patriot pearl blue

just passing the word that NAPA 6637 air filter which is a smaller version of the one on my 02, barely fit on the 03 cummins last night- but it works just fine.<br><br> this 6637 filter has a 4 inch inlet, and the factory rubber hose also has a 4 inch inlet, but with a little stretching it went right over the hole- then the factory clamp will not fit, so we just used 2- 2 1/2 inch hose clamps and made one larger 5 inch hose clamp<br><br> all you do is pull the 1 10mm nut off at the front of the factory air box, and pull the entire box up and out-<br><br> the 03's have a air inlet temp sensor, which we have temporarily tied to the front core support-<br> i will post back when we drill the 1/2 inch hole in the 6637 filter to mount the air inlet temp sensor.<br>BRYAN<br> <br>from the rear end dyno, it does seem to spool quicker, and at least there is something to listen to under the hood :

PADZZ

Newbie here. Seen BHAF all over these forums and still don't know what it stads for??? I take it the 'AF' stands for air filter? How bout the BH?

PourinDiesel

Big Honkin Air Filter.<br><br>--Justin

patriot pearl blue

http://www.turbodieselregister.com/f...;postid=194072<br><br>that is what it looks like on a 2002 and older<br><br>the 2003 is mounted all the way up front

Nevada

Two questions Patriot:<br><br>Photos?<br><br>Is there enough space for heat shield, is one necessary?

patriot pearl blue

the air filter is 2 feet or more from the turbo, so i dont think a heat shield is necessary <br><br> the plastic on the ends of the filter, is thick heavy duty 1/4 inch or better- i have been running the BHAF on my 2002 for 2 months and its 6 inches from the turbo with NO HEAT SHIELD- ive towed over 2000 miles and there is enough air flow thru the engine bay to keep the outer area around the filter cool to the touch <br>once i get the chance to work on the 03 truck [daily driver] i will take some pics for you guys to see it-<br><br> we did have to work at getting the factory rubber elbow over the 4 inch filter, because they are both 4 inch!!<br><br> BRYAN<br><br>

CaptainDD

The BHAF filters are used on commerical cummins and marine engines. The are a paper type throw any filter. The ones for my boat cost $70 each and I am thinking about converting to an AEF on my boat. I will have to add a plastic extension to mount a different type filter. Cummins Marine needs to make it so the filter or extension can screw on to the turbo. I have always had a problem with the filters coming loose and falling off on my boat after running thru heavy sea's. The clamps don't hold vary well. I could slow down but that would take all the fun out of the ride.

Push Rod

[quote author=patriot pearl blue link=board=20;threadid=7724;start=0#74600 date=1038855168]<br> the air filter is 2 feet or more from the turbo, so i dont think a heat shield is necessary <br>[/quote]<br><br>Until the Scotty III is done, I'll probably be running an open aFe. When Scott and I were looking at filter locations, my first thought was that an open filter would want a heat shield, but not to shield from the turbo heat. I think I'd want one stuffed beside the rad/cooler to deflect that hot air away from filter element.<br><br>Rod

patriot pearl blue

no complaints about having the open filter with no heat shield yet-<br><br> im pretty sure that at 40 mph and above on this 03, there will be enough fresh air flowing to the open filter- <br> no need for a heat shield just yet-<br><br> i made a 800 mile trip to arkansas about 1 month ago with my 02 in the sig-<br> i had just installed the BHAF on it, and deleted the fan a few months ago when we had a cold snap here back in october-<br><br> well, i still dont have a heat shield on it, i dont have a fan on it, and i got caught hauling a car with trailer in st. louis dead stop traffic for 45 minutes-<br> it was 63 degrees out that night!!!!!<br> the truck never went over the tic before 190 even sitting in dead stop traffic, and i never shut the truck off <br> granted i did have the heater cranked up, cause i was chomping at the bit that she might over heat-<br><br> no problems yet on either truck-<br><br> but once this summer hits i will be making a heat shield out of diamond plate to keep the heat off my BHAF on the 02<br><br>CHEERS