Put a nicktane on then you can run CAT filters in the factory position. Double the filters are always better then 1.
Sent from my SCH-I435 using Tapatalk
AirDog and Cat 1R0751 2 micron absolute filter
- Thread starter coker6303
- Start date
Sent from my SCH-I435 using Tapatalk
Remember, even a single filter can pass junk. And if you get a bad batch of fuel would 1 filter be better then 2?
Sent from my SCH-I435 using Tapatalk
Sent from my SCH-I435 using Tapatalk
then when the stock filter head keeps bleeding down you will eventually get tired of it and delete it anyways..filters are cheap just replace every oil change and you will be good..they say replace factory every other oil change so replacing a cat one every change doubles that..
No need for 2 filters if you keep them changed and use a quality element like the cat filter. That's a silly excuse.
Silly is pulling 500 miles from home and getting a bad batch of fuel and not trashing the injectors or cp3
But the truck stop paid for cleaning my tank and we slept in the camper on their yard while they pulled the tank and flushed all the lines. They even thru in 4 Cat's for my AD and the nicktane.
Sent from my SCH-I435 using Tapatalk
But the truck stop paid for cleaning my tank and we slept in the camper on their yard while they pulled the tank and flushed all the lines. They even thru in 4 Cat's for my AD and the nicktane.
Sent from my SCH-I435 using Tapatalk
This is true, except then you have no protection for anything that may come off the inside of the hoses/piping after the last filter.
Myself, I would run the 2 micron as close to the engine as possible and run the 8 or whatever you want at the lift pump. Stock GM filter is 2 micron.
Over time the hoses start to deteriorate and can start coming apart inside. Several have experienced this to the point where they couldn't even hold rail with a lift pump because pieces were coming off like a flap sort of restricting flow. Plus depending on how many years you ran without filters between the tank and your stock filter and the quality of the fuel you run, a build up like a scale can happen that over time which starts to come off over time. I've seen it inside of the hard lines on my own truck.
My point is that in a common rail fuel system, cleanliness is key. Many claim they have never had a problem so it's ok, but you are rolling the dice. There is a reason EVERY diesel has the filter close to the engine.
They way I see it, as long as at the CP3 you see a good positive pressure from the lift pump and at your max PW rail pressure also holds then run the filter. Even if you need 20psi at the pump to get 10psi at the cp3.
My point is that in a common rail fuel system, cleanliness is key. Many claim they have never had a problem so it's ok, but you are rolling the dice. There is a reason EVERY diesel has the filter close to the engine.
They way I see it, as long as at the CP3 you see a good positive pressure from the lift pump and at your max PW rail pressure also holds then run the filter. Even if you need 20psi at the pump to get 10psi at the cp3.
When you install the airdog just run a line directly to the engine bay, bypassing the factory hard line.
might just get the nicktane adapter and run two 2 micron filters.
I spent the money on the nicktane filter adapter, then spent the money on a filter housing repair kit and still had the housing leak.
I've put 100k on my truck with the factory filter deleted and haven't had any issues.
I've put 100k on my truck with the factory filter deleted and haven't had any issues.
Hose doesn't last forever and is far more susceptible to deterioration than hard lines. And the build up happens inside the hoses as well. Not just the hard lines. If anything, I would suggest cleaning or replacing the hard lines with larger ones.
Also hose itself still doesn't filter any dirt or contaminants that can still come off from inside the new lines or from changing the dirty under the truck filter where it is more likely to be caked in mud and dirt than the one in the engine bay.
In a race or sled pulling application, I would say go for it. You don't go through near as much fuel as a DD and dirty fuel is the least of your worries. On a DD, not a chance. You have to remember it's not usually an immediate all of a sudden problem that contamination usually causes, but excessive and premature wear over time.
Speaking from experience here. You guys do what you want though.
Also hose itself still doesn't filter any dirt or contaminants that can still come off from inside the new lines or from changing the dirty under the truck filter where it is more likely to be caked in mud and dirt than the one in the engine bay.
In a race or sled pulling application, I would say go for it. You don't go through near as much fuel as a DD and dirty fuel is the least of your worries. On a DD, not a chance. You have to remember it's not usually an immediate all of a sudden problem that contamination usually causes, but excessive and premature wear over time.
Speaking from experience here. You guys do what you want though.
The stock filter Acdelco, Racor/Parker is 4 micron, the CAT UHE (ultra high efficiency) see the link below page 11 for the CAT at <4 micron and not as great as some may think, maybe just the cost...
http://albahar.com/wp-content/uploads/2014/09/SEBU9208-00.pdf
Last edited:
99% sure the stock filter is 2 Micron. GM made the change from a 10 micron to 2 in late 2003 or early 2004.
Here's a brochure on the high efficiency filter like the 1R0751 we are using. Catches 98% of particles 2 micron and larger. (2 micron absolute)
The nominal rating will be 50% if i'm not mistake. So you are filtering down A LOT better than stock. :thumb:
https://catoilandgas.cat.com/cda/files/760463/7/pehp9522_01.pdf
Looks like the factory is 4 micron ABSOLUTE which isn't bad at all. Thats a big difference than 4 micron nominal