I've had my BHAF sitting in my garage the last month , but
haven't had time to build my heatshield. Can I install the
BHAF temporally without the heatshield without damaging
it or the outerwear. I don't want it flopping around or getting
holes poked in it. How do you secure it without the heatshield ?
Going camping this weekend and want to put it on before we leave.

 

I did. I still dont have a heat shield. Ill do one someday...

 

zip tie it or make some temp straps that use the air box mounting studs to hold it in place.

 

I had one built and left it on for about a month till it just started rattling like hell and I was worried about it hitting my a/c line. I took it off and didnt notice any difference in EGTs. One of my friends also said he did a test with and without the heat shield and at the filter it was only like 10* hotter without one. So I threw it in the garage and now I have less weight.

 

Put the mounting plastics back on the studs to protect the BHAF and cover your AC lines with foam or hose to protect them from rubbing on filter can. Never have had a heat shield and probably won't.

 

I built one from aluminum boat sections ( being in the business....), and added trimlock all around edges to keep it from rubbing and cutting.
I am going to install a temp sending unit and use a switch to read the transmission temp gauge. I can switch to intake temp or transmission temp.

I'll post a picture asap.

 

I used a piece of 1/4" plywood. I drilled 2 holes for factory studs and nuted it in place. A couple packing straps to hold the filter in place.

 

The stock airbox pulls air from the fender, pretty much ambient temp.. a "BHAF" pulls hot air from the engine bay. Take your pick.

If you want it louder, do the larger cone filter. If you want to keep the filter cleaner longer, and have cooler intake temps, stick with stock airbox and a k/n drop in or similar...

 

How do you figure that? The BHAF will last 3-4 times as long as a stock drop in (more if you have a prefilter). Also, the BHAF is especially good in dusty conditions (thats what the were designed for)

The stock airbox does not seal well at all. As for the K&N, put it on your gas truck or scooter....not on your Cummins. JMO.

 

I agree with Dr. Evil...

K&N is great for the track or city driving on little cars...

But you Cummins draws in larger quantities of are compared to a car. A oil / cotton filter will plug faster in a dusty / dirty environment. So basically if you want to get the best out of your truck stay to a BHAF (or paper element)...

The proof is easy... My little push lawn mower has a foam /oil (air filter) it seem to plug quickly and require washing more often. Compared to the lawn tractor that has a paper element. The paper element has NEVER been replaced yet in 15 YEARS! (Just blown clean with compressed air!) The tractor doesn't use any oil or smoke. The pusher mower needs oil (all the time) and it smokes... Hmmm... Is it because the filter doesn't keep the dirt out as well...

 

With the stock filter box, I replaced my element 2 times per year. I replace a BHAF every 18 months or so.

Never tried a K&N or Amsoil or the other brands of oiled elements so this is based on stock element only. Never have figured out why the stock element got grimy that quick.

 

BWT, if you really want a K&N panel filter - PM me....I have one for sale

 

I have the BHAF. I just used the rubber washers/gromets from the stock air cleaner and mounted it on top. used zip ties to keep it from moving. 21/2 months and it doesn't look dirty at all. I used the foster truck heat shield. It really didn't make any difference in Egt, but I like the idea of having the Big filter. I had a K$N on my 99 and it left oil residue on my turbo. I probably didn't oil it correctly, but I am not going to use one again. I was also cleaning the K&N all the time. The real reason I went to the BHAF is because some shop monkey at the oil change shop decided to do the ????? point inspection instead of just changing my oil and cracked my stock filter housing. I got home and the cover wasn't even attached I think I'll make the time to do my own maitenance from now on.

 

I put a BHAF on mine over a year ago, no heat shield, still looks good. No egt problems yet. I'm happy with it.

 

I have airaid (similar to k&N, alittle cheaper) stock airbox drop in. I install another foam (uni filter) cool air intake at the front bumper where it can fit. the pipe leading from turbo to the cool air I just used plumbing and heating pipe at local hardware store. notice egr lower faster at idle.