BHAF vs K/N

[jpearson]

I have been running a K/N in a ventilated stock air box which seems to work pretty good. Yesterday I installed a BHAF without a heat shield and it don't seem to work as good as the K/N, EGT's get up quicker and the BHAF is a lot quieter than the K/N set-up. which I don't like, but I do want the best performance. My question is how much does a heat shield help the EGT's with the BHAF.

 

[illflem]

I found LarryBs turbo shield reduced the temps on the side of the filter by 20%. Didn't see a correlation in egt reduction though but it could have been because I did my before and after measurements on a 20° winter day.



I don't care what people say, it's hard to beat a K&N

 

[Cummins4Life]

I dont trust myself enough to use a K&N. My BHAF supplies enough air for my purposes.

 

[Gary - K7GLD]

I think installation problems cause many of the problems with the K&N.



Guys over-oil them, are sorta careless installing them, especially as related to being careful to make sure they are getting a good filter-to-airbox seal... Fact is, many STOCK filters leak at the seals too - and the same need for careful attention applies to THEM as well.



Certainly, the BHAF is probably the easiest to install properly, and pretty unbeatable as to airflow and efficiency - after playing around with my own K&N for a while, I'd sorta like to try the BHAF myself - IF I can also come up with a mount arrangement that helps it not look like Frankenstein's monster...



Edited by TDR Admin on 09/27/02.

 

[Ram4Sam]

Pelotas grande!

Gary, way to call em' as you see em'!! Couldn't agree more with you.



Sam

 

[Briar Hopper]

K & N is yesterday's news... . Try an AFE, either just the filter in the stock airbox, or a cone filter by itself, or the MegaCannon kit, which features a cone filter with its own heat shield/mount...

The quality, fit, & finish of Advanced Flow Engineering's air filters simply can't be beat !

Even the AFE filter for the stock airbox has a raised, half-round edge all around the outside, that offers better sealing than the K & N does with it's flat edge and silly little tube of grease !

Yes, I'm biased in their favor, but not simply because I sell them. Once you've seen one up close, you'll understand, and want one...

 

[Gary - K7GLD]

My primary concern to the K&N relates to it's ability to properly flow increased volume after mods such as the Edge Comp, which also involves boost modification placing LOTS more flow thru WHATEVER filter is in use. My nearly brand-new stock filter, after installing tne Comp, caused my filter minder to register 2/3 restriction on a steep grade when I put my foot into the throttle to check boost and EGT - NOT reassuring!



While I'm sure the K&N will flow enough air to prevent that from happening again - and I'm not REAL sure if the restriction was the filter itself, or the stock airbox, so I have now drilled that to permit better flow into the box...



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... I still am concerned that the K&N *might* be forced to allow more dirt passage thru it's element under extreme demand it might not be really designed for...



SO, as I posted in another thread, I'm doing sort of an informal test, where I carefully swabbed the turbo intake when the K&N was installed to see how much dirt the stock filter had allowed to pass in roughly 4000 miles or so, and will do the same after the K&N has been in about the same mileage...



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As I posted up further above - I was able to see where fine dirt particles had been allowed to flow at a couple of points around the seal on the STOCK filter - so it's obvious to me they CAN all have problems - not just K&N!

 

[Reb.B]

Scotty II and/ or AFE! Look at Joe D. 's hp figures in the last TDR Mag. AFE took the cake.

 

[illflem]

If the filter minder doesn't move you're getting all the air your engine can use, simple as that. I've pulled long grades loaded at 40 psi boost with a K&N and modified airbox like Gary's without moving it, works for me.