QJ questions:

U

Unclepennybags

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Joined Apr 25, 2000

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375 Posts

Discussion starter · #1 · Jan 11, 2003

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Saw a 17058503 Quadrajet today. It's the California version of the 17058203 Quadrajet (in other words 1978 350 Manual trans, CA emissions)

It had one small tube directly over each of the two primary nozzles. Anyone know what they do?

How does the CA calibration differ exactly? Is it richer? Is it leaner? Does the powervalve come in sooner/later?

Can you use one on a non-CA emissions equipped emissions car?

One more question: Anyone know the application for QJ #17059064?

As always! Thanks!

Mike

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BDE 327:
Bored .030", balanced, TRW 9.35:1 pistons, Crane Energizer cam .454" 216 @ .050", Trick Flow heads, Edelbrock Performer, Quadrajet.
Home page: http://home.peoplepc.com/ppages/viewpage.asp?MemberName=mbey

 

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charbilly2001

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Joined Oct 22, 2001

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3,051 Posts

#2 · Jan 12, 2003

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Mike how about a pic? Bill

 

Tom Mobley

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66 El Camino 57 Chevy pickup 2004 Tahoe

Joined Oct 9, 1998

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25,548 Posts

#3 · Jan 12, 2003

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me too on the pic, but it's probably an extra airbleed to lean out the Calif. carb even more. Sopme of the Calif Q's had huge air bleeds and are difficult to use for a performance carb for that reason.

Need a pic.

Tom

 

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Unclepennybags

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Discussion starter · #4 · Jan 13, 2003

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Sorry, can't get a pick.

Took the 503 carb apart today. .073" jets w/ .051" primary rod! Lean city.

I'm guessing the 17059064 carb is high altitude version of the 1979 17059216 carb, .071" primary jet w/ .045" primary rod. I'll try building this one first.

Had a 216 running over the summer (.072" .041") wasn't impressed with the mileage, but it was really responsive. I'm betting the .045" primary rod with a .072" jet will give me the best of both worlds.

Anyone know what a "P" stamped primary rod is?


Thanks!
Mike

------------------
BDE 327:
Bored .030", balanced, TRW 9.35:1 pistons, Crane Energizer cam .454" 216 @ .050", Trick Flow heads, Edelbrock Performer, Quadrajet.
Home page: http://home.peoplepc.com/ppages/viewpage.asp?MemberName=mbey

 

6

68ElCamino

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Joined Aug 18, 1999

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133 Posts

#5 · Jan 13, 2003

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David Vizard says;
"the 'P' type primary needle, has a slow thin taper, and is good for an application where one of the other needles (K or B) proves too lean.

Joe

 

U

Unclepennybags

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Joined Apr 25, 2000

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375 Posts

Discussion starter · #6 · Jan 13, 2003

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Joe,

Thanks! Do you remember what book Vizard discusses the "P" rod in? I'd like to read more about it.

------------------
BDE 327:
Bored .030", balanced, TRW 9.35:1 pistons, Crane Energizer cam .454" 216 @ .050", Trick Flow heads, Edelbrock Performer, Quadrajet.
Home page: http://home.peoplepc.com/ppages/viewpage.asp?MemberName=mbey