[DeTomaso] Exhaust port tongues

[cengles at cox.net]

Dear Mark, 

I just remembered that the Great 351C Dyno Project ramrodded by Dan Jones will be testing this. I loaned Dan Jones my set of bronze exhaust port stingers for testing. There have been claims for benefits with both intake and exhaust port "tongues", but there has been a paucity of any actual dyno proven benefits. Send a donation to Dan Jones to aid the completion of this most excellent project. 

Warmest regards, Chuck Engles


---- mark skwarek <ehpantera at yahoo.com> wrote:
>Goran,
>I don't think epoxie will work on the exhaust ports as it gets too hot.
>Mark
>
>--- On Fri, 6/19/09, Göran Malmberg <hemipanter at hemipanter.se> wrote:
>
>
>From: Göran Malmberg <hemipanter at hemipanter.se>
>Subject: Re: [DeTomaso] Exhaust port tongues
>To: "'Tomas Gunnarsson'" <guson at home.se>, detomaso at realbig.com
>Date: Friday, June 19, 2009, 5:39 AM
>
>
>The 2V manifold uses the bottom part of the runner so its no
>alternative. Filling the bottom of a 4V manifold with epoxie
>is the trick.
>Goran
>
>-----Ursprungligt meddelande-----
>Från: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com]
>För Tomas Gunnarsson
>Skickat: den 19 juni 2009 11:25
>Till: detomaso at realbig.com
>Ämne: Re: [DeTomaso] Exhaust port tongues
>
>How does one make the intake manifold and header match the new reduced
>ports? By porting a 2V intake manifold? With an unaltered 4V intake
>manifold there will be a terrible "bump" against the port plate.
>
>Tomas
>
>----- Original Message -----
>From: "Fredrik Gustavsson" <pantera at fastcat.se>
>To: <JDeRyke at aol.com>; <ehpantera at yahoo.com>; <detomaso at realbig.com>
>Sent: Friday, June 19, 2009 11:13 AM
>Subject: Re: [DeTomaso] Exhaust port tongues
>
>
>>Held by the header flange.
>>http://www.mpgheads.com/PortPlate/PortPlateDetail.htm
>>
>>Fredrik
>>------------------------------------------------
>>
>>Can someone please tell me where I can get weld in exhaust port
>tongues
>>for a 351c 4V
>>
>>These units do not normally weld in but are simply held by the header
>fange
>>and its bolts. The exhaust gasses are moving fast enough so a small
>joint
>>between the 'tongue' and the head is totally unnoticed by the flow.
>And of
>>course, they are unnecessary with all known aluminum heads. There are
>two
>>known types: one is cast bronze while the other is made from cut &
>welded
>>stainless plate. Both reportedly work. Lance NIst sells (or did sell)
>them;
>>dunno
>>who else might. Call the Pantera vendors and inquire: these are
>30-yr-old
>>tuning aids and there may be a useable set from a scrapped car. Good
>luck- J
>>
>>Deryke
>