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

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  #1  
Old 11-23-2009, 10:55 AM
91 12valve's Avatar
Diesel Fan
Status: goin broke

   

Default K&N air filters

i have been told that you dont want to put K&N air filters on your truck because the filter will allow the oils out of the filter pass by and hurt the turbo, does any body know
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Old 11-23-2009, 11:19 AM
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I've heard the same thing. I have a K&N in my truck, because it was in here when I bought it. I also just dismantled my turbo to upgrade it and saw nothing bad at all. There was no residues or anything. I've just been lazy and haven't gotten the BHAF yet.

muskrat's Sig:
93 Dodge W250 CTD
Auto Tranny
Tweeked IP
366 Spring
M&H M4 Fuel Pin
H1C/60mm Wheel/14cm Exhaust Housing
4" Exhaust Out 5" Stack
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  #3  
Old 11-23-2009, 11:40 AM
Diesel Fan

   

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hey muskrat, what is this bhaf unit you are talking about? i did quite a bit of looking around for my 91 and all i came up with was k and n or an air raid. wound up purchasing the kand n.
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Old 11-23-2009, 11:55 AM
muskrat's Avatar
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BHAF= Big Honkin Air Filter. They are just an extra big filter that fits our air intake. They require a special home brewed mount of one sort or another. The "old smokey mount" is popular. I'll try and hook you up with more info in a moment.
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  #5  
Old 11-23-2009, 12:06 PM
Diesel Fan

   

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i appreciate it.
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  #6  
Old 11-23-2009, 12:40 PM
muskrat's Avatar
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Found it. Here is a thread with the part #s for our trucks and directions for the mount.

http://www.dieselbombers.com/1st-gen...7-air-box.html
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  #7  
Old 11-23-2009, 06:07 PM
Diesel Fan

   

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thanks musk! i found my project for tomorrow.
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  #8  
Old 11-23-2009, 06:33 PM
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I have K+N's in both of my trucks. Work fine for me.

Richie O's Sig:89 Dodge W250, auto, 3.07 factory l/s, 4 inch stans exhaust, S300G 57/64/14, powerstroke intercooler 297 HP. 93 W250 extended cab, rag, 4.10 l/s , 6x16's, 60mm GDS H1C with 16 cm exhaust, work in progress.301 HP 92 W250 with a NV4500.
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  #9  
Old 11-24-2009, 07:39 AM
Diesel Fan

   

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I,ve run K&N and Green HP air filters - I'm currently running a Green HP on a custom built intake to the turbo. I have not had any trouble with either one. The key is to not over oil either one.

Bob

Bob Beauchaine's Sig:1993 CTD 4X2 Horton Fan, Green HP Air Filter, Custon Air Intake, Banks IC, Tim Worline Intake Horn, 14cm2, PDRHX35, ATS EXH,15%+VE, Denny T Sage II, 3200 GSK DD3 Injectors, BD Exh. Brake, 4" Rip Rook EXH, NV4500HD, SB Clutch & Guages Snow WM -394/888 on #2 - 441/889 WM
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  #10  
Old 11-24-2009, 07:49 AM
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I understand it as…

If you put to much oil on the filter some oil will pass though the filter and end up on down stream electronics. A stock filter will trap more dirt then a K&N if it’s not oiled (I have been told).

jessy's Sig:15 2008 Freightliner dump trucks
7 2000 Mack dump trucks
8 mix and match work trucks
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cummins KN air filter problems - Zuula Search This thread Refback 06-27-2010 11:24 PM
K&N air filters - Diesel Bombers This thread Refback 12-23-2009 12:20 AM

 
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