch, had some valve train issues, bought jessels, lifter exploded,got the neddlesless iskys , ran to hot , get a different water pump,
    but its never been blower, or boost related ,no melt downs though

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