[DeTomaso] High Ported Iron Closed Chamber 4V head flow results

[Sean Korb]

I'm not sure if this is germane but I am utterly fascinated.

http://speedtalk.com/forum/viewtopic.php?t=4785


On Sun, Feb 9, 2014 at 5:55 PM, Charles Engles <cengles at cox.net> wrote:
> Dear Dan,
>
>
>               You wrote:  "....and shear vanes screwed into the intake port
> floors."
>
>               For the amateur engine builder, what are shear vanes?
>
>                              Very curious,  Chuck Engles
>
> -----Original Message-----
> From: DeTomaso [mailto:detomaso-bounces at poca.com] On Behalf Of Daniel C
> Jones
> Sent: Sunday, February 09, 2014 4:24 PM
> To: POCA list
> Subject: [DeTomaso] High Ported Iron Closed Chamber 4V head flow results
>
> A while back, Dave McLain flowed a set of old iron closed chamber 4V heads
> with the 1970's Pro Stock style high port exhaust plate and shear vanes
> screwed into the intake port floors.  I thought I'd share the results.
> Flowed on a Super Flow bench.  Tested at 10" and converted to 28".  2.19"
> intake valve and 1.71" exhaust. Completely stock combustion chambers.
>
>  Lift   Intake Exhaust
>
>  Inch   CFM    CFM
>
>  0.025   15.9   10.2
>
>  0.050   33.2   28.5
>
>  0.100   65.6   60.0
>
>  0.150  100.6   89.0
>
>  0.200  137.8  109.8
>
>  0.250  167.6  124.1
>
>  0.300  195.8  141.4
>
>  0.350  224.0  155.4
>
>  0.400  245.6  166.8
>
>  0.450  261.4  176.7
>
>  0.500  278.8  185.3
>
>  0.550  289.7  194.7
>
>  0.600  300.9  204.2
>
>  0.650  312.1  215.2
>
>  0.700  322.0  225.8
>
>  0.750  325.7  234.4
>
>  0.800  307.8  239.7
>
> Not too bad for 1970's small block cylinder heads.
>
> Dan Jones
>
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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