[Tigers] Air cleaner & horsepower

[Larry Paulick]

Put the article on Tigers United, and then we all will have a place to 
go for future.

Larry

On 7/4/12 7:36 AM, Allan Ballard wrote:
> Thanks folks, the discussion has been very interesting.
>
> If ever I find the article again I'll report back.
>
> Allan Ballard
> Mk1a
>
> On 7/3/12 7:43 PM, Larry Paulick wrote:
>> I run a 2" K&N with stock air cleaner, and a stock 5.0 L with F4B and 
>> Holley Double Pumper, and roller rockers.  Dyno'ed at 297 hp and 347 
>> torque at 4700 rpm. I wanted a torque motor.   I also fabricated a 
>> cold air box and reverse hood scoop for positive air pressure, which 
>> of course could not be tested on the dyno.
>>
>> Larry
>>
>> On 7/3/12 5:50 PM, genepadgett at comcast.net wrote:
>>> I don't have the article you are recalling, but I did a lot of 
>>> research into this topic myself a couple of years ago.
>>>
>>> The K&N website has some good info on how their elements flow air 
>>> better than various other materials. In terms of shear surface area 
>>> the stock filter is woefully undersized. As I remember, even going 
>>> to the K&N 2 inch filter was not enough for a motor with any sort of 
>>> upper RPM power. I did all the computations about a motor being an 
>>> air pump, volume of air moved at various rpm, volumetric efficiency, 
>>> etc. Bottom line even the 2 inch K&N filter started choking off the 
>>> amount of air flow needed at about 4000 rpm with a 260 motor So any 
>>> operation above that threshold you would not be getting enough air 
>>> into the motor for optimal performance. Bigger motor, bigger 
>>> problem. Does it equate to 30 HP? I have no idea, only a dyno could 
>>> tell. And the dyno run should be with the hood closed, if that can 
>>> be done.
>>>
>>> Just my 2 cents.
>>>
>>> Gene
>>>
>>> ----- Original Message -----
>>> From: "Allan Ballard"<aballard at ix.netcom.com>
>>> To: "Tiger's Den"<tigers at autox.team.net>
>>> Sent: Tuesday, July 3, 2012 3:58:53 PM
>>> Subject: [Tigers] Air cleaner&  horsepower
>>>
>>> Somewhere I read that the factory air cleaner costs 30 horsepower 
>>> compared to
>>> a free flow filter.
>>>
>>> The coveted factory air cleaner housings look great nonetheless :)
>>>
>>> A friend challenged the 30 figure and now the article that I read 
>>> has gone
>>> missing.
>>>
>>> Does anyone have information on the factory air cleaner's impact on 
>>> horsepower
>>> ??
>>>
>>> Rgds
>>>
>>> Allan Ballard
>>> Mk1a
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