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CFM through a 504?


 
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Lamont
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PostPosted: Wed Dec 19, 2012 12:28 pm    Post subject: CFM through a 504? Reply to specific post Reply with quote

Does anyone have any idea how many CFM a 504 is breathing? Naturally aspirated or turbo either? I'm thinking I read somewhere or figured at one time that a 504BDT should be around 1100. I have no clue why I'm thinking that or even what rpm, load, etc. Just in my head. Thanks for any insight on this.
 
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RGMartin
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PostPosted: Wed Dec 19, 2012 12:37 pm    Post subject: Re: CFM through a 504? Reply to specific post Reply with quote

In a perfect scientific setting a NA 504 can only breath 292 CFM at 2000 rpms. Real world will be much less.



504 CI divided by 2(only drawing air every other time around) x 2000 rpm divided by 1728 (CI in a CF)
 
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Lamont
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PostPosted: Wed Dec 19, 2012 3:43 pm    Post subject: Re: CFM through a 504? Reply to specific post Reply with quote

Any idea what the Volumetric Efficiency, on average, of a diesel of that era would be? Most spark ignition engines were between 0.7 and 0.8. Would a diesel be close to that or better? My thought would be better, but?????
 
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massey 333
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PostPosted: Wed Dec 19, 2012 4:40 pm    Post subject: Re: CFM through a 504? Reply to specific post Reply with quote

This may be a stretch,but try Turbo Pre-Cleaners site or the company copying Turbo.one of them had it a few years ago when we were building our 970 up.
 
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LApuller
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PostPosted: Wed Dec 19, 2012 5:14 pm    Post subject: Re: CFM through a 504? Reply to specific post Reply with quote

You are way off if you think a older tractor motor will flow between 0.7 and 0.8. Actural flows are more like .45 to .55. A diesel is about the same.
 
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Lamont
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PostPosted: Wed Dec 19, 2012 6:38 pm    Post subject: Re: CFM through a 504? Reply to specific post Reply with quote

I don't doubt you are correct, but are you speculating or is this fact?
 
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LApuller
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PostPosted: Thu Dec 20, 2012 3:51 am    Post subject: Re: CFM through a 504? Reply to specific post Reply with quote

I have REAL air flow numbers from pulling tractors on a dyno. I have tested almost every type of tractor and have two different ways of testing the air flow.
 
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Lamont
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PostPosted: Thu Dec 20, 2012 6:29 am    Post subject: Re: CFM through a 504? Reply to specific post Reply with quote

Good enough. Have you tested any with turbos on them. If so, what kind of VE do they have? I would think to get good HP results, it would have to be in the 2 to 3 range, BUT that would mean 5 to 6 times the VE of NA engines. Is that possible?
 
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LApuller
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PostPosted: Thu Dec 20, 2012 8:31 am    Post subject: Re: CFM through a 504? Reply to specific post Reply with quote

I have dynoed turbo tractors but have never checked the air flow rates.
 
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RGMartin
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PostPosted: Thu Dec 20, 2012 9:07 am    Post subject: Re: CFM through a 504? Reply to specific post Reply with quote

Lamont wrote:
(quoted from post at 10:29:55 12/20/12) Good enough. Have you tested any with turbos on them. If so, what kind of VE do they have? I would think to get good HP results, it would have to be in the 2 to 3 range, BUT that would mean 5 to 6 times the VE of NA engines. Is that possible?


How much boost?
 
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Eldo case
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PostPosted: Thu Dec 20, 2012 4:15 pm    Post subject: Re: CFM through a 504? Reply to specific post Reply with quote

Don't know the answer but will say that a radiator hose used for a intake hose will collapse and make one smoke. Seen that happen!!!!!
 
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