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PostPosted: Tue Mar 29, 2011 8:34 am 
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Supercharged
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Joined: Sun Nov 03, 2002 9:20 pm
Posts: 13052
Location: Fircrest, WA
Car Model: 76 D100
Quote:
why would I need a choke pocket with an electric choke???my guess is that the electric choke mount bolts to the threaded holes in the existing pocket
Quote:
You should also be aware that the Carbs Only electric choke setup bolts to the factory choke pocket. You cannot use the Carbs Only choke setup with a rear Dutra manifold.
Quote:
but I bet I can make a little bracket, that would do as well
Probably, but it would have to locate the choke unit in just about exactly the same spot as the factory choke pocket for the geometry of the Carbs Only electric choke linkage to work. Why reinvent the wheel for the sake of looks? But, it is your truck, so I won't say any more.


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PostPosted: Tue Mar 29, 2011 8:45 am 
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Guru
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Joined: Mon Oct 14, 2002 4:32 pm
Posts: 4880
Location: Working in Silicon Valley, USA
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I have added the cast iron choke pocket to Dutra manifolds...
Basically, cut the pocket off a factory exhaust manifold and nickel rod weld it to the new manifold... as they say, it's just "time & money".
DD


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PostPosted: Tue Mar 29, 2011 12:01 pm 
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Supercharged

Joined: Wed Sep 17, 2008 6:48 pm
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Location: Indianapolis
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Reed, I agree with everything that you and Slant Six Dan said,,
and that actually cuts to the chase about the best part of these old motors,, there are many ways to set them up.


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PostPosted: Tue Mar 29, 2011 3:20 pm 
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Turbo EFI
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Joined: Thu Nov 11, 2004 4:33 pm
Posts: 1004
Location: Sacramento, CA
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Quote:
wjajr
I did some searching on this forum and found another one of your posts under 'cold weather starting' where you mentioned the thermistor. I think you mentioned it was available through Holley,,, would you happen to have a part number or a resistance rating for one that is applicable?

thanks
The electric choke kit that Dan links to comes with one.


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PostPosted: Tue Mar 29, 2011 5:31 pm 
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Supercharged
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Joined: Sat Feb 16, 2008 1:25 pm
Posts: 5611
Location: Downeast Maine
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Quote:
The electric choke kit that Dan links to comes with one.
That is true ESP47, that device dose come with a thermistor, and looks to be a fine bit of equipment.

In my case I have a Holley 390 4v that has the electrically heated coil mounted on the side of the carburetor as do other makes. This particular carburetor is not close to any standard equipment carburetor used on a slant six except perhaps one of the Holley two barrel units that shares some of the jets and other bits with some of their 4 V models. Its model number escapes me at the moment.

The electric choke kit that Dan promotes is designed to be mounted at the choke stove, and has a rod attached that operates the choke plate as the original manifold heated device did. It is for all practical intents a stock replacement requiring little frigging around to install excepting running a conductor to supply 12 volts.

In a way we are comparing apples and oranges, but maybe not, if an after market intake manifold is used as well as an after market carburetor.

The point I was trying to make was that sometimes an electric choke may not work well as a standalone device without secondary controls such as a thermistor. The colder the climate, the greater requirement for a finely tuned choke if one is to get any drivability before full warm-up.

I can say that there is nothing more aggravating than sitting for several long minutes, feathering the throttle, performing a few restarts, before the car can be driven, just because it is 35 degrees out. Getting a choke-less or mal adjusted choke equipped engine to run by goosing the accelerator pump is ruff on the gigging. A lot of raw gas gets sent to the sump washing cylinder walls on its way.

So whatever one cobbles up for intake and exhaust there is a solution to correct cold & hot drivability problems lurking out there.

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