How Many Dual Carburetor SJs Were Built?

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05 Jan 2015 07:58 #28814 by TheOMDude
TheOMDude created the topic: How Many Dual Carburetor SJs Were Built?
I am a docent at the Petersen Automotive Museum in Los Angeles. We are currently closed, but are exhibiting some of our cars at the Ronald Regan Presidential Library. Starting February 1, 2015, that exhibit will include our 1933 Murphy Convertible Coupe.
I am preparing a presentation on Duesenbergs for the Pit Crew at the Petersen.
Various sources say there were 36 or 37 supercharged Js (and several were retrofitted), but none mention how many were built with the supercharger and the dual carburetor "Ram's Horn" manifold, like our car.
I understand there is one in a Museum in Texas, and I presume the Mormon Meteor was another. I saw that the 1334 Rollston Limousine and the 1933 SJ Brunn Riviera Convertible Sedan that appeared in the Pebble Beach Concours d'Elegance last August both had it.
That makes five. Does anyone know about any others?

Dick Stewart
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06 Jan 2015 14:21 #28823 by landmark
landmark replied the topic:
Hello Dick,

maybe this older thread could be helpful.

http://forums.acdclub.org/phpbb2/viewto ... 7db8d3497a


Cheers

Matt

Was man besonders gerne tut,
ist selten ganz besonders gut

Wilhelm Busch

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06 Jan 2015 14:33 #28824 by Bob Roller
Bob Roller replied the topic: Dual carburetor SJ's
Consulting a somewhat faded memory of mine,the rams horn twin manifolds was supposedly an idea to get the power up on the Duesenberg Special in 1935.J572 has a dual carburetor supercharger but a standard manifold.The 1933 Brunn Riviera was SJ528 and sister car SJ525 had the single carburetor superchargers and the third one had no supercharger.
I am familiar with SJ528 as an unsupercharged car and the owner of record in 1951 told me he had the blower for it.I remember seeing it when we delivered the remains of J467 to him in late 1953. I have also heard there were six dual carburetor superchargers made but have no way no verify it.

Bob Roller

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06 Jan 2015 21:59 #28826 by Tom Georgeson
Tom Georgeson replied the topic: dual carbs.
I'm sure that Randy came give you the correct numbers of cars with this set up.

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06 Jan 2015 23:24 #28828 by TheOMDude
TheOMDude replied the topic: Thanks for the Attempts.
You people are talking 'way over my head.
I am a newbie on this board and chassis and engine numbers are Greek to me.
My purpose in posting was to have a basis upon which to state how rare the Petersen's 1933 Murphy Convertible Coupe is.
If anyone knows the chassis or engine number of those I have mentioned, that would help:

The Petersen's 1933 Murphy Convertible Coupe.
The 1933 Murphy Roadster (Chassis 235?) in the Central Texas Museum of Automotive History in Rosanky, Texas.
The 1933 SJ Brunn Riviera Convertible Sedan shown last summer at Pebble Beach.
The 1934 Rollston Limousine shown last summer at Pebble Beach.
The Mormon Meteor?

Meanwhile, it looks as though my initial guess of "a handful" is pretty close.
Thanks again for making the effort.

Dick Stewart
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07 Jan 2015 16:25 #28831 by Justin Kerns
Justin Kerns replied the topic:
Rare is completely relative. To some 1 of 100 is rare and to others it is common. You asked for a number and the truth is that there are only a few people who can answer that with some authority. Tom already suggested you contact Randy Ema and I would also suggest talking to Chris Summers. Between the two of them you should get the best available information.

In the world of Duesenberg one has to be specific as to chassis/engine numbers or things get confused very quickly. Hell it's confusing enough even when you have all the details! If you want to properly inform others as to the answer to your question then you really need a specific list of cars with numbers and body styles. Generalities and guesses just lead to the propagation of more Duesenberg misinformation.

That's my $.02!

Justin

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1932 Auburn 12-160A Sedan

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