Engine/Transmission (1998.5 - 2002) AFE or BHAF?

[EGaskamp]

I've seen a lot of people that are using the BHAF in high HP applications. Which do yall think flows more air and is worth the money. I need something that will flow lots air for when I get the turbo. The reason I'm asking is because My AFE is so dirty it's beyond cleanable. I just wanted to find the best filter for the money. Also, where can I get a BHAF? Thanks



Eric

 

[TMills]

if your afe is that dirty you might want to look into a BHAF. In my opinion the filter cleans the finer particles out better and doesn't require maintenance.

 

[jcarey]

TST sells them:



http://www.tstproducts.com/browseproducts/94-02-Big-Air-Filter.html

 

[HeavyHauler]

I believe that pretty much anything will outperform a BHAF. The BHAF has no way of funneling the air to the turbo and it seems to me that the turbo has to suck the air by creating a vacuum.



I would recommend a Scotty II. It's cheaper than the AFE and is a true Ram air induction through the cowl. The AFE is a good system too though. I removed my BHAF after that revelation that I mentioned above hit me.

 

[redfuelrules]

"I believe that pretty much anything will outperform a BHAF. " - HeavyHauler

Not too sure about that. I've been very satisfied running BHAFs on Vermont's dusty dirt roads and on jobsites in the summer time. B/c of all the dust, I wouldn't feel comfortable running a reusable filter in my situation. I've had notably less black smoke running the BHAF with my EZ than I did w/ the stock element or drop in K&N. Besides, funneling air sounds quite cheesy. Funneling beer on the other hand...

 

[C. Harlan]

Eric- How is it beyond cleanable?? I am sure if you clean it multiple times, you should be in the safe. If you are thinking of throwing it away, let me know. . I would be glad to take it off your hands!



-Chris-

 

[HeavyHauler]

"I believe that pretty much anything will outperform a BHAF. " - HeavyHauler

Not too sure about that. I've been very satisfied running BHAFs on Vermont's dusty dirt roads and on jobsites in the summer time. B/c of all the dust, I wouldn't feel comfortable running a reusable filter in my situation. I've had notably less black smoke running the BHAF with my EZ than I did w/ the stock element or drop in K&N. Besides, funneling air sounds quite cheesy. Funneling beer on the other hand...

I was referring to the fact that another type of filter will get the air to your turbo more efficiently, not the fact that it has the capability of flowing more air than something else or it's filtering capabilities. I'm not trying to knock your BHAF - I ran one for a year.



But the fact is, the way the air inlet is designed and angled on the Dodge, some or most of the air that comes through there is simply going out the other side of the filter and not directly into your turbo, therefore the turbo gets the majority of the air from a vacuum. If you can't understand that or think that's "cheesy", then maybe you should retake your high school physics class.



Now a BHAF with a Mallory Mount is a different story, that blocks the air from potentially escaping and doubles as a heat shield...

 

[EGaskamp]

The only reason I was afraid I wouldn't be able to clean it good enough and it would start pulling dirt into the turbo. I do want to try and clean it but it's a pain in the @$$ to get the AFE cleaning kit. Would the K&N kit work? If not, why? Thanks



Eric

 

[Nyoest]

???

It doesn't matter what air filter system you've spent money on they ALL have to pull a vaccum between the filter and turbo. As far as air going through the far side of the filter well.....





Neal

 

[Gary - K7GLD]

"I would recommend a Scotty II. It's cheaper than the AFE and is a true Ram air induction through the cowl. "



IF t here is so much positive airflow to the Scotty thru the cowl area, what keeps water out when driving in the rain?



AND, the filter-minder on the BHAF is a pretty good indication of air flow or restriction:



#ad




As to any superiority of the Scotty or similar setups over the BHAF, have any tests been done to actually check that out?

 

[Joseph Donnelly]

TDR #37, p. 26 showed AFE 6 hp above BHAF on the Dynojet (574 vs. 568 hp).

 

[Neibe]

Lets get one thing straight air is sucked into a n engine not forced so I don't see any problem with the big round BAHF.

 

[Gary - K7GLD]

"TDR #37, p. 26 showed AFE 6 hp above BHAF on the Dynojet (574 vs. 568 hp). "



Not to be a smart%$#, but B. F. D. !



We see more variation than that from one dyno run on the SAME vehicle, same day, NO changes... Tally up the cost-per-HP gain, then figure if the 6 HP is REALLY worth it!



Sorry, I know I asked if tests had been run, and you supplied the results, it's just that for all the ballyhoo about the superiority of the Scotty, I would have expected something more substantial to justify the cost (over and above the BHAF) and work involved to install one...

 

[jcarey]

Below is some info on the AH19037 and the AH19004 (marine version). The maine version flows very well (RATED FLOW 918. 19 ft3/min). However it is about twice the price.



What do you guys think? Would the Outerwears prefilter would be necessary with the marine version?



PRODUCT INFORMATION

Part No : AH190370

DEFINITION AND MAIN DIMENSIONS

Part Type AIR FILTER HOUSING

Configuration HOUSING

Flow Direction OUTSIDE/IN

Part Function HOUSING

END OPENING HEIGHT 1. 38 in

END OPENING INSIDE DIAMETER 4 in

OVERALL HEIGHT 11. 88 in

HOUSING OUTSIDE DIAMETER 10. 5 in

FILTRATION, MECHANICAL SPECIFICATIONS AND TEST STANDARDS

CAPACITY 825 g SAE J726

INITIAL EFFICIENCY 98 % SAE J726

FINAL EFFICIENCY 99. 9 % SAE J726

RATED FLOW 687 ft3/min

PRODUCT INFORMATION

Part No : AH1900400

----------------------------------------------------------------------

DEFINITION AND MAIN DIMENSIONS

Part Type AIR FILTER HOUSING

Configuration HOUSING

Flow Direction OUTSIDE/IN

Part Function HOUSING

END OPENING HEIGHT 1. 38 in

END OPENING INSIDE DIAMETER 4 in

OVERALL HEIGHT 11. 88 in

HOUSING OUTSIDE DIAMETER 10. 5 in

FILTRATION, MECHANICAL SPECIFICATIONS AND TEST STANDARDS

CAPACITY 830 g

INITIAL EFFICIENCY 98 %

FINAL EFFICIENCY 99. 9 %

RATED FLOW 918. 19 ft3/min

HIGH TEMP 235 F°

LOW TEMP -20 F°

HIGH HUMIDITY 98%

LOW HUMIDITY 1%