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just a quick question. has anyone seen or had dyno numbers with and without running an air filter. THIS IS FOR DYNO/TRACK PURPOSES ONLY!!!! i dont wanna hear how its stupid to drive around without a filter. almost everyone i see takes their filter off or always runs no filter on their setup for dyno/track runs

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  • I dont have the dyno numbers you're after since I've never seen anyone do a run with and without air filter.  But nonetheless, I really cant imagine what benefit you'd get since most BHAF's are rated

  • Mopar1973Man
    Mopar1973Man

    I can see for track or dyno purposes of putting on a velocity stack. Then when you are done with the fun I would toss the BHAF back on again.  

  • You might see a small gain.  There is only few percent difference in flow acceleration versus a pipe with a slight radius (stock, BHAF, etc) and a smooth radius.  A longer stack will net more gains th

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27 minutes ago, Dieselfuture said:

You can be first :thumb1: 

Not being a smart:moon: just maybe everyone thinks that that's how it's been done for ever and just take their k&n off and see an increase :lmao:

Makes you wonder why they still use k&n :think:

 

im going to i think. 2 weeks until MDS diesel showdown. 

25 minutes ago, AH64ID said:

 

I would research the BHAF you want to run and see what it's specs are. You might have to do a little shopping thou. 

 

Most people don't care what their numbers are without a filter as most wouldn't ever run without a filter. 

donaldson b105006 is the one ive read is pretty good. pretty sure it was recommended by moparman on a thread several years ago. unless there is one that new and exciting. 

 

it says rated flow Lr:450cfm

rated flow Mr:590 cfm

 

those seem awfully low dont they? What is Mr and Lr

Edited by cumminsVP2001

I don't see that part number on Donaldsons website, but yes that seems like too little flow for a larger turbo. It's likely great for a stock turbo. 

 

LR, MR, and HR are low, medium, and high restriction... which basically means how much vacuum they produce at said flow. 

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2 hours ago, AH64ID said:

I don't see that part number on Donaldsons website, but yes that seems like too little flow for a larger turbo. It's likely great for a stock turbo. 

 

LR, MR, and HR are low, medium, and high restriction... which basically means how much vacuum they produce at said flow. 

do you happen to have a part number for a high flowing one? this is the one i had pulled up https://www.amazon.com/Donaldson-kfB105006-B105006-Filter/dp/B00JYL2CF2

https://catalog.donaldson.com/productDetail/en/A/B125003?productId=11674&skuId=s10302 this is the highest flowing one i have found and with pressure rating which i guess means everything from a few forums ive read. looks like i winner

 

nevermind. i dont think that would even fit looking at the dimensions. 

Edited by cumminsVP2001

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6 minutes ago, KATOOM said:

Here's Donaldson's catalog.

Donaldson catalog.pdf

the next question is which is the best flowing but still fit a 24v

 

the 105006 is the best flowing but stil has a 4 inch outlet. but its only flowing 680 at its best

Edited by cumminsVP2001