1st Generation Dodge Cummins 89-93 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with Rotary Injection Pumps

denny t?

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Old Mar 20, 2012 | 09:48 AM
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trentowens92's Avatar
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Default denny t?

ok i have decided for the first mods to my truck im gonna get the spring and fuel pin setup(and gauges of course)

my question is,should i get the 3200 rpm spring or the 366 one?and what are the benefits of each.

also,which fuel pin do you guys run/suggest?i almost have my mind set on a denny t but i have heard some about the m&h ones so i was just wondering what all of yall think.
 
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Old Mar 20, 2012 | 10:01 AM
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sweetv8s10's Avatar
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They are the same spring.
 
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Old Mar 20, 2012 | 12:00 PM
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ive heard good things about denny t and m&h pins. basically the same things m&h just has more choices of pins. im running the m-5 pin and it deffinetly makes a difference.
 
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Old Mar 20, 2012 | 01:51 PM
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i have the denny t stage 2 in my 92. And i love it!
 
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Old Mar 25, 2012 | 12:01 AM
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Originally Posted by trentowens92
ok i have decided for the first mods to my truck im gonna get the spring and fuel pin setup(and gauges of course)

my question is,should i get the 3200 rpm spring or the 366 one?and what are the benefits of each.

also,which fuel pin do you guys run/suggest?i almost have my mind set on a denny t but i have heard some about the m&h ones so i was just wondering what all of yall think.
The 366 spring is the 3200 RPM spring. You can get springs that allow more RPM but I wouldn't recommend it as the VE doesn't make much power at high RPM anyways.

I've got a DennyT Stage II fuel cone and love it. The M&H cones have more options for the fuel cone ramp, but the DennyT Stage II and M&H 5 cone are pretty much identical.
 
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Old Mar 25, 2012 | 01:48 AM
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Originally Posted by peobryant
The 366 spring is the 3200 RPM spring. You can get springs that allow more RPM but I wouldn't recommend it as the VE doesn't make much power at high RPM anyways.

I've got a DennyT Stage II fuel cone and love it. The M&H cones have more options for the fuel cone ramp, but the DennyT Stage II and M&H 5 cone are pretty much identical.
Not trying to be rube I think you mean fuel pin? But also with higher RPM springs you need #60 valve springs or they will start to float at about 3600RPM's.
 
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Old Mar 25, 2012 | 08:20 PM
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my friends valves floated at 3400rpm. they suggest anything over 3000 to have them just to be safe
 
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Old Mar 25, 2012 | 10:11 PM
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Originally Posted by gregt1989
my friends valves floated at 3400rpm. they suggest anything over 3000 to have them just to be safe
I think it's 3600 people with 3200rpm springs don't do them. Mine will hit 3100 n not float them. Though it has no power that high.
 
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Old Mar 26, 2012 | 11:22 AM
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idk im just not gonna take the chance of letting them float because of my friends incident at 3400
 
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Old Mar 27, 2012 | 10:45 AM
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Originally Posted by 1stgenblowingsmoke
Not trying to be rube I think you mean fuel pin? But also with higher RPM springs you need #60 valve springs or they will start to float at about 3600RPM's.
The DennyT or M&H part people are buying is actually the cone. The fuel pin rides on the ramp of the cone, so I'm not really sure how the cones became known as pins.
 
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