Slant Six Forum :: Docs duals

: Doc. Which rear dual exhaust would work best on
: a stock A100 (67) van? Has a single 1920
: carb, electronic ignition, cold air
: induction, and will run a second exhaust
: system on it. The stock manifold on it is
: cracked (of course) can you still use it for
: exchange? D.B. Wickstrom

: I still like the look of that

:
: But Doug, note the choke pocket on your
: example... just one of those 'gotchas' that
: people should know about.

: If the crack is in the front section of the
: manifold then we can use it for the
: "core".
:
: The modified factory casting is less expensive
: and allow use of the current exhaust system,
: you only need to add a new pipe for the
: front manifold.
:
: My new "Dutra" casting has a better
: flow but this is not a big issue with the 1
: BBL and "stock" SL6.
: Here is a look: DD

Author:	david wickstrom [ Tue Jul 10, 2001 10:45 am ]
Post subject:	Docs duals
Doc. Which rear dual exhaust would work best on a stock A100 (67) van? Has a single 1920 carb, electronic ignition, cold air induction, and will run a second exhaust system on it. The stock manifold on it is cracked (of course) can you still use it for exchange? D.B. Wickstrom dwickstrom@hotmail.com

Author:	Doctor Dodge (Doug Dutra) [ Tue Jul 10, 2001 2:38 pm ]
Post subject:	Re: Docs duals PIC
Quote: : Doc. Which rear dual exhaust would work best on : a stock A100 (67) van? Has a single 1920 : carb, electronic ignition, cold air : induction, and will run a second exhaust : system on it. The stock manifold on it is : cracked (of course) can you still use it for : exchange? D.B. Wickstrom If the crack is in the front section of the manifold then we can use it for the "core". The modified factory casting is less expensive and allow use of the current exhaust system, you only need to add a new pipe for the front manifold. My new "Dutra" casting has a better flow but this is not a big issue with the 1 BBL and "stock" SL6. Here is a look: DD

Author:	maxdart72 [ Tue Jul 10, 2001 7:13 pm ]
Post subject:	Re: Docs duals (choke poket)
I still like the look of that But Doug, note the choke pocket on your example... just one of those 'gotchas' that people should know about. Max

Author:	Doctor Dodge (Doug Dutra) [ Wed Jul 11, 2001 4:45 am ]
Post subject:	Re: Dutra Duals (choke pocket)
Quote: : I still like the look of that : : But Doug, note the choke pocket on your : example... just one of those 'gotchas' that : people should know about. What Max is pointing-out is that the PIC shows an early rear manifold with the 1bbl choke pocket. I make it a point to ask people what type of intake manifold / carb. will be used with the DD system and if the answer is the "Super-Six" 2 bbl, I make sure we get the later style manifold as the "core". These have a "choke pocket" with no rear wall section to allow the 2 bbl choke to work. I have an article coming together on all the manifolds, mounting tricks, etc. so the 3 different choke "pocket style" will be covered also. DD

Author:	Wesley A. Moeller [ Fri Jul 13, 2001 5:20 pm ]
Post subject:	Re: Docs duals
Quote: : If the crack is in the front section of the : manifold then we can use it for the : "core". : : The modified factory casting is less expensive : and allow use of the current exhaust system, : you only need to add a new pipe for the : front manifold. : : My new "Dutra" casting has a better : flow but this is not a big issue with the 1 : BBL and "stock" SL6. : Here is a look: DD Doug, You have a new "universal" casting that works on the rear three cylinders, right? How much is it? Thanks, Wes '78 Volare mbunjes@sprynet.com

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