How reliable are those big hp motors?
08-07-2002, 09:17 PM
#31
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I agree, you can't beat cubic inches. You don't need chillers & blowers, just build a 701 CI merlin super tall deck, with a tunnel ram with two 1050's @9.5-10.5 to 1 and you will have more reliable power than you ever dreamed of. This will be the combo in my next CAT...
08-07-2002, 10:01 PM
#32
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Mountain motors
What is the magic ratio for dependablility???
Mine: 225 hrs. with no knock on wood hrs
540 ci : 620 lift, heavy worked heads, 10:1 comp, 93 fuel
683 hp @ 5700 on dyno
Don't like turnin one that hard so
675 hp @ 5500 on dyno so at the prop would be???
This is guess work.
-30 hp for drive
-20 hp from dyno headers to CMI's elbow top
-10 hp accesories
-------------------------------------------------------------------
675 - 30 - 20 - 10 = 615 hp @ prop.
615 hp / 540 ci = a ratio of 1.139
701 ci x 1.139 = 798 hp at the prop
What do you think? Is 800 hp on a 701 ci tooooo conservative?
So what is the cost of this motor if I buy parts at retail and assy. myself. Be easy my wallet is thin, Mike
Mine: 225 hrs. with no knock on wood hrs
540 ci : 620 lift, heavy worked heads, 10:1 comp, 93 fuel
683 hp @ 5700 on dyno
Don't like turnin one that hard so
675 hp @ 5500 on dyno so at the prop would be???
This is guess work.
-30 hp for drive
-20 hp from dyno headers to CMI's elbow top
-10 hp accesories
-------------------------------------------------------------------
675 - 30 - 20 - 10 = 615 hp @ prop.
615 hp / 540 ci = a ratio of 1.139
701 ci x 1.139 = 798 hp at the prop
What do you think? Is 800 hp on a 701 ci tooooo conservative?
So what is the cost of this motor if I buy parts at retail and assy. myself. Be easy my wallet is thin, Mike
08-07-2002, 10:12 PM
#34
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900's, honest 900's probably 60 hrs with no hic-ups. I'm planning on 250-300 hrs between rebuilds. My normal cruise is 3000-3500 rpms so I'm not out there running the snot out of them every time I go out. But,HELL you let Stinson pull up beside and I'll blow my **** to smitherinzes to out run him 
Robert
Robert
08-08-2002, 03:17 PM
#36
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Originally posted by Tonto
900's, honest 900's probably 60 hrs with no hic-ups. I'm planning on 250-300 hrs between rebuilds. My normal cruise is 3000-3500 rpms so I'm not out there running the snot out of them every time I go out. But,HELL you let Stinson pull up beside and I'll blow my **** to smitherinzes to out run him
Robert
900's, honest 900's probably 60 hrs with no hic-ups. I'm planning on 250-300 hrs between rebuilds. My normal cruise is 3000-3500 rpms so I'm not out there running the snot out of them every time I go out. But,HELL you let Stinson pull up beside and I'll blow my **** to smitherinzes to out run him
Robert
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