BHAF recommendations?

[Duluth Diesel]

The only K&N I ever had was a stock element replacement on my old 1986 Ford Ranger with the fuel injected (first year) 2. 9 V6. Inside the stock airbox, on the wrong side on the K&N, I found leaf chunks and bugs. Filters real good! That was the last time I EVER touched a K&N, and I did properly maintain and oil that thing.

 

[RankRam]

Shooter thanks for the info on the 3rd generation trucks and BHAF. I'm ready to do the same, only question I have is what did you do with the air temp. pressure sensor that hooks up to the airbox lid?



Again thanks for the info.

 

[Buffalo]

I went to an A. F. E. Dyno Days event put on by the So. Cal. Rattlin Rams, two weekends ago. An engineer from AFE gave us a seminar on air filters. They have a rather sophisticated air flow testing machine on which they tested a members BHAF. They, then, tested their own Magnum Force and ProGuard-7, cone shaped, filters. Both of their filters tested better flow characteristics than the BHAF. They, then, ran the machine without any filter. There was more of a restriction without any filter than with the AFE products. I asked the engineer "How could that be?" He said, basically, that the filters are designed in a way that the air is directed into the intake system evenly and therefore allows more air into the intake. Without any filter, the air is trying to get into the intake from all different directions and doesn't "turn" into the the hole efficently. If the hole is 4" , by the time the air curves into the hole you may only be getting 2" of air into the center of the hole. All in all, the seminar was very interesting. I, also, wonder if this controlling of airflow might make an argument for the TAG, that we keep hearing about? Thanks. Joe.

 

[mediccummin]

I think the number on that deal at AFE showed the BHAF at 279CFM as compared to 600CFM for the Magnum. The progaurd flowed 2-5% less than the Magnum. The open 4" pipe flowed 4?? somewhere around there. This was all done at the same Inch of water. HAnderson has the exact numbers he is the one that challenged AFE that the BHAF flowed allot of air. HAnderson is now running a Magnum Force filter that AFE gave him for free, and he also gained 8 HP with the AFE as compared to the BHAF. I will call him and have him post the results they gave him. It was very interesting.

 

[moparguy]

BHAF, I speak with a bit of background as the guy who discovered the filter now commonly known as a BHAF in a NAPA catalog a few years ago.



It's a great upgrade from the stock setup. It's been defended as the greatest thing since sliced bread and yes it is a good big old great looking air filter that looks like it belongs under the hood of a Cummins Dodge. However if you're looking for the max airflow possible, it may not be for you. If you're looking for a filter that is retaliative speaking, low cost and filters better than the stocker, it's worth a look.



For what it's worth, I'm running a AFE ProGuard7 in my old BHAF housing, it didn't lower egt's over the BHAF, but I like it.



RJR

 

[DBrickel]

Originally posted by KLough

I used an AH1141 it was a direct fit

Klough, the RH1141 is for marine application. Some use them I guess because they feel they are more durable in case they get wet. They are also a little smaller than the RH19037.

I just bought one to see the difference between the Rh1141 and the Afe mega-canon. I paid $40. from Napa for it. I think I prefer the Afe. I have no scientific comparison's, just my opinion. The Afe feels like it has more airflow.

 

[KLough]

What is the AFE I have read about it but not sure what it is (drop in, a whole new setup)?

 

[mediccummin]

They offer a drop in , modified box with cone filter, whole new box with cone filter. Price ranges from around 50-500. Advanced Flow Engineering out of Corona Ca. We just had a Dyno day there and man what I nice set up.



Check out Mr Bobs dist. in the links I think he might have some prices listed.

 

[DBrickel]

I just switched back to the Afe. I think the Bhaf is more restrictive. The exit opening is smaller so I think the air flow bottlenecks at the exit point to the turbo tube. Again not scientific just my observation. the bhaf is a little quieter though. Don't know what I'll do with the bhaf.

