do we need new AC

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Dec 17, 2014 | 10:43 AM

LKHA

Thread Starter

Road Captain

Joined: Nov 2007

Posts: 504

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From: NE IOWA

do we need new AC

Do we need new AC one of the sale points is how much better the AC flows. Just wondering if anyone has actually done a bench flow test.

Dec 17, 2014 | 10:49 AM

TexasRoper

Cruiser

Joined: Oct 2014

Posts: 158

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From: Decatur Tx

Don't need it if you leave everything else alone.

Yes, to your flow tests question

If you improve the flow out the *** end it is best to let it suck easier on the other end, then she wants more fuel. Then you have more noise, (and performance hopefully)

Last edited by TexasRoper; Dec 17, 2014 at 10:55 AM.

Dec 17, 2014 | 10:53 AM

Magnut1

Grand HDF Member

Joined: Aug 2014

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From: Toledo ohio

These stock air cleaners flow a little better than the 13-before from stock. So, your question is simple yet perplexing. If you are going to keep stock, then no. If you are going to put on slip fits, then no. If you add a tuner, you don't "have" to. Saying all that. You have to give us a clue to your intentions. If you want more power, then yes. If you change the A/C, then you have to add a tuner. If you have more air going in (AC) and more fuel (tuner), then you want to free up the air going out. How? Simple answer is bust out the cat, add some slip ons. Or you can leave the cat in and add some slip ons. Or you can go true duals or power duals. Sky is the limit. What is your intentions?

Dec 17, 2014 | 11:58 AM

batman.

Road Master

Joined: Jun 2014

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From: westland Michigan

There was a posting somewhere either here or on the touring side that had flow numbers for the ac but i cant remember where it was at now.

Batman

Dec 17, 2014 | 12:31 PM

Gwaxley

Road Warrior

Joined: Jun 2014

Posts: 1,745

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From: Lafayette La

Quote:

Originally Posted by LKHA

Do we need new AC one of the sale points is how much better the AC flows. Just wondering if anyone has actually done a bench flow test.

Search hd forums (Overthinking air cleaners?)

Dec 17, 2014 | 02:08 PM

LKHA

Thread Starter

Road Captain

Joined: Nov 2007

Posts: 504

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From: NE IOWA

Exactly over thinking it. I have everything purchased. But sitting here with arm in sling I have two much time on my hands. We are not building drag machines I know we are giving them a little more fuel with a tuner but how much air flow do they need.

Dec 17, 2014 | 02:54 PM

dvn4life

Cruiser

Joined: May 2014

Posts: 104

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From: Houston

I can't find the thread right now...but essentially that flow test you're referring to determined that the backing plate opening on the new Rushmore models are responsible for the increase in intake flow.

I'll find it later when I have more time, if someone else doesn't get it on here by then.

Incidentally, oiled air filter media flows less air and allows more particulate matter into the intake. Look here.

http://www.nicoclub.com/archives/kn-vs-oem-filter.html

Now if it makes you feel better to have that oiled filter media, then how it really flows is irrelevant...suit yourself in my book.