blown alcohol engine
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blown alcohol engine

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    Default blown alcohol engine

    I have seen a few people do this and it doesnt seam to be a good idea on a high hp engine, they are running one of those external balance blower hub he is making every bit of 1200hp and he has been runing the motor for 2 or 3 years now with very little maintenance done to the engine. It seam like on a engine like that you would want to go ahead and do a internal balance on the motor and they are turning the thing 8500rpm. The deal is i dont have a bunch of money either and have a few good motos that are external balance engines could i throw one of those hubs on it with a 871 blower and do the same thing. The other thing is my motors are not oringed how much boost can you get away with with oringing the block.

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    they make blower hubs for internal and external balanced motors, depending on your blower snout, if its long then u can run regular blower damper/balancer, if its short then u will have to run a hub. what head gaskets are you running? that will give u an idea of how much boost, some have ran regular fel-pro's and got away with more than I would try.

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    Default blown alcohol motor

    Im running fel pros right now here another deal all of my motors have 43cc domed pistons in them thinking that might be a little to much compression for a blown alcohol deal hell maybe i could find a set of heads with a massive combustion chamber and lower the compression some the heads i have a old brodix and they are stamped saying they have 107cc chambers so im up there in compression right now

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    Default blown alcohol

    I have never seen a blown alcohol engine running one of these before at a boat race this was at a sand drag deal i went to, I also realize those guys will take parts out of there mommas car to put a motor together and go race

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    Yer kidding right ?

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    Default blown alcohol

    Kidding about what

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    Default blown alcohol

    Im not kidding about anyhting i have been to i bet 500 boat races since i was a little kid and most blown alcohol guys that i have seen internally balance there motors and run the regular blower hub, or are you talking about me running fel pro head gaskets, and keep in mind i have been running those head gaskets on all of my motors and havent ever blown a head gasket, but you have all this talk all the time about there fancy ass mulit layed gaskets having problems all the damn time. I have also ran a few sets of copper gasket and havent had any problems with them either i think the one i use were the sce or something like that. But yes that was the first time i have ever seen a big ass goffy looking counter weighted blower hub like that running on a motor like that this dude had a nice dart block,nice blower a brand new set of brodix heads you would thing he would have put a little more into balancing a engine like that.

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    Default blown alcohol

    On my 477 i have a set of je 43cc domed pistons in it says on the je website with a set of 124cc heads it would be 11.7 compression that would be fairly close for a good blown alcohol deal right

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    Quote Originally Posted by matt wheeler View Post
    On my 477 i have a set of je 43cc domed pistons in it says on the je website with a set of 124cc heads it would be 11.7 compression that would be fairly close for a good blown alcohol deal right
    We use 10.25,,,, but, there are many that use the higher comp.

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    Quote Originally Posted by matt wheeler View Post
    Im running fel pros right now here another deal all of my motors have 43cc domed pistons in them thinking that might be a little to much compression for a blown alcohol deal hell maybe i could find a set of heads with a massive combustion chamber and lower the compression some the heads i have a old brodix and they are stamped saying they have 107cc chambers so im up there in compression right now
    You can run quite a bit more compression on alcohol then on gas. Alcohol usually want around 10.5-11:1 on the blown deals.

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    Quote Originally Posted by Need4Speed77 View Post
    You can run quite a bit more compression on alcohol then on gas. Alcohol usually want around 10.5-11:1 on the blown deals.
    The 'Red Baron' king of CFW is at 13-1 at 27lbs. of boost!
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    Quote Originally Posted by steveo143 View Post
    The 'Red Baron' king of CFW is at 13-1 at 27lbs. of boost!
    Yeah but I don't suggest that anybody try that with an off the shelf JE nor the standard whimpy ass .150 carbon steel pin.
    Even 11.5 to 1 is testing fate with the standard .150 pin



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    Felpro MLS gasket Matt. Good for anything but full out drag boost and compression levels. That's all I run.

    Over 10:1 + boost = higher tuning skills. over 11:1 the tune window is tight.
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    Default blown alcohol

    Im just going to build another motor for the blown alcohol deal theres a few things that are not done to any of my motors, the crank is not double keyed,no orings,high compression

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