[DeTomaso] vacuum pump

[Gray Gregory]

Big farm Tractors use this system too and if it stops working you'll plug an air cleaner in just a few hours in a dusty field.

Gray

-----Original Message-----
From: detomaso-bounces at poca.com [mailto:detomaso-bounces at poca.com] On Behalf Of Guido deTomaso
Sent: Wednesday, February 06, 2013 5:19 PM
To: detomaso at poca.com
Subject: Re: [DeTomaso] vacuum pump



Failed to mention earlier, there are infinity of military vehicles that use a venturi / draft tube arrangement on the exhaust pipe to suck dirt out of the air cleaner pre-cleaner, another data point.

Think you'd want to put the miniature draft tubes as close to the exhaust outlets as possible, where the pressure is lowest but velocity the same.

GD




________________________________
From: Sean Korb <spkorb at gmail.com>
To: detomaso at poca.com
Sent: Tue, February 5, 2013 5:35:57 PM
Subject: Re: [DeTomaso] vacuum pump

I think it may work well on my application.  I have 2.25" exhaust so velocity at idle will be pretty good.  And I don't need much PVC at idle, but it really squirts my dipstick out (read that however you
like) when I lay the hammer down.

sean

On Tue, Feb 5, 2013 at 6:35 PM, Guido deTomaso <guido_detomaso at prodigy.net> wrote:
> Gotta be better than "sealed crankcase" ( which is nothing )  ... 
> maybe even better than road draft tube.  That exhaust is zipping by 
> faster than the slipstream, I reckon.
>
> Also Keith Martin of SCM claimed some success at reducing the blow-by 
> on an
old
> Ferrari he was thrashing.  Reducing it getting into the cabin that is.
>
>
> GD
>
>
>
>
>
>
> ________________________________
> From: "MikeLDrew at aol.com" <MikeLDrew at aol.com>
> To: julian_kift at hotmail.com; guido_detomaso at prodigy.net; 
> detomaso at poca.com
> Sent: Mon, February 4, 2013 3:42:51 PM
> Subject: Re: [DeTomaso] vacuum pump
>
>
> In a message dated 2/4/13 15 09 51, julian_kift at hotmail.com writes:
>
>
>
> Yes, like this.....
>
> http://www.poca.com/index.php/gallery/?g2_itemId=11228
>
>
>
>>>>Wasn't this idea discussed at length here some time ago, and people 
>>>>far
>>smarter
>>>>than I am on such matters agreed that such systems are only 
>>>>marginally
>>>effective
>>>>at drag racing rpm, and completely and totally useless on a street car?
>
> Mike
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--
Sean Korb spkorb at spkorb.org http://www.spkorb.org
'65,'68 Mustangs,'68 Cougar,'78 R100/7,'60 Metro,'59 A35,'71 Pantera #1382 "The more you drive, the less intelligent you get" --Miller "Computers are useless.  They can only give you answers." -P. Picasso _______________________________________________

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