[DeTomaso] Dog Bone (B & M) air cleaner

Tue Mar 10 09:58:25 EDT 2009

Kirby, and all . . .

It seems different folks get different results.  I do remember someone  
trying multiple filter elements and not changing the results.  
(possibly in error, but my feeble mind "remembers" this).  If the  
filter elements don't change the results then I have deducted that the  
sharp turn for the airflow is the problem.
In addition, someone has stated the need to run a spacer to alleviate  
the problem.

Since I have no dog in this fight, no horse in this race, and no  
engine cover . . . . it don't matter beans to me.  I do stand my  
beliefs in not restricting air flow but guess I don't know much about  
dog bones.

If you had some fresh snow to shovel you wouldn't be so fiesty!!!!

best regards,

Quoting Kirby Schrader <kirby.schrader at gmail.com>:

> I will now butt in here and reinforce Will's statement about this dogbone
> air filter song and dance/dog and pony show.
>
> As he said, this subject comes up time and time again here on the forum,
> gets beat to death, and nobody wants to remember the actual, numbers are
> there, why aren't we paying attention to them, dyno testing that Space City
> Panteras did with the dogbone?
>
> John Taphorn has reported on this many times. The 'dogbone' did not hurt at
> all. Sharp turn included.
>
> Yes, I'm feeling feisty this morning. Let's ignore the facts and keep
> talking!
> Sigh...
>
> Kirby
>
>
>
> On Tue, Mar 10, 2009 at 8:14 AM, <adin at frontier.net> wrote:
>
>>
>> Jack, and all . . .
>>
>> Yes, the flow is not the filtration, but the sharp turn the air must
>> make.  Haven't we seen folks double up the filters (both sides 2x
>> elements)???
>>
>> As far as airflow is concerned: one cannot have tooo much.  this has
>> been demonstrated with the supercharged toyota (have you cut your
>> airbox, Jack?), the Kirkham w/ webers and now the 460 powered truck
>> (with 5" of vacuum it is a little sensitive to tuning).
>>
>> Personally, I'd let the motor breathe rather than have a cool engine
>> cover - just my OPINION.
>>
>> thanks for the note.
>>
>> David
>>
>>
>> Quoting JDeRyke at aol.com:
>>
>> > In a message dated 3/9/09 5:33:25 PM, adin at frontier.net writes:
>> >
>> >> Seems there was some question about the flow with these puppies . . .
>> >>
>> > Thats a question that's come up repeatedly in the last 10-12 years,
>> David,
>> > and the flow restriction is not the reuseable K & N filters on the ends.
>> It
>> > seems to be the 90 degree turn from the plenum between the two side
>> > filters to the
>> > carb throat(s). If the inside of of the plenum is too close to the carb
>> top,
>> > the turn is too sharp and airflow will be restricted. Some are and some
>> > aren't, according to their owners, and a lot of the flow restriction
>> >  will only occur
>> > at higher rpms. I've seen at least one type that needed a 3/4" high
>> spacer to
>> > allow 5500 rpms in one Pantera. If you drive sedately, any dogbone will
>> work
>> > just fine.   Besides this possibility, the B&M at least is a heavy
>> > cast-aluminum unit weighing over 8 lbs, with the weight about as
>> > high-mounted as
>> > possible. For comparison, a 14" Moroso air cleaner with
>> > sheet-aluminum top & bottoms
>> > weighs 1-1/2 lbs and has more filter area.... if you can make it fit.
>> FWIW- J
>> > DeRyke
>> >
>> >
>> > **************
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