 

[RSarvie]

Can anybody give me the specs on what filter I can bolt on in place of my K & N filter that will fit the FIPK housing? I would like to keep the K & N heat shield and intake tubing in place, and just replace the filter itself. Thanks.

 

[jcarew]

Hi I use bhaf #19002 (marine version) the big difference is the wire mesh on the inside also if it ever gets wet or tries to collapse internally for any reason the inner mesh would keep the filtering media from getting into the turbo. Sounded like good reasoning to me an thats what I use for 46k. This filter is more expensive than the regular bhaf, probably because of the word MARINE. I also use the Outerfilter kind of a nylon sack that the bhaf fits in an catchs lots of dust before it gets to the main filter. I change an wash the outerfilter at every oil change.

 

[DBrickel]

Originally posted by jcarew

Hi I use bhaf #19002 (marine version) the big difference is the wire mesh on the inside also if it ever gets wet or tries to collapse internally for any reason the inner mesh would keep the filtering media from getting into the turbo. Sounded like good reasoning to me an thats what I use for 46k. This filter is more expensive than the regular bhaf, probably because of the word MARINE. I also use the Outerfilter kind of a nylon sack that the bhaf fits in an catchs lots of dust before it gets to the main filter. I change an wash the outerfilter at every oil change.

I wonder what the difference beteen the marine RH1141 and the #19002 is. I paid a little over $40. for the 1141. The AFE I bought I paid about $220. that is with the maouting heat shield box. With the bhaf there is no heat shield unless you fabricate your own-- at least I haven't seen any.

 

[Gypsyman]

Originally posted by Shooter

Both the 8. 5" and 10. 5" will also fit the 3rd gens. I have the 8. 5 in right now because I knew it would fit with 45* mandrel bent elbow. Slam bam thank you mamm it was in, thaere is room for 10. 5 but will have to make a insulator for pos batt cable as there will be about 1" between wire mesh and cable.

I still have a couple 10. 5's left from my 2nd gen that will replace the exisiting 8. 5" one.



SEE readers rigs



I ran a 10. 5 for 80k mi on the 2nd gen after trying an AFE drop in that developed pin holes. NOT GOOD in the dusty desert. The turbo noise is less with the BHAF, than oiled or stock box paper, in previous and present truck. 2nd gen had DD2's, EZ and PDHX35 plus more.



Why mess with washing and oil when the paper is good for years and no muss no fuss drop in.



JMHO

Can you tell me more about the install and sensor hookups for the BHAF? Gotta have one! Any drop in EGT's from the stock box filter?

 

[Gypsyman]

Shooter,



Thanks for the PM!

 

[RankRam]

Originally posted by RankRam

Shooter thanks for the info on the 3rd generation trucks and BHAF. I'm ready to do the same, only question I have is what did you do with the air temp. pressure sensor that hooks up to the airbox lid?



Again thanks for the info.

Hey shooter I posted on pg. 2 of this thread could I get this info. please.



Thanks.

 

[Gypsyman]

RankRam,



I don't know if Shooter is monitoring this thread, but he told me that he attached the sensor near the radiator in open airflow. I'm going to do this install but I'll fab a weld on adapter/mount for the AIT. I'll post pictures when it's complete and maybe offer the complete elbows if there is any interest. I'm also going to fab a diamond plate box to shield the BHAF. Hope this helps. Shooter, not trying to step on toes, just trying to get the information out!

 

[RankRam]

Gypsyman thanks for the response.



Keep us posted on your project.

 

[Gypsyman]

Will Do. I'm out...

 

[JohnE]

Anyone else getting a BIG price increase? Cummins N Power just jumped from $33 to $48 for the AH19037 filter.



I'm going to tap the filter minder into my BHAF and run it until it sucks. An Outerwears sock really stops a lot of dust and protects it from water, too.

 

[Gypsyman]

Who carries Outerwears for the BHAF?