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Heat for Clifford Intake?
https://slantsix.org/forum/viewtopic.php?t=34039		 Page 1 of 1
Author:  wjajr [ Sat Feb 28, 2009 6:56 pm ]
Post subject:  Heat for Clifford Intake?
Is there a bolt on device that can heat a Clifford intake # M-4500?

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Author:  Joshie225 [ Sat Feb 28, 2009 7:22 pm ]
Post subject: 
Clifford used to offer a plate that bolted on the bottom of the manifold to be plumbed to the exhaust system. Frank Raso is a Northerner (Ontario) who made a plate for the bottom of his Offy intake and is using water heat. Water heat isn't as fast, but it's considerably better than nothing. In any case you'd need to have the bottom of the manifold finish machined and tapped to accept a plate.
Author:  wjajr [ Sun Mar 01, 2009 5:45 am ]
Post subject: 
Thanks Josh. Very simple fix. How deep should the coolant well be? The Clifford raised casting under the manifold is only 3/8" deep. I would think that a depth equal to or greater than the ID of the heater hose would be needed for unrestricted flow.

New Idea Department:

This morning after a cup of DD Coffee, not my usual old fart "caffeine lite" slop the wife feeds me, kicked in, why not heat the manifold electrically? Then several more questions clicked into my buzzing head: what to use for a heating element; how to get the heat to the manifold; would there be enough BTU's from this device to over come the heat loss from the air/ fuel flow to make a difference?

Could a modified electric seat heater conductor work if somehow compactly arranged in a coil like an electric stove element, packed in silicone grease or such incased within that 3/8" well, and controlled by a thermostat or timer work? Are there other junk yard finds that could perform this task? Or, am I on a fool's errand looking for a "Flux Capacitor" powered K-Car?
Author:  ceej [ Sun Mar 01, 2009 8:58 am ]
Post subject: 
I'll look around at work tomorrow.
We use small blanket heaters on some of our regulators to keep them from freezing up. (5000# dropping to 100#, stuff like that.)

Most of them are 110 VAC devices, but I remember seeing 24 VDC heaters. If I remember correctly, they are high draw at low voltages though.

The smallest controllers I have are 24 vdc powered as well, but I thought Watlow made one that could run between 10 and 36 vdc. On/Off or Pulse Duration Proportional, pretty limited, but that should be sufficient to the task. A little digging tomorrow, and I'll report back on who makes what.

:D

CJ
Author:  wjajr [ Sun Mar 01, 2009 9:47 am ]
Post subject: 
Josh & Ceej, I found that AMC/Jeep uses an electric intake manifold heater. Scroll to bottom of this page to view heater, and how it is housed.

I wonder if this device could be retrofitted to a Clifford manifold. What is not clear to me is if this device is placed into the air/fuel stream, or just heats the bottom of the manifold casting.
Author:  SlantSixDan [ Sun Mar 01, 2009 10:16 am ]
Post subject: 
It protrudes up thru the floor of the intake; those prongs are exposed to incoming fuel/air mix. It would be difficult but maybe not impossible to machine the Clifford intake to accept this kind of heater — you'd need to check vertical clearance inside the intake. Also, while it might be effective for a 1bbl, it would not be very effective for a 4bbl, because of its small size. It's not a manifold heater, it's an electric hot spot. Also, you'd need to substantially beef up your charging system to make something like this work effectively.

I think the easiest and most effective setup would be a bolt-on water box under the intake, inline with one of the heater hoses (supply or return, depending on your priorities), plus a working thermostatic air cleaner.
Author:  Joshie225 [ Sun Mar 01, 2009 10:25 am ]
Post subject: 
That AMC setup is pretty ugly. The things factories did for emission controls. My '96 Cummins Ram had an intake heater. That thing sucked down major juice. You'd see the volt meter drop a lot when it cycled on even with two group 27 batteries and a large alternator.

I would use a thermostatic air cleaner to feed hot air into the engine right after startup and heat the manifold with coolant to keep the temp up.
Author:  wjajr [ Sun Mar 01, 2009 10:59 am ]
Post subject: 
The PIA factor of electrically heating the manifold has now exceeded my hoop jumping ability. The idea has jumped the shark...

Back to fabing up a hydronic hot spot...


Josh:
Quote:
I would use a thermostatic air cleaner to feed hot air into the engine right after startup and heat the manifold with coolant to keep the temp up.
Has anyone a photo of a heat box thay have made to power a thermostatic air cleaner utilizing Clifford Headers?
Author:  Joshie225 [ Sun Mar 01, 2009 11:54 am ]
Post subject: 
The Edelbrock hot air kit looks better than the Headman one. I'd be tempted to build my own at that price point, but I'm cheap and own a welder. I probably even have the right size exhaust tubing to surround a header tube.

BTW, the street car has an Offy intake and stock exhaust manifold with the flapper jammed in the open position. No lack of heat at all. No problems with the open element air cleaner either, but the cold season is milder around here. The race car is getting a Clifford intake and headers, but my Clifford has water heat built in should I feel the need. The point is street cars have different requirements than race cars.
Author:  SlantSixDan [ Sun Mar 01, 2009 12:09 pm ]
Post subject: 
Saying "price point" when you actually mean "price" is a habit almost as evil as smoking cigarettes. Image :lol:
Author:  wjajr [ Sun Mar 01, 2009 2:12 pm ]
Post subject: 
Josh:
Quote:
The point is street cars have different requirements than race cars.
I know, but I'm trying to work with what I have.

That Edelbrock hot air kit looks so simple. Much simpler than what I was thinking of. A chunk of exhaust pipe sliced & diced with a few tack welds would work real nice. Thanks.
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