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Old Oct 7, 2005 | 05:40 PM
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diesel compression ratios

does anyone have a chart that has compression ritios for various brand diesel engines?

afterthought; a chart would be ideal but rare, it would be great if everyone could give the type and size of thier diesel engines as well as the compression ratios and i will make my own chart, thankyou
 
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Old Oct 7, 2005 | 08:48 PM
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6.0l (03-04) = 18.5:1
 
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Old Oct 8, 2005 | 07:56 AM
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i seem to remember the 88 7.3 was around 22.5 to 1
 
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Old Oct 8, 2005 | 11:19 AM
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The Powerstroke from 99-03 is 17.5:1
 
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Old Oct 9, 2005 | 12:38 PM
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good start folks, any vehicle, any year, any diesel.
 
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Old Oct 9, 2005 | 01:20 PM
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94-97 PSD is also 17.5:1

good start folks, any vehicle, any year, any diesel.
That pretty much makes this a "general diesel" thread.....
Moved to proper forum
 
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Old Oct 9, 2005 | 05:37 PM
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thankyou, keep them comeing folks.
 
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Old Oct 10, 2005 | 11:30 PM
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pre power stroke 6.9 = 22.5 7.3 = 21

I have been reading,

Calvin
 
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Old Oct 13, 2005 | 04:07 PM
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6.0 Perkins Phasser 17.5
4.0Perkins Phasser 17.5
1004 Perkins no turbo 16.5
1006 Perkins " " 16.5
1004-4T " Turbo 16.1
1006-6T " Turbo 16.1
5.9 Cummins Turbo 17.6 innercooler
5.9 " N/a 18.5
5.9 " Indust,Turbo 16.5
GM 5.7 n/a 22.5
GM 6.2 n/a 21.5
ford 6.9L n/a 20.7


Hope this helps ran out of time will keep looking though my books latter

Dale
 
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Old Oct 16, 2005 | 02:26 PM
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thats great, the reason i need these is cause i am doing a diesel project and need to know the compression ratios to choose what engine to use, i need the highest ratio possible. thanks!
 
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Old Oct 16, 2005 | 10:43 PM
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What kind of project I am sure we would all gladly build it for you and let you have the credit.



an old 5.7 chev or 6.9 diesel would proly be your best bet for highest compression.



Diesel Rod
 
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Old Oct 17, 2005 | 06:17 PM
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well,,,aaa,,, i'll tell you guys more a little later, when i figure out if it is possible.
someone told me that some old dozers (humm, i hav'nt used that z botten in a while) oh sorry was i thinking out loud again, any way someone told me that some old dozers do not have glow plugs and their compression ratios were alot higher than normal, is that true?
 
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Old Oct 17, 2005 | 07:30 PM
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well most old tractors don't use GP's, as far I know the old 460 and 560 farmalls where the only ones that use them from IH, all the other I-6's didn't. Let me dig up an old book I have and see if it has CR for anything realy old.

Diesel Rod
 
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Old Oct 18, 2005 | 01:25 PM
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None of the Perkins use GP,s are Cummins, the DT466 didn,t have them eather.

Dale
 
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Old Oct 18, 2005 | 09:46 PM
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I dunno about that, I've got a Farmall 706 diesel that has GPs, and I'm pretty sure it's a Perkins I-6. I could be wrong though.

Dam good motor too!
 

Last edited by superrangerman2002; Oct 18, 2005 at 09:48 PM.
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